Merge tag 'powerpc-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Madhavan Srinivasan:

- Remove support for IBM Cell Blades

- SMP support for microwatt platform

- Support for inline static calls on PPC32

- Enable pmu selftests for power11 platform

- Enable hardware trace macro (HTM) hcall support

- Support for limited address mode capability

- Changes to RMA size from 512 MB to 768 MB to handle fadump

- Misc fixes and cleanups

Thanks to Abhishek Dubey, Amit Machhiwal, Andreas Schwab, Arnd Bergmann,
Athira Rajeev, Avnish Chouhan, Christophe Leroy, Disha Goel, Donet Tom,
Gaurav Batra, Gautam Menghani, Hari Bathini, Kajol Jain, Kees Cook,
Mahesh Salgaonkar, Michael Ellerman, Paul Mackerras, Ritesh Harjani
(IBM), Sathvika Vasireddy, Segher Boessenkool, Sourabh Jain, Vaibhav
Jain, and Venkat Rao Bagalkote.

* tag 'powerpc-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (61 commits)
powerpc/kexec: fix physical address calculation in clear_utlb_entry()
crypto: powerpc: Mark ghashp8-ppc.o as an OBJECT_FILES_NON_STANDARD
powerpc: Fix 'intra_function_call not a direct call' warning
powerpc/perf: Fix ref-counting on the PMU 'vpa_pmu'
KVM: PPC: Enable CAP_SPAPR_TCE_VFIO on pSeries KVM guests
powerpc/prom_init: Fixup missing #size-cells on PowerBook6,7
powerpc/microwatt: Add SMP support
powerpc: Define config option for processors with broadcast TLBIE
powerpc/microwatt: Define an idle power-save function
powerpc/microwatt: Device-tree updates
powerpc/microwatt: Select COMMON_CLK in order to get the clock framework
net: toshiba: Remove reference to PPC_IBM_CELL_BLADE
net: spider_net: Remove powerpc Cell driver
cpufreq: ppc_cbe: Remove powerpc Cell driver
genirq: Remove IRQ_EDGE_EOI_HANDLER
docs: Remove reference to removed CBE_CPUFREQ_SPU_GOVERNOR
powerpc: Remove UDBG_RTAS_CONSOLE
powerpc/io: Use standard barrier macros in io.c
powerpc/io: Rename _insw_ns() etc.
powerpc/io: Use generic raw accessors
...

CREDITS

···
 D: various lockdep annotations, autofs and other random bugfixes
 S: Prague, Czech Republic
 
+N: Ishizaki Kou
+E: [e-mail]
+D: Spidernet driver for PowerPC Cell platforms
+
 N: Gene Kozin
 E: [e-mail]
 W: https://www.sangoma.com
···
 S: Markham, Ontario
 S: L3R 8B2
 S: Canada
+
+N: Christian Krafft
+D: PowerPC Cell support
 
 N: Maxim Krasnyansky
 E: [e-mail]
···
 S: ICP vortex GmbH
 S: Neckarsulm
 S: Germany
+
+N: Geoff Levand
+E: [e-mail]
+D: Spidernet driver for PowerPC Cell platforms
 
 N: Phil Lewis
 E: [e-mail]

Documentation/ABI/testing/sysfs-kernel-fadump

···
 Contact:	[e-mail]
 Description:	read/write
 		This is a special sysfs file available to setup additional
-		parameters to be passed to capture kernel.
+		parameters to be passed to capture kernel. For HASH MMU it
+		is exported only if RMA size higher than 768MB.

Documentation/admin-guide/kernel-per-CPU-kthreads.rst

···
 		due to the rtas_event_scan() function.
 		WARNING:  Please check your CPU specifications to
 		make sure that this is safe on your particular system.
-	e.	If running on Cell Processor, build your kernel with
-		CBE_CPUFREQ_SPU_GOVERNOR=n to avoid OS jitter from
-		spu_gov_work().
-		WARNING:  Please check your CPU specifications to
-		make sure that this is safe on your particular system.
-	f.	If running on PowerMAC, build your kernel with
+	e.	If running on PowerMAC, build your kernel with
 		CONFIG_PMAC_RACKMETER=n to disable the CPU-meter,
 		avoiding OS jitter from rackmeter_do_timer().
 

Documentation/arch/powerpc/firmware-assisted-dump.rst

···
    e.g.
      # echo 1 > /sys/firmware/opal/mpipl/release_core
 
+-- Support for Additional Kernel Arguments in Fadump
+   Fadump has a feature that allows passing additional kernel arguments
+   to the fadump kernel. This feature was primarily designed to disable
+   kernel functionalities that are not required for the fadump kernel
+   and to reduce its memory footprint while collecting the dump.
+
+  Command to Add Additional Kernel Parameters to Fadump:
+  e.g.
+  # echo "nr_cpus=16" > /sys/kernel/fadump/bootargs_append
+
+  The above command is sufficient to add additional arguments to fadump.
+  An explicit service restart is not required.
+
+  Command to Retrieve the Additional Fadump Arguments:
+  e.g.
+  # cat /sys/kernel/fadump/bootargs_append
+
+Note: Additional kernel arguments for fadump with HASH MMU is only
+      supported if the RMA size is greater than 768 MB. If the RMA
+      size is less than 768 MB, the kernel does not export the
+      /sys/kernel/fadump/bootargs_append sysfs node.
+
 Implementation details:
 -----------------------
 

Documentation/arch/powerpc/papr_hcalls.rst

···
 subsequent hcalls to the hypervisor until the hcall is completely serviced
 at which point H_SUCCESS or other error is returned by the hypervisor.
 
+**H_HTM**
+
+| Input: flags, target, operation (op), op-param1, op-param2, op-param3
+| Out: *dumphtmbufferdata*
+| Return Value: *H_Success,H_Busy,H_LongBusyOrder,H_Partial,H_Parameter,
+		 H_P2,H_P3,H_P4,H_P5,H_P6,H_State,H_Not_Available,H_Authority*
+
+H_HTM supports setup, configuration, control and dumping of Hardware Trace
+Macro (HTM) function and its data. HTM buffer stores tracing data for functions
+like core instruction, core LLAT and nest.
+
 References
 ==========
 .. [1] "Power Architecture Platform Reference"

Documentation/networking/device_drivers/ethernet/index.rst

···
    ti/cpsw_switchdev
    ti/am65_nuss_cpsw_switchdev
    ti/tlan
-   toshiba/spider_net
    wangxun/txgbe
    wangxun/ngbe
 

Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst

···
-.. SPDX-License-Identifier: GPL-2.0
-
-===========================
-The Spidernet Device Driver
-===========================
-
-Written by Linas Vepstas <[e-mail]>
-
-Version of 7 June 2007
-
-Abstract
-========
-This document sketches the structure of portions of the spidernet
-device driver in the Linux kernel tree. The spidernet is a gigabit
-ethernet device built into the Toshiba southbridge commonly used
-in the SONY Playstation 3 and the IBM QS20 Cell blade.
-
-The Structure of the RX Ring.
-=============================
-The receive (RX) ring is a circular linked list of RX descriptors,
-together with three pointers into the ring that are used to manage its
-contents.
-
-The elements of the ring are called "descriptors" or "descrs"; they
-describe the received data. This includes a pointer to a buffer
-containing the received data, the buffer size, and various status bits.
-
-There are three primary states that a descriptor can be in: "empty",
-"full" and "not-in-use".  An "empty" or "ready" descriptor is ready
-to receive data from the hardware. A "full" descriptor has data in it,
-and is waiting to be emptied and processed by the OS. A "not-in-use"
-descriptor is neither empty or full; it is simply not ready. It may
-not even have a data buffer in it, or is otherwise unusable.
-
-During normal operation, on device startup, the OS (specifically, the
-spidernet device driver) allocates a set of RX descriptors and RX
-buffers. These are all marked "empty", ready to receive data. This
-ring is handed off to the hardware, which sequentially fills in the
-buffers, and marks them "full". The OS follows up, taking the full
-buffers, processing them, and re-marking them empty.
-
-This filling and emptying is managed by three pointers, the "head"
-and "tail" pointers, managed by the OS, and a hardware current
-descriptor pointer (GDACTDPA). The GDACTDPA points at the descr
-currently being filled. When this descr is filled, the hardware
-marks it full, and advances the GDACTDPA by one.  Thus, when there is
-flowing RX traffic, every descr behind it should be marked "full",
-and everything in front of it should be "empty".  If the hardware
-discovers that the current descr is not empty, it will signal an
-interrupt, and halt processing.
-
-The tail pointer tails or trails the hardware pointer. When the
-hardware is ahead, the tail pointer will be pointing at a "full"
-descr. The OS will process this descr, and then mark it "not-in-use",
-and advance the tail pointer.  Thus, when there is flowing RX traffic,
-all of the descrs in front of the tail pointer should be "full", and
-all of those behind it should be "not-in-use". When RX traffic is not
-flowing, then the tail pointer can catch up to the hardware pointer.
-The OS will then note that the current tail is "empty", and halt
-processing.
-
-The head pointer (somewhat mis-named) follows after the tail pointer.
-When traffic is flowing, then the head pointer will be pointing at
-a "not-in-use" descr. The OS will perform various housekeeping duties
-on this descr. This includes allocating a new data buffer and
-dma-mapping it so as to make it visible to the hardware. The OS will
-then mark the descr as "empty", ready to receive data. Thus, when there
-is flowing RX traffic, everything in front of the head pointer should
-be "not-in-use", and everything behind it should be "empty". If no
-RX traffic is flowing, then the head pointer can catch up to the tail
-pointer, at which point the OS will notice that the head descr is
-"empty", and it will halt processing.
-
-Thus, in an idle system, the GDACTDPA, tail and head pointers will
-all be pointing at the same descr, which should be "empty". All of the
-other descrs in the ring should be "empty" as well.
-
-The show_rx_chain() routine will print out the locations of the
-GDACTDPA, tail and head pointers. It will also summarize the contents
-of the ring, starting at the tail pointer, and listing the status
-of the descrs that follow.
-
-A typical example of the output, for a nearly idle system, might be::
-
-    net eth1: Total number of descrs=256
-    net eth1: Chain tail located at descr=20
-    net eth1: Chain head is at 20
-    net eth1: HW curr desc (GDACTDPA) is at 21
-    net eth1: Have 1 descrs with stat=x40800101
-    net eth1: HW next desc (GDACNEXTDA) is at 22
-    net eth1: Last 255 descrs with stat=xa0800000
-
-In the above, the hardware has filled in one descr, number 20. Both
-head and tail are pointing at 20, because it has not yet been emptied.
-Meanwhile, hw is pointing at 21, which is free.
-
-The "Have nnn decrs" refers to the descr starting at the tail: in this
-case, nnn=1 descr, starting at descr 20. The "Last nnn descrs" refers
-to all of the rest of the descrs, from the last status change. The "nnn"
-is a count of how many descrs have exactly the same status.
-
-The status x4... corresponds to "full" and status xa... corresponds
-to "empty". The actual value printed is RXCOMST_A.
-
-In the device driver source code, a different set of names are
-used for these same concepts, so that::
-
-    "empty" == SPIDER_NET_DESCR_CARDOWNED == 0xa
-    "full"  == SPIDER_NET_DESCR_FRAME_END == 0x4
-    "not in use" == SPIDER_NET_DESCR_NOT_IN_USE == 0xf
-
-
-The RX RAM full bug/feature
-===========================
-
-As long as the OS can empty out the RX buffers at a rate faster than
-the hardware can fill them, there is no problem. If, for some reason,
-the OS fails to empty the RX ring fast enough, the hardware GDACTDPA
-pointer will catch up to the head, notice the not-empty condition,
-ad stop. However, RX packets may still continue arriving on the wire.
-The spidernet chip can save some limited number of these in local RAM.
-When this local ram fills up, the spider chip will issue an interrupt
-indicating this (GHIINT0STS will show ERRINT, and the GRMFLLINT bit
-will be set in GHIINT1STS).  When the RX ram full condition occurs,
-a certain bug/feature is triggered that has to be specially handled.
-This section describes the special handling for this condition.
-
-When the OS finally has a chance to run, it will empty out the RX ring.
-In particular, it will clear the descriptor on which the hardware had
-stopped. However, once the hardware has decided that a certain
-descriptor is invalid, it will not restart at that descriptor; instead
-it will restart at the next descr. This potentially will lead to a
-deadlock condition, as the tail pointer will be pointing at this descr,
-which, from the OS point of view, is empty; the OS will be waiting for
-this descr to be filled. However, the hardware has skipped this descr,
-and is filling the next descrs. Since the OS doesn't see this, there
-is a potential deadlock, with the OS waiting for one descr to fill,
-while the hardware is waiting for a different set of descrs to become
-empty.
-
-A call to show_rx_chain() at this point indicates the nature of the
-problem. A typical print when the network is hung shows the following::
-
-    net eth1: Spider RX RAM full, incoming packets might be discarded!
-    net eth1: Total number of descrs=256
-    net eth1: Chain tail located at descr=255
-    net eth1: Chain head is at 255
-    net eth1: HW curr desc (GDACTDPA) is at 0
-    net eth1: Have 1 descrs with stat=xa0800000
-    net eth1: HW next desc (GDACNEXTDA) is at 1
-    net eth1: Have 127 descrs with stat=x40800101
-    net eth1: Have 1 descrs with stat=x40800001
-    net eth1: Have 126 descrs with stat=x40800101
-    net eth1: Last 1 descrs with stat=xa0800000
-
-Both the tail and head pointers are pointing at descr 255, which is
-marked xa... which is "empty". Thus, from the OS point of view, there
-is nothing to be done. In particular, there is the implicit assumption
-that everything in front of the "empty" descr must surely also be empty,
-as explained in the last section. The OS is waiting for descr 255 to
-become non-empty, which, in this case, will never happen.
-
-The HW pointer is at descr 0. This descr is marked 0x4.. or "full".
-Since its already full, the hardware can do nothing more, and thus has
-halted processing. Notice that descrs 0 through 254 are all marked
-"full", while descr 254 and 255 are empty. (The "Last 1 descrs" is
-descr 254, since tail was at 255.) Thus, the system is deadlocked,
-and there can be no forward progress; the OS thinks there's nothing
-to do, and the hardware has nowhere to put incoming data.
-
-This bug/feature is worked around with the spider_net_resync_head_ptr()
-routine. When the driver receives RX interrupts, but an examination
-of the RX chain seems to show it is empty, then it is probable that
-the hardware has skipped a descr or two (sometimes dozens under heavy
-network conditions). The spider_net_resync_head_ptr() subroutine will
-search the ring for the next full descr, and the driver will resume
-operations there.  Since this will leave "holes" in the ring, there
-is also a spider_net_resync_tail_ptr() that will skip over such holes.
-
-As of this writing, the spider_net_resync() strategy seems to work very
-well, even under heavy network loads.
-
-
-The TX ring
-===========
-The TX ring uses a low-watermark interrupt scheme to make sure that
-the TX queue is appropriately serviced for large packet sizes.
-
-For packet sizes greater than about 1KBytes, the kernel can fill
-the TX ring quicker than the device can drain it. Once the ring
-is full, the netdev is stopped. When there is room in the ring,
-the netdev needs to be reawakened, so that more TX packets are placed
-in the ring. The hardware can empty the ring about four times per jiffy,
-so its not appropriate to wait for the poll routine to refill, since
-the poll routine runs only once per jiffy.  The low-watermark mechanism
-marks a descr about 1/4th of the way from the bottom of the queue, so
-that an interrupt is generated when the descr is processed. This
-interrupt wakes up the netdev, which can then refill the queue.
-For large packets, this mechanism generates a relatively small number
-of interrupts, about 1K/sec. For smaller packets, this will drop to zero
-interrupts, as the hardware can empty the queue faster than the kernel
-can fill it.

MAINTAINERS

···
 F:	include/uapi/linux/spi/
 F:	tools/spi/
 
-SPIDERNET NETWORK DRIVER for CELL
-M:	Ishizaki Kou <[e-mail]>
-M:	Geoff Levand <[e-mail]>
-L:	[e-mail]
-L:	[e-mail]
-S:	Maintained
-F:	Documentation/networking/device_drivers/ethernet/toshiba/spider_net.rst
-F:	drivers/net/ethernet/toshiba/spider_net*
-
 SPMI SUBSYSTEM
 M:	Stephen Boyd <[e-mail]>
 L:	[e-mail]

arch/powerpc/Kconfig

···
 	select HAVE_STACKPROTECTOR		if PPC32 && $(cc-option,$(m32-flag) -mstack-protector-guard=tls -mstack-protector-guard-reg=r2 -mstack-protector-guard-offset=0)
 	select HAVE_STACKPROTECTOR		if PPC64 && $(cc-option,$(m64-flag) -mstack-protector-guard=tls -mstack-protector-guard-reg=r13 -mstack-protector-guard-offset=0)
 	select HAVE_STATIC_CALL			if PPC32
+	select HAVE_STATIC_CALL_INLINE		if PPC32
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_VIRT_CPU_ACCOUNTING
 	select HAVE_VIRT_CPU_ACCOUNTING_GEN
···
 config PPC_DCR_NATIVE
 	bool
 
-config PPC_DCR_MMIO
-	bool
-
 config PPC_DCR
 	bool
-	depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
+	depends on PPC_DCR_NATIVE
 	default y
 
 config PPC_PCI_OF_BUS_MAP
···
 	  PCI domains. When this option is enabled then PCI bus numbers are
 	  PCI domain dependent and each PCI controller on own domain can have
 	  256 PCI buses, like it is on other Linux architectures.
-
-config PPC_OF_PLATFORM_PCI
-	bool
-	depends on PCI
-	depends on PPC64 # not supported on 32 bits yet
 
 config ARCH_SUPPORTS_UPROBES
 	def_bool y

arch/powerpc/Kconfig.debug

···
 	help
 	  Select this to enable early debugging via the RTAS panel.
 
-config PPC_EARLY_DEBUG_RTAS_CONSOLE
-	bool "RTAS Console"
-	depends on PPC_RTAS
-	select UDBG_RTAS_CONSOLE
-	help
-	  Select this to enable early debugging via the RTAS console.
-
 config PPC_EARLY_DEBUG_PAS_REALMODE
 	bool "PA Semi real mode"
 	depends on PPC_PASEMI

arch/powerpc/boot/Makefile

···
 src-plat-$(CONFIG_EPAPR_BOOT) += epapr.c epapr-wrapper.c
 src-plat-$(CONFIG_PPC_PSERIES) += pseries-head.S
 src-plat-$(CONFIG_PPC_POWERNV) += pseries-head.S
-src-plat-$(CONFIG_PPC_IBM_CELL_BLADE) += pseries-head.S
 src-plat-$(CONFIG_MVME7100) += motload-head.S mvme7100.c
 
 src-plat-$(CONFIG_PPC_MICROWATT) += fixed-head.S microwatt.c
···
 
 image-$(CONFIG_PPC_PSERIES)		+= zImage.pseries
 image-$(CONFIG_PPC_POWERNV)		+= zImage.pseries
-image-$(CONFIG_PPC_IBM_CELL_BLADE)	+= zImage.pseries
 image-$(CONFIG_PPC_PS3)			+= dtbImage.ps3
 image-$(CONFIG_PPC_CHRP)		+= zImage.chrp
 image-$(CONFIG_PPC_EFIKA)		+= zImage.chrp

arch/powerpc/boot/dts/microwatt.dts

···
 /dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	#size-cells = <0x02>;
···
 
 	aliases {
 		serial0 = &UART0;
+		ethernet = &enet0;
 	};
 
 	reserved-memory {
···
 
 		ibm,powerpc-cpu-features {
 			display-name = "Microwatt";
-			isa = <3000>;
+			isa = <3010>;
 			device_type = "cpu-features";
 			compatible = "ibm,powerpc-cpu-features";
 
 			mmu-radix {
 				isa = <3000>;
-				usable-privilege = <2>;
+				usable-privilege = <6>;
+				os-support = <0>;
 			};
 
 			little-endian {
-				isa = <2050>;
-				usable-privilege = <3>;
+				isa = <0>;
+				usable-privilege = <7>;
+				os-support = <0>;
 				hwcap-bit-nr = <1>;
 			};
 
 			cache-inhibited-large-page {
-				isa = <2040>;
-				usable-privilege = <2>;
+				isa = <0>;
+				usable-privilege = <6>;
+				os-support = <0>;
 			};
 
 			fixed-point-v3 {
 				isa = <3000>;
-				usable-privilege = <3>;
+				usable-privilege = <7>;
 			};
 
 			no-execute {
-				isa = <2010>;
+				isa = <0x00>;
 				usable-privilege = <2>;
+				os-support = <0>;
 			};
 
 			floating-point {
+				hfscr-bit-nr = <0>;
 				hwcap-bit-nr = <27>;
 				isa = <0>;
-				usable-privilege = <3>;
+				usable-privilege = <7>;
+				hv-support = <1>;
+				os-support = <0>;
+			};
+
+			prefixed-instructions {
+				hfscr-bit-nr = <13>;
+				fscr-bit-nr = <13>;
+				isa = <3010>;
+				usable-privilege = <7>;
+				os-support = <1>;
+				hv-support = <1>;
+			};
+
+			tar {
+				hfscr-bit-nr = <8>;
+				fscr-bit-nr = <8>;
+				isa = <2070>;
+				usable-privilege = <7>;
+				os-support = <1>;
+				hv-support = <1>;
+				hwcap-bit-nr = <58>;
+			};
+
+			control-register {
+				isa = <0>;
+				usable-privilege = <7>;
+			};
+
+			system-call-vectored {
+				isa = <3000>;
+				usable-privilege = <7>;
+				os-support = <1>;
+				fscr-bit-nr = <12>;
+				hwcap-bit-nr = <52>;
 			};
 		};
 
···
 			ibm,mmu-lpid-bits = <12>;
 			ibm,mmu-pid-bits = <20>;
 		};
+
+		PowerPC,Microwatt@1 {
+			i-cache-sets = <2>;
+			ibm,dec-bits = <64>;
+			reservation-granule-size = <64>;
+			clock-frequency = <100000000>;
+			timebase-frequency = <100000000>;
+			i-tlb-sets = <1>;
+			ibm,ppc-interrupt-server#s = <1>;
+			i-cache-block-size = <64>;
+			d-cache-block-size = <64>;
+			d-cache-sets = <2>;
+			i-tlb-size = <64>;
+			cpu-version = <0x990000>;
+			status = "okay";
+			i-cache-size = <0x1000>;
+			ibm,processor-radix-AP-encodings = <0x0c 0xa0000010 0x20000015 0x4000001e>;
+			tlb-size = <0>;
+			tlb-sets = <0>;
+			device_type = "cpu";
+			d-tlb-size = <128>;
+			d-tlb-sets = <2>;
+			reg = <1>;
+			general-purpose;
+			64-bit;
+			d-cache-size = <0x1000>;
+			ibm,chip-id = <0>;
+			ibm,mmu-lpid-bits = <12>;
+			ibm,mmu-pid-bits = <20>;
+		};
 	};
 
 	soc@c0000000 {
···
 
 		interrupt-controller@4000 {
 			compatible = "openpower,xics-presentation", "ibm,ppc-xicp";
-			ibm,interrupt-server-ranges = <0x0 0x1>;
-			reg = <0x4000 0x100>;
+			ibm,interrupt-server-ranges = <0x0 0x2>;
+			reg = <0x4000 0x10 0x4010 0x10>;
 		};
 
 		ICS: interrupt-controller@5000 {
···
 			interrupts = <0x10 0x1>;
 		};
 
-		ethernet@8020000 {
+		gpio: gpio@7000 {
+			device_type = "gpio";
+			compatible = "faraday,ftgpio010";
+			gpio-controller;
+			#gpio-cells = <2>;
+			reg = <0x7000 0x80>;
+			interrupts = <0x14 1>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+
+		enet0: ethernet@8020000 {
 			compatible = "litex,liteeth";
 			reg = <0x8021000 0x100
 				0x8020800 0x100
···
 			reg-names = "phy", "core", "reader", "writer", "irq";
 			bus-width = <4>;
 			interrupts = <0x13 1>;
-			cap-sd-highspeed;
 			clocks = <&sys_clk>;
 		};
 	};

arch/powerpc/configs/cell_defconfig

···
 CONFIG_PS3_ROM=m
 CONFIG_PS3_FLASH=m
 CONFIG_PS3_LPM=m
-CONFIG_PPC_IBM_CELL_BLADE=y
 CONFIG_RTAS_FLASH=y
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
···
 CONFIG_SKY2=m
 CONFIG_GELIC_NET=m
 CONFIG_GELIC_WIRELESS=y
-CONFIG_SPIDER_NET=y
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
 # CONFIG_SERIO_I8042 is not set

arch/powerpc/configs/ppc64_defconfig

···
 CONFIG_PS3_ROM=m
 CONFIG_PS3_FLASH=m
 CONFIG_PS3_LPM=m
-CONFIG_PPC_IBM_CELL_BLADE=y
 CONFIG_RTAS_FLASH=m
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
···
 CONFIG_SUNGEM=y
 CONFIG_GELIC_NET=m
 CONFIG_GELIC_WIRELESS=y
-CONFIG_SPIDER_NET=m
 CONFIG_BROADCOM_PHY=m
 CONFIG_MARVELL_PHY=y
 CONFIG_PPP=m

arch/powerpc/crypto/Makefile

···
 OBJECT_FILES_NON_STANDARD_aesp10-ppc.o := y
 OBJECT_FILES_NON_STANDARD_ghashp10-ppc.o := y
 OBJECT_FILES_NON_STANDARD_aesp8-ppc.o := y
+OBJECT_FILES_NON_STANDARD_ghashp8-ppc.o := y

arch/powerpc/include/asm/cell-pmu.h

···
 
 /* Macros for the pm_control register. */
 #define CBE_PM_16BIT_CTR(ctr)              (1 << (24 - ((ctr) & (NR_PHYS_CTRS - 1))))
-#define CBE_PM_ENABLE_PERF_MON             0x80000000
-#define CBE_PM_STOP_AT_MAX                 0x40000000
-#define CBE_PM_TRACE_MODE_GET(pm_control)  (((pm_control) >> 28) & 0x3)
-#define CBE_PM_TRACE_MODE_SET(mode)        (((mode)  & 0x3) << 28)
-#define CBE_PM_TRACE_BUF_OVFLW(bit)        (((bit) & 0x1) << 17)
-#define CBE_PM_COUNT_MODE_SET(count)       (((count) & 0x3) << 18)
-#define CBE_PM_FREEZE_ALL_CTRS             0x00100000
-#define CBE_PM_ENABLE_EXT_TRACE            0x00008000
-#define CBE_PM_SPU_ADDR_TRACE_SET(msk)     (((msk) & 0x3) << 9)
 
 /* Macros for the trace_address register. */
-#define CBE_PM_TRACE_BUF_FULL              0x00000800
 #define CBE_PM_TRACE_BUF_EMPTY             0x00000400
-#define CBE_PM_TRACE_BUF_DATA_COUNT(ta)    ((ta) & 0x3ff)
-#define CBE_PM_TRACE_BUF_MAX_COUNT         0x400
-
-/* Macros for the pm07_control registers. */
-#define CBE_PM_CTR_INPUT_MUX(pm07_control) (((pm07_control) >> 26) & 0x3f)
-#define CBE_PM_CTR_INPUT_CONTROL           0x02000000
-#define CBE_PM_CTR_POLARITY                0x01000000
-#define CBE_PM_CTR_COUNT_CYCLES            0x00800000
-#define CBE_PM_CTR_ENABLE                  0x00400000
-#define PM07_CTR_INPUT_MUX(x)              (((x) & 0x3F) << 26)
-#define PM07_CTR_INPUT_CONTROL(x)          (((x) & 1) << 25)
-#define PM07_CTR_POLARITY(x)               (((x) & 1) << 24)
-#define PM07_CTR_COUNT_CYCLES(x)           (((x) & 1) << 23)
-#define PM07_CTR_ENABLE(x)                 (((x) & 1) << 22)
-
-/* Macros for the pm_status register. */
-#define CBE_PM_CTR_OVERFLOW_INTR(ctr)      (1 << (31 - ((ctr) & 7)))
 
 enum pm_reg_name {
 	group_control,
···
 	pm_interval,
 	pm_start_stop,
 };
-
-/* Routines for reading/writing the PMU registers. */
-extern u32  cbe_read_phys_ctr(u32 cpu, u32 phys_ctr);
-extern void cbe_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val);
-extern u32  cbe_read_ctr(u32 cpu, u32 ctr);
-extern void cbe_write_ctr(u32 cpu, u32 ctr, u32 val);
-
-extern u32  cbe_read_pm07_control(u32 cpu, u32 ctr);
-extern void cbe_write_pm07_control(u32 cpu, u32 ctr, u32 val);
-extern u32  cbe_read_pm(u32 cpu, enum pm_reg_name reg);
-extern void cbe_write_pm(u32 cpu, enum pm_reg_name reg, u32 val);
-
-extern u32  cbe_get_ctr_size(u32 cpu, u32 phys_ctr);
-extern void cbe_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size);
-
-extern void cbe_enable_pm(u32 cpu);
-extern void cbe_disable_pm(u32 cpu);
-
-extern void cbe_read_trace_buffer(u32 cpu, u64 *buf);
-
-extern void cbe_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask);
-extern void cbe_disable_pm_interrupts(u32 cpu);
-extern u32  cbe_get_and_clear_pm_interrupts(u32 cpu);
-extern void cbe_sync_irq(int node);
-
-#define CBE_COUNT_SUPERVISOR_MODE       0
-#define CBE_COUNT_HYPERVISOR_MODE       1
-#define CBE_COUNT_PROBLEM_MODE          2
-#define CBE_COUNT_ALL_MODES             3
 
 #endif /* __ASM_CELL_PMU_H__ */

arch/powerpc/include/asm/cell-regs.h

···
 
 #include <asm/cell-pmu.h>
 
-/*
- *
- * Some HID register definitions
- *
- */
-
-/* CBE specific HID0 bits */
-#define HID0_CBE_THERM_WAKEUP	0x0000020000000000ul
-#define HID0_CBE_SYSERR_WAKEUP	0x0000008000000000ul
-#define HID0_CBE_THERM_INT_EN	0x0000000400000000ul
-#define HID0_CBE_SYSERR_INT_EN	0x0000000200000000ul
-
-#define MAX_CBE		2
-
-/*
- *
- * Pervasive unit register definitions
- *
- */
-
-union spe_reg {
-	u64 val;
-	u8 spe[8];
-};
-
-union ppe_spe_reg {
-	u64 val;
-	struct {
-		u32 ppe;
-		u32 spe;
-	};
-};
-
-
-struct cbe_pmd_regs {
-	/* Debug Bus Control */
-	u64	pad_0x0000;					/* 0x0000 */
-
-	u64	group_control;					/* 0x0008 */
-
-	u8	pad_0x0010_0x00a8 [0x00a8 - 0x0010];		/* 0x0010 */
-
-	u64	debug_bus_control;				/* 0x00a8 */
-
-	u8	pad_0x00b0_0x0100 [0x0100 - 0x00b0];		/* 0x00b0 */
-
-	u64	trace_aux_data;					/* 0x0100 */
-	u64	trace_buffer_0_63;				/* 0x0108 */
-	u64	trace_buffer_64_127;				/* 0x0110 */
-	u64	trace_address;					/* 0x0118 */
-	u64	ext_tr_timer;					/* 0x0120 */
-
-	u8	pad_0x0128_0x0400 [0x0400 - 0x0128];		/* 0x0128 */
-
-	/* Performance Monitor */
-	u64	pm_status;					/* 0x0400 */
-	u64	pm_control;					/* 0x0408 */
-	u64	pm_interval;					/* 0x0410 */
-	u64	pm_ctr[4];					/* 0x0418 */
-	u64	pm_start_stop;					/* 0x0438 */
-	u64	pm07_control[8];				/* 0x0440 */
-
-	u8	pad_0x0480_0x0800 [0x0800 - 0x0480];		/* 0x0480 */
-
-	/* Thermal Sensor Registers */
-	union	spe_reg	ts_ctsr1;				/* 0x0800 */
-	u64	ts_ctsr2;					/* 0x0808 */
-	union	spe_reg	ts_mtsr1;				/* 0x0810 */
-	u64	ts_mtsr2;					/* 0x0818 */
-	union	spe_reg	ts_itr1;				/* 0x0820 */
-	u64	ts_itr2;					/* 0x0828 */
-	u64	ts_gitr;					/* 0x0830 */
-	u64	ts_isr;						/* 0x0838 */
-	u64	ts_imr;						/* 0x0840 */
-	union	spe_reg	tm_cr1;					/* 0x0848 */
-	u64	tm_cr2;						/* 0x0850 */
-	u64	tm_simr;					/* 0x0858 */
-	union	ppe_spe_reg tm_tpr;				/* 0x0860 */
-	union	spe_reg	tm_str1;				/* 0x0868 */
-	u64	tm_str2;					/* 0x0870 */
-	union	ppe_spe_reg tm_tsr;				/* 0x0878 */
-
-	/* Power Management */
-	u64	pmcr;						/* 0x0880 */
-#define CBE_PMD_PAUSE_ZERO_CONTROL	0x10000
-	u64	pmsr;						/* 0x0888 */
-
-	/* Time Base Register */
-	u64	tbr;						/* 0x0890 */
-
-	u8	pad_0x0898_0x0c00 [0x0c00 - 0x0898];		/* 0x0898 */
-
-	/* Fault Isolation Registers */
-	u64	checkstop_fir;					/* 0x0c00 */
-	u64	recoverable_fir;				/* 0x0c08 */
-	u64	spec_att_mchk_fir;				/* 0x0c10 */
-	u32	fir_mode_reg;					/* 0x0c18 */
-	u8	pad_0x0c1c_0x0c20 [4];				/* 0x0c1c */
-#define CBE_PMD_FIR_MODE_M8		0x00800
-	u64	fir_enable_mask;				/* 0x0c20 */
-
-	u8	pad_0x0c28_0x0ca8 [0x0ca8 - 0x0c28];		/* 0x0c28 */
-	u64	ras_esc_0;					/* 0x0ca8 */
-	u8	pad_0x0cb0_0x1000 [0x1000 - 0x0cb0];		/* 0x0cb0 */
-};
-
-extern struct cbe_pmd_regs __iomem *cbe_get_pmd_regs(struct device_node *np);
-extern struct cbe_pmd_regs __iomem *cbe_get_cpu_pmd_regs(int cpu);
-
-/*
- * PMU shadow registers
- *
- * Many of the registers in the performance monitoring unit are write-only,
- * so we need to save a copy of what we write to those registers.
- *
- * The actual data counters are read/write. However, writing to the counters
- * only takes effect if the PMU is enabled. Otherwise the value is stored in
- * a hardware latch until the next time the PMU is enabled. So we save a copy
- * of the counter values if we need to read them back while the PMU is
- * disabled. The counter_value_in_latch field is a bitmap indicating which
- * counters currently have a value waiting to be written.
- */
-
-struct cbe_pmd_shadow_regs {
-	u32 group_control;
-	u32 debug_bus_control;
-	u32 trace_address;
-	u32 ext_tr_timer;
-	u32 pm_status;
-	u32 pm_control;
-	u32 pm_interval;
-	u32 pm_start_stop;
-	u32 pm07_control[NR_CTRS];
-
-	u32 pm_ctr[NR_PHYS_CTRS];
-	u32 counter_value_in_latch;
-};
-
-extern struct cbe_pmd_shadow_regs *cbe_get_pmd_shadow_regs(struct device_node *np);
-extern struct cbe_pmd_shadow_regs *cbe_get_cpu_pmd_shadow_regs(int cpu);
-
-/*
- *
- * IIC unit register definitions
- *
- */
-
-struct cbe_iic_pending_bits {
-	u32 data;
-	u8 flags;
-	u8 class;
-	u8 source;
-	u8 prio;
-};
-
-#define CBE_IIC_IRQ_VALID	0x80
-#define CBE_IIC_IRQ_IPI		0x40
-
-struct cbe_iic_thread_regs {
-	struct cbe_iic_pending_bits pending;
-	struct cbe_iic_pending_bits pending_destr;
-	u64 generate;
-	u64 prio;
-};
-
-struct cbe_iic_regs {
-	u8	pad_0x0000_0x0400[0x0400 - 0x0000];		/* 0x0000 */
-
-	/* IIC interrupt registers */
-	struct	cbe_iic_thread_regs thread[2];			/* 0x0400 */
-
-	u64	iic_ir;						/* 0x0440 */
-#define CBE_IIC_IR_PRIO(x)      (((x) & 0xf) << 12)
-#define CBE_IIC_IR_DEST_NODE(x) (((x) & 0xf) << 4)
-#define CBE_IIC_IR_DEST_UNIT(x) ((x) & 0xf)
-#define CBE_IIC_IR_IOC_0        0x0
-#define CBE_IIC_IR_IOC_1S       0xb
-#define CBE_IIC_IR_PT_0         0xe
-#define CBE_IIC_IR_PT_1         0xf
-
-	u64	iic_is;						/* 0x0448 */
-#define CBE_IIC_IS_PMI		0x2
-
-	u8	pad_0x0450_0x0500[0x0500 - 0x0450];		/* 0x0450 */
-
-	/* IOC FIR */
-	u64	ioc_fir_reset;					/* 0x0500 */
-	u64	ioc_fir_set;					/* 0x0508 */
-	u64	ioc_checkstop_enable;				/* 0x0510 */
-	u64	ioc_fir_error_mask;				/* 0x0518 */
-	u64	ioc_syserr_enable;				/* 0x0520 */
-	u64	ioc_fir;					/* 0x0528 */
-
-	u8	pad_0x0530_0x1000[0x1000 - 0x0530];		/* 0x0530 */
-};
-
-extern struct cbe_iic_regs __iomem *cbe_get_iic_regs(struct device_node *np);
-extern struct cbe_iic_regs __iomem *cbe_get_cpu_iic_regs(int cpu);
-
-
-struct cbe_mic_tm_regs {
-	u8	pad_0x0000_0x0040[0x0040 - 0x0000];		/* 0x0000 */
-
-	u64	mic_ctl_cnfg2;					/* 0x0040 */
-#define CBE_MIC_ENABLE_AUX_TRC		0x8000000000000000LL
-#define CBE_MIC_DISABLE_PWR_SAV_2	0x0200000000000000LL
-#define CBE_MIC_DISABLE_AUX_TRC_WRAP	0x0100000000000000LL
-#define CBE_MIC_ENABLE_AUX_TRC_INT	0x0080000000000000LL
-
-	u64	pad_0x0048;					/* 0x0048 */
-
-	u64	mic_aux_trc_base;				/* 0x0050 */
-	u64	mic_aux_trc_max_addr;				/* 0x0058 */
-	u64	mic_aux_trc_cur_addr;				/* 0x0060 */
-	u64	mic_aux_trc_grf_addr;				/* 0x0068 */
-	u64	mic_aux_trc_grf_data;				/* 0x0070 */
-
-	u64	pad_0x0078;					/* 0x0078 */
-
-	u64	mic_ctl_cnfg_0;					/* 0x0080 */
-#define CBE_MIC_DISABLE_PWR_SAV_0	0x8000000000000000LL
-
-	u64	pad_0x0088;					/* 0x0088 */
-
-	u64	slow_fast_timer_0;				/* 0x0090 */
-	u64	slow_next_timer_0;				/* 0x0098 */
-
-	u8	pad_0x00a0_0x00f8[0x00f8 - 0x00a0];		/* 0x00a0 */
-	u64    	mic_df_ecc_address_0;				/* 0x00f8 */
-
-	u8	pad_0x0100_0x01b8[0x01b8 - 0x0100];		/* 0x0100 */
-	u64    	mic_df_ecc_address_1;				/* 0x01b8 */
-
-	u64	mic_ctl_cnfg_1;					/* 0x01c0 */
-#define CBE_MIC_DISABLE_PWR_SAV_1	0x8000000000000000LL
-
-	u64	pad_0x01c8;					/* 0x01c8 */
-
-	u64	slow_fast_timer_1;				/* 0x01d0 */
-	u64	slow_next_timer_1;				/* 0x01d8 */
-
-	u8	pad_0x01e0_0x0208[0x0208 - 0x01e0];		/* 0x01e0 */
-	u64	mic_exc;					/* 0x0208 */
-#define CBE_MIC_EXC_BLOCK_SCRUB		0x0800000000000000ULL
-#define CBE_MIC_EXC_FAST_SCRUB		0x0100000000000000ULL
-
-	u64	mic_mnt_cfg;					/* 0x0210 */
-#define CBE_MIC_MNT_CFG_CHAN_0_POP	0x0002000000000000ULL
-#define CBE_MIC_MNT_CFG_CHAN_1_POP	0x0004000000000000ULL
-
-	u64	mic_df_config;					/* 0x0218 */
-#define CBE_MIC_ECC_DISABLE_0		0x4000000000000000ULL
-#define CBE_MIC_ECC_REP_SINGLE_0	0x2000000000000000ULL
-#define CBE_MIC_ECC_DISABLE_1		0x0080000000000000ULL
-#define CBE_MIC_ECC_REP_SINGLE_1	0x0040000000000000ULL
-
-	u8	pad_0x0220_0x0230[0x0230 - 0x0220];		/* 0x0220 */
-	u64	mic_fir;					/* 0x0230 */
-#define CBE_MIC_FIR_ECC_SINGLE_0_ERR	0x0200000000000000ULL
-#define CBE_MIC_FIR_ECC_MULTI_0_ERR	0x0100000000000000ULL
-#define CBE_MIC_FIR_ECC_SINGLE_1_ERR	0x0080000000000000ULL
-#define CBE_MIC_FIR_ECC_MULTI_1_ERR	0x0040000000000000ULL
-#define CBE_MIC_FIR_ECC_ERR_MASK	0xffff000000000000ULL
-#define CBE_MIC_FIR_ECC_SINGLE_0_CTE	0x0000020000000000ULL
-#define CBE_MIC_FIR_ECC_MULTI_0_CTE	0x0000010000000000ULL
-#define CBE_MIC_FIR_ECC_SINGLE_1_CTE	0x0000008000000000ULL
-#define CBE_MIC_FIR_ECC_MULTI_1_CTE	0x0000004000000000ULL
-#define CBE_MIC_FIR_ECC_CTE_MASK	0x0000ffff00000000ULL
-#define CBE_MIC_FIR_ECC_SINGLE_0_RESET	0x0000000002000000ULL
-#define CBE_MIC_FIR_ECC_MULTI_0_RESET	0x0000000001000000ULL
-#define CBE_MIC_FIR_ECC_SINGLE_1_RESET	0x0000000000800000ULL
-#define CBE_MIC_FIR_ECC_MULTI_1_RESET	0x0000000000400000ULL
-#define CBE_MIC_FIR_ECC_RESET_MASK	0x00000000ffff0000ULL
-#define CBE_MIC_FIR_ECC_SINGLE_0_SET	0x0000000000000200ULL
-#define CBE_MIC_FIR_ECC_MULTI_0_SET	0x0000000000000100ULL
-#define CBE_MIC_FIR_ECC_SINGLE_1_SET	0x0000000000000080ULL
-#define CBE_MIC_FIR_ECC_MULTI_1_SET	0x0000000000000040ULL
-#define CBE_MIC_FIR_ECC_SET_MASK	0x000000000000ffffULL
-	u64	mic_fir_debug;					/* 0x0238 */
-
-	u8	pad_0x0240_0x1000[0x1000 - 0x0240];		/* 0x0240 */
-};
-
-extern struct cbe_mic_tm_regs __iomem *cbe_get_mic_tm_regs(struct device_node *np);
-extern struct cbe_mic_tm_regs __iomem *cbe_get_cpu_mic_tm_regs(int cpu);
-
-
 /* Cell page table entries */
 #define CBE_IOPTE_PP_W		0x8000000000000000ul /* protection: write */
 #define CBE_IOPTE_PP_R		0x4000000000000000ul /* protection: read */
···
 #define CBE_IOPTE_RPN_Mask	0x07fffffffffff000ul /* RPN */
 #define CBE_IOPTE_H		0x0000000000000800ul /* cache hint */
 #define CBE_IOPTE_IOID_Mask	0x00000000000007fful /* ioid */
-
-/* some utility functions to deal with SMT */
-extern u32 cbe_get_hw_thread_id(int cpu);
-extern u32 cbe_cpu_to_node(int cpu);
-extern u32 cbe_node_to_cpu(int node);
-
-/* Init this module early */
-extern void cbe_regs_init(void);
-
 
 #endif /* CBE_REGS_H */

arch/powerpc/include/asm/dcr-generic.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
- *                    <[e-mail]>
- */
-
-#ifndef _ASM_POWERPC_DCR_GENERIC_H
-#define _ASM_POWERPC_DCR_GENERIC_H
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-
-enum host_type_t {DCR_HOST_MMIO, DCR_HOST_NATIVE, DCR_HOST_INVALID};
-
-typedef struct {
-	enum host_type_t type;
-	union {
-		dcr_host_mmio_t mmio;
-		dcr_host_native_t native;
-	} host;
-} dcr_host_t;
-
-extern bool dcr_map_ok_generic(dcr_host_t host);
-
-extern dcr_host_t dcr_map_generic(struct device_node *dev, unsigned int dcr_n,
-			  unsigned int dcr_c);
-extern void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c);
-
-extern u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n);
-
-extern void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value);
-
-#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
-#endif /* _ASM_POWERPC_DCR_GENERIC_H */
-
-

arch/powerpc/include/asm/dcr-mmio.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
- *                    <[e-mail]>
- */
-
-#ifndef _ASM_POWERPC_DCR_MMIO_H
-#define _ASM_POWERPC_DCR_MMIO_H
-#ifdef __KERNEL__
-
-#include <asm/io.h>
-
-typedef struct {
-	void __iomem *token;
-	unsigned int stride;
-	unsigned int base;
-} dcr_host_mmio_t;
-
-static inline bool dcr_map_ok_mmio(dcr_host_mmio_t host)
-{
-	return host.token != NULL;
-}
-
-extern dcr_host_mmio_t dcr_map_mmio(struct device_node *dev,
-				    unsigned int dcr_n,
-				    unsigned int dcr_c);
-extern void dcr_unmap_mmio(dcr_host_mmio_t host, unsigned int dcr_c);
-
-static inline u32 dcr_read_mmio(dcr_host_mmio_t host, unsigned int dcr_n)
-{
-	return in_be32(host.token + ((host.base + dcr_n) * host.stride));
-}
-
-static inline void dcr_write_mmio(dcr_host_mmio_t host,
-				  unsigned int dcr_n,
-				  u32 value)
-{
-	out_be32(host.token + ((host.base + dcr_n) * host.stride), value);
-}
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_POWERPC_DCR_MMIO_H */
-
-

arch/powerpc/include/asm/dcr.h

···
 #ifndef __ASSEMBLY__
 #ifdef CONFIG_PPC_DCR
 
-#ifdef CONFIG_PPC_DCR_NATIVE
 #include <asm/dcr-native.h>
-#endif
 
-#ifdef CONFIG_PPC_DCR_MMIO
-#include <asm/dcr-mmio.h>
-#endif
-
-
-/* Indirection layer for providing both NATIVE and MMIO support. */
-
-#if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO)
-
-#include <asm/dcr-generic.h>
-
-#define DCR_MAP_OK(host)	dcr_map_ok_generic(host)
-#define dcr_map(dev, dcr_n, dcr_c) dcr_map_generic(dev, dcr_n, dcr_c)
-#define dcr_unmap(host, dcr_c) dcr_unmap_generic(host, dcr_c)
-#define dcr_read(host, dcr_n) dcr_read_generic(host, dcr_n)
-#define dcr_write(host, dcr_n, value) dcr_write_generic(host, dcr_n, value)
-
-#else
-
-#ifdef CONFIG_PPC_DCR_NATIVE
 typedef dcr_host_native_t dcr_host_t;
 #define DCR_MAP_OK(host)	dcr_map_ok_native(host)
 #define dcr_map(dev, dcr_n, dcr_c) dcr_map_native(dev, dcr_n, dcr_c)
 #define dcr_unmap(host, dcr_c) dcr_unmap_native(host, dcr_c)
 #define dcr_read(host, dcr_n) dcr_read_native(host, dcr_n)
 #define dcr_write(host, dcr_n, value) dcr_write_native(host, dcr_n, value)
-#else
-typedef dcr_host_mmio_t dcr_host_t;
-#define DCR_MAP_OK(host)	dcr_map_ok_mmio(host)
-#define dcr_map(dev, dcr_n, dcr_c) dcr_map_mmio(dev, dcr_n, dcr_c)
-#define dcr_unmap(host, dcr_c) dcr_unmap_mmio(host, dcr_c)
-#define dcr_read(host, dcr_n) dcr_read_mmio(host, dcr_n)
-#define dcr_write(host, dcr_n, value) dcr_write_mmio(host, dcr_n, value)
-#endif
-
-#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */
 
 /*
  * additional helpers to read the DCR * base from the device-tree

arch/powerpc/include/asm/hvcall.h

···
 #define H_SCM_FLUSH		0x44C
 #define H_GET_ENERGY_SCALE_INFO	0x450
 #define H_PKS_SIGNED_UPDATE	0x454
+#define H_HTM                   0x458
 #define H_WATCHDOG		0x45C
 #define H_GUEST_GET_CAPABILITIES 0x460
 #define H_GUEST_SET_CAPABILITIES 0x464
···
 #define H_GUEST_CAP_POWER10	(1UL<<(63-2))
 #define H_GUEST_CAP_POWER11	(1UL<<(63-3))
 #define H_GUEST_CAP_BITMAP2	(1UL<<(63-63))
+
+/*
+ * Defines for H_HTM - Macros for hardware trace macro (HTM) function.
+ */
+#define H_HTM_FLAGS_HARDWARE_TARGET    (1ul << 63)
+#define H_HTM_FLAGS_LOGICAL_TARGET     (1ul << 62)
+#define H_HTM_FLAGS_PROCID_TARGET      (1ul << 61)
+#define H_HTM_FLAGS_NOWRAP             (1ul << 60)
+
+#define H_HTM_OP_SHIFT                 (63-15)
+#define H_HTM_OP(x)                    ((unsigned long)(x)<<H_HTM_OP_SHIFT)
+#define H_HTM_OP_CAPABILITIES          0x01
+#define H_HTM_OP_STATUS                        0x02
+#define H_HTM_OP_SETUP                 0x03
+#define H_HTM_OP_CONFIGURE             0x04
+#define H_HTM_OP_START                 0x05
+#define H_HTM_OP_STOP                  0x06
+#define H_HTM_OP_DECONFIGURE           0x07
+#define H_HTM_OP_DUMP_DETAILS          0x08
+#define H_HTM_OP_DUMP_DATA             0x09
+#define H_HTM_OP_DUMP_SYSMEM_CONF      0x0a
+#define H_HTM_OP_DUMP_SYSPROC_CONF     0x0b
+
+#define H_HTM_TYPE_SHIFT               (63-31)
+#define H_HTM_TYPE(x)                  ((unsigned long)(x)<<H_HTM_TYPE_SHIFT)
+#define H_HTM_TYPE_NEST                        0x01
+#define H_HTM_TYPE_CORE                        0x02
+#define H_HTM_TYPE_LLAT                        0x03
+#define H_HTM_TYPE_GLOBAL              0xff
+
+#define H_HTM_TARGET_NODE_INDEX(x)             ((unsigned long)(x)<<(63-15))
+#define H_HTM_TARGET_NODAL_CHIP_INDEX(x)       ((unsigned long)(x)<<(63-31))
+#define H_HTM_TARGET_CORE_INDEX_ON_CHIP(x)     ((unsigned long)(x)<<(63-47))
 
 #ifndef __ASSEMBLY__
 #include <linux/types.h>

arch/powerpc/include/asm/io-defs.h

···
 /* SPDX-License-Identifier: GPL-2.0 */
 /* This file is meant to be include multiple times by other headers */
-/* last 2 argments are used by platforms/cell/io-workarounds.[ch] */
 
-DEF_PCI_AC_RET(readb, u8, (const PCI_IO_ADDR addr), (addr), mem, addr)
-DEF_PCI_AC_RET(readw, u16, (const PCI_IO_ADDR addr), (addr), mem, addr)
-DEF_PCI_AC_RET(readl, u32, (const PCI_IO_ADDR addr), (addr), mem, addr)
-DEF_PCI_AC_RET(readw_be, u16, (const PCI_IO_ADDR addr), (addr), mem, addr)
-DEF_PCI_AC_RET(readl_be, u32, (const PCI_IO_ADDR addr), (addr), mem, addr)
-DEF_PCI_AC_NORET(writeb, (u8 val, PCI_IO_ADDR addr), (val, addr), mem, addr)
-DEF_PCI_AC_NORET(writew, (u16 val, PCI_IO_ADDR addr), (val, addr), mem, addr)
-DEF_PCI_AC_NORET(writel, (u32 val, PCI_IO_ADDR addr), (val, addr), mem, addr)
-DEF_PCI_AC_NORET(writew_be, (u16 val, PCI_IO_ADDR addr), (val, addr), mem, addr)
-DEF_PCI_AC_NORET(writel_be, (u32 val, PCI_IO_ADDR addr), (val, addr), mem, addr)
-
-#ifdef __powerpc64__
-DEF_PCI_AC_RET(readq, u64, (const PCI_IO_ADDR addr), (addr), mem, addr)
-DEF_PCI_AC_RET(readq_be, u64, (const PCI_IO_ADDR addr), (addr), mem, addr)
-DEF_PCI_AC_NORET(writeq, (u64 val, PCI_IO_ADDR addr), (val, addr), mem, addr)
-DEF_PCI_AC_NORET(writeq_be, (u64 val, PCI_IO_ADDR addr), (val, addr), mem, addr)
-#endif /* __powerpc64__ */
-
-DEF_PCI_AC_RET(inb, u8, (unsigned long port), (port), pio, port)
-DEF_PCI_AC_RET(inw, u16, (unsigned long port), (port), pio, port)
-DEF_PCI_AC_RET(inl, u32, (unsigned long port), (port), pio, port)
-DEF_PCI_AC_NORET(outb, (u8 val, unsigned long port), (val, port), pio, port)
-DEF_PCI_AC_NORET(outw, (u16 val, unsigned long port), (val, port), pio, port)
-DEF_PCI_AC_NORET(outl, (u32 val, unsigned long port), (val, port), pio, port)
-
-DEF_PCI_AC_NORET(readsb, (const PCI_IO_ADDR a, void *b, unsigned long c),
-		 (a, b, c), mem, a)
-DEF_PCI_AC_NORET(readsw, (const PCI_IO_ADDR a, void *b, unsigned long c),
-		 (a, b, c), mem, a)
-DEF_PCI_AC_NORET(readsl, (const PCI_IO_ADDR a, void *b, unsigned long c),
-		 (a, b, c), mem, a)
-DEF_PCI_AC_NORET(writesb, (PCI_IO_ADDR a, const void *b, unsigned long c),
-		 (a, b, c), mem, a)
-DEF_PCI_AC_NORET(writesw, (PCI_IO_ADDR a, const void *b, unsigned long c),
-		 (a, b, c), mem, a)
-DEF_PCI_AC_NORET(writesl, (PCI_IO_ADDR a, const void *b, unsigned long c),
-		 (a, b, c), mem, a)
-
-DEF_PCI_AC_NORET(insb, (unsigned long p, void *b, unsigned long c),
-		 (p, b, c), pio, p)
-DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c),
-		 (p, b, c), pio, p)
-DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c),
-		 (p, b, c), pio, p)
-DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c),
-		 (p, b, c), pio, p)
-DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c),
-		 (p, b, c), pio, p)
-DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c),
-		 (p, b, c), pio, p)
-
-DEF_PCI_AC_NORET(memset_io, (PCI_IO_ADDR a, int c, unsigned long n),
-		 (a, c, n), mem, a)
-DEF_PCI_AC_NORET(memcpy_fromio, (void *d, const PCI_IO_ADDR s, unsigned long n),
-		 (d, s, n), mem, s)
-DEF_PCI_AC_NORET(memcpy_toio, (PCI_IO_ADDR d, const void *s, unsigned long n),
-		 (d, s, n), mem, d)
+DEF_PCI_AC_RET(inb, u8, (unsigned long port), (port))
+DEF_PCI_AC_RET(inw, u16, (unsigned long port), (port))
+DEF_PCI_AC_RET(inl, u32, (unsigned long port), (port))
+DEF_PCI_AC_NORET(outb, (u8 val, unsigned long port), (val, port))
+DEF_PCI_AC_NORET(outw, (u16 val, unsigned long port), (val, port))
+DEF_PCI_AC_NORET(outl, (u32 val, unsigned long port), (val, port))
+DEF_PCI_AC_NORET(insb, (unsigned long p, void *b, unsigned long c), (p, b, c))
+DEF_PCI_AC_NORET(insw, (unsigned long p, void *b, unsigned long c), (p, b, c))
+DEF_PCI_AC_NORET(insl, (unsigned long p, void *b, unsigned long c), (p, b, c))
+DEF_PCI_AC_NORET(outsb, (unsigned long p, const void *b, unsigned long c), (p, b, c))
+DEF_PCI_AC_NORET(outsw, (unsigned long p, const void *b, unsigned long c), (p, b, c))
+DEF_PCI_AC_NORET(outsl, (unsigned long p, const void *b, unsigned long c), (p, b, c))

arch/powerpc/include/asm/io-workarounds.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Support PCI IO workaround
- *
- * (C) Copyright 2007-2008 TOSHIBA CORPORATION
- */
-
-#ifndef _IO_WORKAROUNDS_H
-#define _IO_WORKAROUNDS_H
-
-#ifdef CONFIG_PPC_IO_WORKAROUNDS
-#include <linux/io.h>
-#include <asm/pci-bridge.h>
-
-/* Bus info */
-struct iowa_bus {
-	struct pci_controller *phb;
-	struct ppc_pci_io *ops;
-	void   *private;
-};
-
-void iowa_register_bus(struct pci_controller *, struct ppc_pci_io *,
-		       int (*)(struct iowa_bus *, void *), void *);
-struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR);
-struct iowa_bus *iowa_pio_find_bus(unsigned long);
-
-extern struct ppc_pci_io spiderpci_ops;
-extern int spiderpci_iowa_init(struct iowa_bus *, void *);
-
-#define SPIDER_PCI_REG_BASE		0xd000
-#define SPIDER_PCI_REG_SIZE		0x1000
-#define SPIDER_PCI_VCI_CNTL_STAT	0x0110
-#define SPIDER_PCI_DUMMY_READ		0x0810
-#define SPIDER_PCI_DUMMY_READ_BASE	0x0814
-
-#endif
-
-#if defined(CONFIG_PPC_IO_WORKAROUNDS) && defined(CONFIG_PPC_INDIRECT_MMIO)
-extern bool io_workaround_inited;
-
-static inline bool iowa_is_active(void)
-{
-	return unlikely(io_workaround_inited);
-}
-#else
-static inline bool iowa_is_active(void)
-{
-	return false;
-}
-#endif
-
-void __iomem *iowa_ioremap(phys_addr_t addr, unsigned long size,
-			   pgprot_t prot, void *caller);
-
-#endif /* _IO_WORKAROUNDS_H */

arch/powerpc/include/asm/io.h

···
 extern bool isa_io_special;
 
 #ifdef CONFIG_PPC32
-#if defined(CONFIG_PPC_INDIRECT_PIO) || defined(CONFIG_PPC_INDIRECT_MMIO)
-#error CONFIG_PPC_INDIRECT_{PIO,MMIO} are not yet supported on 32 bits
+#ifdef CONFIG_PPC_INDIRECT_PIO
+#error CONFIG_PPC_INDIRECT_PIO is not yet supported on 32 bits
 #endif
 #endif
 
···
  *
  *	in_8, in_le16, in_be16, in_le32, in_be32, in_le64, in_be64
  *	out_8, out_le16, out_be16, out_le32, out_be32, out_le64, out_be64
- *	_insb, _insw_ns, _insl_ns, _outsb, _outsw_ns, _outsl_ns
+ *	_insb, _insw, _insl, _outsb, _outsw, _outsl
  *
  * Those operate directly on a kernel virtual address. Note that the prototype
  * for the out_* accessors has the arguments in opposite order from the usual
  * linux PCI accessors. Unlike those, they take the address first and the value
  * next.
- *
- * Note: I might drop the _ns suffix on the stream operations soon as it is
- * simply normal for stream operations to not swap in the first place.
- *
  */
 
 /* -mprefixed can generate offsets beyond range, fall back hack */
···
  */
 extern void _insb(const volatile u8 __iomem *addr, void *buf, long count);
 extern void _outsb(volatile u8 __iomem *addr,const void *buf,long count);
-extern void _insw_ns(const volatile u16 __iomem *addr, void *buf, long count);
-extern void _outsw_ns(volatile u16 __iomem *addr, const void *buf, long count);
-extern void _insl_ns(const volatile u32 __iomem *addr, void *buf, long count);
-extern void _outsl_ns(volatile u32 __iomem *addr, const void *buf, long count);
-
-/* The _ns naming is historical and will be removed. For now, just #define
- * the non _ns equivalent names
- */
-#define _insw	_insw_ns
-#define _insl	_insl_ns
-#define _outsw	_outsw_ns
-#define _outsl	_outsl_ns
-
+extern void _insw(const volatile u16 __iomem *addr, void *buf, long count);
+extern void _outsw(volatile u16 __iomem *addr, const void *buf, long count);
+extern void _insl(const volatile u32 __iomem *addr, void *buf, long count);
+extern void _outsl(volatile u32 __iomem *addr, const void *buf, long count);
 
 /*
  * memset_io, memcpy_toio, memcpy_fromio base implementations are out of line
···
  * for PowerPC is as close as possible to the x86 version of these, and thus
  * provides fairly heavy weight barriers for the non-raw versions
  *
- * In addition, they support a hook mechanism when CONFIG_PPC_INDIRECT_MMIO
- * or CONFIG_PPC_INDIRECT_PIO are set allowing the platform to provide its
- * own implementation of some or all of the accessors.
+ * In addition, they support a hook mechanism when CONFIG_PPC_INDIRECT_PIO
+ * is set allowing the platform to provide its own implementation of some
+ * of the accessors.
  */
 
 /*
···
 #include <asm/eeh.h>
 #endif
 
-/* Shortcut to the MMIO argument pointer */
-#define PCI_IO_ADDR	volatile void __iomem *
-
-/* Indirect IO address tokens:
- *
- * When CONFIG_PPC_INDIRECT_MMIO is set, the platform can provide hooks
- * on all MMIOs. (Note that this is all 64 bits only for now)
- *
- * To help platforms who may need to differentiate MMIO addresses in
- * their hooks, a bitfield is reserved for use by the platform near the
- * top of MMIO addresses (not PIO, those have to cope the hard way).
- *
- * The highest address in the kernel virtual space are:
- *
- *  d0003fffffffffff	# with Hash MMU
- *  c00fffffffffffff	# with Radix MMU
- *
- * The top 4 bits are reserved as the region ID on hash, leaving us 8 bits
- * that can be used for the field.
- *
- * The direct IO mapping operations will then mask off those bits
- * before doing the actual access, though that only happen when
- * CONFIG_PPC_INDIRECT_MMIO is set, thus be careful when you use that
- * mechanism
- *
- * For PIO, there is a separate CONFIG_PPC_INDIRECT_PIO which makes
- * all PIO functions call through a hook.
- */
-
-#ifdef CONFIG_PPC_INDIRECT_MMIO
-#define PCI_IO_IND_TOKEN_SHIFT	52
-#define PCI_IO_IND_TOKEN_MASK	(0xfful << PCI_IO_IND_TOKEN_SHIFT)
-#define PCI_FIX_ADDR(addr)						\
-	((PCI_IO_ADDR)(((unsigned long)(addr)) & ~PCI_IO_IND_TOKEN_MASK))
-#define PCI_GET_ADDR_TOKEN(addr)					\
-	(((unsigned long)(addr) & PCI_IO_IND_TOKEN_MASK) >> 		\
-		PCI_IO_IND_TOKEN_SHIFT)
-#define PCI_SET_ADDR_TOKEN(addr, token) 				\
-do {									\
-	unsigned long __a = (unsigned long)(addr);			\
-	__a &= ~PCI_IO_IND_TOKEN_MASK;					\
-	__a |= ((unsigned long)(token)) << PCI_IO_IND_TOKEN_SHIFT;	\
-	(addr) = (void __iomem *)__a;					\
-} while(0)
-#else
-#define PCI_FIX_ADDR(addr) (addr)
-#endif
-
-
-/*
- * Non ordered and non-swapping "raw" accessors
- */
-
-static inline unsigned char __raw_readb(const volatile void __iomem *addr)
-{
-	return *(volatile unsigned char __force *)PCI_FIX_ADDR(addr);
-}
-#define __raw_readb __raw_readb
-
-static inline unsigned short __raw_readw(const volatile void __iomem *addr)
-{
-	return *(volatile unsigned short __force *)PCI_FIX_ADDR(addr);
-}
-#define __raw_readw __raw_readw
-
-static inline unsigned int __raw_readl(const volatile void __iomem *addr)
-{
-	return *(volatile unsigned int __force *)PCI_FIX_ADDR(addr);
-}
-#define __raw_readl __raw_readl
-
-static inline void __raw_writeb(unsigned char v, volatile void __iomem *addr)
-{
-	*(volatile unsigned char __force *)PCI_FIX_ADDR(addr) = v;
-}
-#define __raw_writeb __raw_writeb
-
-static inline void __raw_writew(unsigned short v, volatile void __iomem *addr)
-{
-	*(volatile unsigned short __force *)PCI_FIX_ADDR(addr) = v;
-}
-#define __raw_writew __raw_writew
-
-static inline void __raw_writel(unsigned int v, volatile void __iomem *addr)
-{
-	*(volatile unsigned int __force *)PCI_FIX_ADDR(addr) = v;
-}
-#define __raw_writel __raw_writel
+#define _IO_PORT(port)	((volatile void __iomem *)(_IO_BASE + (port)))
 
 #ifdef __powerpc64__
-static inline unsigned long __raw_readq(const volatile void __iomem *addr)
-{
-	return *(volatile unsigned long __force *)PCI_FIX_ADDR(addr);
-}
-#define __raw_readq __raw_readq
-
-static inline void __raw_writeq(unsigned long v, volatile void __iomem *addr)
-{
-	*(volatile unsigned long __force *)PCI_FIX_ADDR(addr) = v;
-}
-#define __raw_writeq __raw_writeq
-
-static inline void __raw_writeq_be(unsigned long v, volatile void __iomem *addr)
-{
-	__raw_writeq((__force unsigned long)cpu_to_be64(v), addr);
-}
-#define __raw_writeq_be __raw_writeq_be
-
 /*
- * Real mode versions of the above. Those instructions are only supposed
+ * Real mode versions of raw accessors. Those instructions are only supposed
  * to be used in hypervisor real mode as per the architecture spec.
  */
 static inline void __raw_rm_writeb(u8 val, volatile void __iomem *paddr)
···
  * possible to hook directly at the toplevel PIO operation if they have to
  * be handled differently
  */
-#define __do_writeb(val, addr)	out_8(PCI_FIX_ADDR(addr), val)
-#define __do_writew(val, addr)	out_le16(PCI_FIX_ADDR(addr), val)
-#define __do_writel(val, addr)	out_le32(PCI_FIX_ADDR(addr), val)
-#define __do_writeq(val, addr)	out_le64(PCI_FIX_ADDR(addr), val)
-#define __do_writew_be(val, addr) out_be16(PCI_FIX_ADDR(addr), val)
-#define __do_writel_be(val, addr) out_be32(PCI_FIX_ADDR(addr), val)
-#define __do_writeq_be(val, addr) out_be64(PCI_FIX_ADDR(addr), val)
 
 #ifdef CONFIG_EEH
-#define __do_readb(addr)	eeh_readb(PCI_FIX_ADDR(addr))
-#define __do_readw(addr)	eeh_readw(PCI_FIX_ADDR(addr))
-#define __do_readl(addr)	eeh_readl(PCI_FIX_ADDR(addr))
-#define __do_readq(addr)	eeh_readq(PCI_FIX_ADDR(addr))
-#define __do_readw_be(addr)	eeh_readw_be(PCI_FIX_ADDR(addr))
-#define __do_readl_be(addr)	eeh_readl_be(PCI_FIX_ADDR(addr))
-#define __do_readq_be(addr)	eeh_readq_be(PCI_FIX_ADDR(addr))
+#define __do_readb(addr)	eeh_readb(addr)
+#define __do_readw(addr)	eeh_readw(addr)
+#define __do_readl(addr)	eeh_readl(addr)
+#define __do_readq(addr)	eeh_readq(addr)
+#define __do_readw_be(addr)	eeh_readw_be(addr)
+#define __do_readl_be(addr)	eeh_readl_be(addr)
+#define __do_readq_be(addr)	eeh_readq_be(addr)
 #else /* CONFIG_EEH */
-#define __do_readb(addr)	in_8(PCI_FIX_ADDR(addr))
-#define __do_readw(addr)	in_le16(PCI_FIX_ADDR(addr))
-#define __do_readl(addr)	in_le32(PCI_FIX_ADDR(addr))
-#define __do_readq(addr)	in_le64(PCI_FIX_ADDR(addr))
-#define __do_readw_be(addr)	in_be16(PCI_FIX_ADDR(addr))
-#define __do_readl_be(addr)	in_be32(PCI_FIX_ADDR(addr))
-#define __do_readq_be(addr)	in_be64(PCI_FIX_ADDR(addr))
+#define __do_readb(addr)	in_8(addr)
+#define __do_readw(addr)	in_le16(addr)
+#define __do_readl(addr)	in_le32(addr)
+#define __do_readq(addr)	in_le64(addr)
+#define __do_readw_be(addr)	in_be16(addr)
+#define __do_readl_be(addr)	in_be32(addr)
+#define __do_readq_be(addr)	in_be64(addr)
 #endif /* !defined(CONFIG_EEH) */
 
 #ifdef CONFIG_PPC32
···
 #define __do_inw(port)		_rec_inw(port)
 #define __do_inl(port)		_rec_inl(port)
 #else /* CONFIG_PPC32 */
-#define __do_outb(val, port)	writeb(val,(PCI_IO_ADDR)(_IO_BASE+port));
-#define __do_outw(val, port)	writew(val,(PCI_IO_ADDR)(_IO_BASE+port));
-#define __do_outl(val, port)	writel(val,(PCI_IO_ADDR)(_IO_BASE+port));
-#define __do_inb(port)		readb((PCI_IO_ADDR)(_IO_BASE + port));
-#define __do_inw(port)		readw((PCI_IO_ADDR)(_IO_BASE + port));
-#define __do_inl(port)		readl((PCI_IO_ADDR)(_IO_BASE + port));
+#define __do_outb(val, port)	writeb(val,_IO_PORT(port));
+#define __do_outw(val, port)	writew(val,_IO_PORT(port));
+#define __do_outl(val, port)	writel(val,_IO_PORT(port));
+#define __do_inb(port)		readb(_IO_PORT(port));
+#define __do_inw(port)		readw(_IO_PORT(port));
+#define __do_inl(port)		readl(_IO_PORT(port));
 #endif /* !CONFIG_PPC32 */
 
 #ifdef CONFIG_EEH
-#define __do_readsb(a, b, n)	eeh_readsb(PCI_FIX_ADDR(a), (b), (n))
-#define __do_readsw(a, b, n)	eeh_readsw(PCI_FIX_ADDR(a), (b), (n))
-#define __do_readsl(a, b, n)	eeh_readsl(PCI_FIX_ADDR(a), (b), (n))
+#define __do_readsb(a, b, n)	eeh_readsb(a, (b), (n))
+#define __do_readsw(a, b, n)	eeh_readsw(a, (b), (n))
+#define __do_readsl(a, b, n)	eeh_readsl(a, (b), (n))
 #else /* CONFIG_EEH */
-#define __do_readsb(a, b, n)	_insb(PCI_FIX_ADDR(a), (b), (n))
-#define __do_readsw(a, b, n)	_insw(PCI_FIX_ADDR(a), (b), (n))
-#define __do_readsl(a, b, n)	_insl(PCI_FIX_ADDR(a), (b), (n))
+#define __do_readsb(a, b, n)	_insb(a, (b), (n))
+#define __do_readsw(a, b, n)	_insw(a, (b), (n))
+#define __do_readsl(a, b, n)	_insl(a, (b), (n))
 #endif /* !CONFIG_EEH */
-#define __do_writesb(a, b, n)	_outsb(PCI_FIX_ADDR(a),(b),(n))
-#define __do_writesw(a, b, n)	_outsw(PCI_FIX_ADDR(a),(b),(n))
-#define __do_writesl(a, b, n)	_outsl(PCI_FIX_ADDR(a),(b),(n))
+#define __do_writesb(a, b, n)	_outsb(a, (b), (n))
+#define __do_writesw(a, b, n)	_outsw(a, (b), (n))
+#define __do_writesl(a, b, n)	_outsl(a, (b), (n))
 
-#define __do_insb(p, b, n)	readsb((PCI_IO_ADDR)(_IO_BASE+(p)), (b), (n))
-#define __do_insw(p, b, n)	readsw((PCI_IO_ADDR)(_IO_BASE+(p)), (b), (n))
-#define __do_insl(p, b, n)	readsl((PCI_IO_ADDR)(_IO_BASE+(p)), (b), (n))
-#define __do_outsb(p, b, n)	writesb((PCI_IO_ADDR)(_IO_BASE+(p)),(b),(n))
-#define __do_outsw(p, b, n)	writesw((PCI_IO_ADDR)(_IO_BASE+(p)),(b),(n))
-#define __do_outsl(p, b, n)	writesl((PCI_IO_ADDR)(_IO_BASE+(p)),(b),(n))
-
-#define __do_memset_io(addr, c, n)	\
-				_memset_io(PCI_FIX_ADDR(addr), c, n)
-#define __do_memcpy_toio(dst, src, n)	\
-				_memcpy_toio(PCI_FIX_ADDR(dst), src, n)
+#define __do_insb(p, b, n)	readsb(_IO_PORT(p), (b), (n))
+#define __do_insw(p, b, n)	readsw(_IO_PORT(p), (b), (n))
+#define __do_insl(p, b, n)	readsl(_IO_PORT(p), (b), (n))
+#define __do_outsb(p, b, n)	writesb(_IO_PORT(p),(b),(n))
+#define __do_outsw(p, b, n)	writesw(_IO_PORT(p),(b),(n))
+#define __do_outsl(p, b, n)	writesl(_IO_PORT(p),(b),(n))
 
 #ifdef CONFIG_EEH
 #define __do_memcpy_fromio(dst, src, n)	\
-				eeh_memcpy_fromio(dst, PCI_FIX_ADDR(src), n)
+				eeh_memcpy_fromio(dst, src, n)
 #else /* CONFIG_EEH */
 #define __do_memcpy_fromio(dst, src, n)	\
-				_memcpy_fromio(dst,PCI_FIX_ADDR(src),n)
+				_memcpy_fromio(dst, src, n)
 #endif /* !CONFIG_EEH */
 
-#ifdef CONFIG_PPC_INDIRECT_PIO
-#define DEF_PCI_HOOK_pio(x)	x
-#else
-#define DEF_PCI_HOOK_pio(x)	NULL
-#endif
+static inline u8 readb(const volatile void __iomem *addr)
+{
+	return __do_readb(addr);
+}
+#define readb readb
 
-#ifdef CONFIG_PPC_INDIRECT_MMIO
-#define DEF_PCI_HOOK_mem(x)	x
+static inline u16 readw(const volatile void __iomem *addr)
+{
+	return __do_readw(addr);
+}
+#define readw readw
+
+static inline u32 readl(const volatile void __iomem *addr)
+{
+	return __do_readl(addr);
+}
+#define readl readl
+
+static inline u16 readw_be(const volatile void __iomem *addr)
+{
+	return __do_readw_be(addr);
+}
+
+static inline u32 readl_be(const volatile void __iomem *addr)
+{
+	return __do_readl_be(addr);
+}
+
+static inline void writeb(u8 val, volatile void __iomem *addr)
+{
+	out_8(addr, val);
+}
+#define writeb writeb
+
+static inline void writew(u16 val, volatile void __iomem *addr)
+{
+	out_le16(addr, val);
+}
+#define writew writew
+
+static inline void writel(u32 val, volatile void __iomem *addr)
+{
+	out_le32(addr, val);
+}
+#define writel writel
+
+static inline void writew_be(u16 val, volatile void __iomem *addr)
+{
+	out_be16(addr, val);
+}
+
+static inline void writel_be(u32 val, volatile void __iomem *addr)
+{
+	out_be32(addr, val);
+}
+
+static inline void readsb(const volatile void __iomem *a, void *b, unsigned long c)
+{
+	__do_readsb(a, b, c);
+}
+#define readsb readsb
+
+static inline void readsw(const volatile void __iomem *a, void *b, unsigned long c)
+{
+	__do_readsw(a, b, c);
+}
+#define readsw readsw
+
+static inline void readsl(const volatile void __iomem *a, void *b, unsigned long c)
+{
+	__do_readsl(a, b, c);
+}
+#define readsl readsl
+
+static inline void writesb(volatile void __iomem *a, const void *b, unsigned long c)
+{
+	__do_writesb(a, b, c);
+}
+#define writesb writesb
+
+static inline void writesw(volatile void __iomem *a, const void *b, unsigned long c)
+{
+	__do_writesw(a, b, c);
+}
+#define writesw writesw
+
+static inline void writesl(volatile void __iomem *a, const void *b, unsigned long c)
+{
+	__do_writesl(a, b, c);
+}
+#define writesl writesl
+
+static inline void memset_io(volatile void __iomem *a, int c, unsigned long n)
+{
+	_memset_io(a, c, n);
+}
+#define memset_io memset_io
+
+static inline void memcpy_fromio(void *d, const volatile void __iomem *s, unsigned long n)
+{
+	__do_memcpy_fromio(d, s, n);
+}
+#define memcpy_fromio memcpy_fromio
+
+static inline void memcpy_toio(volatile void __iomem *d, const void *s, unsigned long n)
+{
+	_memcpy_toio(d, s, n);
+}
+#define memcpy_toio memcpy_toio
+
+#ifdef __powerpc64__
+static inline u64 readq(const volatile void __iomem *addr)
+{
+	return __do_readq(addr);
+}
+
+static inline u64 readq_be(const volatile void __iomem *addr)
+{
+	return __do_readq_be(addr);
+}
+
+static inline void writeq(u64 val, volatile void __iomem *addr)
+{
+	out_le64(addr, val);
+}
+
+static inline void writeq_be(u64 val, volatile void __iomem *addr)
+{
+	out_be64(addr, val);
+}
+#endif /* __powerpc64__ */
+
+#ifdef CONFIG_PPC_INDIRECT_PIO
+#define DEF_PCI_HOOK(x)	x
 #else
-#define DEF_PCI_HOOK_mem(x)	NULL
+#define DEF_PCI_HOOK(x)	NULL
 #endif
 
 /* Structure containing all the hooks */
 extern struct ppc_pci_io {
 
-#define DEF_PCI_AC_RET(name, ret, at, al, space, aa)	ret (*name) at;
-#define DEF_PCI_AC_NORET(name, at, al, space, aa)	void (*name) at;
+#define DEF_PCI_AC_RET(name, ret, at, al)	ret (*name) at;
+#define DEF_PCI_AC_NORET(name, at, al)		void (*name) at;
 
 #include <asm/io-defs.h>
 
···
 } ppc_pci_io;
 
 /* The inline wrappers */
-#define DEF_PCI_AC_RET(name, ret, at, al, space, aa)		\
+#define DEF_PCI_AC_RET(name, ret, at, al)			\
 static inline ret name at					\
 {								\
-	if (DEF_PCI_HOOK_##space(ppc_pci_io.name) != NULL)	\
+	if (DEF_PCI_HOOK(ppc_pci_io.name) != NULL)		\
 		return ppc_pci_io.name al;			\
 	return __do_##name al;					\
 }
 
-#define DEF_PCI_AC_NORET(name, at, al, space, aa)		\
+#define DEF_PCI_AC_NORET(name, at, al)		\
 static inline void name at					\
 {								\
-	if (DEF_PCI_HOOK_##space(ppc_pci_io.name) != NULL)		\
+	if (DEF_PCI_HOOK(ppc_pci_io.name) != NULL)		\
 		ppc_pci_io.name al;				\
 	else							\
 		__do_##name al;					\
···
 #undef DEF_PCI_AC_RET
 #undef DEF_PCI_AC_NORET
 
-/* Some drivers check for the presence of readq & writeq with
- * a #ifdef, so we make them happy here.
- */
-#define readb readb
-#define readw readw
-#define readl readl
-#define writeb writeb
-#define writew writew
-#define writel writel
-#define readsb readsb
-#define readsw readsw
-#define readsl readsl
-#define writesb writesb
-#define writesw writesw
-#define writesl writesl
+// Signal to asm-generic/io.h that we have implemented these.
 #define inb inb
 #define inw inw
 #define inl inl
···
 #define readq	readq
 #define writeq	writeq
 #endif
-#define memset_io memset_io
-#define memcpy_fromio memcpy_fromio
-#define memcpy_toio memcpy_toio
 
 /*
  * We don't do relaxed operations yet, at least not with this semantic
···
 #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
 
 #include <asm-generic/io.h>
+
+#ifdef __powerpc64__
+static inline void __raw_writeq_be(unsigned long v, volatile void __iomem *addr)
+{
+	__raw_writeq((__force unsigned long)cpu_to_be64(v), addr);
+}
+#define __raw_writeq_be __raw_writeq_be
+#endif // __powerpc64__
 
 #endif /* __KERNEL__ */
 

arch/powerpc/include/asm/iommu.h

···
 extern enum dma_data_direction iommu_tce_direction(unsigned long tce);
 extern unsigned long iommu_direction_to_tce_perm(enum dma_data_direction dir);
 
-#ifdef CONFIG_PPC_CELL_NATIVE
-extern bool iommu_fixed_is_weak;
-#else
-#define iommu_fixed_is_weak false
-#endif
-
 extern const struct dma_map_ops dma_iommu_ops;
 
 #endif /* __KERNEL__ */

arch/powerpc/include/asm/mmzone.h

···
 #ifdef CONFIG_MEMORY_HOTPLUG
 extern unsigned long max_pfn;
 u64 memory_hotplug_max(void);
+u64 hot_add_drconf_memory_max(void);
 #else
 #define memory_hotplug_max() memblock_end_of_DRAM()
 #endif

arch/powerpc/include/asm/plpar_wrappers.h

···
 	return vpa_call(H_VPA_REG_DTL, cpu, vpa);
 }
 
+static inline long htm_call(unsigned long flags, unsigned long target,
+               unsigned long operation, unsigned long param1,
+               unsigned long param2, unsigned long param3)
+{
+       return plpar_hcall_norets(H_HTM, flags, target, operation,
+                                 param1, param2, param3);
+}
+
+static inline long htm_get_dump_hardware(unsigned long nodeindex,
+               unsigned long nodalchipindex, unsigned long coreindexonchip,
+               unsigned long type, unsigned long addr, unsigned long size,
+               unsigned long offset)
+{
+       return htm_call(H_HTM_FLAGS_HARDWARE_TARGET,
+                       H_HTM_TARGET_NODE_INDEX(nodeindex) |
+                       H_HTM_TARGET_NODAL_CHIP_INDEX(nodalchipindex) |
+                       H_HTM_TARGET_CORE_INDEX_ON_CHIP(coreindexonchip),
+                       H_HTM_OP(H_HTM_OP_DUMP_DATA) | H_HTM_TYPE(type),
+                       addr, size, offset);
+}
+
 extern void vpa_init(int cpu);
 
 static inline long plpar_pte_enter(unsigned long flags,

arch/powerpc/include/asm/pmi.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-#ifndef _POWERPC_PMI_H
-#define _POWERPC_PMI_H
-
-/*
- * Definitions for talking with PMI device on PowerPC
- *
- * PMI (Platform Management Interrupt) is a way to communicate
- * with the BMC (Baseboard Management Controller) via interrupts.
- * Unlike IPMI it is bidirectional and has a low latency.
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#ifdef __KERNEL__
-
-#define PMI_TYPE_FREQ_CHANGE	0x01
-#define PMI_TYPE_POWER_BUTTON	0x02
-#define PMI_READ_TYPE		0
-#define PMI_READ_DATA0		1
-#define PMI_READ_DATA1		2
-#define PMI_READ_DATA2		3
-#define PMI_WRITE_TYPE		4
-#define PMI_WRITE_DATA0		5
-#define PMI_WRITE_DATA1		6
-#define PMI_WRITE_DATA2		7
-
-#define PMI_ACK			0x80
-
-#define PMI_TIMEOUT		100
-
-typedef struct {
-	u8	type;
-	u8	data0;
-	u8	data1;
-	u8	data2;
-} pmi_message_t;
-
-struct pmi_handler {
-	struct list_head node;
-	u8 type;
-	void (*handle_pmi_message) (pmi_message_t);
-};
-
-int pmi_register_handler(struct pmi_handler *);
-void pmi_unregister_handler(struct pmi_handler *);
-
-int pmi_send_message(pmi_message_t);
-
-#endif /* __KERNEL__ */
-#endif /* _POWERPC_PMI_H */

arch/powerpc/include/asm/prom.h

···
 struct device_node;
 struct property;
 
+#define MIN_RMA			768		/* Minimum RMA (in MB) for CAS negotiation */
+
 #define OF_DT_BEGIN_NODE	0x1		/* Start of node, full name */
 #define OF_DT_END_NODE		0x2		/* End node */
 #define OF_DT_PROP		0x3		/* Property: name off, size,

arch/powerpc/include/asm/spu_priv1.h

···
  * and only intended to be used by the platform setup code.
  */
 
-extern const struct spu_priv1_ops spu_priv1_mmio_ops;
-
 extern const struct spu_management_ops spu_management_of_ops;
 
 #endif /* __KERNEL__ */

arch/powerpc/include/asm/static_call.h

···
 #define ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name)	__PPC_SCT(name, "blr")
 #define ARCH_DEFINE_STATIC_CALL_RET0_TRAMP(name)	__PPC_SCT(name, "b .+20")
 
+#define CALL_INSN_SIZE		4
+
 #endif /* _ASM_POWERPC_STATIC_CALL_H */

arch/powerpc/include/asm/time.h

···
 #define mulhdu(x, y)	mul_u64_u64_shr(x, y, 64)
 #endif
 
-extern void div128_by_32(u64 dividend_high, u64 dividend_low,
-			 unsigned divisor, struct div_result *dr);
-
 extern void secondary_cpu_time_init(void);
 extern void __init time_init(void);
 

arch/powerpc/include/asm/xics.h

···
 #ifdef CONFIG_PPC_ICP_NATIVE
 extern int icp_native_init(void);
 extern void icp_native_flush_interrupt(void);
-extern void icp_native_cause_ipi_rm(int cpu);
 #else
 static inline int icp_native_init(void) { return -ENODEV; }
 #endif

arch/powerpc/include/asm/xmon.h

···
 
 #ifdef CONFIG_XMON
 extern void xmon_setup(void);
-void __init xmon_register_spus(struct list_head *list);
 struct pt_regs;
 extern int xmon(struct pt_regs *excp);
 extern irqreturn_t xmon_irq(int, void *);
 #else
 static inline void xmon_setup(void) { }
-static inline void xmon_register_spus(struct list_head *list) { }
 #endif
 
 #if defined(CONFIG_XMON) && defined(CONFIG_SMP)

arch/powerpc/kernel/Makefile

···
 				   signal.o sysfs.o cacheinfo.o time.o \
 				   prom.o traps.o setup-common.o \
 				   udbg.o misc.o io.o misc_$(BITS).o \
-				   of_platform.o prom_parse.o firmware.o \
+				   prom_parse.o firmware.o \
 				   hw_breakpoint_constraints.o interrupt.o \
 				   kdebugfs.o stacktrace.o syscall.o
 obj-y				+= ptrace/
···
 
 obj-$(CONFIG_AUDIT)		+= audit.o
 obj64-$(CONFIG_AUDIT)		+= compat_audit.o
-
-obj-$(CONFIG_PPC_IO_WORKAROUNDS)	+= io-workarounds.o
 
 obj-y				+= trace/
 

arch/powerpc/kernel/dma-iommu.c

···
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct pci_controller *phb = pci_bus_to_host(pdev->bus);
 
-	if (iommu_fixed_is_weak || !phb->controller_ops.iommu_bypass_supported)
+	if (!phb->controller_ops.iommu_bypass_supported)
 		return false;
 	return phb->controller_ops.iommu_bypass_supported(pdev, mask);
 }

arch/powerpc/kernel/exceptions-64s.S

···
 EXC_VIRT_NONE(0x5000, 0x100)
 EXC_REAL_NONE(0x1100, 0x100)
 EXC_VIRT_NONE(0x5100, 0x100)
-
-#ifdef CONFIG_CBE_RAS
-INT_DEFINE_BEGIN(cbe_system_error)
-	IVEC=0x1200
-	IHSRR=1
-INT_DEFINE_END(cbe_system_error)
-
-EXC_REAL_BEGIN(cbe_system_error, 0x1200, 0x100)
-	GEN_INT_ENTRY cbe_system_error, virt=0
-EXC_REAL_END(cbe_system_error, 0x1200, 0x100)
-EXC_VIRT_NONE(0x5200, 0x100)
-EXC_COMMON_BEGIN(cbe_system_error_common)
-	GEN_COMMON cbe_system_error
-	addi	r3,r1,STACK_INT_FRAME_REGS
-	bl	CFUNC(cbe_system_error_exception)
-	b	interrupt_return_hsrr
-
-#else /* CONFIG_CBE_RAS */
 EXC_REAL_NONE(0x1200, 0x100)
 EXC_VIRT_NONE(0x5200, 0x100)
-#endif
 
 /**
  * Interrupt 0x1300 - Instruction Address Breakpoint Interrupt.
···
 	b	interrupt_return_hsrr
 
 
-#ifdef CONFIG_CBE_RAS
-INT_DEFINE_BEGIN(cbe_maintenance)
-	IVEC=0x1600
-	IHSRR=1
-INT_DEFINE_END(cbe_maintenance)
-
-EXC_REAL_BEGIN(cbe_maintenance, 0x1600, 0x100)
-	GEN_INT_ENTRY cbe_maintenance, virt=0
-EXC_REAL_END(cbe_maintenance, 0x1600, 0x100)
-EXC_VIRT_NONE(0x5600, 0x100)
-EXC_COMMON_BEGIN(cbe_maintenance_common)
-	GEN_COMMON cbe_maintenance
-	addi	r3,r1,STACK_INT_FRAME_REGS
-	bl	CFUNC(cbe_maintenance_exception)
-	b	interrupt_return_hsrr
-
-#else /* CONFIG_CBE_RAS */
 EXC_REAL_NONE(0x1600, 0x100)
 EXC_VIRT_NONE(0x5600, 0x100)
-#endif
 
 
 INT_DEFINE_BEGIN(altivec_assist)
···
 	b	interrupt_return_srr
 
 
-#ifdef CONFIG_CBE_RAS
-INT_DEFINE_BEGIN(cbe_thermal)
-	IVEC=0x1800
-	IHSRR=1
-INT_DEFINE_END(cbe_thermal)
-
-EXC_REAL_BEGIN(cbe_thermal, 0x1800, 0x100)
-	GEN_INT_ENTRY cbe_thermal, virt=0
-EXC_REAL_END(cbe_thermal, 0x1800, 0x100)
-EXC_VIRT_NONE(0x5800, 0x100)
-EXC_COMMON_BEGIN(cbe_thermal_common)
-	GEN_COMMON cbe_thermal
-	addi	r3,r1,STACK_INT_FRAME_REGS
-	bl	CFUNC(cbe_thermal_exception)
-	b	interrupt_return_hsrr
-
-#else /* CONFIG_CBE_RAS */
 EXC_REAL_NONE(0x1800, 0x100)
 EXC_VIRT_NONE(0x5800, 0x100)
-#endif
 
 
 #ifdef CONFIG_PPC_WATCHDOG

arch/powerpc/kernel/fadump.c

···
 #include <asm/fadump-internal.h>
 #include <asm/setup.h>
 #include <asm/interrupt.h>
+#include <asm/prom.h>
 
 /*
  * The CPU who acquired the lock to trigger the fadump crash should
···
 		range_end = memblock_end_of_DRAM();
 	} else {
 		/*
-		 * Passing additional parameters is supported for hash MMU only
-		 * if the first memory block size is 768MB or higher.
+		 * Memory range for passing additional parameters for HASH MMU
+		 * must meet the following conditions:
+		 * 1. The first memory block size must be higher than the
+		 *    minimum RMA (MIN_RMA) size. Bootloader can use memory
+		 *    upto RMA size. So it should be avoided.
+		 * 2. The range should be between MIN_RMA and RMA size (ppc64_rma_size)
+		 * 3. It must not overlap with the fadump reserved area.
 		 */
-		if (ppc64_rma_size < 0x30000000)
+		if (ppc64_rma_size < MIN_RMA*1024*1024)
 			return;
 
-		/*
-		 * 640 MB to 768 MB is not used by PFW/bootloader. So, try reserving
-		 * memory for passing additional parameters in this range to avoid
-		 * being stomped on by PFW/bootloader.
-		 */
-		range_start = 0x2A000000;
-		range_end = range_start + 0x4000000;
+		range_start = MIN_RMA * 1024 * 1024;
+		range_end = min(ppc64_rma_size, fw_dump.boot_mem_top);
 	}
 
 	fw_dump.param_area = memblock_phys_alloc_range(COMMAND_LINE_SIZE,

arch/powerpc/kernel/io-workarounds.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Support PCI IO workaround
- *
- *  Copyright (C) 2006 Benjamin Herrenschmidt <[e-mail]>
- *		       IBM, Corp.
- *  (C) Copyright 2007-2008 TOSHIBA CORPORATION
- */
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/sched/mm.h>	/* for init_mm */
-#include <linux/pgtable.h>
-
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/ppc-pci.h>
-#include <asm/io-workarounds.h>
-#include <asm/pte-walk.h>
-
-
-#define IOWA_MAX_BUS	8
-
-static struct iowa_bus iowa_busses[IOWA_MAX_BUS];
-static unsigned int iowa_bus_count;
-
-static struct iowa_bus *iowa_pci_find(unsigned long vaddr, unsigned long paddr)
-{
-	int i, j;
-	struct resource *res;
-	unsigned long vstart, vend;
-
-	for (i = 0; i < iowa_bus_count; i++) {
-		struct iowa_bus *bus = &iowa_busses[i];
-		struct pci_controller *phb = bus->phb;
-
-		if (vaddr) {
-			vstart = (unsigned long)phb->io_base_virt;
-			vend = vstart + phb->pci_io_size - 1;
-			if ((vaddr >= vstart) && (vaddr <= vend))
-				return bus;
-		}
-
-		if (paddr)
-			for (j = 0; j < 3; j++) {
-				res = &phb->mem_resources[j];
-				if (paddr >= res->start && paddr <= res->end)
-					return bus;
-			}
-	}
-
-	return NULL;
-}
-
-#ifdef CONFIG_PPC_INDIRECT_MMIO
-struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR addr)
-{
-	struct iowa_bus *bus;
-	int token;
-
-	token = PCI_GET_ADDR_TOKEN(addr);
-
-	if (token && token <= iowa_bus_count)
-		bus = &iowa_busses[token - 1];
-	else {
-		unsigned long vaddr, paddr;
-
-		vaddr = (unsigned long)PCI_FIX_ADDR(addr);
-		if (vaddr < PHB_IO_BASE || vaddr >= PHB_IO_END)
-			return NULL;
-
-		paddr = ppc_find_vmap_phys(vaddr);
-
-		bus = iowa_pci_find(vaddr, paddr);
-
-		if (bus == NULL)
-			return NULL;
-	}
-
-	return bus;
-}
-#else /* CONFIG_PPC_INDIRECT_MMIO */
-struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR addr)
-{
-	return NULL;
-}
-#endif /* !CONFIG_PPC_INDIRECT_MMIO */
-
-#ifdef CONFIG_PPC_INDIRECT_PIO
-struct iowa_bus *iowa_pio_find_bus(unsigned long port)
-{
-	unsigned long vaddr = (unsigned long)pci_io_base + port;
-	return iowa_pci_find(vaddr, 0);
-}
-#else
-struct iowa_bus *iowa_pio_find_bus(unsigned long port)
-{
-	return NULL;
-}
-#endif
-
-#define DEF_PCI_AC_RET(name, ret, at, al, space, aa)		\
-static ret iowa_##name at					\
-{								\
-	struct iowa_bus *bus;					\
-	bus = iowa_##space##_find_bus(aa);			\
-	if (bus && bus->ops && bus->ops->name)			\
-		return bus->ops->name al;			\
-	return __do_##name al;					\
-}
-
-#define DEF_PCI_AC_NORET(name, at, al, space, aa)		\
-static void iowa_##name at					\
-{								\
-	struct iowa_bus *bus;					\
-	bus = iowa_##space##_find_bus(aa);			\
-	if (bus && bus->ops && bus->ops->name) {		\
-		bus->ops->name al;				\
-		return;						\
-	}							\
-	__do_##name al;						\
-}
-
-#include <asm/io-defs.h>
-
-#undef DEF_PCI_AC_RET
-#undef DEF_PCI_AC_NORET
-
-static const struct ppc_pci_io iowa_pci_io = {
-
-#define DEF_PCI_AC_RET(name, ret, at, al, space, aa)	.name = iowa_##name,
-#define DEF_PCI_AC_NORET(name, at, al, space, aa)	.name = iowa_##name,
-
-#include <asm/io-defs.h>
-
-#undef DEF_PCI_AC_RET
-#undef DEF_PCI_AC_NORET
-
-};
-
-#ifdef CONFIG_PPC_INDIRECT_MMIO
-void __iomem *iowa_ioremap(phys_addr_t addr, unsigned long size,
-			   pgprot_t prot, void *caller)
-{
-	struct iowa_bus *bus;
-	void __iomem *res = __ioremap_caller(addr, size, prot, caller);
-	int busno;
-
-	bus = iowa_pci_find(0, (unsigned long)addr);
-	if (bus != NULL) {
-		busno = bus - iowa_busses;
-		PCI_SET_ADDR_TOKEN(res, busno + 1);
-	}
-	return res;
-}
-#endif /* !CONFIG_PPC_INDIRECT_MMIO */
-
-bool io_workaround_inited;
-
-/* Enable IO workaround */
-static void io_workaround_init(void)
-{
-	if (io_workaround_inited)
-		return;
-	ppc_pci_io = iowa_pci_io;
-	io_workaround_inited = true;
-}
-
-/* Register new bus to support workaround */
-void iowa_register_bus(struct pci_controller *phb, struct ppc_pci_io *ops,
-		       int (*initfunc)(struct iowa_bus *, void *), void *data)
-{
-	struct iowa_bus *bus;
-	struct device_node *np = phb->dn;
-
-	io_workaround_init();
-
-	if (iowa_bus_count >= IOWA_MAX_BUS) {
-		pr_err("IOWA:Too many pci bridges, "
-		       "workarounds disabled for %pOF\n", np);
-		return;
-	}
-
-	bus = &iowa_busses[iowa_bus_count];
-	bus->phb = phb;
-	bus->ops = ops;
-	bus->private = data;
-
-	if (initfunc)
-		if ((*initfunc)(bus, data))
-			return;
-
-	iowa_bus_count++;
-
-	pr_debug("IOWA:[%d]Add bus, %pOF.\n", iowa_bus_count-1, np);
-}
-

arch/powerpc/kernel/io.c

···
 
 	if (unlikely(count <= 0))
 		return;
-	asm volatile("sync");
+
+	mb();
 	do {
 		tmp = *(const volatile u8 __force *)port;
 		eieio();
 		*tbuf++ = tmp;
 	} while (--count != 0);
-	asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+	data_barrier(tmp);
 }
 EXPORT_SYMBOL(_insb);
 
···
 
 	if (unlikely(count <= 0))
 		return;
-	asm volatile("sync");
+
+	mb();
 	do {
 		*(volatile u8 __force *)port = *tbuf++;
 	} while (--count != 0);
-	asm volatile("sync");
+	mb();
 }
 EXPORT_SYMBOL(_outsb);
 
-void _insw_ns(const volatile u16 __iomem *port, void *buf, long count)
+void _insw(const volatile u16 __iomem *port, void *buf, long count)
 {
 	u16 *tbuf = buf;
 	u16 tmp;
 
 	if (unlikely(count <= 0))
 		return;
-	asm volatile("sync");
+
+	mb();
 	do {
 		tmp = *(const volatile u16 __force *)port;
 		eieio();
 		*tbuf++ = tmp;
 	} while (--count != 0);
-	asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+	data_barrier(tmp);
 }
-EXPORT_SYMBOL(_insw_ns);
+EXPORT_SYMBOL(_insw);
 
-void _outsw_ns(volatile u16 __iomem *port, const void *buf, long count)
+void _outsw(volatile u16 __iomem *port, const void *buf, long count)
 {
 	const u16 *tbuf = buf;
 
 	if (unlikely(count <= 0))
 		return;
-	asm volatile("sync");
+
+	mb();
 	do {
 		*(volatile u16 __force *)port = *tbuf++;
 	} while (--count != 0);
-	asm volatile("sync");
+	mb();
 }
-EXPORT_SYMBOL(_outsw_ns);
+EXPORT_SYMBOL(_outsw);
 
-void _insl_ns(const volatile u32 __iomem *port, void *buf, long count)
+void _insl(const volatile u32 __iomem *port, void *buf, long count)
 {
 	u32 *tbuf = buf;
 	u32 tmp;
 
 	if (unlikely(count <= 0))
 		return;
-	asm volatile("sync");
+
+	mb();
 	do {
 		tmp = *(const volatile u32 __force *)port;
 		eieio();
 		*tbuf++ = tmp;
 	} while (--count != 0);
-	asm volatile("twi 0,%0,0; isync" : : "r" (tmp));
+	data_barrier(tmp);
 }
-EXPORT_SYMBOL(_insl_ns);
+EXPORT_SYMBOL(_insl);
 
-void _outsl_ns(volatile u32 __iomem *port, const void *buf, long count)
+void _outsl(volatile u32 __iomem *port, const void *buf, long count)
 {
 	const u32 *tbuf = buf;
 
 	if (unlikely(count <= 0))
 		return;
-	asm volatile("sync");
+
+	mb();
 	do {
 		*(volatile u32 __force *)port = *tbuf++;
 	} while (--count != 0);
-	asm volatile("sync");
+	mb();
 }
-EXPORT_SYMBOL(_outsl_ns);
+EXPORT_SYMBOL(_outsl);
 
 #define IO_CHECK_ALIGN(v,a) ((((unsigned long)(v)) & ((a) - 1)) == 0)
 
···
 	lc |= lc << 8;
 	lc |= lc << 16;
 
-	__asm__ __volatile__ ("sync" : : : "memory");
+	mb();
 	while(n && !IO_CHECK_ALIGN(p, 4)) {
 		*((volatile u8 *)p) = c;
 		p++;
···
 		p++;
 		n--;
 	}
-	__asm__ __volatile__ ("sync" : : : "memory");
+	mb();
 }
 EXPORT_SYMBOL(_memset_io);
 
···
 {
 	void *vsrc = (void __force *) src;
 
-	__asm__ __volatile__ ("sync" : : : "memory");
+	mb();
 	while(n && (!IO_CHECK_ALIGN(vsrc, 4) || !IO_CHECK_ALIGN(dest, 4))) {
 		*((u8 *)dest) = *((volatile u8 *)vsrc);
 		eieio();
···
 		dest++;
 		n--;
 	}
-	__asm__ __volatile__ ("sync" : : : "memory");
+	mb();
 }
 EXPORT_SYMBOL(_memcpy_fromio);
 
···
 {
 	void *vdest = (void __force *) dest;
 
-	__asm__ __volatile__ ("sync" : : : "memory");
+	mb();
 	while(n && (!IO_CHECK_ALIGN(vdest, 4) || !IO_CHECK_ALIGN(src, 4))) {
 		*((volatile u8 *)vdest) = *((u8 *)src);
 		src++;
···
 		vdest++;
 		n--;
 	}
-	__asm__ __volatile__ ("sync" : : : "memory");
+	mb();
 }
 EXPORT_SYMBOL(_memcpy_toio);

arch/powerpc/kernel/of_platform.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *    Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
- *			 <[e-mail]>
- *    and		 Arnd Bergmann, IBM Corp.
- */
-
-#undef DEBUG
-
-#include <linux/string.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/mod_devicetable.h>
-#include <linux/pci.h>
-#include <linux/platform_device.h>
-#include <linux/atomic.h>
-
-#include <asm/errno.h>
-#include <asm/topology.h>
-#include <asm/pci-bridge.h>
-#include <asm/ppc-pci.h>
-#include <asm/eeh.h>
-
-#ifdef CONFIG_PPC_OF_PLATFORM_PCI
-
-/* The probing of PCI controllers from of_platform is currently
- * 64 bits only, mostly due to gratuitous differences between
- * the 32 and 64 bits PCI code on PowerPC and the 32 bits one
- * lacking some bits needed here.
- */
-
-static int of_pci_phb_probe(struct platform_device *dev)
-{
-	struct pci_controller *phb;
-
-	/* Check if we can do that ... */
-	if (ppc_md.pci_setup_phb == NULL)
-		return -ENODEV;
-
-	pr_info("Setting up PCI bus %pOF\n", dev->dev.of_node);
-
-	/* Alloc and setup PHB data structure */
-	phb = pcibios_alloc_controller(dev->dev.of_node);
-	if (!phb)
-		return -ENODEV;
-
-	/* Setup parent in sysfs */
-	phb->parent = &dev->dev;
-
-	/* Setup the PHB using arch provided callback */
-	if (ppc_md.pci_setup_phb(phb)) {
-		pcibios_free_controller(phb);
-		return -ENODEV;
-	}
-
-	/* Process "ranges" property */
-	pci_process_bridge_OF_ranges(phb, dev->dev.of_node, 0);
-
-	/* Init pci_dn data structures */
-	pci_devs_phb_init_dynamic(phb);
-
-	/* Create EEH PE for the PHB */
-	eeh_phb_pe_create(phb);
-
-	/* Scan the bus */
-	pcibios_scan_phb(phb);
-	if (phb->bus == NULL)
-		return -ENXIO;
-
-	/* Claim resources. This might need some rework as well depending
-	 * whether we are doing probe-only or not, like assigning unassigned
-	 * resources etc...
-	 */
-	pcibios_claim_one_bus(phb->bus);
-
-	/* Add probed PCI devices to the device model */
-	pci_bus_add_devices(phb->bus);
-
-	return 0;
-}
-
-static const struct of_device_id of_pci_phb_ids[] = {
-	{ .type = "pci", },
-	{ .type = "pcix", },
-	{ .type = "pcie", },
-	{ .type = "pciex", },
-	{ .type = "ht", },
-	{}
-};
-
-static struct platform_driver of_pci_phb_driver = {
-	.probe = of_pci_phb_probe,
-	.driver = {
-		.name = "of-pci",
-		.of_match_table = of_pci_phb_ids,
-	},
-};
-
-builtin_platform_driver(of_pci_phb_driver);
-
-#endif /* CONFIG_PPC_OF_PLATFORM_PCI */

arch/powerpc/kernel/prom_init.c

···
 		.virt_base = cpu_to_be32(0xffffffff),
 		.virt_size = cpu_to_be32(0xffffffff),
 		.load_base = cpu_to_be32(0xffffffff),
-		.min_rma = cpu_to_be32(512),		/* 512MB min RMA */
+		.min_rma = cpu_to_be32(MIN_RMA),
 		.min_load = cpu_to_be32(0xffffffff),	/* full client load */
 		.min_rma_percent = 0,	/* min RMA percentage of total RAM */
 		.max_pft_size = 48,	/* max log_2(hash table size) */
···
 	char type[8];
 	phandle node;
 
-	// Some pmacs are missing #size-cells on escc nodes
+	// Some pmacs are missing #size-cells on escc or i2s nodes
 	for (node = 0; prom_next_node(&node); ) {
 		type[0] = '\0';
 		prom_getprop(node, "device_type", type, sizeof(type));
-		if (prom_strcmp(type, "escc"))
+		if (prom_strcmp(type, "escc") && prom_strcmp(type, "i2s"))
 			continue;
 
 		if (prom_getproplen(node, "#size-cells") != PROM_ERROR)

arch/powerpc/kernel/rtas.c

···
 	udbg_putc = call_rtas_display_status_delay;
 }
 
-#ifdef CONFIG_UDBG_RTAS_CONSOLE
-
-/* If you think you're dying before early_init_dt_scan_rtas() does its
- * work, you can hard code the token values for your firmware here and
- * hardcode rtas.base/entry etc.
- */
-static unsigned int rtas_putchar_token = RTAS_UNKNOWN_SERVICE;
-static unsigned int rtas_getchar_token = RTAS_UNKNOWN_SERVICE;
-
-static void udbg_rtascon_putc(char c)
-{
-	int tries;
-
-	if (!rtas.base)
-		return;
-
-	/* Add CRs before LFs */
-	if (c == '\n')
-		udbg_rtascon_putc('\r');
-
-	/* if there is more than one character to be displayed, wait a bit */
-	for (tries = 0; tries < 16; tries++) {
-		if (rtas_call(rtas_putchar_token, 1, 1, NULL, c) == 0)
-			break;
-		udelay(1000);
-	}
-}
-
-static int udbg_rtascon_getc_poll(void)
-{
-	int c;
-
-	if (!rtas.base)
-		return -1;
-
-	if (rtas_call(rtas_getchar_token, 0, 2, &c))
-		return -1;
-
-	return c;
-}
-
-static int udbg_rtascon_getc(void)
-{
-	int c;
-
-	while ((c = udbg_rtascon_getc_poll()) == -1)
-		;
-
-	return c;
-}
-
-
-void __init udbg_init_rtas_console(void)
-{
-	udbg_putc = udbg_rtascon_putc;
-	udbg_getc = udbg_rtascon_getc;
-	udbg_getc_poll = udbg_rtascon_getc_poll;
-}
-#endif /* CONFIG_UDBG_RTAS_CONSOLE */
-
 void rtas_progress(char *s, unsigned short hex)
 {
 	struct device_node *root;
···
 		rtas.entry = *entryp;
 		rtas.size = *sizep;
 	}
-
-#ifdef CONFIG_UDBG_RTAS_CONSOLE
-	basep = of_get_flat_dt_prop(node, "put-term-char", NULL);
-	if (basep)
-		rtas_putchar_token = *basep;
-
-	basep = of_get_flat_dt_prop(node, "get-term-char", NULL);
-	if (basep)
-		rtas_getchar_token = *basep;
-
-	if (rtas_putchar_token != RTAS_UNKNOWN_SERVICE &&
-	    rtas_getchar_token != RTAS_UNKNOWN_SERVICE)
-		udbg_init_rtas_console();
-
-#endif
 
 	/* break now */
 	return 1;

arch/powerpc/kernel/setup_64.c

···
 }
 #endif
 
-#if defined(CONFIG_PPC_INDIRECT_PIO) || defined(CONFIG_PPC_INDIRECT_MMIO)
+#ifdef CONFIG_PPC_INDIRECT_PIO
 struct ppc_pci_io ppc_pci_io;
 EXPORT_SYMBOL(ppc_pci_io);
 #endif

arch/powerpc/kernel/static_call.c

···
 {
 	int err;
 	bool is_ret0 = (func == __static_call_return0);
-	unsigned long target = (unsigned long)(is_ret0 ? tramp + PPC_SCT_RET0 : func);
-	bool is_short = is_offset_in_branch_range((long)target - (long)tramp);
-
-	if (!tramp)
-		return;
+	unsigned long _tramp = (unsigned long)tramp;
+	unsigned long _func = (unsigned long)func;
+	unsigned long _ret0 = _tramp + PPC_SCT_RET0;
+	bool is_short = is_offset_in_branch_range((long)func - (long)(site ? : tramp));
 
 	mutex_lock(&text_mutex);
 
-	if (func && !is_short) {
-		err = patch_ulong(tramp + PPC_SCT_DATA, target);
-		if (err)
-			goto out;
+	if (site && tail) {
+		if (!func)
+			err = patch_instruction(site, ppc_inst(PPC_RAW_BLR()));
+		else if (is_ret0)
+			err = patch_branch(site, _ret0, 0);
+		else if (is_short)
+			err = patch_branch(site, _func, 0);
+		else if (tramp)
+			err = patch_branch(site, _tramp, 0);
+		else
+			err = 0;
+	} else if (site) {
+		if (!func)
+			err = patch_instruction(site, ppc_inst(PPC_RAW_NOP()));
+		else if (is_ret0)
+			err = patch_instruction(site, ppc_inst(PPC_RAW_LI(_R3, 0)));
+		else if (is_short)
+			err = patch_branch(site, _func, BRANCH_SET_LINK);
+		else if (tramp)
+			err = patch_branch(site, _tramp, BRANCH_SET_LINK);
+		else
+			err = 0;
+	} else if (tramp) {
+		if (func && !is_short) {
+			err = patch_ulong(tramp + PPC_SCT_DATA, _func);
+			if (err)
+				goto out;
+		}
+
+		if (!func)
+			err = patch_instruction(tramp, ppc_inst(PPC_RAW_BLR()));
+		else if (is_ret0)
+			err = patch_branch(tramp, _ret0, 0);
+		else if (is_short)
+			err = patch_branch(tramp, _func, 0);
+		else
+			err = patch_instruction(tramp, ppc_inst(PPC_RAW_NOP()));
+	} else {
+		err = 0;
 	}
 
-	if (!func)
-		err = patch_instruction(tramp, ppc_inst(PPC_RAW_BLR()));
-	else if (is_short)
-		err = patch_branch(tramp, target, 0);
-	else
-		err = patch_instruction(tramp, ppc_inst(PPC_RAW_NOP()));
 out:
 	mutex_unlock(&text_mutex);
 

arch/powerpc/kernel/switch.S

···
 
 	// Flush the link stack
 	.rept 64
-	ANNOTATE_INTRA_FUNCTION_CALL
 	bl	.+4
 	.endr
 	b	1f

arch/powerpc/kernel/time.c

···
 	register_decrementer_clockevent(smp_processor_id());
 }
 
+/*
+ * Divide a 128-bit dividend by a 32-bit divisor, leaving a 128 bit
+ * result.
+ */
+static __init void div128_by_32(u64 dividend_high, u64 dividend_low,
+				unsigned int divisor, struct div_result *dr)
+{
+	unsigned long a, b, c, d;
+	unsigned long w, x, y, z;
+	u64 ra, rb, rc;
+
+	a = dividend_high >> 32;
+	b = dividend_high & 0xffffffff;
+	c = dividend_low >> 32;
+	d = dividend_low & 0xffffffff;
+
+	w = a / divisor;
+	ra = ((u64)(a - (w * divisor)) << 32) + b;
+
+	rb = ((u64)do_div(ra, divisor) << 32) + c;
+	x = ra;
+
+	rc = ((u64)do_div(rb, divisor) << 32) + d;
+	y = rb;
+
+	do_div(rc, divisor);
+	z = rc;
+
+	dr->result_high = ((u64)w << 32) + x;
+	dr->result_low  = ((u64)y << 32) + z;
+}
+
 /* This function is only called on the boot processor */
 void __init time_init(void)
 {
···
 
 	of_clk_init(NULL);
 	enable_sched_clock_irqtime();
-}
-
-/*
- * Divide a 128-bit dividend by a 32-bit divisor, leaving a 128 bit
- * result.
- */
-void div128_by_32(u64 dividend_high, u64 dividend_low,
-		  unsigned divisor, struct div_result *dr)
-{
-	unsigned long a, b, c, d;
-	unsigned long w, x, y, z;
-	u64 ra, rb, rc;
-
-	a = dividend_high >> 32;
-	b = dividend_high & 0xffffffff;
-	c = dividend_low >> 32;
-	d = dividend_low & 0xffffffff;
-
-	w = a / divisor;
-	ra = ((u64)(a - (w * divisor)) << 32) + b;
-
-	rb = ((u64) do_div(ra, divisor) << 32) + c;
-	x = ra;
-
-	rc = ((u64) do_div(rb, divisor) << 32) + d;
-	y = rb;
-
-	do_div(rc, divisor);
-	z = rc;
-
-	dr->result_high = ((u64)w << 32) + x;
-	dr->result_low  = ((u64)y << 32) + z;
-
 }
 
 /* We don't need to calibrate delay, we use the CPU timebase for that */

arch/powerpc/kernel/udbg.c

···
 #elif defined(CONFIG_PPC_EARLY_DEBUG_RTAS_PANEL)
 	/* RTAS panel debug */
 	udbg_init_rtas_panel();
-#elif defined(CONFIG_PPC_EARLY_DEBUG_RTAS_CONSOLE)
-	/* RTAS console debug */
-	udbg_init_rtas_console();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_PAS_REALMODE)
 	udbg_init_pas_realmode();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_BOOTX)

arch/powerpc/kernel/vmlinux.lds.S

···
 /* SPDX-License-Identifier: GPL-2.0 */
-#ifdef CONFIG_PPC64
-#define PROVIDE32(x)	PROVIDE(__unused__##x)
-#else
-#define PROVIDE32(x)	PROVIDE(x)
-#endif
-
 #define BSS_FIRST_SECTIONS *(.bss.prominit)
 #define EMITS_PT_NOTE
 #define RO_EXCEPTION_TABLE_ALIGN	0
···
 
 	. = ALIGN(PAGE_SIZE);
 	_etext = .;
-	PROVIDE32 (etext = .);
 
 	/* Read-only data */
 	RO_DATA(PAGE_SIZE)
···
 
 	. = ALIGN(PAGE_SIZE);
 	_edata  =  .;
-	PROVIDE32 (edata = .);
 
 /*
  * And finally the bss
···
 
 	. = ALIGN(PAGE_SIZE);
 	_end = . ;
-	PROVIDE32 (end = .);
 
 	DWARF_DEBUG
 	ELF_DETAILS

arch/powerpc/kexec/relocate_32.S

···
 	rlwinm	r10, r24, 0, 22, 27
 
 	cmpwi	r10, PPC47x_TLB0_4K
-	bne	0f
 	li	r10, 0x1000			/* r10 = 4k */
-	ANNOTATE_INTRA_FUNCTION_CALL
-	bl	1f
+	beq	0f
 
-0:
 	/* Defaults to 256M */
 	lis	r10, 0x1000
 
-	bcl	20,31,$+4
+0:	bcl	20,31,$+4
 1:	mflr	r4
 	addi	r4, r4, (2f-1b)			/* virtual address  of 2f */
 

arch/powerpc/kvm/book3s_32_mmu_host.c

···
 	return (u32*)pteg;
 }
 
-extern char etext[];
-
 int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
 			bool iswrite)
 {

arch/powerpc/kvm/book3s_hv_rmhandlers.S

···
 
 	/* Flush the link stack. On Power8 it's up to 32 entries in size. */
 	.rept 32
-	ANNOTATE_INTRA_FUNCTION_CALL
 	bl	.+4
 	.endr
 
 	/* And on Power9 it's up to 64. */
 BEGIN_FTR_SECTION
 	.rept 32
-	ANNOTATE_INTRA_FUNCTION_CALL
 	bl	.+4
 	.endr
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)

arch/powerpc/kvm/powerpc.c

···
 
 #ifdef CONFIG_PPC_BOOK3S_64
 	case KVM_CAP_SPAPR_TCE:
+		fallthrough;
 	case KVM_CAP_SPAPR_TCE_64:
-		r = 1;
-		break;
 	case KVM_CAP_SPAPR_TCE_VFIO:
-		r = !!cpu_has_feature(CPU_FTR_HVMODE);
-		break;
 	case KVM_CAP_PPC_RTAS:
 	case KVM_CAP_PPC_FIXUP_HCALL:
 	case KVM_CAP_PPC_ENABLE_HCALL:

arch/powerpc/mm/book3s64/hash_utils.c

···
 	} else {
 		unsigned long limit = MEMBLOCK_ALLOC_ANYWHERE;
 
-#ifdef CONFIG_PPC_CELL
-		/*
-		 * Cell may require the hash table down low when using the
-		 * Axon IOMMU in order to fit the dynamic region over it, see
-		 * comments in cell/iommu.c
-		 */
-		if (fdt_subnode_offset(initial_boot_params, 0, "axon") > 0) {
-			limit = 0x80000000;
-			pr_info("Hash table forced below 2G for Axon IOMMU\n");
-		}
-#endif /* CONFIG_PPC_CELL */
-
 		table = memblock_phys_alloc_range(htab_size_bytes,
 						  htab_size_bytes,
 						  0, limit);

arch/powerpc/mm/book3s64/pgtable.c

···
 /*
  * Does the CPU support tlbie?
  */
-bool tlbie_capable __read_mostly = true;
+bool tlbie_capable __read_mostly = IS_ENABLED(CONFIG_PPC_RADIX_BROADCAST_TLBIE);
 EXPORT_SYMBOL(tlbie_capable);
 
 /*
···
  * address spaces? tlbie may still be used for nMMU accelerators, and for KVM
  * guest address spaces.
  */
-bool tlbie_enabled __read_mostly = true;
+bool tlbie_enabled __read_mostly = IS_ENABLED(CONFIG_PPC_RADIX_BROADCAST_TLBIE);
 
 static int __init setup_disable_tlbie(char *str)
 {

arch/powerpc/mm/ioremap.c

···
 #include <linux/slab.h>
 #include <linux/mmzone.h>
 #include <linux/vmalloc.h>
-#include <asm/io-workarounds.h>
 
 unsigned long ioremap_bot;
 EXPORT_SYMBOL(ioremap_bot);
···
 	pgprot_t prot = pgprot_noncached(PAGE_KERNEL);
 	void *caller = __builtin_return_address(0);
 
-	if (iowa_is_active())
-		return iowa_ioremap(addr, size, prot, caller);
 	return __ioremap_caller(addr, size, prot, caller);
 }
 EXPORT_SYMBOL(ioremap);
···
 	pgprot_t prot = pgprot_noncached_wc(PAGE_KERNEL);
 	void *caller = __builtin_return_address(0);
 
-	if (iowa_is_active())
-		return iowa_ioremap(addr, size, prot, caller);
 	return __ioremap_caller(addr, size, prot, caller);
 }
 EXPORT_SYMBOL(ioremap_wc);
···
 	pgprot_t prot = pgprot_cached(PAGE_KERNEL);
 	void *caller = __builtin_return_address(0);
 
-	if (iowa_is_active())
-		return iowa_ioremap(addr, size, prot, caller);
 	return __ioremap_caller(addr, size, prot, caller);
 }
 
···
 	if (pte_write(pte))
 		pte = pte_mkdirty(pte);
 
-	if (iowa_is_active())
-		return iowa_ioremap(addr, size, pte_pgprot(pte), caller);
 	return __ioremap_caller(addr, size, pte_pgprot(pte), caller);
 }
 EXPORT_SYMBOL(ioremap_prot);

arch/powerpc/mm/ioremap_64.c

···
 	if (!slab_is_available())
 		return;
 
-	generic_iounmap(PCI_FIX_ADDR(token));
+	generic_iounmap(token);
 }
 EXPORT_SYMBOL(iounmap);

arch/powerpc/mm/mem.c

···
 	per_cpu(next_tlbcam_idx, smp_processor_id()) =
 		(mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) - 1;
 #endif
-
-#ifdef CONFIG_PPC32
-	pr_info("Kernel virtual memory layout:\n");
-#ifdef CONFIG_KASAN
-	pr_info("  * 0x%08lx..0x%08lx  : kasan shadow mem\n",
-		KASAN_SHADOW_START, KASAN_SHADOW_END);
-#endif
-	pr_info("  * 0x%08lx..0x%08lx  : fixmap\n", FIXADDR_START, FIXADDR_TOP);
-#ifdef CONFIG_HIGHMEM
-	pr_info("  * 0x%08lx..0x%08lx  : highmem PTEs\n",
-		PKMAP_BASE, PKMAP_ADDR(LAST_PKMAP));
-#endif /* CONFIG_HIGHMEM */
-	if (ioremap_bot != IOREMAP_TOP)
-		pr_info("  * 0x%08lx..0x%08lx  : early ioremap\n",
-			ioremap_bot, IOREMAP_TOP);
-	pr_info("  * 0x%08lx..0x%08lx  : vmalloc & ioremap\n",
-		VMALLOC_START, VMALLOC_END);
-#ifdef MODULES_VADDR
-	pr_info("  * 0x%08lx..0x%08lx  : modules\n",
-		MODULES_VADDR, MODULES_END);
-#endif
-#endif /* CONFIG_PPC32 */
 }
 
 void free_initmem(void)

arch/powerpc/mm/numa.c

···
 	return nid;
 }
 
-static u64 hot_add_drconf_memory_max(void)
+u64 hot_add_drconf_memory_max(void)
 {
 	struct device_node *memory = NULL;
 	struct device_node *dn = NULL;

arch/powerpc/perf/core-book3s.c

···
 #define PERF_SAMPLE_ADDR_TYPE  (PERF_SAMPLE_ADDR |		\
 				PERF_SAMPLE_PHYS_ADDR |		\
 				PERF_SAMPLE_DATA_PAGE_SIZE)
+
+#define SIER_TYPE_SHIFT	15
+#define SIER_TYPE_MASK	(0x7ull << SIER_TYPE_SHIFT)
+
 /*
  * A counter has overflowed; update its count and record
  * things if requested.  Note that interrupts are hard-disabled
···
 	    (event->attr.sample_type & PERF_SAMPLE_IP) &&
 	    is_kernel_addr(mfspr(SPRN_SIAR)))
 		record = 0;
+
+	/*
+	 * SIER[46-48] presents instruction type of the sampled instruction.
+	 * In ISA v3.0 and before values "0" and "7" are considered reserved.
+	 * In ISA v3.1, value "7" has been used to indicate "larx/stcx".
+	 * Drop the sample if "type" has reserved values for this field with a
+	 * ISA version check.
+	 */
+	if (event->attr.sample_type & PERF_SAMPLE_DATA_SRC &&
+			ppmu->get_mem_data_src) {
+		val = (regs->dar & SIER_TYPE_MASK) >> SIER_TYPE_SHIFT;
+		if (val == 0 || (val == 7 && !cpu_has_feature(CPU_FTR_ARCH_31))) {
+			record = 0;
+			atomic64_inc(&event->lost_samples);
+		}
+	}
 
 	/*
 	 * Finally record data if requested.

arch/powerpc/perf/isa207-common.c

···
 		return;
 	}
 
-	sier = mfspr(SPRN_SIER);
+	/*
+	 * Use regs-dar for SPRN_SIER which is saved
+	 * during perf_read_regs at the beginning
+	 * of the PMU interrupt handler to avoid multiple
+	 * reads of SPRN_SIER
+	 */
+	sier = regs->dar;
 	val = (sier & ISA207_SIER_TYPE_MASK) >> ISA207_SIER_TYPE_SHIFT;
-	if (val != 1 && val != 2 && !(val == 7 && cpu_has_feature(CPU_FTR_ARCH_31)))
+	if (val != 1 && val != 2 && !(val == 7 && cpu_has_feature(CPU_FTR_ARCH_31))) {
+		dsrc->val = 0;
 		return;
+	}
 
 	idx = (sier & ISA207_SIER_LDST_MASK) >> ISA207_SIER_LDST_SHIFT;
 	sub_idx = (sier & ISA207_SIER_DATA_SRC_MASK) >> ISA207_SIER_DATA_SRC_SHIFT;
···
 		 * to determine the exact instruction type. If the sampling
 		 * criteria is neither load or store, set the type as default
 		 * to NA.
+		 *
+		 * Use regs->dsisr for MMCRA which is saved during perf_read_regs
+		 * at the beginning of the PMU interrupt handler to avoid
+		 * multiple reads of SPRN_MMCRA
 		 */
-		mmcra = mfspr(SPRN_MMCRA);
+		mmcra = regs->dsisr;
 
 		op_type = (mmcra >> MMCRA_SAMP_ELIG_SHIFT) & MMCRA_SAMP_ELIG_MASK;
 		switch (op_type) {

arch/powerpc/perf/vpa-pmu.c

···
 }
 
 static struct pmu vpa_pmu = {
+	.module		= THIS_MODULE,
 	.task_ctx_nr	= perf_sw_context,
 	.name		= "vpa_pmu",
 	.event_init	= vpa_pmu_event_init,

arch/powerpc/platforms/44x/uic.c

···
 #define UIC_VR		0x7
 #define UIC_VCR		0x8
 
-struct uic *primary_uic;
+static struct uic *primary_uic;
 
 struct uic {
 	int index;

arch/powerpc/platforms/Kconfig

···
 	  firmware provides this binding.
 	  If you're not sure say Y.
 
-config UDBG_RTAS_CONSOLE
-	bool "RTAS based debug console"
-	depends on PPC_RTAS
-
 config PPC_SMP_MUXED_IPI
 	bool
 	help
···
 config PPC_INDIRECT_PIO
 	bool
 	select GENERIC_IOMAP
-
-config PPC_INDIRECT_MMIO
-	bool
-
-config PPC_IO_WORKAROUNDS
-	bool
 
 source "drivers/cpufreq/Kconfig"
 

arch/powerpc/platforms/Kconfig.cputype

···
 
 	  If you're unsure, say Y.
 
+config PPC_RADIX_BROADCAST_TLBIE
+	bool
+	depends on PPC_RADIX_MMU
+	help
+	  Power ISA v3.0 and later implementations in the Linux Compliancy Subset
+	  and lower are not required to implement broadcast TLBIE instructions.
+	  Platforms with CPUs that do implement TLBIE broadcast, that is, where
+	  a TLB invalidation instruction performed on one CPU operates on the
+	  TLBs of all CPUs in the system, should select this option.  If this
+	  option is selected, the disable_tlbie kernel command line option can
+	  be used to cause global TLB invalidations to be done via IPIs; without
+	  it, IPIs will be used unconditionally.
+
 config PPC_KERNEL_PREFIXED
 	depends on PPC_HAVE_PREFIXED_SUPPORT
 	depends on CC_HAS_PREFIXED

arch/powerpc/platforms/cell/Kconfig

···
 	select PPC_64S_HASH_MMU if PPC64
 	bool
 
-config PPC_CELL_COMMON
-	bool
-	select PPC_CELL
-	select PPC_DCR_MMIO
-	select PPC_INDIRECT_PIO
-	select PPC_INDIRECT_MMIO
-	select PPC_HASH_MMU_NATIVE
-	select PPC_RTAS
-	select IRQ_EDGE_EOI_HANDLER
-
-config PPC_CELL_NATIVE
-	bool
-	select PPC_CELL_COMMON
-	select MPIC
-	select PPC_IO_WORKAROUNDS
-	select IBM_EMAC_EMAC4 if IBM_EMAC
-	select IBM_EMAC_RGMII if IBM_EMAC
-	select IBM_EMAC_ZMII if IBM_EMAC #test only
-	select IBM_EMAC_TAH if IBM_EMAC  #test only
-
-config PPC_IBM_CELL_BLADE
-	bool "IBM Cell Blade"
-	depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
-	select PPC_CELL_NATIVE
-	select PPC_OF_PLATFORM_PCI
-	select FORCE_PCI
-	select MMIO_NVRAM
-	select PPC_UDBG_16550
-	select UDBG_RTAS_CONSOLE
-
-config AXON_MSI
-	bool
-	depends on PPC_IBM_CELL_BLADE && PCI_MSI
-	select IRQ_DOMAIN_NOMAP
-	default y
-
 menu "Cell Broadband Engine options"
 	depends on PPC_CELL
 
···
 config SPU_BASE
 	bool
 	select PPC_COPRO_BASE
-
-config CBE_RAS
-	bool "RAS features for bare metal Cell BE"
-	depends on PPC_CELL_NATIVE
-	default y
-
-config PPC_IBM_CELL_RESETBUTTON
-	bool "IBM Cell Blade Pinhole reset button"
-	depends on CBE_RAS && PPC_IBM_CELL_BLADE
-	default y
-	help
-	  Support Pinhole Resetbutton on IBM Cell blades.
-	  This adds a method to trigger system reset via front panel pinhole button.
-
-config PPC_IBM_CELL_POWERBUTTON
-	tristate "IBM Cell Blade power button"
-	depends on PPC_IBM_CELL_BLADE && INPUT_EVDEV
-	default y
-	help
-	  Support Powerbutton on IBM Cell blades.
-	  This will enable the powerbutton as an input device.
-
-config CBE_THERM
-	tristate "CBE thermal support"
-	default m
-	depends on CBE_RAS && SPU_BASE
-
-config PPC_PMI
-	tristate
-	default y
-	depends on CPU_FREQ_CBE_PMI || PPC_IBM_CELL_POWERBUTTON
-	help
-	  PMI (Platform Management Interrupt) is a way to
-	  communicate with the BMC (Baseboard Management Controller).
-	  It is used in some IBM Cell blades.
-
-config CBE_CPUFREQ_SPU_GOVERNOR
-	tristate "CBE frequency scaling based on SPU usage"
-	depends on SPU_FS && CPU_FREQ
-	default m
-	help
-	  This governor checks for spu usage to adjust the cpu frequency.
-	  If no spu is running on a given cpu, that cpu will be throttled to
-	  the minimal possible frequency.
 
 endmenu

arch/powerpc/platforms/cell/Makefile

···
 # SPDX-License-Identifier: GPL-2.0
-obj-$(CONFIG_PPC_CELL_COMMON)		+= cbe_regs.o interrupt.o pervasive.o
-
-obj-$(CONFIG_PPC_CELL_NATIVE)		+= iommu.o setup.o spider-pic.o \
-					   pmu.o spider-pci.o
-obj-$(CONFIG_CBE_RAS)			+= ras.o
-
-obj-$(CONFIG_CBE_THERM)			+= cbe_thermal.o
-obj-$(CONFIG_CBE_CPUFREQ_SPU_GOVERNOR)	+= cpufreq_spudemand.o
-
-obj-$(CONFIG_PPC_IBM_CELL_POWERBUTTON)	+= cbe_powerbutton.o
-
-ifdef CONFIG_SMP
-obj-$(CONFIG_PPC_CELL_NATIVE)		+= smp.o
-endif
-
-# needed only when building loadable spufs.ko
-spu-priv1-$(CONFIG_PPC_CELL_COMMON)	+= spu_priv1_mmio.o
-spu-manage-$(CONFIG_PPC_CELL_COMMON)	+= spu_manage.o
-
 obj-$(CONFIG_SPU_BASE)			+= spu_callbacks.o spu_base.o \
 					   spu_syscalls.o \
-					   $(spu-priv1-y) \
-					   $(spu-manage-y) \
 					   spufs/
-
-obj-$(CONFIG_AXON_MSI)			+= axon_msi.o

arch/powerpc/platforms/cell/axon_msi.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright 2007, Michael Ellerman, IBM Corporation.
- */
-
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/msi.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include <linux/debugfs.h>
-#include <linux/of.h>
-#include <linux/of_irq.h>
-#include <linux/platform_device.h>
-
-#include <asm/dcr.h>
-#include <asm/machdep.h>
-
-#include "cell.h"
-
-/*
- * MSIC registers, specified as offsets from dcr_base
- */
-#define MSIC_CTRL_REG	0x0
-
-/* Base Address registers specify FIFO location in BE memory */
-#define MSIC_BASE_ADDR_HI_REG	0x3
-#define MSIC_BASE_ADDR_LO_REG	0x4
-
-/* Hold the read/write offsets into the FIFO */
-#define MSIC_READ_OFFSET_REG	0x5
-#define MSIC_WRITE_OFFSET_REG	0x6
-
-
-/* MSIC control register flags */
-#define MSIC_CTRL_ENABLE		0x0001
-#define MSIC_CTRL_FIFO_FULL_ENABLE	0x0002
-#define MSIC_CTRL_IRQ_ENABLE		0x0008
-#define MSIC_CTRL_FULL_STOP_ENABLE	0x0010
-
-/*
- * The MSIC can be configured to use a FIFO of 32KB, 64KB, 128KB or 256KB.
- * Currently we're using a 64KB FIFO size.
- */
-#define MSIC_FIFO_SIZE_SHIFT	16
-#define MSIC_FIFO_SIZE_BYTES	(1 << MSIC_FIFO_SIZE_SHIFT)
-
-/*
- * To configure the FIFO size as (1 << n) bytes, we write (n - 15) into bits
- * 8-9 of the MSIC control reg.
- */
-#define MSIC_CTRL_FIFO_SIZE	(((MSIC_FIFO_SIZE_SHIFT - 15) << 8) & 0x300)
-
-/*
- * We need to mask the read/write offsets to make sure they stay within
- * the bounds of the FIFO. Also they should always be 16-byte aligned.
- */
-#define MSIC_FIFO_SIZE_MASK	((MSIC_FIFO_SIZE_BYTES - 1) & ~0xFu)
-
-/* Each entry in the FIFO is 16 bytes, the first 4 bytes hold the irq # */
-#define MSIC_FIFO_ENTRY_SIZE	0x10
-
-
-struct axon_msic {
-	struct irq_domain *irq_domain;
-	__le32 *fifo_virt;
-	dma_addr_t fifo_phys;
-	dcr_host_t dcr_host;
-	u32 read_offset;
-#ifdef DEBUG
-	u32 __iomem *trigger;
-#endif
-};
-
-#ifdef DEBUG
-void axon_msi_debug_setup(struct device_node *dn, struct axon_msic *msic);
-#else
-static inline void axon_msi_debug_setup(struct device_node *dn,
-					struct axon_msic *msic) { }
-#endif
-
-
-static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val)
-{
-	pr_devel("axon_msi: dcr_write(0x%x, 0x%x)\n", val, dcr_n);
-
-	dcr_write(msic->dcr_host, dcr_n, val);
-}
-
-static void axon_msi_cascade(struct irq_desc *desc)
-{
-	struct irq_chip *chip = irq_desc_get_chip(desc);
-	struct axon_msic *msic = irq_desc_get_handler_data(desc);
-	u32 write_offset, msi;
-	int idx;
-	int retry = 0;
-
-	write_offset = dcr_read(msic->dcr_host, MSIC_WRITE_OFFSET_REG);
-	pr_devel("axon_msi: original write_offset 0x%x\n", write_offset);
-
-	/* write_offset doesn't wrap properly, so we have to mask it */
-	write_offset &= MSIC_FIFO_SIZE_MASK;
-
-	while (msic->read_offset != write_offset && retry < 100) {
-		idx  = msic->read_offset / sizeof(__le32);
-		msi  = le32_to_cpu(msic->fifo_virt[idx]);
-		msi &= 0xFFFF;
-
-		pr_devel("axon_msi: woff %x roff %x msi %x\n",
-			  write_offset, msic->read_offset, msi);
-
-		if (msi < irq_get_nr_irqs() && irq_get_chip_data(msi) == msic) {
-			generic_handle_irq(msi);
-			msic->fifo_virt[idx] = cpu_to_le32(0xffffffff);
-		} else {
-			/*
-			 * Reading the MSIC_WRITE_OFFSET_REG does not
-			 * reliably flush the outstanding DMA to the
-			 * FIFO buffer. Here we were reading stale
-			 * data, so we need to retry.
-			 */
-			udelay(1);
-			retry++;
-			pr_devel("axon_msi: invalid irq 0x%x!\n", msi);
-			continue;
-		}
-
-		if (retry) {
-			pr_devel("axon_msi: late irq 0x%x, retry %d\n",
-				 msi, retry);
-			retry = 0;
-		}
-
-		msic->read_offset += MSIC_FIFO_ENTRY_SIZE;
-		msic->read_offset &= MSIC_FIFO_SIZE_MASK;
-	}
-
-	if (retry) {
-		printk(KERN_WARNING "axon_msi: irq timed out\n");
-
-		msic->read_offset += MSIC_FIFO_ENTRY_SIZE;
-		msic->read_offset &= MSIC_FIFO_SIZE_MASK;
-	}
-
-	chip->irq_eoi(&desc->irq_data);
-}
-
-static struct axon_msic *find_msi_translator(struct pci_dev *dev)
-{
-	struct irq_domain *irq_domain;
-	struct device_node *dn, *tmp;
-	const phandle *ph;
-	struct axon_msic *msic = NULL;
-
-	dn = of_node_get(pci_device_to_OF_node(dev));
-	if (!dn) {
-		dev_dbg(&dev->dev, "axon_msi: no pci_dn found\n");
-		return NULL;
-	}
-
-	for (; dn; dn = of_get_next_parent(dn)) {
-		ph = of_get_property(dn, "msi-translator", NULL);
-		if (ph)
-			break;
-	}
-
-	if (!ph) {
-		dev_dbg(&dev->dev,
-			"axon_msi: no msi-translator property found\n");
-		goto out_error;
-	}
-
-	tmp = dn;
-	dn = of_find_node_by_phandle(*ph);
-	of_node_put(tmp);
-	if (!dn) {
-		dev_dbg(&dev->dev,
-			"axon_msi: msi-translator doesn't point to a node\n");
-		goto out_error;
-	}
-
-	irq_domain = irq_find_host(dn);
-	if (!irq_domain) {
-		dev_dbg(&dev->dev, "axon_msi: no irq_domain found for node %pOF\n",
-			dn);
-		goto out_error;
-	}
-
-	msic = irq_domain->host_data;
-
-out_error:
-	of_node_put(dn);
-
-	return msic;
-}
-
-static int setup_msi_msg_address(struct pci_dev *dev, struct msi_msg *msg)
-{
-	struct device_node *dn;
-	int len;
-	const u32 *prop;
-
-	dn = of_node_get(pci_device_to_OF_node(dev));
-	if (!dn) {
-		dev_dbg(&dev->dev, "axon_msi: no pci_dn found\n");
-		return -ENODEV;
-	}
-
-	for (; dn; dn = of_get_next_parent(dn)) {
-		if (!dev->no_64bit_msi) {
-			prop = of_get_property(dn, "msi-address-64", &len);
-			if (prop)
-				break;
-		}
-
-		prop = of_get_property(dn, "msi-address-32", &len);
-		if (prop)
-			break;
-	}
-
-	if (!prop) {
-		dev_dbg(&dev->dev,
-			"axon_msi: no msi-address-(32|64) properties found\n");
-		of_node_put(dn);
-		return -ENOENT;
-	}
-
-	switch (len) {
-	case 8:
-		msg->address_hi = prop[0];
-		msg->address_lo = prop[1];
-		break;
-	case 4:
-		msg->address_hi = 0;
-		msg->address_lo = prop[0];
-		break;
-	default:
-		dev_dbg(&dev->dev,
-			"axon_msi: malformed msi-address-(32|64) property\n");
-		of_node_put(dn);
-		return -EINVAL;
-	}
-
-	of_node_put(dn);
-
-	return 0;
-}
-
-static int axon_msi_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
-{
-	unsigned int virq, rc;
-	struct msi_desc *entry;
-	struct msi_msg msg;
-	struct axon_msic *msic;
-
-	msic = find_msi_translator(dev);
-	if (!msic)
-		return -ENODEV;
-
-	rc = setup_msi_msg_address(dev, &msg);
-	if (rc)
-		return rc;
-
-	msi_for_each_desc(entry, &dev->dev, MSI_DESC_NOTASSOCIATED) {
-		virq = irq_create_direct_mapping(msic->irq_domain);
-		if (!virq) {
-			dev_warn(&dev->dev,
-				 "axon_msi: virq allocation failed!\n");
-			return -1;
-		}
-		dev_dbg(&dev->dev, "axon_msi: allocated virq 0x%x\n", virq);
-
-		irq_set_msi_desc(virq, entry);
-		msg.data = virq;
-		pci_write_msi_msg(virq, &msg);
-	}
-
-	return 0;
-}
-
-static void axon_msi_teardown_msi_irqs(struct pci_dev *dev)
-{
-	struct msi_desc *entry;
-
-	dev_dbg(&dev->dev, "axon_msi: tearing down msi irqs\n");
-
-	msi_for_each_desc(entry, &dev->dev, MSI_DESC_ASSOCIATED) {
-		irq_set_msi_desc(entry->irq, NULL);
-		irq_dispose_mapping(entry->irq);
-		entry->irq = 0;
-	}
-}
-
-static struct irq_chip msic_irq_chip = {
-	.irq_mask	= pci_msi_mask_irq,
-	.irq_unmask	= pci_msi_unmask_irq,
-	.irq_shutdown	= pci_msi_mask_irq,
-	.name		= "AXON-MSI",
-};
-
-static int msic_host_map(struct irq_domain *h, unsigned int virq,
-			 irq_hw_number_t hw)
-{
-	irq_set_chip_data(virq, h->host_data);
-	irq_set_chip_and_handler(virq, &msic_irq_chip, handle_simple_irq);
-
-	return 0;
-}
-
-static const struct irq_domain_ops msic_host_ops = {
-	.map	= msic_host_map,
-};
-
-static void axon_msi_shutdown(struct platform_device *device)
-{
-	struct axon_msic *msic = dev_get_drvdata(&device->dev);
-	u32 tmp;
-
-	pr_devel("axon_msi: disabling %pOF\n",
-		 irq_domain_get_of_node(msic->irq_domain));
-	tmp  = dcr_read(msic->dcr_host, MSIC_CTRL_REG);
-	tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE;
-	msic_dcr_write(msic, MSIC_CTRL_REG, tmp);
-}
-
-static int axon_msi_probe(struct platform_device *device)
-{
-	struct device_node *dn = device->dev.of_node;
-	struct axon_msic *msic;
-	unsigned int virq;
-	int dcr_base, dcr_len;
-
-	pr_devel("axon_msi: setting up dn %pOF\n", dn);
-
-	msic = kzalloc(sizeof(*msic), GFP_KERNEL);
-	if (!msic) {
-		printk(KERN_ERR "axon_msi: couldn't allocate msic for %pOF\n",
-		       dn);
-		goto out;
-	}
-
-	dcr_base = dcr_resource_start(dn, 0);
-	dcr_len = dcr_resource_len(dn, 0);
-
-	if (dcr_base == 0 || dcr_len == 0) {
-		printk(KERN_ERR
-		       "axon_msi: couldn't parse dcr properties on %pOF\n",
-			dn);
-		goto out_free_msic;
-	}
-
-	msic->dcr_host = dcr_map(dn, dcr_base, dcr_len);
-	if (!DCR_MAP_OK(msic->dcr_host)) {
-		printk(KERN_ERR "axon_msi: dcr_map failed for %pOF\n",
-		       dn);
-		goto out_free_msic;
-	}
-
-	msic->fifo_virt = dma_alloc_coherent(&device->dev, MSIC_FIFO_SIZE_BYTES,
-					     &msic->fifo_phys, GFP_KERNEL);
-	if (!msic->fifo_virt) {
-		printk(KERN_ERR "axon_msi: couldn't allocate fifo for %pOF\n",
-		       dn);
-		goto out_free_msic;
-	}
-
-	virq = irq_of_parse_and_map(dn, 0);
-	if (!virq) {
-		printk(KERN_ERR "axon_msi: irq parse and map failed for %pOF\n",
-		       dn);
-		goto out_free_fifo;
-	}
-	memset(msic->fifo_virt, 0xff, MSIC_FIFO_SIZE_BYTES);
-
-	/* We rely on being able to stash a virq in a u16, so limit irqs to < 65536 */
-	msic->irq_domain = irq_domain_add_nomap(dn, 65536, &msic_host_ops, msic);
-	if (!msic->irq_domain) {
-		printk(KERN_ERR "axon_msi: couldn't allocate irq_domain for %pOF\n",
-		       dn);
-		goto out_free_fifo;
-	}
-
-	irq_set_handler_data(virq, msic);
-	irq_set_chained_handler(virq, axon_msi_cascade);
-	pr_devel("axon_msi: irq 0x%x setup for axon_msi\n", virq);
-
-	/* Enable the MSIC hardware */
-	msic_dcr_write(msic, MSIC_BASE_ADDR_HI_REG, msic->fifo_phys >> 32);
-	msic_dcr_write(msic, MSIC_BASE_ADDR_LO_REG,
-				  msic->fifo_phys & 0xFFFFFFFF);
-	msic_dcr_write(msic, MSIC_CTRL_REG,
-			MSIC_CTRL_IRQ_ENABLE | MSIC_CTRL_ENABLE |
-			MSIC_CTRL_FIFO_SIZE);
-
-	msic->read_offset = dcr_read(msic->dcr_host, MSIC_WRITE_OFFSET_REG)
-				& MSIC_FIFO_SIZE_MASK;
-
-	dev_set_drvdata(&device->dev, msic);
-
-	cell_pci_controller_ops.setup_msi_irqs = axon_msi_setup_msi_irqs;
-	cell_pci_controller_ops.teardown_msi_irqs = axon_msi_teardown_msi_irqs;
-
-	axon_msi_debug_setup(dn, msic);
-
-	printk(KERN_DEBUG "axon_msi: setup MSIC on %pOF\n", dn);
-
-	return 0;
-
-out_free_fifo:
-	dma_free_coherent(&device->dev, MSIC_FIFO_SIZE_BYTES, msic->fifo_virt,
-			  msic->fifo_phys);
-out_free_msic:
-	kfree(msic);
-out:
-
-	return -1;
-}
-
-static const struct of_device_id axon_msi_device_id[] = {
-	{
-		.compatible	= "ibm,axon-msic"
-	},
-	{}
-};
-
-static struct platform_driver axon_msi_driver = {
-	.probe		= axon_msi_probe,
-	.shutdown	= axon_msi_shutdown,
-	.driver = {
-		.name = "axon-msi",
-		.of_match_table = axon_msi_device_id,
-	},
-};
-
-static int __init axon_msi_init(void)
-{
-	return platform_driver_register(&axon_msi_driver);
-}
-subsys_initcall(axon_msi_init);
-
-
-#ifdef DEBUG
-static int msic_set(void *data, u64 val)
-{
-	struct axon_msic *msic = data;
-	out_le32(msic->trigger, val);
-	return 0;
-}
-
-static int msic_get(void *data, u64 *val)
-{
-	*val = 0;
-	return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(fops_msic, msic_get, msic_set, "%llu\n");
-
-void axon_msi_debug_setup(struct device_node *dn, struct axon_msic *msic)
-{
-	char name[8];
-	struct resource res;
-
-	if (of_address_to_resource(dn, 0, &res)) {
-		pr_devel("axon_msi: couldn't get reg property\n");
-		return;
-	}
-
-	msic->trigger = ioremap(res.start, 0x4);
-	if (!msic->trigger) {
-		pr_devel("axon_msi: ioremap failed\n");
-		return;
-	}
-
-	snprintf(name, sizeof(name), "msic_%d", of_node_to_nid(dn));
-
-	debugfs_create_file(name, 0600, arch_debugfs_dir, msic, &fops_msic);
-}
-#endif /* DEBUG */

arch/powerpc/platforms/cell/cbe_powerbutton.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * driver for powerbutton on IBM cell blades
- *
- * (C) Copyright IBM Corp. 2005-2008
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#include <linux/input.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <asm/pmi.h>
-
-static struct input_dev *button_dev;
-static struct platform_device *button_pdev;
-
-static void cbe_powerbutton_handle_pmi(pmi_message_t pmi_msg)
-{
-	BUG_ON(pmi_msg.type != PMI_TYPE_POWER_BUTTON);
-
-	input_report_key(button_dev, KEY_POWER, 1);
-	input_sync(button_dev);
-	input_report_key(button_dev, KEY_POWER, 0);
-	input_sync(button_dev);
-}
-
-static struct pmi_handler cbe_pmi_handler = {
-	.type			= PMI_TYPE_POWER_BUTTON,
-	.handle_pmi_message	= cbe_powerbutton_handle_pmi,
-};
-
-static int __init cbe_powerbutton_init(void)
-{
-	int ret = 0;
-	struct input_dev *dev;
-
-	if (!of_machine_is_compatible("IBM,CBPLUS-1.0")) {
-		printk(KERN_ERR "%s: Not a cell blade.\n", __func__);
-		ret = -ENODEV;
-		goto out;
-	}
-
-	dev = input_allocate_device();
-	if (!dev) {
-		ret = -ENOMEM;
-		printk(KERN_ERR "%s: Not enough memory.\n", __func__);
-		goto out;
-	}
-
-	set_bit(EV_KEY, dev->evbit);
-	set_bit(KEY_POWER, dev->keybit);
-
-	dev->name = "Power Button";
-	dev->id.bustype = BUS_HOST;
-
-	/* this makes the button look like an acpi power button
-	 * no clue whether anyone relies on that though */
-	dev->id.product = 0x02;
-	dev->phys = "LNXPWRBN/button/input0";
-
-	button_pdev = platform_device_register_simple("power_button", 0, NULL, 0);
-	if (IS_ERR(button_pdev)) {
-		ret = PTR_ERR(button_pdev);
-		goto out_free_input;
-	}
-
-	dev->dev.parent = &button_pdev->dev;
-	ret = input_register_device(dev);
-	if (ret) {
-		printk(KERN_ERR "%s: Failed to register device\n", __func__);
-		goto out_free_pdev;
-	}
-
-	button_dev = dev;
-
-	ret = pmi_register_handler(&cbe_pmi_handler);
-	if (ret) {
-		printk(KERN_ERR "%s: Failed to register with pmi.\n", __func__);
-		goto out_free_pdev;
-	}
-
-	goto out;
-
-out_free_pdev:
-	platform_device_unregister(button_pdev);
-out_free_input:
-	input_free_device(dev);
-out:
-	return ret;
-}
-
-static void __exit cbe_powerbutton_exit(void)
-{
-	pmi_unregister_handler(&cbe_pmi_handler);
-	platform_device_unregister(button_pdev);
-	input_free_device(button_dev);
-}
-
-module_init(cbe_powerbutton_init);
-module_exit(cbe_powerbutton_exit);
-
-MODULE_DESCRIPTION("Driver for powerbutton on IBM cell blades");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christian Krafft <[e-mail]>");

arch/powerpc/platforms/cell/cbe_regs.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * cbe_regs.c
- *
- * Accessor routines for the various MMIO register blocks of the CBE
- *
- * (c) 2006 Benjamin Herrenschmidt <[e-mail]>, IBM Corp.
- */
-
-#include <linux/percpu.h>
-#include <linux/types.h>
-#include <linux/export.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/pgtable.h>
-
-#include <asm/io.h>
-#include <asm/ptrace.h>
-#include <asm/cell-regs.h>
-
-/*
- * Current implementation uses "cpu" nodes. We build our own mapping
- * array of cpu numbers to cpu nodes locally for now to allow interrupt
- * time code to have a fast path rather than call of_get_cpu_node(). If
- * we implement cpu hotplug, we'll have to install an appropriate notifier
- * in order to release references to the cpu going away
- */
-static struct cbe_regs_map
-{
-	struct device_node *cpu_node;
-	struct device_node *be_node;
-	struct cbe_pmd_regs __iomem *pmd_regs;
-	struct cbe_iic_regs __iomem *iic_regs;
-	struct cbe_mic_tm_regs __iomem *mic_tm_regs;
-	struct cbe_pmd_shadow_regs pmd_shadow_regs;
-} cbe_regs_maps[MAX_CBE];
-static int cbe_regs_map_count;
-
-static struct cbe_thread_map
-{
-	struct device_node *cpu_node;
-	struct device_node *be_node;
-	struct cbe_regs_map *regs;
-	unsigned int thread_id;
-	unsigned int cbe_id;
-} cbe_thread_map[NR_CPUS];
-
-static cpumask_t cbe_local_mask[MAX_CBE] = { [0 ... MAX_CBE-1] = {CPU_BITS_NONE} };
-static cpumask_t cbe_first_online_cpu = { CPU_BITS_NONE };
-
-static struct cbe_regs_map *cbe_find_map(struct device_node *np)
-{
-	int i;
-	struct device_node *tmp_np;
-
-	if (!of_node_is_type(np, "spe")) {
-		for (i = 0; i < cbe_regs_map_count; i++)
-			if (cbe_regs_maps[i].cpu_node == np ||
-			    cbe_regs_maps[i].be_node == np)
-				return &cbe_regs_maps[i];
-		return NULL;
-	}
-
-	if (np->data)
-		return np->data;
-
-	/* walk up path until cpu or be node was found */
-	tmp_np = np;
-	do {
-		tmp_np = tmp_np->parent;
-		/* on a correct devicetree we wont get up to root */
-		BUG_ON(!tmp_np);
-	} while (!of_node_is_type(tmp_np, "cpu") ||
-		 !of_node_is_type(tmp_np, "be"));
-
-	np->data = cbe_find_map(tmp_np);
-
-	return np->data;
-}
-
-struct cbe_pmd_regs __iomem *cbe_get_pmd_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return map->pmd_regs;
-}
-EXPORT_SYMBOL_GPL(cbe_get_pmd_regs);
-
-struct cbe_pmd_regs __iomem *cbe_get_cpu_pmd_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return map->pmd_regs;
-}
-EXPORT_SYMBOL_GPL(cbe_get_cpu_pmd_regs);
-
-struct cbe_pmd_shadow_regs *cbe_get_pmd_shadow_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return &map->pmd_shadow_regs;
-}
-
-struct cbe_pmd_shadow_regs *cbe_get_cpu_pmd_shadow_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return &map->pmd_shadow_regs;
-}
-
-struct cbe_iic_regs __iomem *cbe_get_iic_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return map->iic_regs;
-}
-
-struct cbe_iic_regs __iomem *cbe_get_cpu_iic_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return map->iic_regs;
-}
-
-struct cbe_mic_tm_regs __iomem *cbe_get_mic_tm_regs(struct device_node *np)
-{
-	struct cbe_regs_map *map = cbe_find_map(np);
-	if (map == NULL)
-		return NULL;
-	return map->mic_tm_regs;
-}
-
-struct cbe_mic_tm_regs __iomem *cbe_get_cpu_mic_tm_regs(int cpu)
-{
-	struct cbe_regs_map *map = cbe_thread_map[cpu].regs;
-	if (map == NULL)
-		return NULL;
-	return map->mic_tm_regs;
-}
-EXPORT_SYMBOL_GPL(cbe_get_cpu_mic_tm_regs);
-
-u32 cbe_get_hw_thread_id(int cpu)
-{
-	return cbe_thread_map[cpu].thread_id;
-}
-EXPORT_SYMBOL_GPL(cbe_get_hw_thread_id);
-
-u32 cbe_cpu_to_node(int cpu)
-{
-	return cbe_thread_map[cpu].cbe_id;
-}
-EXPORT_SYMBOL_GPL(cbe_cpu_to_node);
-
-u32 cbe_node_to_cpu(int node)
-{
-	return cpumask_first(&cbe_local_mask[node]);
-
-}
-EXPORT_SYMBOL_GPL(cbe_node_to_cpu);
-
-static struct device_node *__init cbe_get_be_node(int cpu_id)
-{
-	struct device_node *np;
-
-	for_each_node_by_type (np, "be") {
-		int len,i;
-		const phandle *cpu_handle;
-
-		cpu_handle = of_get_property(np, "cpus", &len);
-
-		/*
-		 * the CAB SLOF tree is non compliant, so we just assume
-		 * there is only one node
-		 */
-		if (WARN_ON_ONCE(!cpu_handle))
-			return np;
-
-		for (i = 0; i < len; i++) {
-			struct device_node *ch_np = of_find_node_by_phandle(cpu_handle[i]);
-			struct device_node *ci_np = of_get_cpu_node(cpu_id, NULL);
-
-			of_node_put(ch_np);
-			of_node_put(ci_np);
-
-			if (ch_np == ci_np)
-				return np;
-		}
-	}
-
-	return NULL;
-}
-
-static void __init cbe_fill_regs_map(struct cbe_regs_map *map)
-{
-	if(map->be_node) {
-		struct device_node *be, *np, *parent_np;
-
-		be = map->be_node;
-
-		for_each_node_by_type(np, "pervasive") {
-			parent_np = of_get_parent(np);
-			if (parent_np == be)
-				map->pmd_regs = of_iomap(np, 0);
-			of_node_put(parent_np);
-		}
-
-		for_each_node_by_type(np, "CBEA-Internal-Interrupt-Controller") {
-			parent_np = of_get_parent(np);
-			if (parent_np == be)
-				map->iic_regs = of_iomap(np, 2);
-			of_node_put(parent_np);
-		}
-
-		for_each_node_by_type(np, "mic-tm") {
-			parent_np = of_get_parent(np);
-			if (parent_np == be)
-				map->mic_tm_regs = of_iomap(np, 0);
-			of_node_put(parent_np);
-		}
-	} else {
-		struct device_node *cpu;
-		/* That hack must die die die ! */
-		const struct address_prop {
-			unsigned long address;
-			unsigned int len;
-		} __attribute__((packed)) *prop;
-
-		cpu = map->cpu_node;
-
-		prop = of_get_property(cpu, "pervasive", NULL);
-		if (prop != NULL)
-			map->pmd_regs = ioremap(prop->address, prop->len);
-
-		prop = of_get_property(cpu, "iic", NULL);
-		if (prop != NULL)
-			map->iic_regs = ioremap(prop->address, prop->len);
-
-		prop = of_get_property(cpu, "mic-tm", NULL);
-		if (prop != NULL)
-			map->mic_tm_regs = ioremap(prop->address, prop->len);
-	}
-}
-
-
-void __init cbe_regs_init(void)
-{
-	int i;
-	unsigned int thread_id;
-	struct device_node *cpu;
-
-	/* Build local fast map of CPUs */
-	for_each_possible_cpu(i) {
-		cbe_thread_map[i].cpu_node = of_get_cpu_node(i, &thread_id);
-		cbe_thread_map[i].be_node = cbe_get_be_node(i);
-		cbe_thread_map[i].thread_id = thread_id;
-	}
-
-	/* Find maps for each device tree CPU */
-	for_each_node_by_type(cpu, "cpu") {
-		struct cbe_regs_map *map;
-		unsigned int cbe_id;
-
-		cbe_id = cbe_regs_map_count++;
-		map = &cbe_regs_maps[cbe_id];
-
-		if (cbe_regs_map_count > MAX_CBE) {
-			printk(KERN_ERR "cbe_regs: More BE chips than supported"
-			       "!\n");
-			cbe_regs_map_count--;
-			of_node_put(cpu);
-			return;
-		}
-		of_node_put(map->cpu_node);
-		map->cpu_node = of_node_get(cpu);
-
-		for_each_possible_cpu(i) {
-			struct cbe_thread_map *thread = &cbe_thread_map[i];
-
-			if (thread->cpu_node == cpu) {
-				thread->regs = map;
-				thread->cbe_id = cbe_id;
-				map->be_node = thread->be_node;
-				cpumask_set_cpu(i, &cbe_local_mask[cbe_id]);
-				if(thread->thread_id == 0)
-					cpumask_set_cpu(i, &cbe_first_online_cpu);
-			}
-		}
-
-		cbe_fill_regs_map(map);
-	}
-}
-

arch/powerpc/platforms/cell/cbe_thermal.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * thermal support for the cell processor
- *
- * This module adds some sysfs attributes to cpu and spu nodes.
- * Base for measurements are the digital thermal sensors (DTS)
- * located on the chip.
- * The accuracy is 2 degrees, starting from 65 up to 125 degrees celsius
- * The attributes can be found under
- * /sys/devices/system/cpu/cpuX/thermal
- * /sys/devices/system/spu/spuX/thermal
- *
- * The following attributes are added for each node:
- * temperature:
- *	contains the current temperature measured by the DTS
- * throttle_begin:
- *	throttling begins when temperature is greater or equal to
- *	throttle_begin. Setting this value to 125 prevents throttling.
- * throttle_end:
- *	throttling is being ceased, if the temperature is lower than
- *	throttle_end. Due to a delay between applying throttling and
- *	a reduced temperature this value should be less than throttle_begin.
- *	A value equal to throttle_begin provides only a very little hysteresis.
- * throttle_full_stop:
- *	If the temperatrue is greater or equal to throttle_full_stop,
- *	full throttling is applied to the cpu or spu. This value should be
- *	greater than throttle_begin and throttle_end. Setting this value to
- *	65 prevents the unit from running code at all.
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/cpu.h>
-#include <linux/stringify.h>
-#include <asm/spu.h>
-#include <asm/io.h>
-#include <asm/cell-regs.h>
-
-#include "spu_priv1_mmio.h"
-
-#define TEMP_MIN 65
-#define TEMP_MAX 125
-
-#define DEVICE_PREFIX_ATTR(_prefix,_name,_mode)			\
-struct device_attribute attr_ ## _prefix ## _ ## _name = {	\
-	.attr = { .name = __stringify(_name), .mode = _mode },	\
-	.show	= _prefix ## _show_ ## _name,			\
-	.store	= _prefix ## _store_ ## _name,			\
-};
-
-static inline u8 reg_to_temp(u8 reg_value)
-{
-	return ((reg_value & 0x3f) << 1) + TEMP_MIN;
-}
-
-static inline u8 temp_to_reg(u8 temp)
-{
-	return ((temp - TEMP_MIN) >> 1) & 0x3f;
-}
-
-static struct cbe_pmd_regs __iomem *get_pmd_regs(struct device *dev)
-{
-	struct spu *spu;
-
-	spu = container_of(dev, struct spu, dev);
-
-	return cbe_get_pmd_regs(spu_devnode(spu));
-}
-
-/* returns the value for a given spu in a given register */
-static u8 spu_read_register_value(struct device *dev, union spe_reg __iomem *reg)
-{
-	union spe_reg value;
-	struct spu *spu;
-
-	spu = container_of(dev, struct spu, dev);
-	value.val = in_be64(&reg->val);
-
-	return value.spe[spu->spe_id];
-}
-
-static ssize_t spu_show_temp(struct device *dev, struct device_attribute *attr,
-			char *buf)
-{
-	u8 value;
-	struct cbe_pmd_regs __iomem *pmd_regs;
-
-	pmd_regs = get_pmd_regs(dev);
-
-	value = spu_read_register_value(dev, &pmd_regs->ts_ctsr1);
-
-	return sprintf(buf, "%d\n", reg_to_temp(value));
-}
-
-static ssize_t show_throttle(struct cbe_pmd_regs __iomem *pmd_regs, char *buf, int pos)
-{
-	u64 value;
-
-	value = in_be64(&pmd_regs->tm_tpr.val);
-	/* access the corresponding byte */
-	value >>= pos;
-	value &= 0x3F;
-
-	return sprintf(buf, "%d\n", reg_to_temp(value));
-}
-
-static ssize_t store_throttle(struct cbe_pmd_regs __iomem *pmd_regs, const char *buf, size_t size, int pos)
-{
-	u64 reg_value;
-	unsigned int temp;
-	u64 new_value;
-	int ret;
-
-	ret = sscanf(buf, "%u", &temp);
-
-	if (ret != 1 || temp < TEMP_MIN || temp > TEMP_MAX)
-		return -EINVAL;
-
-	new_value = temp_to_reg(temp);
-
-	reg_value = in_be64(&pmd_regs->tm_tpr.val);
-
-	/* zero out bits for new value */
-	reg_value &= ~(0xffull << pos);
-	/* set bits to new value */
-	reg_value |= new_value << pos;
-
-	out_be64(&pmd_regs->tm_tpr.val, reg_value);
-	return size;
-}
-
-static ssize_t spu_show_throttle_end(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return show_throttle(get_pmd_regs(dev), buf, 0);
-}
-
-static ssize_t spu_show_throttle_begin(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return show_throttle(get_pmd_regs(dev), buf, 8);
-}
-
-static ssize_t spu_show_throttle_full_stop(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return show_throttle(get_pmd_regs(dev), buf, 16);
-}
-
-static ssize_t spu_store_throttle_end(struct device *dev,
-			struct device_attribute *attr, const char *buf, size_t size)
-{
-	return store_throttle(get_pmd_regs(dev), buf, size, 0);
-}
-
-static ssize_t spu_store_throttle_begin(struct device *dev,
-			struct device_attribute *attr, const char *buf, size_t size)
-{
-	return store_throttle(get_pmd_regs(dev), buf, size, 8);
-}
-
-static ssize_t spu_store_throttle_full_stop(struct device *dev,
-			struct device_attribute *attr, const char *buf, size_t size)
-{
-	return store_throttle(get_pmd_regs(dev), buf, size, 16);
-}
-
-static ssize_t ppe_show_temp(struct device *dev, char *buf, int pos)
-{
-	struct cbe_pmd_regs __iomem *pmd_regs;
-	u64 value;
-
-	pmd_regs = cbe_get_cpu_pmd_regs(dev->id);
-	value = in_be64(&pmd_regs->ts_ctsr2);
-
-	value = (value >> pos) & 0x3f;
-
-	return sprintf(buf, "%d\n", reg_to_temp(value));
-}
-
-
-/* shows the temperature of the DTS on the PPE,
- * located near the linear thermal sensor */
-static ssize_t ppe_show_temp0(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return ppe_show_temp(dev, buf, 32);
-}
-
-/* shows the temperature of the second DTS on the PPE */
-static ssize_t ppe_show_temp1(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return ppe_show_temp(dev, buf, 0);
-}
-
-static ssize_t ppe_show_throttle_end(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return show_throttle(cbe_get_cpu_pmd_regs(dev->id), buf, 32);
-}
-
-static ssize_t ppe_show_throttle_begin(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return show_throttle(cbe_get_cpu_pmd_regs(dev->id), buf, 40);
-}
-
-static ssize_t ppe_show_throttle_full_stop(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	return show_throttle(cbe_get_cpu_pmd_regs(dev->id), buf, 48);
-}
-
-static ssize_t ppe_store_throttle_end(struct device *dev,
-			struct device_attribute *attr, const char *buf, size_t size)
-{
-	return store_throttle(cbe_get_cpu_pmd_regs(dev->id), buf, size, 32);
-}
-
-static ssize_t ppe_store_throttle_begin(struct device *dev,
-			struct device_attribute *attr, const char *buf, size_t size)
-{
-	return store_throttle(cbe_get_cpu_pmd_regs(dev->id), buf, size, 40);
-}
-
-static ssize_t ppe_store_throttle_full_stop(struct device *dev,
-			struct device_attribute *attr, const char *buf, size_t size)
-{
-	return store_throttle(cbe_get_cpu_pmd_regs(dev->id), buf, size, 48);
-}
-
-
-static struct device_attribute attr_spu_temperature = {
-	.attr = {.name = "temperature", .mode = 0400 },
-	.show = spu_show_temp,
-};
-
-static DEVICE_PREFIX_ATTR(spu, throttle_end, 0600);
-static DEVICE_PREFIX_ATTR(spu, throttle_begin, 0600);
-static DEVICE_PREFIX_ATTR(spu, throttle_full_stop, 0600);
-
-
-static struct attribute *spu_attributes[] = {
-	&attr_spu_temperature.attr,
-	&attr_spu_throttle_end.attr,
-	&attr_spu_throttle_begin.attr,
-	&attr_spu_throttle_full_stop.attr,
-	NULL,
-};
-
-static const struct attribute_group spu_attribute_group = {
-	.name	= "thermal",
-	.attrs	= spu_attributes,
-};
-
-static struct device_attribute attr_ppe_temperature0 = {
-	.attr = {.name = "temperature0", .mode = 0400 },
-	.show = ppe_show_temp0,
-};
-
-static struct device_attribute attr_ppe_temperature1 = {
-	.attr = {.name = "temperature1", .mode = 0400 },
-	.show = ppe_show_temp1,
-};
-
-static DEVICE_PREFIX_ATTR(ppe, throttle_end, 0600);
-static DEVICE_PREFIX_ATTR(ppe, throttle_begin, 0600);
-static DEVICE_PREFIX_ATTR(ppe, throttle_full_stop, 0600);
-
-static struct attribute *ppe_attributes[] = {
-	&attr_ppe_temperature0.attr,
-	&attr_ppe_temperature1.attr,
-	&attr_ppe_throttle_end.attr,
-	&attr_ppe_throttle_begin.attr,
-	&attr_ppe_throttle_full_stop.attr,
-	NULL,
-};
-
-static struct attribute_group ppe_attribute_group = {
-	.name	= "thermal",
-	.attrs	= ppe_attributes,
-};
-
-/*
- * initialize throttling with default values
- */
-static int __init init_default_values(void)
-{
-	int cpu;
-	struct cbe_pmd_regs __iomem *pmd_regs;
-	struct device *dev;
-	union ppe_spe_reg tpr;
-	union spe_reg str1;
-	u64 str2;
-	union spe_reg cr1;
-	u64 cr2;
-
-	/* TPR defaults */
-	/* ppe
-	 *	1F - no full stop
-	 *	08 - dynamic throttling starts if over 80 degrees
-	 *	03 - dynamic throttling ceases if below 70 degrees */
-	tpr.ppe = 0x1F0803;
-	/* spe
-	 *	10 - full stopped when over 96 degrees
-	 *	08 - dynamic throttling starts if over 80 degrees
-	 *	03 - dynamic throttling ceases if below 70 degrees
-	 */
-	tpr.spe = 0x100803;
-
-	/* STR defaults */
-	/* str1
-	 *	10 - stop 16 of 32 cycles
-	 */
-	str1.val = 0x1010101010101010ull;
-	/* str2
-	 *	10 - stop 16 of 32 cycles
-	 */
-	str2 = 0x10;
-
-	/* CR defaults */
-	/* cr1
-	 *	4 - normal operation
-	 */
-	cr1.val = 0x0404040404040404ull;
-	/* cr2
-	 *	4 - normal operation
-	 */
-	cr2 = 0x04;
-
-	for_each_possible_cpu (cpu) {
-		pr_debug("processing cpu %d\n", cpu);
-		dev = get_cpu_device(cpu);
-
-		if (!dev) {
-			pr_info("invalid dev pointer for cbe_thermal\n");
-			return -EINVAL;
-		}
-
-		pmd_regs = cbe_get_cpu_pmd_regs(dev->id);
-
-		if (!pmd_regs) {
-			pr_info("invalid CBE regs pointer for cbe_thermal\n");
-			return -EINVAL;
-		}
-
-		out_be64(&pmd_regs->tm_str2, str2);
-		out_be64(&pmd_regs->tm_str1.val, str1.val);
-		out_be64(&pmd_regs->tm_tpr.val, tpr.val);
-		out_be64(&pmd_regs->tm_cr1.val, cr1.val);
-		out_be64(&pmd_regs->tm_cr2, cr2);
-	}
-
-	return 0;
-}
-
-
-static int __init thermal_init(void)
-{
-	int rc = init_default_values();
-
-	if (rc == 0) {
-		spu_add_dev_attr_group(&spu_attribute_group);
-		cpu_add_dev_attr_group(&ppe_attribute_group);
-	}
-
-	return rc;
-}
-module_init(thermal_init);
-
-static void __exit thermal_exit(void)
-{
-	spu_remove_dev_attr_group(&spu_attribute_group);
-	cpu_remove_dev_attr_group(&ppe_attribute_group);
-}
-module_exit(thermal_exit);
-
-MODULE_DESCRIPTION("Cell processor thermal driver");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christian Krafft <[e-mail]>");
-

arch/powerpc/platforms/cell/cell.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Cell Platform common data structures
- *
- * Copyright 2015, Daniel Axtens, IBM Corporation
- */
-
-#ifndef CELL_H
-#define CELL_H
-
-#include <asm/pci-bridge.h>
-
-extern struct pci_controller_ops cell_pci_controller_ops;
-
-#endif

arch/powerpc/platforms/cell/cpufreq_spudemand.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * spu aware cpufreq governor for the cell processor
- *
- * © Copyright IBM Corporation 2006-2008
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#include <linux/cpufreq.h>
-#include <linux/sched.h>
-#include <linux/sched/loadavg.h>
-#include <linux/module.h>
-#include <linux/timer.h>
-#include <linux/workqueue.h>
-#include <linux/atomic.h>
-#include <asm/machdep.h>
-#include <asm/spu.h>
-
-#define POLL_TIME	100000		/* in µs */
-#define EXP		753		/* exp(-1) in fixed-point */
-
-struct spu_gov_info_struct {
-	unsigned long busy_spus;	/* fixed-point */
-	struct cpufreq_policy *policy;
-	struct delayed_work work;
-	unsigned int poll_int;		/* µs */
-};
-static DEFINE_PER_CPU(struct spu_gov_info_struct, spu_gov_info);
-
-static int calc_freq(struct spu_gov_info_struct *info)
-{
-	int cpu;
-	int busy_spus;
-
-	cpu = info->policy->cpu;
-	busy_spus = atomic_read(&cbe_spu_info[cpu_to_node(cpu)].busy_spus);
-
-	info->busy_spus = calc_load(info->busy_spus, EXP, busy_spus * FIXED_1);
-	pr_debug("cpu %d: busy_spus=%d, info->busy_spus=%ld\n",
-			cpu, busy_spus, info->busy_spus);
-
-	return info->policy->max * info->busy_spus / FIXED_1;
-}
-
-static void spu_gov_work(struct work_struct *work)
-{
-	struct spu_gov_info_struct *info;
-	int delay;
-	unsigned long target_freq;
-
-	info = container_of(work, struct spu_gov_info_struct, work.work);
-
-	/* after cancel_delayed_work_sync we unset info->policy */
-	BUG_ON(info->policy == NULL);
-
-	target_freq = calc_freq(info);
-	__cpufreq_driver_target(info->policy, target_freq, CPUFREQ_RELATION_H);
-
-	delay = usecs_to_jiffies(info->poll_int);
-	schedule_delayed_work_on(info->policy->cpu, &info->work, delay);
-}
-
-static void spu_gov_init_work(struct spu_gov_info_struct *info)
-{
-	int delay = usecs_to_jiffies(info->poll_int);
-	INIT_DEFERRABLE_WORK(&info->work, spu_gov_work);
-	schedule_delayed_work_on(info->policy->cpu, &info->work, delay);
-}
-
-static void spu_gov_cancel_work(struct spu_gov_info_struct *info)
-{
-	cancel_delayed_work_sync(&info->work);
-}
-
-static int spu_gov_start(struct cpufreq_policy *policy)
-{
-	unsigned int cpu = policy->cpu;
-	struct spu_gov_info_struct *info = &per_cpu(spu_gov_info, cpu);
-	struct spu_gov_info_struct *affected_info;
-	int i;
-
-	if (!cpu_online(cpu)) {
-		printk(KERN_ERR "cpu %d is not online\n", cpu);
-		return -EINVAL;
-	}
-
-	if (!policy->cur) {
-		printk(KERN_ERR "no cpu specified in policy\n");
-		return -EINVAL;
-	}
-
-	/* initialize spu_gov_info for all affected cpus */
-	for_each_cpu(i, policy->cpus) {
-		affected_info = &per_cpu(spu_gov_info, i);
-		affected_info->policy = policy;
-	}
-
-	info->poll_int = POLL_TIME;
-
-	/* setup timer */
-	spu_gov_init_work(info);
-
-	return 0;
-}
-
-static void spu_gov_stop(struct cpufreq_policy *policy)
-{
-	unsigned int cpu = policy->cpu;
-	struct spu_gov_info_struct *info = &per_cpu(spu_gov_info, cpu);
-	int i;
-
-	/* cancel timer */
-	spu_gov_cancel_work(info);
-
-	/* clean spu_gov_info for all affected cpus */
-	for_each_cpu (i, policy->cpus) {
-		info = &per_cpu(spu_gov_info, i);
-		info->policy = NULL;
-	}
-}
-
-static struct cpufreq_governor spu_governor = {
-	.name = "spudemand",
-	.start = spu_gov_start,
-	.stop = spu_gov_stop,
-	.owner = THIS_MODULE,
-};
-cpufreq_governor_init(spu_governor);
-cpufreq_governor_exit(spu_governor);
-
-MODULE_DESCRIPTION("SPU-aware cpufreq governor for the cell processor");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christian Krafft <[e-mail]>");

arch/powerpc/platforms/cell/interrupt.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Cell Internal Interrupt Controller
- *
- * Copyright (C) 2006 Benjamin Herrenschmidt ([e-mail])
- *                    IBM, Corp.
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- *
- * Author: Arnd Bergmann <[e-mail]>
- *
- * TODO:
- * - Fix various assumptions related to HW CPU numbers vs. linux CPU numbers
- *   vs node numbers in the setup code
- * - Implement proper handling of maxcpus=1/2 (that is, routing of irqs from
- *   a non-active node to the active node)
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/export.h>
-#include <linux/percpu.h>
-#include <linux/types.h>
-#include <linux/ioport.h>
-#include <linux/kernel_stat.h>
-#include <linux/pgtable.h>
-#include <linux/of_address.h>
-
-#include <asm/io.h>
-#include <asm/ptrace.h>
-#include <asm/machdep.h>
-#include <asm/cell-regs.h>
-
-#include "interrupt.h"
-
-struct iic {
-	struct cbe_iic_thread_regs __iomem *regs;
-	u8 target_id;
-	u8 eoi_stack[16];
-	int eoi_ptr;
-	struct device_node *node;
-};
-
-static DEFINE_PER_CPU(struct iic, cpu_iic);
-#define IIC_NODE_COUNT	2
-static struct irq_domain *iic_host;
-
-/* Convert between "pending" bits and hw irq number */
-static irq_hw_number_t iic_pending_to_hwnum(struct cbe_iic_pending_bits bits)
-{
-	unsigned char unit = bits.source & 0xf;
-	unsigned char node = bits.source >> 4;
-	unsigned char class = bits.class & 3;
-
-	/* Decode IPIs */
-	if (bits.flags & CBE_IIC_IRQ_IPI)
-		return IIC_IRQ_TYPE_IPI | (bits.prio >> 4);
-	else
-		return (node << IIC_IRQ_NODE_SHIFT) | (class << 4) | unit;
-}
-
-static void iic_mask(struct irq_data *d)
-{
-}
-
-static void iic_unmask(struct irq_data *d)
-{
-}
-
-static void iic_eoi(struct irq_data *d)
-{
-	struct iic *iic = this_cpu_ptr(&cpu_iic);
-	out_be64(&iic->regs->prio, iic->eoi_stack[--iic->eoi_ptr]);
-	BUG_ON(iic->eoi_ptr < 0);
-}
-
-static struct irq_chip iic_chip = {
-	.name = "CELL-IIC",
-	.irq_mask = iic_mask,
-	.irq_unmask = iic_unmask,
-	.irq_eoi = iic_eoi,
-};
-
-
-static void iic_ioexc_eoi(struct irq_data *d)
-{
-}
-
-static void iic_ioexc_cascade(struct irq_desc *desc)
-{
-	struct irq_chip *chip = irq_desc_get_chip(desc);
-	struct cbe_iic_regs __iomem *node_iic =
-		(void __iomem *)irq_desc_get_handler_data(desc);
-	unsigned int irq = irq_desc_get_irq(desc);
-	unsigned int base = (irq & 0xffffff00) | IIC_IRQ_TYPE_IOEXC;
-	unsigned long bits, ack;
-	int cascade;
-
-	for (;;) {
-		bits = in_be64(&node_iic->iic_is);
-		if (bits == 0)
-			break;
-		/* pre-ack edge interrupts */
-		ack = bits & IIC_ISR_EDGE_MASK;
-		if (ack)
-			out_be64(&node_iic->iic_is, ack);
-		/* handle them */
-		for (cascade = 63; cascade >= 0; cascade--)
-			if (bits & (0x8000000000000000UL >> cascade))
-				generic_handle_domain_irq(iic_host,
-							  base | cascade);
-		/* post-ack level interrupts */
-		ack = bits & ~IIC_ISR_EDGE_MASK;
-		if (ack)
-			out_be64(&node_iic->iic_is, ack);
-	}
-	chip->irq_eoi(&desc->irq_data);
-}
-
-
-static struct irq_chip iic_ioexc_chip = {
-	.name = "CELL-IOEX",
-	.irq_mask = iic_mask,
-	.irq_unmask = iic_unmask,
-	.irq_eoi = iic_ioexc_eoi,
-};
-
-/* Get an IRQ number from the pending state register of the IIC */
-static unsigned int iic_get_irq(void)
-{
-	struct cbe_iic_pending_bits pending;
-	struct iic *iic;
-	unsigned int virq;
-
-	iic = this_cpu_ptr(&cpu_iic);
-	*(unsigned long *) &pending =
-		in_be64((u64 __iomem *) &iic->regs->pending_destr);
-	if (!(pending.flags & CBE_IIC_IRQ_VALID))
-		return 0;
-	virq = irq_linear_revmap(iic_host, iic_pending_to_hwnum(pending));
-	if (!virq)
-		return 0;
-	iic->eoi_stack[++iic->eoi_ptr] = pending.prio;
-	BUG_ON(iic->eoi_ptr > 15);
-	return virq;
-}
-
-void iic_setup_cpu(void)
-{
-	out_be64(&this_cpu_ptr(&cpu_iic)->regs->prio, 0xff);
-}
-
-u8 iic_get_target_id(int cpu)
-{
-	return per_cpu(cpu_iic, cpu).target_id;
-}
-
-EXPORT_SYMBOL_GPL(iic_get_target_id);
-
-#ifdef CONFIG_SMP
-
-/* Use the highest interrupt priorities for IPI */
-static inline int iic_msg_to_irq(int msg)
-{
-	return IIC_IRQ_TYPE_IPI + 0xf - msg;
-}
-
-void iic_message_pass(int cpu, int msg)
-{
-	out_be64(&per_cpu(cpu_iic, cpu).regs->generate, (0xf - msg) << 4);
-}
-
-static void iic_request_ipi(int msg)
-{
-	int virq;
-
-	virq = irq_create_mapping(iic_host, iic_msg_to_irq(msg));
-	if (!virq) {
-		printk(KERN_ERR
-		       "iic: failed to map IPI %s\n", smp_ipi_name[msg]);
-		return;
-	}
-
-	/*
-	 * If smp_request_message_ipi encounters an error it will notify
-	 * the error.  If a message is not needed it will return non-zero.
-	 */
-	if (smp_request_message_ipi(virq, msg))
-		irq_dispose_mapping(virq);
-}
-
-void iic_request_IPIs(void)
-{
-	iic_request_ipi(PPC_MSG_CALL_FUNCTION);
-	iic_request_ipi(PPC_MSG_RESCHEDULE);
-	iic_request_ipi(PPC_MSG_TICK_BROADCAST);
-	iic_request_ipi(PPC_MSG_NMI_IPI);
-}
-
-#endif /* CONFIG_SMP */
-
-
-static int iic_host_match(struct irq_domain *h, struct device_node *node,
-			  enum irq_domain_bus_token bus_token)
-{
-	return of_device_is_compatible(node,
-				    "IBM,CBEA-Internal-Interrupt-Controller");
-}
-
-static int iic_host_map(struct irq_domain *h, unsigned int virq,
-			irq_hw_number_t hw)
-{
-	switch (hw & IIC_IRQ_TYPE_MASK) {
-	case IIC_IRQ_TYPE_IPI:
-		irq_set_chip_and_handler(virq, &iic_chip, handle_percpu_irq);
-		break;
-	case IIC_IRQ_TYPE_IOEXC:
-		irq_set_chip_and_handler(virq, &iic_ioexc_chip,
-					 handle_edge_eoi_irq);
-		break;
-	default:
-		irq_set_chip_and_handler(virq, &iic_chip, handle_edge_eoi_irq);
-	}
-	return 0;
-}
-
-static int iic_host_xlate(struct irq_domain *h, struct device_node *ct,
-			   const u32 *intspec, unsigned int intsize,
-			   irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-
-{
-	unsigned int node, ext, unit, class;
-	const u32 *val;
-
-	if (!of_device_is_compatible(ct,
-				     "IBM,CBEA-Internal-Interrupt-Controller"))
-		return -ENODEV;
-	if (intsize != 1)
-		return -ENODEV;
-	val = of_get_property(ct, "#interrupt-cells", NULL);
-	if (val == NULL || *val != 1)
-		return -ENODEV;
-
-	node = intspec[0] >> 24;
-	ext = (intspec[0] >> 16) & 0xff;
-	class = (intspec[0] >> 8) & 0xff;
-	unit = intspec[0] & 0xff;
-
-	/* Check if node is in supported range */
-	if (node > 1)
-		return -EINVAL;
-
-	/* Build up interrupt number, special case for IO exceptions */
-	*out_hwirq = (node << IIC_IRQ_NODE_SHIFT);
-	if (unit == IIC_UNIT_IIC && class == 1)
-		*out_hwirq |= IIC_IRQ_TYPE_IOEXC | ext;
-	else
-		*out_hwirq |= IIC_IRQ_TYPE_NORMAL |
-			(class << IIC_IRQ_CLASS_SHIFT) | unit;
-
-	/* Dummy flags, ignored by iic code */
-	*out_flags = IRQ_TYPE_EDGE_RISING;
-
-	return 0;
-}
-
-static const struct irq_domain_ops iic_host_ops = {
-	.match = iic_host_match,
-	.map = iic_host_map,
-	.xlate = iic_host_xlate,
-};
-
-static void __init init_one_iic(unsigned int hw_cpu, unsigned long addr,
-				struct device_node *node)
-{
-	/* XXX FIXME: should locate the linux CPU number from the HW cpu
-	 * number properly. We are lucky for now
-	 */
-	struct iic *iic = &per_cpu(cpu_iic, hw_cpu);
-
-	iic->regs = ioremap(addr, sizeof(struct cbe_iic_thread_regs));
-	BUG_ON(iic->regs == NULL);
-
-	iic->target_id = ((hw_cpu & 2) << 3) | ((hw_cpu & 1) ? 0xf : 0xe);
-	iic->eoi_stack[0] = 0xff;
-	iic->node = of_node_get(node);
-	out_be64(&iic->regs->prio, 0);
-
-	printk(KERN_INFO "IIC for CPU %d target id 0x%x : %pOF\n",
-	       hw_cpu, iic->target_id, node);
-}
-
-static int __init setup_iic(void)
-{
-	struct device_node *dn;
-	struct resource r0, r1;
-	unsigned int node, cascade, found = 0;
-	struct cbe_iic_regs __iomem *node_iic;
-	const u32 *np;
-
-	for_each_node_by_name(dn, "interrupt-controller") {
-		if (!of_device_is_compatible(dn,
-				     "IBM,CBEA-Internal-Interrupt-Controller"))
-			continue;
-		np = of_get_property(dn, "ibm,interrupt-server-ranges", NULL);
-		if (np == NULL) {
-			printk(KERN_WARNING "IIC: CPU association not found\n");
-			of_node_put(dn);
-			return -ENODEV;
-		}
-		if (of_address_to_resource(dn, 0, &r0) ||
-		    of_address_to_resource(dn, 1, &r1)) {
-			printk(KERN_WARNING "IIC: Can't resolve addresses\n");
-			of_node_put(dn);
-			return -ENODEV;
-		}
-		found++;
-		init_one_iic(np[0], r0.start, dn);
-		init_one_iic(np[1], r1.start, dn);
-
-		/* Setup cascade for IO exceptions. XXX cleanup tricks to get
-		 * node vs CPU etc...
-		 * Note that we configure the IIC_IRR here with a hard coded
-		 * priority of 1. We might want to improve that later.
-		 */
-		node = np[0] >> 1;
-		node_iic = cbe_get_cpu_iic_regs(np[0]);
-		cascade = node << IIC_IRQ_NODE_SHIFT;
-		cascade |= 1 << IIC_IRQ_CLASS_SHIFT;
-		cascade |= IIC_UNIT_IIC;
-		cascade = irq_create_mapping(iic_host, cascade);
-		if (!cascade)
-			continue;
-		/*
-		 * irq_data is a generic pointer that gets passed back
-		 * to us later, so the forced cast is fine.
-		 */
-		irq_set_handler_data(cascade, (void __force *)node_iic);
-		irq_set_chained_handler(cascade, iic_ioexc_cascade);
-		out_be64(&node_iic->iic_ir,
-			 (1 << 12)		/* priority */ |
-			 (node << 4)		/* dest node */ |
-			 IIC_UNIT_THREAD_0	/* route them to thread 0 */);
-		/* Flush pending (make sure it triggers if there is
-		 * anything pending
-		 */
-		out_be64(&node_iic->iic_is, 0xfffffffffffffffful);
-	}
-
-	if (found)
-		return 0;
-	else
-		return -ENODEV;
-}
-
-void __init iic_init_IRQ(void)
-{
-	/* Setup an irq host data structure */
-	iic_host = irq_domain_add_linear(NULL, IIC_SOURCE_COUNT, &iic_host_ops,
-					 NULL);
-	BUG_ON(iic_host == NULL);
-	irq_set_default_host(iic_host);
-
-	/* Discover and initialize iics */
-	if (setup_iic() < 0)
-		panic("IIC: Failed to initialize !\n");
-
-	/* Set master interrupt handling function */
-	ppc_md.get_irq = iic_get_irq;
-
-	/* Enable on current CPU */
-	iic_setup_cpu();
-}
-
-void iic_set_interrupt_routing(int cpu, int thread, int priority)
-{
-	struct cbe_iic_regs __iomem *iic_regs = cbe_get_cpu_iic_regs(cpu);
-	u64 iic_ir = 0;
-	int node = cpu >> 1;
-
-	/* Set which node and thread will handle the next interrupt */
-	iic_ir |= CBE_IIC_IR_PRIO(priority) |
-		  CBE_IIC_IR_DEST_NODE(node);
-	if (thread == 0)
-		iic_ir |= CBE_IIC_IR_DEST_UNIT(CBE_IIC_IR_PT_0);
-	else
-		iic_ir |= CBE_IIC_IR_DEST_UNIT(CBE_IIC_IR_PT_1);
-	out_be64(&iic_regs->iic_ir, iic_ir);
-}

arch/powerpc/platforms/cell/interrupt.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef ASM_CELL_PIC_H
-#define ASM_CELL_PIC_H
-#ifdef __KERNEL__
-/*
- * Mapping of IIC pending bits into per-node interrupt numbers.
- *
- * Interrupt numbers are in the range 0...0x1ff where the top bit
- * (0x100) represent the source node. Only 2 nodes are supported with
- * the current code though it's trivial to extend that if necessary using
- * higher level bits
- *
- * The bottom 8 bits are split into 2 type bits and 6 data bits that
- * depend on the type:
- *
- * 00 (0x00 | data) : normal interrupt. data is (class << 4) | source
- * 01 (0x40 | data) : IO exception. data is the exception number as
- *                    defined by bit numbers in IIC_SR
- * 10 (0x80 | data) : IPI. data is the IPI number (obtained from the priority)
- *                    and node is always 0 (IPIs are per-cpu, their source is
- *                    not relevant)
- * 11 (0xc0 | data) : reserved
- *
- * In addition, interrupt number 0x80000000 is defined as always invalid
- * (that is the node field is expected to never extend to move than 23 bits)
- *
- */
-
-enum {
-	IIC_IRQ_INVALID		= 0x80000000u,
-	IIC_IRQ_NODE_MASK	= 0x100,
-	IIC_IRQ_NODE_SHIFT	= 8,
-	IIC_IRQ_MAX		= 0x1ff,
-	IIC_IRQ_TYPE_MASK	= 0xc0,
-	IIC_IRQ_TYPE_NORMAL	= 0x00,
-	IIC_IRQ_TYPE_IOEXC	= 0x40,
-	IIC_IRQ_TYPE_IPI	= 0x80,
-	IIC_IRQ_CLASS_SHIFT	= 4,
-	IIC_IRQ_CLASS_0		= 0x00,
-	IIC_IRQ_CLASS_1		= 0x10,
-	IIC_IRQ_CLASS_2		= 0x20,
-	IIC_SOURCE_COUNT	= 0x200,
-
-	/* Here are defined the various source/dest units. Avoid using those
-	 * definitions if you can, they are mostly here for reference
-	 */
-	IIC_UNIT_SPU_0		= 0x4,
-	IIC_UNIT_SPU_1		= 0x7,
-	IIC_UNIT_SPU_2		= 0x3,
-	IIC_UNIT_SPU_3		= 0x8,
-	IIC_UNIT_SPU_4		= 0x2,
-	IIC_UNIT_SPU_5		= 0x9,
-	IIC_UNIT_SPU_6		= 0x1,
-	IIC_UNIT_SPU_7		= 0xa,
-	IIC_UNIT_IOC_0		= 0x0,
-	IIC_UNIT_IOC_1		= 0xb,
-	IIC_UNIT_THREAD_0	= 0xe, /* target only */
-	IIC_UNIT_THREAD_1	= 0xf, /* target only */
-	IIC_UNIT_IIC		= 0xe, /* source only (IO exceptions) */
-
-	/* Base numbers for the external interrupts */
-	IIC_IRQ_EXT_IOIF0	=
-		IIC_IRQ_TYPE_NORMAL | IIC_IRQ_CLASS_2 | IIC_UNIT_IOC_0,
-	IIC_IRQ_EXT_IOIF1	=
-		IIC_IRQ_TYPE_NORMAL | IIC_IRQ_CLASS_2 | IIC_UNIT_IOC_1,
-
-	/* Base numbers for the IIC_ISR interrupts */
-	IIC_IRQ_IOEX_TMI	= IIC_IRQ_TYPE_IOEXC | IIC_IRQ_CLASS_1 | 63,
-	IIC_IRQ_IOEX_PMI	= IIC_IRQ_TYPE_IOEXC | IIC_IRQ_CLASS_1 | 62,
-	IIC_IRQ_IOEX_ATI	= IIC_IRQ_TYPE_IOEXC | IIC_IRQ_CLASS_1 | 61,
-	IIC_IRQ_IOEX_MATBFI	= IIC_IRQ_TYPE_IOEXC | IIC_IRQ_CLASS_1 | 60,
-	IIC_IRQ_IOEX_ELDI	= IIC_IRQ_TYPE_IOEXC | IIC_IRQ_CLASS_1 | 59,
-
-	/* Which bits in IIC_ISR are edge sensitive */
-	IIC_ISR_EDGE_MASK	= 0x4ul,
-};
-
-extern void iic_init_IRQ(void);
-extern void iic_message_pass(int cpu, int msg);
-extern void iic_request_IPIs(void);
-extern void iic_setup_cpu(void);
-
-extern u8 iic_get_target_id(int cpu);
-
-extern void spider_init_IRQ(void);
-
-extern void iic_set_interrupt_routing(int cpu, int thread, int priority);
-
-#endif
-#endif /* ASM_CELL_PIC_H */

arch/powerpc/platforms/cell/iommu.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * IOMMU implementation for Cell Broadband Processor Architecture
- *
- * (C) Copyright IBM Corporation 2006-2008
- *
- * Author: Jeremy Kerr <[e-mail]>
- */
-
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irqdomain.h>
-#include <linux/notifier.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/memblock.h>
-
-#include <asm/prom.h>
-#include <asm/iommu.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <asm/udbg.h>
-#include <asm/firmware.h>
-#include <asm/cell-regs.h>
-
-#include "cell.h"
-#include "interrupt.h"
-
-/* Define CELL_IOMMU_REAL_UNMAP to actually unmap non-used pages
- * instead of leaving them mapped to some dummy page. This can be
- * enabled once the appropriate workarounds for spider bugs have
- * been enabled
- */
-#define CELL_IOMMU_REAL_UNMAP
-
-/* Define CELL_IOMMU_STRICT_PROTECTION to enforce protection of
- * IO PTEs based on the transfer direction. That can be enabled
- * once spider-net has been fixed to pass the correct direction
- * to the DMA mapping functions
- */
-#define CELL_IOMMU_STRICT_PROTECTION
-
-
-#define NR_IOMMUS			2
-
-/* IOC mmap registers */
-#define IOC_Reg_Size			0x2000
-
-#define IOC_IOPT_CacheInvd		0x908
-#define IOC_IOPT_CacheInvd_NE_Mask	0xffe0000000000000ul
-#define IOC_IOPT_CacheInvd_IOPTE_Mask	0x000003fffffffff8ul
-#define IOC_IOPT_CacheInvd_Busy		0x0000000000000001ul
-
-#define IOC_IOST_Origin			0x918
-#define IOC_IOST_Origin_E		0x8000000000000000ul
-#define IOC_IOST_Origin_HW		0x0000000000000800ul
-#define IOC_IOST_Origin_HL		0x0000000000000400ul
-
-#define IOC_IO_ExcpStat			0x920
-#define IOC_IO_ExcpStat_V		0x8000000000000000ul
-#define IOC_IO_ExcpStat_SPF_Mask	0x6000000000000000ul
-#define IOC_IO_ExcpStat_SPF_S		0x6000000000000000ul
-#define IOC_IO_ExcpStat_SPF_P		0x2000000000000000ul
-#define IOC_IO_ExcpStat_ADDR_Mask	0x00000007fffff000ul
-#define IOC_IO_ExcpStat_RW_Mask		0x0000000000000800ul
-#define IOC_IO_ExcpStat_IOID_Mask	0x00000000000007fful
-
-#define IOC_IO_ExcpMask			0x928
-#define IOC_IO_ExcpMask_SFE		0x4000000000000000ul
-#define IOC_IO_ExcpMask_PFE		0x2000000000000000ul
-
-#define IOC_IOCmd_Offset		0x1000
-
-#define IOC_IOCmd_Cfg			0xc00
-#define IOC_IOCmd_Cfg_TE		0x0000800000000000ul
-
-
-/* Segment table entries */
-#define IOSTE_V			0x8000000000000000ul /* valid */
-#define IOSTE_H			0x4000000000000000ul /* cache hint */
-#define IOSTE_PT_Base_RPN_Mask  0x3ffffffffffff000ul /* base RPN of IOPT */
-#define IOSTE_NPPT_Mask		0x0000000000000fe0ul /* no. pages in IOPT */
-#define IOSTE_PS_Mask		0x0000000000000007ul /* page size */
-#define IOSTE_PS_4K		0x0000000000000001ul /*   - 4kB  */
-#define IOSTE_PS_64K		0x0000000000000003ul /*   - 64kB */
-#define IOSTE_PS_1M		0x0000000000000005ul /*   - 1MB  */
-#define IOSTE_PS_16M		0x0000000000000007ul /*   - 16MB */
-
-
-/* IOMMU sizing */
-#define IO_SEGMENT_SHIFT	28
-#define IO_PAGENO_BITS(shift)	(IO_SEGMENT_SHIFT - (shift))
-
-/* The high bit needs to be set on every DMA address */
-#define SPIDER_DMA_OFFSET	0x80000000ul
-
-struct iommu_window {
-	struct list_head list;
-	struct cbe_iommu *iommu;
-	unsigned long offset;
-	unsigned long size;
-	unsigned int ioid;
-	struct iommu_table table;
-};
-
-#define NAMESIZE 8
-struct cbe_iommu {
-	int nid;
-	char name[NAMESIZE];
-	void __iomem *xlate_regs;
-	void __iomem *cmd_regs;
-	unsigned long *stab;
-	unsigned long *ptab;
-	void *pad_page;
-	struct list_head windows;
-};
-
-/* Static array of iommus, one per node
- *   each contains a list of windows, keyed from dma_window property
- *   - on bus setup, look for a matching window, or create one
- *   - on dev setup, assign iommu_table ptr
- */
-static struct cbe_iommu iommus[NR_IOMMUS];
-static int cbe_nr_iommus;
-
-static void invalidate_tce_cache(struct cbe_iommu *iommu, unsigned long *pte,
-		long n_ptes)
-{
-	u64 __iomem *reg;
-	u64 val;
-	long n;
-
-	reg = iommu->xlate_regs + IOC_IOPT_CacheInvd;
-
-	while (n_ptes > 0) {
-		/* we can invalidate up to 1 << 11 PTEs at once */
-		n = min(n_ptes, 1l << 11);
-		val = (((n /*- 1*/) << 53) & IOC_IOPT_CacheInvd_NE_Mask)
-			| (__pa(pte) & IOC_IOPT_CacheInvd_IOPTE_Mask)
-		        | IOC_IOPT_CacheInvd_Busy;
-
-		out_be64(reg, val);
-		while (in_be64(reg) & IOC_IOPT_CacheInvd_Busy)
-			;
-
-		n_ptes -= n;
-		pte += n;
-	}
-}
-
-static int tce_build_cell(struct iommu_table *tbl, long index, long npages,
-		unsigned long uaddr, enum dma_data_direction direction,
-		unsigned long attrs)
-{
-	int i;
-	unsigned long *io_pte, base_pte;
-	struct iommu_window *window =
-		container_of(tbl, struct iommu_window, table);
-
-	/* implementing proper protection causes problems with the spidernet
-	 * driver - check mapping directions later, but allow read & write by
-	 * default for now.*/
-#ifdef CELL_IOMMU_STRICT_PROTECTION
-	/* to avoid referencing a global, we use a trick here to setup the
-	 * protection bit. "prot" is setup to be 3 fields of 4 bits appended
-	 * together for each of the 3 supported direction values. It is then
-	 * shifted left so that the fields matching the desired direction
-	 * lands on the appropriate bits, and other bits are masked out.
-	 */
-	const unsigned long prot = 0xc48;
-	base_pte =
-		((prot << (52 + 4 * direction)) &
-		 (CBE_IOPTE_PP_W | CBE_IOPTE_PP_R)) |
-		CBE_IOPTE_M | CBE_IOPTE_SO_RW |
-		(window->ioid & CBE_IOPTE_IOID_Mask);
-#else
-	base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
-		CBE_IOPTE_SO_RW | (window->ioid & CBE_IOPTE_IOID_Mask);
-#endif
-	if (unlikely(attrs & DMA_ATTR_WEAK_ORDERING))
-		base_pte &= ~CBE_IOPTE_SO_RW;
-
-	io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
-
-	for (i = 0; i < npages; i++, uaddr += (1 << tbl->it_page_shift))
-		io_pte[i] = base_pte | (__pa(uaddr) & CBE_IOPTE_RPN_Mask);
-
-	mb();
-
-	invalidate_tce_cache(window->iommu, io_pte, npages);
-
-	pr_debug("tce_build_cell(index=%lx,n=%lx,dir=%d,base_pte=%lx)\n",
-		 index, npages, direction, base_pte);
-	return 0;
-}
-
-static void tce_free_cell(struct iommu_table *tbl, long index, long npages)
-{
-
-	int i;
-	unsigned long *io_pte, pte;
-	struct iommu_window *window =
-		container_of(tbl, struct iommu_window, table);
-
-	pr_debug("tce_free_cell(index=%lx,n=%lx)\n", index, npages);
-
-#ifdef CELL_IOMMU_REAL_UNMAP
-	pte = 0;
-#else
-	/* spider bridge does PCI reads after freeing - insert a mapping
-	 * to a scratch page instead of an invalid entry */
-	pte = CBE_IOPTE_PP_R | CBE_IOPTE_M | CBE_IOPTE_SO_RW |
-		__pa(window->iommu->pad_page) |
-		(window->ioid & CBE_IOPTE_IOID_Mask);
-#endif
-
-	io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset);
-
-	for (i = 0; i < npages; i++)
-		io_pte[i] = pte;
-
-	mb();
-
-	invalidate_tce_cache(window->iommu, io_pte, npages);
-}
-
-static irqreturn_t ioc_interrupt(int irq, void *data)
-{
-	unsigned long stat, spf;
-	struct cbe_iommu *iommu = data;
-
-	stat = in_be64(iommu->xlate_regs + IOC_IO_ExcpStat);
-	spf = stat & IOC_IO_ExcpStat_SPF_Mask;
-
-	/* Might want to rate limit it */
-	printk(KERN_ERR "iommu: DMA exception 0x%016lx\n", stat);
-	printk(KERN_ERR "  V=%d, SPF=[%c%c], RW=%s, IOID=0x%04x\n",
-	       !!(stat & IOC_IO_ExcpStat_V),
-	       (spf == IOC_IO_ExcpStat_SPF_S) ? 'S' : ' ',
-	       (spf == IOC_IO_ExcpStat_SPF_P) ? 'P' : ' ',
-	       (stat & IOC_IO_ExcpStat_RW_Mask) ? "Read" : "Write",
-	       (unsigned int)(stat & IOC_IO_ExcpStat_IOID_Mask));
-	printk(KERN_ERR "  page=0x%016lx\n",
-	       stat & IOC_IO_ExcpStat_ADDR_Mask);
-
-	/* clear interrupt */
-	stat &= ~IOC_IO_ExcpStat_V;
-	out_be64(iommu->xlate_regs + IOC_IO_ExcpStat, stat);
-
-	return IRQ_HANDLED;
-}
-
-static int __init cell_iommu_find_ioc(int nid, unsigned long *base)
-{
-	struct device_node *np;
-	struct resource r;
-
-	*base = 0;
-
-	/* First look for new style /be nodes */
-	for_each_node_by_name(np, "ioc") {
-		if (of_node_to_nid(np) != nid)
-			continue;
-		if (of_address_to_resource(np, 0, &r)) {
-			printk(KERN_ERR "iommu: can't get address for %pOF\n",
-			       np);
-			continue;
-		}
-		*base = r.start;
-		of_node_put(np);
-		return 0;
-	}
-
-	/* Ok, let's try the old way */
-	for_each_node_by_type(np, "cpu") {
-		const unsigned int *nidp;
-		const unsigned long *tmp;
-
-		nidp = of_get_property(np, "node-id", NULL);
-		if (nidp && *nidp == nid) {
-			tmp = of_get_property(np, "ioc-translation", NULL);
-			if (tmp) {
-				*base = *tmp;
-				of_node_put(np);
-				return 0;
-			}
-		}
-	}
-
-	return -ENODEV;
-}
-
-static void __init cell_iommu_setup_stab(struct cbe_iommu *iommu,
-				unsigned long dbase, unsigned long dsize,
-				unsigned long fbase, unsigned long fsize)
-{
-	struct page *page;
-	unsigned long segments, stab_size;
-
-	segments = max(dbase + dsize, fbase + fsize) >> IO_SEGMENT_SHIFT;
-
-	pr_debug("%s: iommu[%d]: segments: %lu\n",
-			__func__, iommu->nid, segments);
-
-	/* set up the segment table */
-	stab_size = segments * sizeof(unsigned long);
-	page = alloc_pages_node(iommu->nid, GFP_KERNEL, get_order(stab_size));
-	BUG_ON(!page);
-	iommu->stab = page_address(page);
-	memset(iommu->stab, 0, stab_size);
-}
-
-static unsigned long *__init cell_iommu_alloc_ptab(struct cbe_iommu *iommu,
-		unsigned long base, unsigned long size, unsigned long gap_base,
-		unsigned long gap_size, unsigned long page_shift)
-{
-	struct page *page;
-	int i;
-	unsigned long reg, segments, pages_per_segment, ptab_size,
-		      n_pte_pages, start_seg, *ptab;
-
-	start_seg = base >> IO_SEGMENT_SHIFT;
-	segments  = size >> IO_SEGMENT_SHIFT;
-	pages_per_segment = 1ull << IO_PAGENO_BITS(page_shift);
-	/* PTEs for each segment must start on a 4K boundary */
-	pages_per_segment = max(pages_per_segment,
-				(1 << 12) / sizeof(unsigned long));
-
-	ptab_size = segments * pages_per_segment * sizeof(unsigned long);
-	pr_debug("%s: iommu[%d]: ptab_size: %lu, order: %d\n", __func__,
-			iommu->nid, ptab_size, get_order(ptab_size));
-	page = alloc_pages_node(iommu->nid, GFP_KERNEL, get_order(ptab_size));
-	BUG_ON(!page);
-
-	ptab = page_address(page);
-	memset(ptab, 0, ptab_size);
-
-	/* number of 4K pages needed for a page table */
-	n_pte_pages = (pages_per_segment * sizeof(unsigned long)) >> 12;
-
-	pr_debug("%s: iommu[%d]: stab at %p, ptab at %p, n_pte_pages: %lu\n",
-			__func__, iommu->nid, iommu->stab, ptab,
-			n_pte_pages);
-
-	/* initialise the STEs */
-	reg = IOSTE_V | ((n_pte_pages - 1) << 5);
-
-	switch (page_shift) {
-	case 12: reg |= IOSTE_PS_4K;  break;
-	case 16: reg |= IOSTE_PS_64K; break;
-	case 20: reg |= IOSTE_PS_1M;  break;
-	case 24: reg |= IOSTE_PS_16M; break;
-	default: BUG();
-	}
-
-	gap_base = gap_base >> IO_SEGMENT_SHIFT;
-	gap_size = gap_size >> IO_SEGMENT_SHIFT;
-
-	pr_debug("Setting up IOMMU stab:\n");
-	for (i = start_seg; i < (start_seg + segments); i++) {
-		if (i >= gap_base && i < (gap_base + gap_size)) {
-			pr_debug("\toverlap at %d, skipping\n", i);
-			continue;
-		}
-		iommu->stab[i] = reg | (__pa(ptab) + (n_pte_pages << 12) *
-					(i - start_seg));
-		pr_debug("\t[%d] 0x%016lx\n", i, iommu->stab[i]);
-	}
-
-	return ptab;
-}
-
-static void __init cell_iommu_enable_hardware(struct cbe_iommu *iommu)
-{
-	int ret;
-	unsigned long reg, xlate_base;
-	unsigned int virq;
-
-	if (cell_iommu_find_ioc(iommu->nid, &xlate_base))
-		panic("%s: missing IOC register mappings for node %d\n",
-		      __func__, iommu->nid);
-
-	iommu->xlate_regs = ioremap(xlate_base, IOC_Reg_Size);
-	iommu->cmd_regs = iommu->xlate_regs + IOC_IOCmd_Offset;
-
-	/* ensure that the STEs have updated */
-	mb();
-
-	/* setup interrupts for the iommu. */
-	reg = in_be64(iommu->xlate_regs + IOC_IO_ExcpStat);
-	out_be64(iommu->xlate_regs + IOC_IO_ExcpStat,
-			reg & ~IOC_IO_ExcpStat_V);
-	out_be64(iommu->xlate_regs + IOC_IO_ExcpMask,
-			IOC_IO_ExcpMask_PFE | IOC_IO_ExcpMask_SFE);
-
-	virq = irq_create_mapping(NULL,
-			IIC_IRQ_IOEX_ATI | (iommu->nid << IIC_IRQ_NODE_SHIFT));
-	BUG_ON(!virq);
-
-	ret = request_irq(virq, ioc_interrupt, 0, iommu->name, iommu);
-	BUG_ON(ret);
-
-	/* set the IOC segment table origin register (and turn on the iommu) */
-	reg = IOC_IOST_Origin_E | __pa(iommu->stab) | IOC_IOST_Origin_HW;
-	out_be64(iommu->xlate_regs + IOC_IOST_Origin, reg);
-	in_be64(iommu->xlate_regs + IOC_IOST_Origin);
-
-	/* turn on IO translation */
-	reg = in_be64(iommu->cmd_regs + IOC_IOCmd_Cfg) | IOC_IOCmd_Cfg_TE;
-	out_be64(iommu->cmd_regs + IOC_IOCmd_Cfg, reg);
-}
-
-static void __init cell_iommu_setup_hardware(struct cbe_iommu *iommu,
-	unsigned long base, unsigned long size)
-{
-	cell_iommu_setup_stab(iommu, base, size, 0, 0);
-	iommu->ptab = cell_iommu_alloc_ptab(iommu, base, size, 0, 0,
-					    IOMMU_PAGE_SHIFT_4K);
-	cell_iommu_enable_hardware(iommu);
-}
-
-static inline u32 cell_iommu_get_ioid(struct device_node *np)
-{
-	const u32 *ioid;
-
-	ioid = of_get_property(np, "ioid", NULL);
-	if (ioid == NULL) {
-		printk(KERN_WARNING "iommu: missing ioid for %pOF using 0\n",
-		       np);
-		return 0;
-	}
-
-	return *ioid;
-}
-
-static struct iommu_table_ops cell_iommu_ops = {
-	.set = tce_build_cell,
-	.clear = tce_free_cell
-};
-
-static struct iommu_window * __init
-cell_iommu_setup_window(struct cbe_iommu *iommu, struct device_node *np,
-			unsigned long offset, unsigned long size,
-			unsigned long pte_offset)
-{
-	struct iommu_window *window;
-	struct page *page;
-	u32 ioid;
-
-	ioid = cell_iommu_get_ioid(np);
-
-	window = kzalloc_node(sizeof(*window), GFP_KERNEL, iommu->nid);
-	BUG_ON(window == NULL);
-
-	window->offset = offset;
-	window->size = size;
-	window->ioid = ioid;
-	window->iommu = iommu;
-
-	window->table.it_blocksize = 16;
-	window->table.it_base = (unsigned long)iommu->ptab;
-	window->table.it_index = iommu->nid;
-	window->table.it_page_shift = IOMMU_PAGE_SHIFT_4K;
-	window->table.it_offset =
-		(offset >> window->table.it_page_shift) + pte_offset;
-	window->table.it_size = size >> window->table.it_page_shift;
-	window->table.it_ops = &cell_iommu_ops;
-
-	if (!iommu_init_table(&window->table, iommu->nid, 0, 0))
-		panic("Failed to initialize iommu table");
-
-	pr_debug("\tioid      %d\n", window->ioid);
-	pr_debug("\tblocksize %ld\n", window->table.it_blocksize);
-	pr_debug("\tbase      0x%016lx\n", window->table.it_base);
-	pr_debug("\toffset    0x%lx\n", window->table.it_offset);
-	pr_debug("\tsize      %ld\n", window->table.it_size);
-
-	list_add(&window->list, &iommu->windows);
-
-	if (offset != 0)
-		return window;
-
-	/* We need to map and reserve the first IOMMU page since it's used
-	 * by the spider workaround. In theory, we only need to do that when
-	 * running on spider but it doesn't really matter.
-	 *
-	 * This code also assumes that we have a window that starts at 0,
-	 * which is the case on all spider based blades.
-	 */
-	page = alloc_pages_node(iommu->nid, GFP_KERNEL, 0);
-	BUG_ON(!page);
-	iommu->pad_page = page_address(page);
-	clear_page(iommu->pad_page);
-
-	__set_bit(0, window->table.it_map);
-	tce_build_cell(&window->table, window->table.it_offset, 1,
-		       (unsigned long)iommu->pad_page, DMA_TO_DEVICE, 0);
-
-	return window;
-}
-
-static struct cbe_iommu *cell_iommu_for_node(int nid)
-{
-	int i;
-
-	for (i = 0; i < cbe_nr_iommus; i++)
-		if (iommus[i].nid == nid)
-			return &iommus[i];
-	return NULL;
-}
-
-static unsigned long cell_dma_nommu_offset;
-
-static unsigned long dma_iommu_fixed_base;
-static bool cell_iommu_enabled;
-
-/* iommu_fixed_is_weak is set if booted with iommu_fixed=weak */
-bool iommu_fixed_is_weak;
-
-static struct iommu_table *cell_get_iommu_table(struct device *dev)
-{
-	struct iommu_window *window;
-	struct cbe_iommu *iommu;
-
-	/* Current implementation uses the first window available in that
-	 * node's iommu. We -might- do something smarter later though it may
-	 * never be necessary
-	 */
-	iommu = cell_iommu_for_node(dev_to_node(dev));
-	if (iommu == NULL || list_empty(&iommu->windows)) {
-		dev_err(dev, "iommu: missing iommu for %pOF (node %d)\n",
-		       dev->of_node, dev_to_node(dev));
-		return NULL;
-	}
-	window = list_entry(iommu->windows.next, struct iommu_window, list);
-
-	return &window->table;
-}
-
-static u64 cell_iommu_get_fixed_address(struct device *dev);
-
-static void cell_dma_dev_setup(struct device *dev)
-{
-	if (cell_iommu_enabled) {
-		u64 addr = cell_iommu_get_fixed_address(dev);
-
-		if (addr != OF_BAD_ADDR)
-			dev->archdata.dma_offset = addr + dma_iommu_fixed_base;
-		set_iommu_table_base(dev, cell_get_iommu_table(dev));
-	} else {
-		dev->archdata.dma_offset = cell_dma_nommu_offset;
-	}
-}
-
-static void cell_pci_dma_dev_setup(struct pci_dev *dev)
-{
-	cell_dma_dev_setup(&dev->dev);
-}
-
-static int cell_of_bus_notify(struct notifier_block *nb, unsigned long action,
-			      void *data)
-{
-	struct device *dev = data;
-
-	/* We are only interested in device addition */
-	if (action != BUS_NOTIFY_ADD_DEVICE)
-		return 0;
-
-	if (cell_iommu_enabled)
-		dev->dma_ops = &dma_iommu_ops;
-	cell_dma_dev_setup(dev);
-	return 0;
-}
-
-static struct notifier_block cell_of_bus_notifier = {
-	.notifier_call = cell_of_bus_notify
-};
-
-static int __init cell_iommu_get_window(struct device_node *np,
-					 unsigned long *base,
-					 unsigned long *size)
-{
-	const __be32 *dma_window;
-	unsigned long index;
-
-	/* Use ibm,dma-window if available, else, hard code ! */
-	dma_window = of_get_property(np, "ibm,dma-window", NULL);
-	if (dma_window == NULL) {
-		*base = 0;
-		*size = 0x80000000u;
-		return -ENODEV;
-	}
-
-	of_parse_dma_window(np, dma_window, &index, base, size);
-	return 0;
-}
-
-static struct cbe_iommu * __init cell_iommu_alloc(struct device_node *np)
-{
-	struct cbe_iommu *iommu;
-	int nid, i;
-
-	/* Get node ID */
-	nid = of_node_to_nid(np);
-	if (nid < 0) {
-		printk(KERN_ERR "iommu: failed to get node for %pOF\n",
-		       np);
-		return NULL;
-	}
-	pr_debug("iommu: setting up iommu for node %d (%pOF)\n",
-		 nid, np);
-
-	/* XXX todo: If we can have multiple windows on the same IOMMU, which
-	 * isn't the case today, we probably want here to check whether the
-	 * iommu for that node is already setup.
-	 * However, there might be issue with getting the size right so let's
-	 * ignore that for now. We might want to completely get rid of the
-	 * multiple window support since the cell iommu supports per-page ioids
-	 */
-
-	if (cbe_nr_iommus >= NR_IOMMUS) {
-		printk(KERN_ERR "iommu: too many IOMMUs detected ! (%pOF)\n",
-		       np);
-		return NULL;
-	}
-
-	/* Init base fields */
-	i = cbe_nr_iommus++;
-	iommu = &iommus[i];
-	iommu->stab = NULL;
-	iommu->nid = nid;
-	snprintf(iommu->name, sizeof(iommu->name), "iommu%d", i);
-	INIT_LIST_HEAD(&iommu->windows);
-
-	return iommu;
-}
-
-static void __init cell_iommu_init_one(struct device_node *np,
-				       unsigned long offset)
-{
-	struct cbe_iommu *iommu;
-	unsigned long base, size;
-
-	iommu = cell_iommu_alloc(np);
-	if (!iommu)
-		return;
-
-	/* Obtain a window for it */
-	cell_iommu_get_window(np, &base, &size);
-
-	pr_debug("\ttranslating window 0x%lx...0x%lx\n",
-		 base, base + size - 1);
-
-	/* Initialize the hardware */
-	cell_iommu_setup_hardware(iommu, base, size);
-
-	/* Setup the iommu_table */
-	cell_iommu_setup_window(iommu, np, base, size,
-				offset >> IOMMU_PAGE_SHIFT_4K);
-}
-
-static void __init cell_disable_iommus(void)
-{
-	int node;
-	unsigned long base, val;
-	void __iomem *xregs, *cregs;
-
-	/* Make sure IOC translation is disabled on all nodes */
-	for_each_online_node(node) {
-		if (cell_iommu_find_ioc(node, &base))
-			continue;
-		xregs = ioremap(base, IOC_Reg_Size);
-		if (xregs == NULL)
-			continue;
-		cregs = xregs + IOC_IOCmd_Offset;
-
-		pr_debug("iommu: cleaning up iommu on node %d\n", node);
-
-		out_be64(xregs + IOC_IOST_Origin, 0);
-		(void)in_be64(xregs + IOC_IOST_Origin);
-		val = in_be64(cregs + IOC_IOCmd_Cfg);
-		val &= ~IOC_IOCmd_Cfg_TE;
-		out_be64(cregs + IOC_IOCmd_Cfg, val);
-		(void)in_be64(cregs + IOC_IOCmd_Cfg);
-
-		iounmap(xregs);
-	}
-}
-
-static int __init cell_iommu_init_disabled(void)
-{
-	struct device_node *np = NULL;
-	unsigned long base = 0, size;
-
-	/* When no iommu is present, we use direct DMA ops */
-
-	/* First make sure all IOC translation is turned off */
-	cell_disable_iommus();
-
-	/* If we have no Axon, we set up the spider DMA magic offset */
-	np = of_find_node_by_name(NULL, "axon");
-	if (!np)
-		cell_dma_nommu_offset = SPIDER_DMA_OFFSET;
-	of_node_put(np);
-
-	/* Now we need to check to see where the memory is mapped
-	 * in PCI space. We assume that all busses use the same dma
-	 * window which is always the case so far on Cell, thus we
-	 * pick up the first pci-internal node we can find and check
-	 * the DMA window from there.
-	 */
-	for_each_node_by_name(np, "axon") {
-		if (np->parent == NULL || np->parent->parent != NULL)
-			continue;
-		if (cell_iommu_get_window(np, &base, &size) == 0)
-			break;
-	}
-	if (np == NULL) {
-		for_each_node_by_name(np, "pci-internal") {
-			if (np->parent == NULL || np->parent->parent != NULL)
-				continue;
-			if (cell_iommu_get_window(np, &base, &size) == 0)
-				break;
-		}
-	}
-	of_node_put(np);
-
-	/* If we found a DMA window, we check if it's big enough to enclose
-	 * all of physical memory. If not, we force enable IOMMU
-	 */
-	if (np && size < memblock_end_of_DRAM()) {
-		printk(KERN_WARNING "iommu: force-enabled, dma window"
-		       " (%ldMB) smaller than total memory (%lldMB)\n",
-		       size >> 20, memblock_end_of_DRAM() >> 20);
-		return -ENODEV;
-	}
-
-	cell_dma_nommu_offset += base;
-
-	if (cell_dma_nommu_offset != 0)
-		cell_pci_controller_ops.dma_dev_setup = cell_pci_dma_dev_setup;
-
-	printk("iommu: disabled, direct DMA offset is 0x%lx\n",
-	       cell_dma_nommu_offset);
-
-	return 0;
-}
-
-/*
- *  Fixed IOMMU mapping support
- *
- *  This code adds support for setting up a fixed IOMMU mapping on certain
- *  cell machines. For 64-bit devices this avoids the performance overhead of
- *  mapping and unmapping pages at runtime. 32-bit devices are unable to use
- *  the fixed mapping.
- *
- *  The fixed mapping is established at boot, and maps all of physical memory
- *  1:1 into device space at some offset. On machines with < 30 GB of memory
- *  we setup the fixed mapping immediately above the normal IOMMU window.
- *
- *  For example a machine with 4GB of memory would end up with the normal
- *  IOMMU window from 0-2GB and the fixed mapping window from 2GB to 6GB. In
- *  this case a 64-bit device wishing to DMA to 1GB would be told to DMA to
- *  3GB, plus any offset required by firmware. The firmware offset is encoded
- *  in the "dma-ranges" property.
- *
- *  On machines with 30GB or more of memory, we are unable to place the fixed
- *  mapping above the normal IOMMU window as we would run out of address space.
- *  Instead we move the normal IOMMU window to coincide with the hash page
- *  table, this region does not need to be part of the fixed mapping as no
- *  device should ever be DMA'ing to it. We then setup the fixed mapping
- *  from 0 to 32GB.
- */
-
-static u64 cell_iommu_get_fixed_address(struct device *dev)
-{
-	u64 best_size, dev_addr = OF_BAD_ADDR;
-	struct device_node *np;
-	struct of_range_parser parser;
-	struct of_range range;
-
-	/* We can be called for platform devices that have no of_node */
-	np = of_node_get(dev->of_node);
-	if (!np)
-		goto out;
-
-	while ((np = of_get_next_parent(np))) {
-		if (of_pci_dma_range_parser_init(&parser, np))
-			continue;
-
-		if (of_range_count(&parser))
-			break;
-	}
-
-	if (!np) {
-		dev_dbg(dev, "iommu: no dma-ranges found\n");
-		goto out;
-	}
-
-	best_size = 0;
-	for_each_of_range(&parser, &range) {
-		if (!range.cpu_addr)
-			continue;
-
-		if (range.size > best_size) {
-			best_size = range.size;
-			dev_addr = range.bus_addr;
-		}
-	}
-
-	if (!best_size)
-		dev_dbg(dev, "iommu: no suitable range found!\n");
-
-out:
-	of_node_put(np);
-
-	return dev_addr;
-}
-
-static bool cell_pci_iommu_bypass_supported(struct pci_dev *pdev, u64 mask)
-{
-	return mask == DMA_BIT_MASK(64) &&
-		cell_iommu_get_fixed_address(&pdev->dev) != OF_BAD_ADDR;
-}
-
-static void __init insert_16M_pte(unsigned long addr, unsigned long *ptab,
-			   unsigned long base_pte)
-{
-	unsigned long segment, offset;
-
-	segment = addr >> IO_SEGMENT_SHIFT;
-	offset = (addr >> 24) - (segment << IO_PAGENO_BITS(24));
-	ptab = ptab + (segment * (1 << 12) / sizeof(unsigned long));
-
-	pr_debug("iommu: addr %lx ptab %p segment %lx offset %lx\n",
-		  addr, ptab, segment, offset);
-
-	ptab[offset] = base_pte | (__pa(addr) & CBE_IOPTE_RPN_Mask);
-}
-
-static void __init cell_iommu_setup_fixed_ptab(struct cbe_iommu *iommu,
-	struct device_node *np, unsigned long dbase, unsigned long dsize,
-	unsigned long fbase, unsigned long fsize)
-{
-	unsigned long base_pte, uaddr, ioaddr, *ptab;
-
-	ptab = cell_iommu_alloc_ptab(iommu, fbase, fsize, dbase, dsize, 24);
-
-	dma_iommu_fixed_base = fbase;
-
-	pr_debug("iommu: mapping 0x%lx pages from 0x%lx\n", fsize, fbase);
-
-	base_pte = CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | CBE_IOPTE_M |
-		(cell_iommu_get_ioid(np) & CBE_IOPTE_IOID_Mask);
-
-	if (iommu_fixed_is_weak)
-		pr_info("IOMMU: Using weak ordering for fixed mapping\n");
-	else {
-		pr_info("IOMMU: Using strong ordering for fixed mapping\n");
-		base_pte |= CBE_IOPTE_SO_RW;
-	}
-
-	for (uaddr = 0; uaddr < fsize; uaddr += (1 << 24)) {
-		/* Don't touch the dynamic region */
-		ioaddr = uaddr + fbase;
-		if (ioaddr >= dbase && ioaddr < (dbase + dsize)) {
-			pr_debug("iommu: fixed/dynamic overlap, skipping\n");
-			continue;
-		}
-
-		insert_16M_pte(uaddr, ptab, base_pte);
-	}
-
-	mb();
-}
-
-static int __init cell_iommu_fixed_mapping_init(void)
-{
-	unsigned long dbase, dsize, fbase, fsize, hbase, hend;
-	struct cbe_iommu *iommu;
-	struct device_node *np;
-
-	/* The fixed mapping is only supported on axon machines */
-	np = of_find_node_by_name(NULL, "axon");
-	of_node_put(np);
-
-	if (!np) {
-		pr_debug("iommu: fixed mapping disabled, no axons found\n");
-		return -1;
-	}
-
-	/* We must have dma-ranges properties for fixed mapping to work */
-	np = of_find_node_with_property(NULL, "dma-ranges");
-	of_node_put(np);
-
-	if (!np) {
-		pr_debug("iommu: no dma-ranges found, no fixed mapping\n");
-		return -1;
-	}
-
-	/* The default setup is to have the fixed mapping sit after the
-	 * dynamic region, so find the top of the largest IOMMU window
-	 * on any axon, then add the size of RAM and that's our max value.
-	 * If that is > 32GB we have to do other shennanigans.
-	 */
-	fbase = 0;
-	for_each_node_by_name(np, "axon") {
-		cell_iommu_get_window(np, &dbase, &dsize);
-		fbase = max(fbase, dbase + dsize);
-	}
-
-	fbase = ALIGN(fbase, 1 << IO_SEGMENT_SHIFT);
-	fsize = memblock_phys_mem_size();
-
-	if ((fbase + fsize) <= 0x800000000ul)
-		hbase = 0; /* use the device tree window */
-	else {
-		/* If we're over 32 GB we need to cheat. We can't map all of
-		 * RAM with the fixed mapping, and also fit the dynamic
-		 * region. So try to place the dynamic region where the hash
-		 * table sits, drivers never need to DMA to it, we don't
-		 * need a fixed mapping for that area.
-		 */
-		if (!htab_address) {
-			pr_debug("iommu: htab is NULL, on LPAR? Huh?\n");
-			return -1;
-		}
-		hbase = __pa(htab_address);
-		hend  = hbase + htab_size_bytes;
-
-		/* The window must start and end on a segment boundary */
-		if ((hbase != ALIGN(hbase, 1 << IO_SEGMENT_SHIFT)) ||
-		    (hend != ALIGN(hend, 1 << IO_SEGMENT_SHIFT))) {
-			pr_debug("iommu: hash window not segment aligned\n");
-			return -1;
-		}
-
-		/* Check the hash window fits inside the real DMA window */
-		for_each_node_by_name(np, "axon") {
-			cell_iommu_get_window(np, &dbase, &dsize);
-
-			if (hbase < dbase || (hend > (dbase + dsize))) {
-				pr_debug("iommu: hash window doesn't fit in"
-					 "real DMA window\n");
-				of_node_put(np);
-				return -1;
-			}
-		}
-
-		fbase = 0;
-	}
-
-	/* Setup the dynamic regions */
-	for_each_node_by_name(np, "axon") {
-		iommu = cell_iommu_alloc(np);
-		BUG_ON(!iommu);
-
-		if (hbase == 0)
-			cell_iommu_get_window(np, &dbase, &dsize);
-		else {
-			dbase = hbase;
-			dsize = htab_size_bytes;
-		}
-
-		printk(KERN_DEBUG "iommu: node %d, dynamic window 0x%lx-0x%lx "
-			"fixed window 0x%lx-0x%lx\n", iommu->nid, dbase,
-			 dbase + dsize, fbase, fbase + fsize);
-
-		cell_iommu_setup_stab(iommu, dbase, dsize, fbase, fsize);
-		iommu->ptab = cell_iommu_alloc_ptab(iommu, dbase, dsize, 0, 0,
-						    IOMMU_PAGE_SHIFT_4K);
-		cell_iommu_setup_fixed_ptab(iommu, np, dbase, dsize,
-					     fbase, fsize);
-		cell_iommu_enable_hardware(iommu);
-		cell_iommu_setup_window(iommu, np, dbase, dsize, 0);
-	}
-
-	cell_pci_controller_ops.iommu_bypass_supported =
-		cell_pci_iommu_bypass_supported;
-	return 0;
-}
-
-static int iommu_fixed_disabled;
-
-static int __init setup_iommu_fixed(char *str)
-{
-	struct device_node *pciep;
-
-	if (strcmp(str, "off") == 0)
-		iommu_fixed_disabled = 1;
-
-	/* If we can find a pcie-endpoint in the device tree assume that
-	 * we're on a triblade or a CAB so by default the fixed mapping
-	 * should be set to be weakly ordered; but only if the boot
-	 * option WASN'T set for strong ordering
-	 */
-	pciep = of_find_node_by_type(NULL, "pcie-endpoint");
-
-	if (strcmp(str, "weak") == 0 || (pciep && strcmp(str, "strong") != 0))
-		iommu_fixed_is_weak = true;
-
-	of_node_put(pciep);
-
-	return 1;
-}
-__setup("iommu_fixed=", setup_iommu_fixed);
-
-static int __init cell_iommu_init(void)
-{
-	struct device_node *np;
-
-	/* If IOMMU is disabled or we have little enough RAM to not need
-	 * to enable it, we setup a direct mapping.
-	 *
-	 * Note: should we make sure we have the IOMMU actually disabled ?
-	 */
-	if (iommu_is_off ||
-	    (!iommu_force_on && memblock_end_of_DRAM() <= 0x80000000ull))
-		if (cell_iommu_init_disabled() == 0)
-			goto bail;
-
-	/* Setup various callbacks */
-	cell_pci_controller_ops.dma_dev_setup = cell_pci_dma_dev_setup;
-
-	if (!iommu_fixed_disabled && cell_iommu_fixed_mapping_init() == 0)
-		goto done;
-
-	/* Create an iommu for each /axon node.  */
-	for_each_node_by_name(np, "axon") {
-		if (np->parent == NULL || np->parent->parent != NULL)
-			continue;
-		cell_iommu_init_one(np, 0);
-	}
-
-	/* Create an iommu for each toplevel /pci-internal node for
-	 * old hardware/firmware
-	 */
-	for_each_node_by_name(np, "pci-internal") {
-		if (np->parent == NULL || np->parent->parent != NULL)
-			continue;
-		cell_iommu_init_one(np, SPIDER_DMA_OFFSET);
-	}
- done:
-	/* Setup default PCI iommu ops */
-	set_pci_dma_ops(&dma_iommu_ops);
-	cell_iommu_enabled = true;
- bail:
-	/* Register callbacks on OF platform device addition/removal
-	 * to handle linking them to the right DMA operations
-	 */
-	bus_register_notifier(&platform_bus_type, &cell_of_bus_notifier);
-
-	return 0;
-}
-machine_arch_initcall(cell, cell_iommu_init);

arch/powerpc/platforms/cell/pervasive.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * CBE Pervasive Monitor and Debug
- *
- * (C) Copyright IBM Corporation 2005
- *
- * Authors: Maximino Aguilar ([e-mail])
- *          Michael N. Day ([e-mail])
- */
-
-#undef DEBUG
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/percpu.h>
-#include <linux/types.h>
-#include <linux/kallsyms.h>
-#include <linux/pgtable.h>
-
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/reg.h>
-#include <asm/cell-regs.h>
-#include <asm/cpu_has_feature.h>
-
-#include "pervasive.h"
-#include "ras.h"
-
-static void cbe_power_save(void)
-{
-	unsigned long ctrl, thread_switch_control;
-
-	/* Ensure our interrupt state is properly tracked */
-	if (!prep_irq_for_idle())
-		return;
-
-	ctrl = mfspr(SPRN_CTRLF);
-
-	/* Enable DEC and EE interrupt request */
-	thread_switch_control  = mfspr(SPRN_TSC_CELL);
-	thread_switch_control |= TSC_CELL_EE_ENABLE | TSC_CELL_EE_BOOST;
-
-	switch (ctrl & CTRL_CT) {
-	case CTRL_CT0:
-		thread_switch_control |= TSC_CELL_DEC_ENABLE_0;
-		break;
-	case CTRL_CT1:
-		thread_switch_control |= TSC_CELL_DEC_ENABLE_1;
-		break;
-	default:
-		printk(KERN_WARNING "%s: unknown configuration\n",
-			__func__);
-		break;
-	}
-	mtspr(SPRN_TSC_CELL, thread_switch_control);
-
-	/*
-	 * go into low thread priority, medium priority will be
-	 * restored for us after wake-up.
-	 */
-	HMT_low();
-
-	/*
-	 * atomically disable thread execution and runlatch.
-	 * External and Decrementer exceptions are still handled when the
-	 * thread is disabled but now enter in cbe_system_reset_exception()
-	 */
-	ctrl &= ~(CTRL_RUNLATCH | CTRL_TE);
-	mtspr(SPRN_CTRLT, ctrl);
-
-	/* Re-enable interrupts in MSR */
-	__hard_irq_enable();
-}
-
-static int cbe_system_reset_exception(struct pt_regs *regs)
-{
-	switch (regs->msr & SRR1_WAKEMASK) {
-	case SRR1_WAKEDEC:
-		set_dec(1);
-		break;
-	case SRR1_WAKEEE:
-		/*
-		 * Handle these when interrupts get re-enabled and we take
-		 * them as regular exceptions. We are in an NMI context
-		 * and can't handle these here.
-		 */
-		break;
-	case SRR1_WAKEMT:
-		return cbe_sysreset_hack();
-#ifdef CONFIG_CBE_RAS
-	case SRR1_WAKESYSERR:
-		cbe_system_error_exception(regs);
-		break;
-	case SRR1_WAKETHERM:
-		cbe_thermal_exception(regs);
-		break;
-#endif /* CONFIG_CBE_RAS */
-	default:
-		/* do system reset */
-		return 0;
-	}
-	/* everything handled */
-	return 1;
-}
-
-void __init cbe_pervasive_init(void)
-{
-	int cpu;
-
-	if (!cpu_has_feature(CPU_FTR_PAUSE_ZERO))
-		return;
-
-	for_each_possible_cpu(cpu) {
-		struct cbe_pmd_regs __iomem *regs = cbe_get_cpu_pmd_regs(cpu);
-		if (!regs)
-			continue;
-
-		 /* Enable Pause(0) control bit */
-		out_be64(&regs->pmcr, in_be64(&regs->pmcr) |
-					    CBE_PMD_PAUSE_ZERO_CONTROL);
-	}
-
-	ppc_md.power_save = cbe_power_save;
-	ppc_md.system_reset_exception = cbe_system_reset_exception;
-}

arch/powerpc/platforms/cell/pervasive.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Cell Pervasive Monitor and Debug interface and HW structures
- *
- * (C) Copyright IBM Corporation 2005
- *
- * Authors: Maximino Aguilar ([e-mail])
- *          David J. Erb ([e-mail])
- */
-
-
-#ifndef PERVASIVE_H
-#define PERVASIVE_H
-
-extern void cbe_pervasive_init(void);
-
-#ifdef CONFIG_PPC_IBM_CELL_RESETBUTTON
-extern int cbe_sysreset_hack(void);
-#else
-static inline int cbe_sysreset_hack(void)
-{
-	return 1;
-}
-#endif /* CONFIG_PPC_IBM_CELL_RESETBUTTON */
-
-#endif

arch/powerpc/platforms/cell/pmu.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Cell Broadband Engine Performance Monitor
- *
- * (C) Copyright IBM Corporation 2001,2006
- *
- * Author:
- *    David Erb ([e-mail])
- *    Kevin Corry ([e-mail])
- */
-
-#include <linux/interrupt.h>
-#include <linux/irqdomain.h>
-#include <linux/types.h>
-#include <linux/export.h>
-#include <asm/io.h>
-#include <asm/irq_regs.h>
-#include <asm/machdep.h>
-#include <asm/pmc.h>
-#include <asm/reg.h>
-#include <asm/spu.h>
-#include <asm/cell-regs.h>
-
-#include "interrupt.h"
-
-/*
- * When writing to write-only mmio addresses, save a shadow copy. All of the
- * registers are 32-bit, but stored in the upper-half of a 64-bit field in
- * pmd_regs.
- */
-
-#define WRITE_WO_MMIO(reg, x)					\
-	do {							\
-		u32 _x = (x);					\
-		struct cbe_pmd_regs __iomem *pmd_regs;		\
-		struct cbe_pmd_shadow_regs *shadow_regs;	\
-		pmd_regs = cbe_get_cpu_pmd_regs(cpu);		\
-		shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu);	\
-		out_be64(&(pmd_regs->reg), (((u64)_x) << 32));	\
-		shadow_regs->reg = _x;				\
-	} while (0)
-
-#define READ_SHADOW_REG(val, reg)				\
-	do {							\
-		struct cbe_pmd_shadow_regs *shadow_regs;	\
-		shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu);	\
-		(val) = shadow_regs->reg;			\
-	} while (0)
-
-#define READ_MMIO_UPPER32(val, reg)				\
-	do {							\
-		struct cbe_pmd_regs __iomem *pmd_regs;		\
-		pmd_regs = cbe_get_cpu_pmd_regs(cpu);		\
-		(val) = (u32)(in_be64(&pmd_regs->reg) >> 32);	\
-	} while (0)
-
-/*
- * Physical counter registers.
- * Each physical counter can act as one 32-bit counter or two 16-bit counters.
- */
-
-u32 cbe_read_phys_ctr(u32 cpu, u32 phys_ctr)
-{
-	u32 val_in_latch, val = 0;
-
-	if (phys_ctr < NR_PHYS_CTRS) {
-		READ_SHADOW_REG(val_in_latch, counter_value_in_latch);
-
-		/* Read the latch or the actual counter, whichever is newer. */
-		if (val_in_latch & (1 << phys_ctr)) {
-			READ_SHADOW_REG(val, pm_ctr[phys_ctr]);
-		} else {
-			READ_MMIO_UPPER32(val, pm_ctr[phys_ctr]);
-		}
-	}
-
-	return val;
-}
-EXPORT_SYMBOL_GPL(cbe_read_phys_ctr);
-
-void cbe_write_phys_ctr(u32 cpu, u32 phys_ctr, u32 val)
-{
-	struct cbe_pmd_shadow_regs *shadow_regs;
-	u32 pm_ctrl;
-
-	if (phys_ctr < NR_PHYS_CTRS) {
-		/* Writing to a counter only writes to a hardware latch.
-		 * The new value is not propagated to the actual counter
-		 * until the performance monitor is enabled.
-		 */
-		WRITE_WO_MMIO(pm_ctr[phys_ctr], val);
-
-		pm_ctrl = cbe_read_pm(cpu, pm_control);
-		if (pm_ctrl & CBE_PM_ENABLE_PERF_MON) {
-			/* The counters are already active, so we need to
-			 * rewrite the pm_control register to "re-enable"
-			 * the PMU.
-			 */
-			cbe_write_pm(cpu, pm_control, pm_ctrl);
-		} else {
-			shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu);
-			shadow_regs->counter_value_in_latch |= (1 << phys_ctr);
-		}
-	}
-}
-EXPORT_SYMBOL_GPL(cbe_write_phys_ctr);
-
-/*
- * "Logical" counter registers.
- * These will read/write 16-bits or 32-bits depending on the
- * current size of the counter. Counters 4 - 7 are always 16-bit.
- */
-
-u32 cbe_read_ctr(u32 cpu, u32 ctr)
-{
-	u32 val;
-	u32 phys_ctr = ctr & (NR_PHYS_CTRS - 1);
-
-	val = cbe_read_phys_ctr(cpu, phys_ctr);
-
-	if (cbe_get_ctr_size(cpu, phys_ctr) == 16)
-		val = (ctr < NR_PHYS_CTRS) ? (val >> 16) : (val & 0xffff);
-
-	return val;
-}
-EXPORT_SYMBOL_GPL(cbe_read_ctr);
-
-void cbe_write_ctr(u32 cpu, u32 ctr, u32 val)
-{
-	u32 phys_ctr;
-	u32 phys_val;
-
-	phys_ctr = ctr & (NR_PHYS_CTRS - 1);
-
-	if (cbe_get_ctr_size(cpu, phys_ctr) == 16) {
-		phys_val = cbe_read_phys_ctr(cpu, phys_ctr);
-
-		if (ctr < NR_PHYS_CTRS)
-			val = (val << 16) | (phys_val & 0xffff);
-		else
-			val = (val & 0xffff) | (phys_val & 0xffff0000);
-	}
-
-	cbe_write_phys_ctr(cpu, phys_ctr, val);
-}
-EXPORT_SYMBOL_GPL(cbe_write_ctr);
-
-/*
- * Counter-control registers.
- * Each "logical" counter has a corresponding control register.
- */
-
-u32 cbe_read_pm07_control(u32 cpu, u32 ctr)
-{
-	u32 pm07_control = 0;
-
-	if (ctr < NR_CTRS)
-		READ_SHADOW_REG(pm07_control, pm07_control[ctr]);
-
-	return pm07_control;
-}
-EXPORT_SYMBOL_GPL(cbe_read_pm07_control);
-
-void cbe_write_pm07_control(u32 cpu, u32 ctr, u32 val)
-{
-	if (ctr < NR_CTRS)
-		WRITE_WO_MMIO(pm07_control[ctr], val);
-}
-EXPORT_SYMBOL_GPL(cbe_write_pm07_control);
-
-/*
- * Other PMU control registers. Most of these are write-only.
- */
-
-u32 cbe_read_pm(u32 cpu, enum pm_reg_name reg)
-{
-	u32 val = 0;
-
-	switch (reg) {
-	case group_control:
-		READ_SHADOW_REG(val, group_control);
-		break;
-
-	case debug_bus_control:
-		READ_SHADOW_REG(val, debug_bus_control);
-		break;
-
-	case trace_address:
-		READ_MMIO_UPPER32(val, trace_address);
-		break;
-
-	case ext_tr_timer:
-		READ_SHADOW_REG(val, ext_tr_timer);
-		break;
-
-	case pm_status:
-		READ_MMIO_UPPER32(val, pm_status);
-		break;
-
-	case pm_control:
-		READ_SHADOW_REG(val, pm_control);
-		break;
-
-	case pm_interval:
-		READ_MMIO_UPPER32(val, pm_interval);
-		break;
-
-	case pm_start_stop:
-		READ_SHADOW_REG(val, pm_start_stop);
-		break;
-	}
-
-	return val;
-}
-EXPORT_SYMBOL_GPL(cbe_read_pm);
-
-void cbe_write_pm(u32 cpu, enum pm_reg_name reg, u32 val)
-{
-	switch (reg) {
-	case group_control:
-		WRITE_WO_MMIO(group_control, val);
-		break;
-
-	case debug_bus_control:
-		WRITE_WO_MMIO(debug_bus_control, val);
-		break;
-
-	case trace_address:
-		WRITE_WO_MMIO(trace_address, val);
-		break;
-
-	case ext_tr_timer:
-		WRITE_WO_MMIO(ext_tr_timer, val);
-		break;
-
-	case pm_status:
-		WRITE_WO_MMIO(pm_status, val);
-		break;
-
-	case pm_control:
-		WRITE_WO_MMIO(pm_control, val);
-		break;
-
-	case pm_interval:
-		WRITE_WO_MMIO(pm_interval, val);
-		break;
-
-	case pm_start_stop:
-		WRITE_WO_MMIO(pm_start_stop, val);
-		break;
-	}
-}
-EXPORT_SYMBOL_GPL(cbe_write_pm);
-
-/*
- * Get/set the size of a physical counter to either 16 or 32 bits.
- */
-
-u32 cbe_get_ctr_size(u32 cpu, u32 phys_ctr)
-{
-	u32 pm_ctrl, size = 0;
-
-	if (phys_ctr < NR_PHYS_CTRS) {
-		pm_ctrl = cbe_read_pm(cpu, pm_control);
-		size = (pm_ctrl & CBE_PM_16BIT_CTR(phys_ctr)) ? 16 : 32;
-	}
-
-	return size;
-}
-EXPORT_SYMBOL_GPL(cbe_get_ctr_size);
-
-void cbe_set_ctr_size(u32 cpu, u32 phys_ctr, u32 ctr_size)
-{
-	u32 pm_ctrl;
-
-	if (phys_ctr < NR_PHYS_CTRS) {
-		pm_ctrl = cbe_read_pm(cpu, pm_control);
-		switch (ctr_size) {
-		case 16:
-			pm_ctrl |= CBE_PM_16BIT_CTR(phys_ctr);
-			break;
-
-		case 32:
-			pm_ctrl &= ~CBE_PM_16BIT_CTR(phys_ctr);
-			break;
-		}
-		cbe_write_pm(cpu, pm_control, pm_ctrl);
-	}
-}
-EXPORT_SYMBOL_GPL(cbe_set_ctr_size);
-
-/*
- * Enable/disable the entire performance monitoring unit.
- * When we enable the PMU, all pending writes to counters get committed.
- */
-
-void cbe_enable_pm(u32 cpu)
-{
-	struct cbe_pmd_shadow_regs *shadow_regs;
-	u32 pm_ctrl;
-
-	shadow_regs = cbe_get_cpu_pmd_shadow_regs(cpu);
-	shadow_regs->counter_value_in_latch = 0;
-
-	pm_ctrl = cbe_read_pm(cpu, pm_control) | CBE_PM_ENABLE_PERF_MON;
-	cbe_write_pm(cpu, pm_control, pm_ctrl);
-}
-EXPORT_SYMBOL_GPL(cbe_enable_pm);
-
-void cbe_disable_pm(u32 cpu)
-{
-	u32 pm_ctrl;
-	pm_ctrl = cbe_read_pm(cpu, pm_control) & ~CBE_PM_ENABLE_PERF_MON;
-	cbe_write_pm(cpu, pm_control, pm_ctrl);
-}
-EXPORT_SYMBOL_GPL(cbe_disable_pm);
-
-/*
- * Reading from the trace_buffer.
- * The trace buffer is two 64-bit registers. Reading from
- * the second half automatically increments the trace_address.
- */
-
-void cbe_read_trace_buffer(u32 cpu, u64 *buf)
-{
-	struct cbe_pmd_regs __iomem *pmd_regs = cbe_get_cpu_pmd_regs(cpu);
-
-	*buf++ = in_be64(&pmd_regs->trace_buffer_0_63);
-	*buf++ = in_be64(&pmd_regs->trace_buffer_64_127);
-}
-EXPORT_SYMBOL_GPL(cbe_read_trace_buffer);
-
-/*
- * Enabling/disabling interrupts for the entire performance monitoring unit.
- */
-
-u32 cbe_get_and_clear_pm_interrupts(u32 cpu)
-{
-	/* Reading pm_status clears the interrupt bits. */
-	return cbe_read_pm(cpu, pm_status);
-}
-EXPORT_SYMBOL_GPL(cbe_get_and_clear_pm_interrupts);
-
-void cbe_enable_pm_interrupts(u32 cpu, u32 thread, u32 mask)
-{
-	/* Set which node and thread will handle the next interrupt. */
-	iic_set_interrupt_routing(cpu, thread, 0);
-
-	/* Enable the interrupt bits in the pm_status register. */
-	if (mask)
-		cbe_write_pm(cpu, pm_status, mask);
-}
-EXPORT_SYMBOL_GPL(cbe_enable_pm_interrupts);
-
-void cbe_disable_pm_interrupts(u32 cpu)
-{
-	cbe_get_and_clear_pm_interrupts(cpu);
-	cbe_write_pm(cpu, pm_status, 0);
-}
-EXPORT_SYMBOL_GPL(cbe_disable_pm_interrupts);
-
-static irqreturn_t cbe_pm_irq(int irq, void *dev_id)
-{
-	perf_irq(get_irq_regs());
-	return IRQ_HANDLED;
-}
-
-static int __init cbe_init_pm_irq(void)
-{
-	unsigned int irq;
-	int rc, node;
-
-	for_each_online_node(node) {
-		irq = irq_create_mapping(NULL, IIC_IRQ_IOEX_PMI |
-					       (node << IIC_IRQ_NODE_SHIFT));
-		if (!irq) {
-			printk("ERROR: Unable to allocate irq for node %d\n",
-			       node);
-			return -EINVAL;
-		}
-
-		rc = request_irq(irq, cbe_pm_irq,
-				 0, "cbe-pmu-0", NULL);
-		if (rc) {
-			printk("ERROR: Request for irq on node %d failed\n",
-			       node);
-			return rc;
-		}
-	}
-
-	return 0;
-}
-machine_arch_initcall(cell, cbe_init_pm_irq);
-
-void cbe_sync_irq(int node)
-{
-	unsigned int irq;
-
-	irq = irq_find_mapping(NULL,
-			       IIC_IRQ_IOEX_PMI
-			       | (node << IIC_IRQ_NODE_SHIFT));
-
-	if (!irq) {
-		printk(KERN_WARNING "ERROR, unable to get existing irq %d " \
-		"for node %d\n", irq, node);
-		return;
-	}
-
-	synchronize_irq(irq);
-}
-EXPORT_SYMBOL_GPL(cbe_sync_irq);
-

arch/powerpc/platforms/cell/ras.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright 2006-2008, IBM Corporation.
- */
-
-#undef DEBUG
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/smp.h>
-#include <linux/reboot.h>
-#include <linux/kexec.h>
-#include <linux/crash_dump.h>
-#include <linux/of.h>
-
-#include <asm/kexec.h>
-#include <asm/reg.h>
-#include <asm/io.h>
-#include <asm/machdep.h>
-#include <asm/rtas.h>
-#include <asm/cell-regs.h>
-
-#include "ras.h"
-#include "pervasive.h"
-
-static void dump_fir(int cpu)
-{
-	struct cbe_pmd_regs __iomem *pregs = cbe_get_cpu_pmd_regs(cpu);
-	struct cbe_iic_regs __iomem *iregs = cbe_get_cpu_iic_regs(cpu);
-
-	if (pregs == NULL)
-		return;
-
-	/* Todo: do some nicer parsing of bits and based on them go down
-	 * to other sub-units FIRs and not only IIC
-	 */
-	printk(KERN_ERR "Global Checkstop FIR    : 0x%016llx\n",
-	       in_be64(&pregs->checkstop_fir));
-	printk(KERN_ERR "Global Recoverable FIR  : 0x%016llx\n",
-	       in_be64(&pregs->checkstop_fir));
-	printk(KERN_ERR "Global MachineCheck FIR : 0x%016llx\n",
-	       in_be64(&pregs->spec_att_mchk_fir));
-
-	if (iregs == NULL)
-		return;
-	printk(KERN_ERR "IOC FIR                 : 0x%016llx\n",
-	       in_be64(&iregs->ioc_fir));
-
-}
-
-DEFINE_INTERRUPT_HANDLER(cbe_system_error_exception)
-{
-	int cpu = smp_processor_id();
-
-	printk(KERN_ERR "System Error Interrupt on CPU %d !\n", cpu);
-	dump_fir(cpu);
-	dump_stack();
-}
-
-DEFINE_INTERRUPT_HANDLER(cbe_maintenance_exception)
-{
-	int cpu = smp_processor_id();
-
-	/*
-	 * Nothing implemented for the maintenance interrupt at this point
-	 */
-
-	printk(KERN_ERR "Unhandled Maintenance interrupt on CPU %d !\n", cpu);
-	dump_stack();
-}
-
-DEFINE_INTERRUPT_HANDLER(cbe_thermal_exception)
-{
-	int cpu = smp_processor_id();
-
-	/*
-	 * Nothing implemented for the thermal interrupt at this point
-	 */
-
-	printk(KERN_ERR "Unhandled Thermal interrupt on CPU %d !\n", cpu);
-	dump_stack();
-}
-
-static int cbe_machine_check_handler(struct pt_regs *regs)
-{
-	int cpu = smp_processor_id();
-
-	printk(KERN_ERR "Machine Check Interrupt on CPU %d !\n", cpu);
-	dump_fir(cpu);
-
-	/* No recovery from this code now, lets continue */
-	return 0;
-}
-
-struct ptcal_area {
-	struct list_head list;
-	int nid;
-	int order;
-	struct page *pages;
-};
-
-static LIST_HEAD(ptcal_list);
-
-static int ptcal_start_tok, ptcal_stop_tok;
-
-static int __init cbe_ptcal_enable_on_node(int nid, int order)
-{
-	struct ptcal_area *area;
-	int ret = -ENOMEM;
-	unsigned long addr;
-
-	if (is_kdump_kernel())
-		rtas_call(ptcal_stop_tok, 1, 1, NULL, nid);
-
-	area = kmalloc(sizeof(*area), GFP_KERNEL);
-	if (!area)
-		goto out_err;
-
-	area->nid = nid;
-	area->order = order;
-	area->pages = __alloc_pages_node(area->nid,
-						GFP_KERNEL|__GFP_THISNODE,
-						area->order);
-
-	if (!area->pages) {
-		printk(KERN_WARNING "%s: no page on node %d\n",
-			__func__, area->nid);
-		goto out_free_area;
-	}
-
-	/*
-	 * We move the ptcal area to the middle of the allocated
-	 * page, in order to avoid prefetches in memcpy and similar
-	 * functions stepping on it.
-	 */
-	addr = __pa(page_address(area->pages)) + (PAGE_SIZE >> 1);
-	printk(KERN_DEBUG "%s: enabling PTCAL on node %d address=0x%016lx\n",
-			__func__, area->nid, addr);
-
-	ret = -EIO;
-	if (rtas_call(ptcal_start_tok, 3, 1, NULL, area->nid,
-				(unsigned int)(addr >> 32),
-				(unsigned int)(addr & 0xffffffff))) {
-		printk(KERN_ERR "%s: error enabling PTCAL on node %d!\n",
-				__func__, nid);
-		goto out_free_pages;
-	}
-
-	list_add(&area->list, &ptcal_list);
-
-	return 0;
-
-out_free_pages:
-	__free_pages(area->pages, area->order);
-out_free_area:
-	kfree(area);
-out_err:
-	return ret;
-}
-
-static int __init cbe_ptcal_enable(void)
-{
-	const u32 *size;
-	struct device_node *np;
-	int order, found_mic = 0;
-
-	np = of_find_node_by_path("/rtas");
-	if (!np)
-		return -ENODEV;
-
-	size = of_get_property(np, "ibm,cbe-ptcal-size", NULL);
-	if (!size) {
-		of_node_put(np);
-		return -ENODEV;
-	}
-
-	pr_debug("%s: enabling PTCAL, size = 0x%x\n", __func__, *size);
-	order = get_order(*size);
-	of_node_put(np);
-
-	/* support for malta device trees, with be@/mic@ nodes */
-	for_each_node_by_type(np, "mic-tm") {
-		cbe_ptcal_enable_on_node(of_node_to_nid(np), order);
-		found_mic = 1;
-	}
-
-	if (found_mic)
-		return 0;
-
-	/* support for older device tree - use cpu nodes */
-	for_each_node_by_type(np, "cpu") {
-		const u32 *nid = of_get_property(np, "node-id", NULL);
-		if (!nid) {
-			printk(KERN_ERR "%s: node %pOF is missing node-id?\n",
-					__func__, np);
-			continue;
-		}
-		cbe_ptcal_enable_on_node(*nid, order);
-		found_mic = 1;
-	}
-
-	return found_mic ? 0 : -ENODEV;
-}
-
-static int cbe_ptcal_disable(void)
-{
-	struct ptcal_area *area, *tmp;
-	int ret = 0;
-
-	pr_debug("%s: disabling PTCAL\n", __func__);
-
-	list_for_each_entry_safe(area, tmp, &ptcal_list, list) {
-		/* disable ptcal on this node */
-		if (rtas_call(ptcal_stop_tok, 1, 1, NULL, area->nid)) {
-			printk(KERN_ERR "%s: error disabling PTCAL "
-					"on node %d!\n", __func__,
-					area->nid);
-			ret = -EIO;
-			continue;
-		}
-
-		/* ensure we can access the PTCAL area */
-		memset(page_address(area->pages), 0,
-				1 << (area->order + PAGE_SHIFT));
-
-		/* clean up */
-		list_del(&area->list);
-		__free_pages(area->pages, area->order);
-		kfree(area);
-	}
-
-	return ret;
-}
-
-static int cbe_ptcal_notify_reboot(struct notifier_block *nb,
-		unsigned long code, void *data)
-{
-	return cbe_ptcal_disable();
-}
-
-static void cbe_ptcal_crash_shutdown(void)
-{
-	cbe_ptcal_disable();
-}
-
-static struct notifier_block cbe_ptcal_reboot_notifier = {
-	.notifier_call = cbe_ptcal_notify_reboot
-};
-
-#ifdef CONFIG_PPC_IBM_CELL_RESETBUTTON
-static int sysreset_hack;
-
-static int __init cbe_sysreset_init(void)
-{
-	struct cbe_pmd_regs __iomem *regs;
-
-	sysreset_hack = of_machine_is_compatible("IBM,CBPLUS-1.0");
-	if (!sysreset_hack)
-		return 0;
-
-	regs = cbe_get_cpu_pmd_regs(0);
-	if (!regs)
-		return 0;
-
-	/* Enable JTAG system-reset hack */
-	out_be32(&regs->fir_mode_reg,
-		in_be32(&regs->fir_mode_reg) |
-		CBE_PMD_FIR_MODE_M8);
-
-	return 0;
-}
-device_initcall(cbe_sysreset_init);
-
-int cbe_sysreset_hack(void)
-{
-	struct cbe_pmd_regs __iomem *regs;
-
-	/*
-	 * The BMC can inject user triggered system reset exceptions,
-	 * but cannot set the system reset reason in srr1,
-	 * so check an extra register here.
-	 */
-	if (sysreset_hack && (smp_processor_id() == 0)) {
-		regs = cbe_get_cpu_pmd_regs(0);
-		if (!regs)
-			return 0;
-		if (in_be64(&regs->ras_esc_0) & 0x0000ffff) {
-			out_be64(&regs->ras_esc_0, 0);
-			return 0;
-		}
-	}
-	return 1;
-}
-#endif /* CONFIG_PPC_IBM_CELL_RESETBUTTON */
-
-static int __init cbe_ptcal_init(void)
-{
-	int ret;
-	ptcal_start_tok = rtas_function_token(RTAS_FN_IBM_CBE_START_PTCAL);
-	ptcal_stop_tok = rtas_function_token(RTAS_FN_IBM_CBE_STOP_PTCAL);
-
-	if (ptcal_start_tok == RTAS_UNKNOWN_SERVICE
-			|| ptcal_stop_tok == RTAS_UNKNOWN_SERVICE)
-		return -ENODEV;
-
-	ret = register_reboot_notifier(&cbe_ptcal_reboot_notifier);
-	if (ret)
-		goto out1;
-
-	ret = crash_shutdown_register(&cbe_ptcal_crash_shutdown);
-	if (ret)
-		goto out2;
-
-	return cbe_ptcal_enable();
-
-out2:
-	unregister_reboot_notifier(&cbe_ptcal_reboot_notifier);
-out1:
-	printk(KERN_ERR "Can't disable PTCAL, so not enabling\n");
-	return ret;
-}
-
-arch_initcall(cbe_ptcal_init);
-
-void __init cbe_ras_init(void)
-{
-	unsigned long hid0;
-
-	/*
-	 * Enable System Error & thermal interrupts and wakeup conditions
-	 */
-
-	hid0 = mfspr(SPRN_HID0);
-	hid0 |= HID0_CBE_THERM_INT_EN | HID0_CBE_THERM_WAKEUP |
-		HID0_CBE_SYSERR_INT_EN | HID0_CBE_SYSERR_WAKEUP;
-	mtspr(SPRN_HID0, hid0);
-	mb();
-
-	/*
-	 * Install machine check handler. Leave setting of precise mode to
-	 * what the firmware did for now
-	 */
-	ppc_md.machine_check_exception = cbe_machine_check_handler;
-	mb();
-
-	/*
-	 * For now, we assume that IOC_FIR is already set to forward some
-	 * error conditions to the System Error handler. If that is not true
-	 * then it will have to be fixed up here.
-	 */
-}

arch/powerpc/platforms/cell/ras.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef RAS_H
-#define RAS_H
-
-#include <asm/interrupt.h>
-
-DECLARE_INTERRUPT_HANDLER(cbe_system_error_exception);
-DECLARE_INTERRUPT_HANDLER(cbe_maintenance_exception);
-DECLARE_INTERRUPT_HANDLER(cbe_thermal_exception);
-
-extern void cbe_ras_init(void);
-
-#endif /* RAS_H */

arch/powerpc/platforms/cell/setup.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- *  linux/arch/powerpc/platforms/cell/cell_setup.c
- *
- *  Copyright (C) 1995  Linus Torvalds
- *  Adapted from 'alpha' version by Gary Thomas
- *  Modified by Cort Dougan ([e-mail])
- *  Modified by PPC64 Team, IBM Corp
- *  Modified by Cell Team, IBM Deutschland Entwicklung GmbH
- */
-#undef DEBUG
-
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/stddef.h>
-#include <linux/export.h>
-#include <linux/unistd.h>
-#include <linux/user.h>
-#include <linux/reboot.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/irq.h>
-#include <linux/seq_file.h>
-#include <linux/root_dev.h>
-#include <linux/console.h>
-#include <linux/mutex.h>
-#include <linux/memory_hotplug.h>
-#include <linux/of_platform.h>
-#include <linux/platform_device.h>
-
-#include <asm/mmu.h>
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/rtas.h>
-#include <asm/pci-bridge.h>
-#include <asm/iommu.h>
-#include <asm/dma.h>
-#include <asm/machdep.h>
-#include <asm/time.h>
-#include <asm/nvram.h>
-#include <asm/cputable.h>
-#include <asm/ppc-pci.h>
-#include <asm/irq.h>
-#include <asm/spu.h>
-#include <asm/spu_priv1.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-#include <asm/cell-regs.h>
-#include <asm/io-workarounds.h>
-
-#include "cell.h"
-#include "interrupt.h"
-#include "pervasive.h"
-#include "ras.h"
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-static void cell_show_cpuinfo(struct seq_file *m)
-{
-	struct device_node *root;
-	const char *model = "";
-
-	root = of_find_node_by_path("/");
-	if (root)
-		model = of_get_property(root, "model", NULL);
-	seq_printf(m, "machine\t\t: CHRP %s\n", model);
-	of_node_put(root);
-}
-
-static void cell_progress(char *s, unsigned short hex)
-{
-	printk("*** %04x : %s\n", hex, s ? s : "");
-}
-
-static void cell_fixup_pcie_rootcomplex(struct pci_dev *dev)
-{
-	struct pci_controller *hose;
-	const char *s;
-	int i;
-
-	if (!machine_is(cell))
-		return;
-
-	/* We're searching for a direct child of the PHB */
-	if (dev->bus->self != NULL || dev->devfn != 0)
-		return;
-
-	hose = pci_bus_to_host(dev->bus);
-	if (hose == NULL)
-		return;
-
-	/* Only on PCIE */
-	if (!of_device_is_compatible(hose->dn, "pciex"))
-		return;
-
-	/* And only on axon */
-	s = of_get_property(hose->dn, "model", NULL);
-	if (!s || strcmp(s, "Axon") != 0)
-		return;
-
-	for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
-		dev->resource[i].start = dev->resource[i].end = 0;
-		dev->resource[i].flags = 0;
-	}
-
-	printk(KERN_DEBUG "PCI: Hiding resources on Axon PCIE RC %s\n",
-	       pci_name(dev));
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, cell_fixup_pcie_rootcomplex);
-
-static int cell_setup_phb(struct pci_controller *phb)
-{
-	const char *model;
-	struct device_node *np;
-
-	int rc = rtas_setup_phb(phb);
-	if (rc)
-		return rc;
-
-	phb->controller_ops = cell_pci_controller_ops;
-
-	np = phb->dn;
-	model = of_get_property(np, "model", NULL);
-	if (model == NULL || !of_node_name_eq(np, "pci"))
-		return 0;
-
-	/* Setup workarounds for spider */
-	if (strcmp(model, "Spider"))
-		return 0;
-
-	iowa_register_bus(phb, &spiderpci_ops, &spiderpci_iowa_init,
-				  (void *)SPIDER_PCI_REG_BASE);
-	return 0;
-}
-
-static const struct of_device_id cell_bus_ids[] __initconst = {
-	{ .type = "soc", },
-	{ .compatible = "soc", },
-	{ .type = "spider", },
-	{ .type = "axon", },
-	{ .type = "plb5", },
-	{ .type = "plb4", },
-	{ .type = "opb", },
-	{ .type = "ebc", },
-	{},
-};
-
-static int __init cell_publish_devices(void)
-{
-	struct device_node *root = of_find_node_by_path("/");
-	struct device_node *np;
-	int node;
-
-	/* Publish OF platform devices for southbridge IOs */
-	of_platform_bus_probe(NULL, cell_bus_ids, NULL);
-
-	/* On spider based blades, we need to manually create the OF
-	 * platform devices for the PCI host bridges
-	 */
-	for_each_child_of_node(root, np) {
-		if (!of_node_is_type(np, "pci") && !of_node_is_type(np, "pciex"))
-			continue;
-		of_platform_device_create(np, NULL, NULL);
-	}
-
-	of_node_put(root);
-
-	/* There is no device for the MIC memory controller, thus we create
-	 * a platform device for it to attach the EDAC driver to.
-	 */
-	for_each_online_node(node) {
-		if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
-			continue;
-		platform_device_register_simple("cbe-mic", node, NULL, 0);
-	}
-
-	return 0;
-}
-machine_subsys_initcall(cell, cell_publish_devices);
-
-static void __init mpic_init_IRQ(void)
-{
-	struct device_node *dn;
-	struct mpic *mpic;
-
-	for_each_node_by_name(dn, "interrupt-controller") {
-		if (!of_device_is_compatible(dn, "CBEA,platform-open-pic"))
-			continue;
-
-		/* The MPIC driver will get everything it needs from the
-		 * device-tree, just pass 0 to all arguments
-		 */
-		mpic = mpic_alloc(dn, 0, MPIC_SECONDARY | MPIC_NO_RESET,
-				0, 0, " MPIC     ");
-		if (mpic == NULL)
-			continue;
-		mpic_init(mpic);
-	}
-}
-
-
-static void __init cell_init_irq(void)
-{
-	iic_init_IRQ();
-	spider_init_IRQ();
-	mpic_init_IRQ();
-}
-
-static void __init cell_set_dabrx(void)
-{
-	mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER);
-}
-
-static void __init cell_setup_arch(void)
-{
-#ifdef CONFIG_SPU_BASE
-	spu_priv1_ops = &spu_priv1_mmio_ops;
-	spu_management_ops = &spu_management_of_ops;
-#endif
-
-	cbe_regs_init();
-
-	cell_set_dabrx();
-
-#ifdef CONFIG_CBE_RAS
-	cbe_ras_init();
-#endif
-
-#ifdef CONFIG_SMP
-	smp_init_cell();
-#endif
-	/* init to some ~sane value until calibrate_delay() runs */
-	loops_per_jiffy = 50000000;
-
-	/* Find and initialize PCI host bridges */
-	init_pci_config_tokens();
-
-	cbe_pervasive_init();
-
-	mmio_nvram_init();
-}
-
-static int __init cell_probe(void)
-{
-	if (!of_machine_is_compatible("IBM,CBEA") &&
-	    !of_machine_is_compatible("IBM,CPBW-1.0"))
-		return 0;
-
-	pm_power_off = rtas_power_off;
-
-	return 1;
-}
-
-define_machine(cell) {
-	.name			= "Cell",
-	.probe			= cell_probe,
-	.setup_arch		= cell_setup_arch,
-	.show_cpuinfo		= cell_show_cpuinfo,
-	.restart		= rtas_restart,
-	.halt			= rtas_halt,
-	.get_boot_time		= rtas_get_boot_time,
-	.get_rtc_time		= rtas_get_rtc_time,
-	.set_rtc_time		= rtas_set_rtc_time,
-	.progress		= cell_progress,
-	.init_IRQ       	= cell_init_irq,
-	.pci_setup_phb		= cell_setup_phb,
-};
-
-struct pci_controller_ops cell_pci_controller_ops;

arch/powerpc/platforms/cell/smp.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * SMP support for BPA machines.
- *
- * Dave Engebretsen, Peter Bergner, and
- * Mike Corrigan {engebret|bergner|mikec}@us.ibm.com
- *
- * Plus various changes from other IBM teams...
- */
-
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/cache.h>
-#include <linux/err.h>
-#include <linux/device.h>
-#include <linux/cpu.h>
-#include <linux/pgtable.h>
-
-#include <asm/ptrace.h>
-#include <linux/atomic.h>
-#include <asm/irq.h>
-#include <asm/page.h>
-#include <asm/io.h>
-#include <asm/smp.h>
-#include <asm/paca.h>
-#include <asm/machdep.h>
-#include <asm/cputable.h>
-#include <asm/firmware.h>
-#include <asm/rtas.h>
-#include <asm/cputhreads.h>
-#include <asm/text-patching.h>
-
-#include "interrupt.h"
-#include <asm/udbg.h>
-
-#ifdef DEBUG
-#define DBG(fmt...) udbg_printf(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
-/*
- * The Primary thread of each non-boot processor was started from the OF client
- * interface by prom_hold_cpus and is spinning on secondary_hold_spinloop.
- */
-static cpumask_t of_spin_map;
-
-/**
- * smp_startup_cpu() - start the given cpu
- * @lcpu: Logical CPU ID of the CPU to be started.
- *
- * At boot time, there is nothing to do for primary threads which were
- * started from Open Firmware.  For anything else, call RTAS with the
- * appropriate start location.
- *
- * Returns:
- *	0	- failure
- *	1	- success
- */
-static inline int smp_startup_cpu(unsigned int lcpu)
-{
-	int status;
-	unsigned long start_here =
-			__pa(ppc_function_entry(generic_secondary_smp_init));
-	unsigned int pcpu;
-	int start_cpu;
-
-	if (cpumask_test_cpu(lcpu, &of_spin_map))
-		/* Already started by OF and sitting in spin loop */
-		return 1;
-
-	pcpu = get_hard_smp_processor_id(lcpu);
-
-	/*
-	 * If the RTAS start-cpu token does not exist then presume the
-	 * cpu is already spinning.
-	 */
-	start_cpu = rtas_function_token(RTAS_FN_START_CPU);
-	if (start_cpu == RTAS_UNKNOWN_SERVICE)
-		return 1;
-
-	status = rtas_call(start_cpu, 3, 1, NULL, pcpu, start_here, lcpu);
-	if (status != 0) {
-		printk(KERN_ERR "start-cpu failed: %i\n", status);
-		return 0;
-	}
-
-	return 1;
-}
-
-static void smp_cell_setup_cpu(int cpu)
-{
-	if (cpu != boot_cpuid)
-		iic_setup_cpu();
-
-	/*
-	 * change default DABRX to allow user watchpoints
-	 */
-	mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER);
-}
-
-static int smp_cell_kick_cpu(int nr)
-{
-	if (nr < 0 || nr >= nr_cpu_ids)
-		return -EINVAL;
-
-	if (!smp_startup_cpu(nr))
-		return -ENOENT;
-
-	/*
-	 * The processor is currently spinning, waiting for the
-	 * cpu_start field to become non-zero After we set cpu_start,
-	 * the processor will continue on to secondary_start
-	 */
-	paca_ptrs[nr]->cpu_start = 1;
-
-	return 0;
-}
-
-static struct smp_ops_t bpa_iic_smp_ops = {
-	.message_pass	= iic_message_pass,
-	.probe		= iic_request_IPIs,
-	.kick_cpu	= smp_cell_kick_cpu,
-	.setup_cpu	= smp_cell_setup_cpu,
-	.cpu_bootable	= smp_generic_cpu_bootable,
-};
-
-/* This is called very early */
-void __init smp_init_cell(void)
-{
-	int i;
-
-	DBG(" -> smp_init_cell()\n");
-
-	smp_ops = &bpa_iic_smp_ops;
-
-	/* Mark threads which are still spinning in hold loops. */
-	if (cpu_has_feature(CPU_FTR_SMT)) {
-		for_each_present_cpu(i) {
-			if (cpu_thread_in_core(i) == 0)
-				cpumask_set_cpu(i, &of_spin_map);
-		}
-	} else
-		cpumask_copy(&of_spin_map, cpu_present_mask);
-
-	cpumask_clear_cpu(boot_cpuid, &of_spin_map);
-
-	/* Non-lpar has additional take/give timebase */
-	if (rtas_function_token(RTAS_FN_FREEZE_TIME_BASE) != RTAS_UNKNOWN_SERVICE) {
-		smp_ops->give_timebase = rtas_give_timebase;
-		smp_ops->take_timebase = rtas_take_timebase;
-	}
-
-	DBG(" <- smp_init_cell()\n");
-}

arch/powerpc/platforms/cell/spider-pci.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * IO workarounds for PCI on Celleb/Cell platform
- *
- * (C) Copyright 2006-2007 TOSHIBA CORPORATION
- */
-
-#undef DEBUG
-
-#include <linux/kernel.h>
-#include <linux/of_address.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-
-#include <asm/ppc-pci.h>
-#include <asm/pci-bridge.h>
-#include <asm/io-workarounds.h>
-
-#define SPIDER_PCI_DISABLE_PREFETCH
-
-struct spiderpci_iowa_private {
-	void __iomem *regs;
-};
-
-static void spiderpci_io_flush(struct iowa_bus *bus)
-{
-	struct spiderpci_iowa_private *priv;
-
-	priv = bus->private;
-	in_be32(priv->regs + SPIDER_PCI_DUMMY_READ);
-	iosync();
-}
-
-#define SPIDER_PCI_MMIO_READ(name, ret)					\
-static ret spiderpci_##name(const PCI_IO_ADDR addr)			\
-{									\
-	ret val = __do_##name(addr);					\
-	spiderpci_io_flush(iowa_mem_find_bus(addr));			\
-	return val;							\
-}
-
-#define SPIDER_PCI_MMIO_READ_STR(name)					\
-static void spiderpci_##name(const PCI_IO_ADDR addr, void *buf, 	\
-			     unsigned long count)			\
-{									\
-	__do_##name(addr, buf, count);					\
-	spiderpci_io_flush(iowa_mem_find_bus(addr));			\
-}
-
-SPIDER_PCI_MMIO_READ(readb, u8)
-SPIDER_PCI_MMIO_READ(readw, u16)
-SPIDER_PCI_MMIO_READ(readl, u32)
-SPIDER_PCI_MMIO_READ(readq, u64)
-SPIDER_PCI_MMIO_READ(readw_be, u16)
-SPIDER_PCI_MMIO_READ(readl_be, u32)
-SPIDER_PCI_MMIO_READ(readq_be, u64)
-SPIDER_PCI_MMIO_READ_STR(readsb)
-SPIDER_PCI_MMIO_READ_STR(readsw)
-SPIDER_PCI_MMIO_READ_STR(readsl)
-
-static void spiderpci_memcpy_fromio(void *dest, const PCI_IO_ADDR src,
-				    unsigned long n)
-{
-	__do_memcpy_fromio(dest, src, n);
-	spiderpci_io_flush(iowa_mem_find_bus(src));
-}
-
-static int __init spiderpci_pci_setup_chip(struct pci_controller *phb,
-					   void __iomem *regs)
-{
-	void *dummy_page_va;
-	dma_addr_t dummy_page_da;
-
-#ifdef SPIDER_PCI_DISABLE_PREFETCH
-	u32 val = in_be32(regs + SPIDER_PCI_VCI_CNTL_STAT);
-	pr_debug("SPIDER_IOWA:PVCI_Control_Status was 0x%08x\n", val);
-	out_be32(regs + SPIDER_PCI_VCI_CNTL_STAT, val | 0x8);
-#endif /* SPIDER_PCI_DISABLE_PREFETCH */
-
-	/* setup dummy read */
-	/*
-	 * On CellBlade, we can't know that which XDR memory is used by
-	 * kmalloc() to allocate dummy_page_va.
-	 * In order to improve the performance, the XDR which is used to
-	 * allocate dummy_page_va is the nearest the spider-pci.
-	 * We have to select the CBE which is the nearest the spider-pci
-	 * to allocate memory from the best XDR, but I don't know that
-	 * how to do.
-	 *
-	 * Celleb does not have this problem, because it has only one XDR.
-	 */
-	dummy_page_va = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!dummy_page_va) {
-		pr_err("SPIDERPCI-IOWA:Alloc dummy_page_va failed.\n");
-		return -1;
-	}
-
-	dummy_page_da = dma_map_single(phb->parent, dummy_page_va,
-				       PAGE_SIZE, DMA_FROM_DEVICE);
-	if (dma_mapping_error(phb->parent, dummy_page_da)) {
-		pr_err("SPIDER-IOWA:Map dummy page filed.\n");
-		kfree(dummy_page_va);
-		return -1;
-	}
-
-	out_be32(regs + SPIDER_PCI_DUMMY_READ_BASE, dummy_page_da);
-
-	return 0;
-}
-
-int __init spiderpci_iowa_init(struct iowa_bus *bus, void *data)
-{
-	void __iomem *regs = NULL;
-	struct spiderpci_iowa_private *priv;
-	struct device_node *np = bus->phb->dn;
-	struct resource r;
-	unsigned long offset = (unsigned long)data;
-
-	pr_debug("SPIDERPCI-IOWA:Bus initialize for spider(%pOF)\n",
-		 np);
-
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv) {
-		pr_err("SPIDERPCI-IOWA:"
-		       "Can't allocate struct spiderpci_iowa_private");
-		return -1;
-	}
-
-	if (of_address_to_resource(np, 0, &r)) {
-		pr_err("SPIDERPCI-IOWA:Can't get resource.\n");
-		goto error;
-	}
-
-	regs = ioremap(r.start + offset, SPIDER_PCI_REG_SIZE);
-	if (!regs) {
-		pr_err("SPIDERPCI-IOWA:ioremap failed.\n");
-		goto error;
-	}
-	priv->regs = regs;
-	bus->private = priv;
-
-	if (spiderpci_pci_setup_chip(bus->phb, regs))
-		goto error;
-
-	return 0;
-
-error:
-	kfree(priv);
-	bus->private = NULL;
-
-	if (regs)
-		iounmap(regs);
-
-	return -1;
-}
-
-struct ppc_pci_io spiderpci_ops = {
-	.readb = spiderpci_readb,
-	.readw = spiderpci_readw,
-	.readl = spiderpci_readl,
-	.readq = spiderpci_readq,
-	.readw_be = spiderpci_readw_be,
-	.readl_be = spiderpci_readl_be,
-	.readq_be = spiderpci_readq_be,
-	.readsb = spiderpci_readsb,
-	.readsw = spiderpci_readsw,
-	.readsl = spiderpci_readsl,
-	.memcpy_fromio = spiderpci_memcpy_fromio,
-};
-

arch/powerpc/platforms/cell/spider-pic.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * External Interrupt Controller on Spider South Bridge
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- *
- * Author: Arnd Bergmann <[e-mail]>
- */
-
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/ioport.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/pgtable.h>
-
-#include <asm/io.h>
-
-#include "interrupt.h"
-
-/* register layout taken from Spider spec, table 7.4-4 */
-enum {
-	TIR_DEN		= 0x004, /* Detection Enable Register */
-	TIR_MSK		= 0x084, /* Mask Level Register */
-	TIR_EDC		= 0x0c0, /* Edge Detection Clear Register */
-	TIR_PNDA	= 0x100, /* Pending Register A */
-	TIR_PNDB	= 0x104, /* Pending Register B */
-	TIR_CS		= 0x144, /* Current Status Register */
-	TIR_LCSA	= 0x150, /* Level Current Status Register A */
-	TIR_LCSB	= 0x154, /* Level Current Status Register B */
-	TIR_LCSC	= 0x158, /* Level Current Status Register C */
-	TIR_LCSD	= 0x15c, /* Level Current Status Register D */
-	TIR_CFGA	= 0x200, /* Setting Register A0 */
-	TIR_CFGB	= 0x204, /* Setting Register B0 */
-			/* 0x208 ... 0x3ff Setting Register An/Bn */
-	TIR_PPNDA	= 0x400, /* Packet Pending Register A */
-	TIR_PPNDB	= 0x404, /* Packet Pending Register B */
-	TIR_PIERA	= 0x408, /* Packet Output Error Register A */
-	TIR_PIERB	= 0x40c, /* Packet Output Error Register B */
-	TIR_PIEN	= 0x444, /* Packet Output Enable Register */
-	TIR_PIPND	= 0x454, /* Packet Output Pending Register */
-	TIRDID		= 0x484, /* Spider Device ID Register */
-	REISTIM		= 0x500, /* Reissue Command Timeout Time Setting */
-	REISTIMEN	= 0x504, /* Reissue Command Timeout Setting */
-	REISWAITEN	= 0x508, /* Reissue Wait Control*/
-};
-
-#define SPIDER_CHIP_COUNT	4
-#define SPIDER_SRC_COUNT	64
-#define SPIDER_IRQ_INVALID	63
-
-struct spider_pic {
-	struct irq_domain		*host;
-	void __iomem		*regs;
-	unsigned int		node_id;
-};
-static struct spider_pic spider_pics[SPIDER_CHIP_COUNT];
-
-static struct spider_pic *spider_irq_data_to_pic(struct irq_data *d)
-{
-	return irq_data_get_irq_chip_data(d);
-}
-
-static void __iomem *spider_get_irq_config(struct spider_pic *pic,
-					   unsigned int src)
-{
-	return pic->regs + TIR_CFGA + 8 * src;
-}
-
-static void spider_unmask_irq(struct irq_data *d)
-{
-	struct spider_pic *pic = spider_irq_data_to_pic(d);
-	void __iomem *cfg = spider_get_irq_config(pic, irqd_to_hwirq(d));
-
-	out_be32(cfg, in_be32(cfg) | 0x30000000u);
-}
-
-static void spider_mask_irq(struct irq_data *d)
-{
-	struct spider_pic *pic = spider_irq_data_to_pic(d);
-	void __iomem *cfg = spider_get_irq_config(pic, irqd_to_hwirq(d));
-
-	out_be32(cfg, in_be32(cfg) & ~0x30000000u);
-}
-
-static void spider_ack_irq(struct irq_data *d)
-{
-	struct spider_pic *pic = spider_irq_data_to_pic(d);
-	unsigned int src = irqd_to_hwirq(d);
-
-	/* Reset edge detection logic if necessary
-	 */
-	if (irqd_is_level_type(d))
-		return;
-
-	/* Only interrupts 47 to 50 can be set to edge */
-	if (src < 47 || src > 50)
-		return;
-
-	/* Perform the clear of the edge logic */
-	out_be32(pic->regs + TIR_EDC, 0x100 | (src & 0xf));
-}
-
-static int spider_set_irq_type(struct irq_data *d, unsigned int type)
-{
-	unsigned int sense = type & IRQ_TYPE_SENSE_MASK;
-	struct spider_pic *pic = spider_irq_data_to_pic(d);
-	unsigned int hw = irqd_to_hwirq(d);
-	void __iomem *cfg = spider_get_irq_config(pic, hw);
-	u32 old_mask;
-	u32 ic;
-
-	/* Note that only level high is supported for most interrupts */
-	if (sense != IRQ_TYPE_NONE && sense != IRQ_TYPE_LEVEL_HIGH &&
-	    (hw < 47 || hw > 50))
-		return -EINVAL;
-
-	/* Decode sense type */
-	switch(sense) {
-	case IRQ_TYPE_EDGE_RISING:
-		ic = 0x3;
-		break;
-	case IRQ_TYPE_EDGE_FALLING:
-		ic = 0x2;
-		break;
-	case IRQ_TYPE_LEVEL_LOW:
-		ic = 0x0;
-		break;
-	case IRQ_TYPE_LEVEL_HIGH:
-	case IRQ_TYPE_NONE:
-		ic = 0x1;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	/* Configure the source. One gross hack that was there before and
-	 * that I've kept around is the priority to the BE which I set to
-	 * be the same as the interrupt source number. I don't know whether
-	 * that's supposed to make any kind of sense however, we'll have to
-	 * decide that, but for now, I'm not changing the behaviour.
-	 */
-	old_mask = in_be32(cfg) & 0x30000000u;
-	out_be32(cfg, old_mask | (ic << 24) | (0x7 << 16) |
-		 (pic->node_id << 4) | 0xe);
-	out_be32(cfg + 4, (0x2 << 16) | (hw & 0xff));
-
-	return 0;
-}
-
-static struct irq_chip spider_pic = {
-	.name = "SPIDER",
-	.irq_unmask = spider_unmask_irq,
-	.irq_mask = spider_mask_irq,
-	.irq_ack = spider_ack_irq,
-	.irq_set_type = spider_set_irq_type,
-};
-
-static int spider_host_map(struct irq_domain *h, unsigned int virq,
-			irq_hw_number_t hw)
-{
-	irq_set_chip_data(virq, h->host_data);
-	irq_set_chip_and_handler(virq, &spider_pic, handle_level_irq);
-
-	/* Set default irq type */
-	irq_set_irq_type(virq, IRQ_TYPE_NONE);
-
-	return 0;
-}
-
-static int spider_host_xlate(struct irq_domain *h, struct device_node *ct,
-			   const u32 *intspec, unsigned int intsize,
-			   irq_hw_number_t *out_hwirq, unsigned int *out_flags)
-
-{
-	/* Spider interrupts have 2 cells, first is the interrupt source,
-	 * second, well, I don't know for sure yet ... We mask the top bits
-	 * because old device-trees encode a node number in there
-	 */
-	*out_hwirq = intspec[0] & 0x3f;
-	*out_flags = IRQ_TYPE_LEVEL_HIGH;
-	return 0;
-}
-
-static const struct irq_domain_ops spider_host_ops = {
-	.map = spider_host_map,
-	.xlate = spider_host_xlate,
-};
-
-static void spider_irq_cascade(struct irq_desc *desc)
-{
-	struct irq_chip *chip = irq_desc_get_chip(desc);
-	struct spider_pic *pic = irq_desc_get_handler_data(desc);
-	unsigned int cs;
-
-	cs = in_be32(pic->regs + TIR_CS) >> 24;
-	if (cs != SPIDER_IRQ_INVALID)
-		generic_handle_domain_irq(pic->host, cs);
-
-	chip->irq_eoi(&desc->irq_data);
-}
-
-/* For hooking up the cascade we have a problem. Our device-tree is
- * crap and we don't know on which BE iic interrupt we are hooked on at
- * least not the "standard" way. We can reconstitute it based on two
- * informations though: which BE node we are connected to and whether
- * we are connected to IOIF0 or IOIF1. Right now, we really only care
- * about the IBM cell blade and we know that its firmware gives us an
- * interrupt-map property which is pretty strange.
- */
-static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
-{
-	unsigned int virq;
-	const u32 *imap, *tmp;
-	int imaplen, intsize, unit;
-	struct device_node *iic;
-	struct device_node *of_node;
-
-	of_node = irq_domain_get_of_node(pic->host);
-
-	/* First, we check whether we have a real "interrupts" in the device
-	 * tree in case the device-tree is ever fixed
-	 */
-	virq = irq_of_parse_and_map(of_node, 0);
-	if (virq)
-		return virq;
-
-	/* Now do the horrible hacks */
-	tmp = of_get_property(of_node, "#interrupt-cells", NULL);
-	if (tmp == NULL)
-		return 0;
-	intsize = *tmp;
-	imap = of_get_property(of_node, "interrupt-map", &imaplen);
-	if (imap == NULL || imaplen < (intsize + 1))
-		return 0;
-	iic = of_find_node_by_phandle(imap[intsize]);
-	if (iic == NULL)
-		return 0;
-	imap += intsize + 1;
-	tmp = of_get_property(iic, "#interrupt-cells", NULL);
-	if (tmp == NULL) {
-		of_node_put(iic);
-		return 0;
-	}
-	intsize = *tmp;
-	/* Assume unit is last entry of interrupt specifier */
-	unit = imap[intsize - 1];
-	/* Ok, we have a unit, now let's try to get the node */
-	tmp = of_get_property(iic, "ibm,interrupt-server-ranges", NULL);
-	if (tmp == NULL) {
-		of_node_put(iic);
-		return 0;
-	}
-	/* ugly as hell but works for now */
-	pic->node_id = (*tmp) >> 1;
-	of_node_put(iic);
-
-	/* Ok, now let's get cracking. You may ask me why I just didn't match
-	 * the iic host from the iic OF node, but that way I'm still compatible
-	 * with really really old old firmwares for which we don't have a node
-	 */
-	/* Manufacture an IIC interrupt number of class 2 */
-	virq = irq_create_mapping(NULL,
-				  (pic->node_id << IIC_IRQ_NODE_SHIFT) |
-				  (2 << IIC_IRQ_CLASS_SHIFT) |
-				  unit);
-	if (!virq)
-		printk(KERN_ERR "spider_pic: failed to map cascade !");
-	return virq;
-}
-
-
-static void __init spider_init_one(struct device_node *of_node, int chip,
-				   unsigned long addr)
-{
-	struct spider_pic *pic = &spider_pics[chip];
-	int i, virq;
-
-	/* Map registers */
-	pic->regs = ioremap(addr, 0x1000);
-	if (pic->regs == NULL)
-		panic("spider_pic: can't map registers !");
-
-	/* Allocate a host */
-	pic->host = irq_domain_add_linear(of_node, SPIDER_SRC_COUNT,
-					  &spider_host_ops, pic);
-	if (pic->host == NULL)
-		panic("spider_pic: can't allocate irq host !");
-
-	/* Go through all sources and disable them */
-	for (i = 0; i < SPIDER_SRC_COUNT; i++) {
-		void __iomem *cfg = pic->regs + TIR_CFGA + 8 * i;
-		out_be32(cfg, in_be32(cfg) & ~0x30000000u);
-	}
-
-	/* do not mask any interrupts because of level */
-	out_be32(pic->regs + TIR_MSK, 0x0);
-
-	/* enable interrupt packets to be output */
-	out_be32(pic->regs + TIR_PIEN, in_be32(pic->regs + TIR_PIEN) | 0x1);
-
-	/* Hook up the cascade interrupt to the iic and nodeid */
-	virq = spider_find_cascade_and_node(pic);
-	if (!virq)
-		return;
-	irq_set_handler_data(virq, pic);
-	irq_set_chained_handler(virq, spider_irq_cascade);
-
-	printk(KERN_INFO "spider_pic: node %d, addr: 0x%lx %pOF\n",
-	       pic->node_id, addr, of_node);
-
-	/* Enable the interrupt detection enable bit. Do this last! */
-	out_be32(pic->regs + TIR_DEN, in_be32(pic->regs + TIR_DEN) | 0x1);
-}
-
-void __init spider_init_IRQ(void)
-{
-	struct resource r;
-	struct device_node *dn;
-	int chip = 0;
-
-	/* XXX node numbers are totally bogus. We _hope_ we get the device
-	 * nodes in the right order here but that's definitely not guaranteed,
-	 * we need to get the node from the device tree instead.
-	 * There is currently no proper property for it (but our whole
-	 * device-tree is bogus anyway) so all we can do is pray or maybe test
-	 * the address and deduce the node-id
-	 */
-	for_each_node_by_name(dn, "interrupt-controller") {
-		if (of_device_is_compatible(dn, "CBEA,platform-spider-pic")) {
-			if (of_address_to_resource(dn, 0, &r)) {
-				printk(KERN_WARNING "spider-pic: Failed\n");
-				continue;
-			}
-		} else if (of_device_is_compatible(dn, "sti,platform-spider-pic")
-			   && (chip < 2)) {
-			static long hard_coded_pics[] =
-				{ 0x24000008000ul, 0x34000008000ul};
-			r.start = hard_coded_pics[chip];
-		} else
-			continue;
-		spider_init_one(dn, chip++, r.start);
-	}
-}

arch/powerpc/platforms/cell/spu_base.c

···
 #include <asm/spu.h>
 #include <asm/spu_priv1.h>
 #include <asm/spu_csa.h>
-#include <asm/xmon.h>
 #include <asm/kexec.h>
 
 const struct spu_management_ops *spu_management_ops;
···
 		fb_append_extra_logo(&logo_spe_clut224, ret);
 
 	mutex_lock(&spu_full_list_mutex);
-	xmon_register_spus(&spu_full_list);
 	crash_register_spus(&spu_full_list);
 	mutex_unlock(&spu_full_list_mutex);
 	spu_add_dev_attr(&dev_attr_stat);

arch/powerpc/platforms/cell/spu_manage.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * spu management operations for of based platforms
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- * Copyright 2006 Sony Corp.
- * (C) Copyright 2007 TOSHIBA CORPORATION
- */
-
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/export.h>
-#include <linux/ptrace.h>
-#include <linux/wait.h>
-#include <linux/mm.h>
-#include <linux/io.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#include <asm/spu.h>
-#include <asm/spu_priv1.h>
-#include <asm/firmware.h>
-
-#include "spufs/spufs.h"
-#include "interrupt.h"
-#include "spu_priv1_mmio.h"
-
-struct device_node *spu_devnode(struct spu *spu)
-{
-	return spu->devnode;
-}
-
-EXPORT_SYMBOL_GPL(spu_devnode);
-
-static u64 __init find_spu_unit_number(struct device_node *spe)
-{
-	const unsigned int *prop;
-	int proplen;
-
-	/* new device trees should provide the physical-id attribute */
-	prop = of_get_property(spe, "physical-id", &proplen);
-	if (proplen == 4)
-		return (u64)*prop;
-
-	/* celleb device tree provides the unit-id */
-	prop = of_get_property(spe, "unit-id", &proplen);
-	if (proplen == 4)
-		return (u64)*prop;
-
-	/* legacy device trees provide the id in the reg attribute */
-	prop = of_get_property(spe, "reg", &proplen);
-	if (proplen == 4)
-		return (u64)*prop;
-
-	return 0;
-}
-
-static void spu_unmap(struct spu *spu)
-{
-	if (!firmware_has_feature(FW_FEATURE_LPAR))
-		iounmap(spu->priv1);
-	iounmap(spu->priv2);
-	iounmap(spu->problem);
-	iounmap((__force u8 __iomem *)spu->local_store);
-}
-
-static int __init spu_map_interrupts_old(struct spu *spu,
-	struct device_node *np)
-{
-	unsigned int isrc;
-	const u32 *tmp;
-	int nid;
-
-	/* Get the interrupt source unit from the device-tree */
-	tmp = of_get_property(np, "isrc", NULL);
-	if (!tmp)
-		return -ENODEV;
-	isrc = tmp[0];
-
-	tmp = of_get_property(np->parent->parent, "node-id", NULL);
-	if (!tmp) {
-		printk(KERN_WARNING "%s: can't find node-id\n", __func__);
-		nid = spu->node;
-	} else
-		nid = tmp[0];
-
-	/* Add the node number */
-	isrc |= nid << IIC_IRQ_NODE_SHIFT;
-
-	/* Now map interrupts of all 3 classes */
-	spu->irqs[0] = irq_create_mapping(NULL, IIC_IRQ_CLASS_0 | isrc);
-	spu->irqs[1] = irq_create_mapping(NULL, IIC_IRQ_CLASS_1 | isrc);
-	spu->irqs[2] = irq_create_mapping(NULL, IIC_IRQ_CLASS_2 | isrc);
-
-	/* Right now, we only fail if class 2 failed */
-	if (!spu->irqs[2])
-		return -EINVAL;
-
-	return 0;
-}
-
-static void __iomem * __init spu_map_prop_old(struct spu *spu,
-					      struct device_node *n,
-					      const char *name)
-{
-	const struct address_prop {
-		unsigned long address;
-		unsigned int len;
-	} __attribute__((packed)) *prop;
-	int proplen;
-
-	prop = of_get_property(n, name, &proplen);
-	if (prop == NULL || proplen != sizeof (struct address_prop))
-		return NULL;
-
-	return ioremap(prop->address, prop->len);
-}
-
-static int __init spu_map_device_old(struct spu *spu)
-{
-	struct device_node *node = spu->devnode;
-	const char *prop;
-	int ret;
-
-	ret = -ENODEV;
-	spu->name = of_get_property(node, "name", NULL);
-	if (!spu->name)
-		goto out;
-
-	prop = of_get_property(node, "local-store", NULL);
-	if (!prop)
-		goto out;
-	spu->local_store_phys = *(unsigned long *)prop;
-
-	/* we use local store as ram, not io memory */
-	spu->local_store = (void __force *)
-		spu_map_prop_old(spu, node, "local-store");
-	if (!spu->local_store)
-		goto out;
-
-	prop = of_get_property(node, "problem", NULL);
-	if (!prop)
-		goto out_unmap;
-	spu->problem_phys = *(unsigned long *)prop;
-
-	spu->problem = spu_map_prop_old(spu, node, "problem");
-	if (!spu->problem)
-		goto out_unmap;
-
-	spu->priv2 = spu_map_prop_old(spu, node, "priv2");
-	if (!spu->priv2)
-		goto out_unmap;
-
-	if (!firmware_has_feature(FW_FEATURE_LPAR)) {
-		spu->priv1 = spu_map_prop_old(spu, node, "priv1");
-		if (!spu->priv1)
-			goto out_unmap;
-	}
-
-	ret = 0;
-	goto out;
-
-out_unmap:
-	spu_unmap(spu);
-out:
-	return ret;
-}
-
-static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
-{
-	int i;
-
-	for (i=0; i < 3; i++) {
-		spu->irqs[i] = irq_of_parse_and_map(np, i);
-		if (!spu->irqs[i])
-			goto err;
-	}
-	return 0;
-
-err:
-	pr_debug("failed to map irq %x for spu %s\n", i, spu->name);
-	for (; i >= 0; i--) {
-		if (spu->irqs[i])
-			irq_dispose_mapping(spu->irqs[i]);
-	}
-	return -EINVAL;
-}
-
-static int __init spu_map_resource(struct spu *spu, int nr,
-			    void __iomem** virt, unsigned long *phys)
-{
-	struct device_node *np = spu->devnode;
-	struct resource resource = { };
-	unsigned long len;
-	int ret;
-
-	ret = of_address_to_resource(np, nr, &resource);
-	if (ret)
-		return ret;
-	if (phys)
-		*phys = resource.start;
-	len = resource_size(&resource);
-	*virt = ioremap(resource.start, len);
-	if (!*virt)
-		return -EINVAL;
-	return 0;
-}
-
-static int __init spu_map_device(struct spu *spu)
-{
-	struct device_node *np = spu->devnode;
-	int ret = -ENODEV;
-
-	spu->name = of_get_property(np, "name", NULL);
-	if (!spu->name)
-		goto out;
-
-	ret = spu_map_resource(spu, 0, (void __iomem**)&spu->local_store,
-			       &spu->local_store_phys);
-	if (ret) {
-		pr_debug("spu_new: failed to map %pOF resource 0\n",
-			 np);
-		goto out;
-	}
-	ret = spu_map_resource(spu, 1, (void __iomem**)&spu->problem,
-			       &spu->problem_phys);
-	if (ret) {
-		pr_debug("spu_new: failed to map %pOF resource 1\n",
-			 np);
-		goto out_unmap;
-	}
-	ret = spu_map_resource(spu, 2, (void __iomem**)&spu->priv2, NULL);
-	if (ret) {
-		pr_debug("spu_new: failed to map %pOF resource 2\n",
-			 np);
-		goto out_unmap;
-	}
-	if (!firmware_has_feature(FW_FEATURE_LPAR))
-		ret = spu_map_resource(spu, 3,
-			       (void __iomem**)&spu->priv1, NULL);
-	if (ret) {
-		pr_debug("spu_new: failed to map %pOF resource 3\n",
-			 np);
-		goto out_unmap;
-	}
-	pr_debug("spu_new: %pOF maps:\n", np);
-	pr_debug("  local store   : 0x%016lx -> 0x%p\n",
-		 spu->local_store_phys, spu->local_store);
-	pr_debug("  problem state : 0x%016lx -> 0x%p\n",
-		 spu->problem_phys, spu->problem);
-	pr_debug("  priv2         :                       0x%p\n", spu->priv2);
-	pr_debug("  priv1         :                       0x%p\n", spu->priv1);
-
-	return 0;
-
-out_unmap:
-	spu_unmap(spu);
-out:
-	pr_debug("failed to map spe %s: %d\n", spu->name, ret);
-	return ret;
-}
-
-static int __init of_enumerate_spus(int (*fn)(void *data))
-{
-	int ret;
-	struct device_node *node;
-	unsigned int n = 0;
-
-	ret = -ENODEV;
-	for_each_node_by_type(node, "spe") {
-		ret = fn(node);
-		if (ret) {
-			printk(KERN_WARNING "%s: Error initializing %pOFn\n",
-				__func__, node);
-			of_node_put(node);
-			break;
-		}
-		n++;
-	}
-	return ret ? ret : n;
-}
-
-static int __init of_create_spu(struct spu *spu, void *data)
-{
-	int ret;
-	struct device_node *spe = (struct device_node *)data;
-	static int legacy_map = 0, legacy_irq = 0;
-
-	spu->devnode = of_node_get(spe);
-	spu->spe_id = find_spu_unit_number(spe);
-
-	spu->node = of_node_to_nid(spe);
-	if (spu->node >= MAX_NUMNODES) {
-		printk(KERN_WARNING "SPE %pOF on node %d ignored,"
-		       " node number too big\n", spe, spu->node);
-		printk(KERN_WARNING "Check if CONFIG_NUMA is enabled.\n");
-		ret = -ENODEV;
-		goto out;
-	}
-
-	ret = spu_map_device(spu);
-	if (ret) {
-		if (!legacy_map) {
-			legacy_map = 1;
-			printk(KERN_WARNING "%s: Legacy device tree found, "
-				"trying to map old style\n", __func__);
-		}
-		ret = spu_map_device_old(spu);
-		if (ret) {
-			printk(KERN_ERR "Unable to map %s\n",
-				spu->name);
-			goto out;
-		}
-	}
-
-	ret = spu_map_interrupts(spu, spe);
-	if (ret) {
-		if (!legacy_irq) {
-			legacy_irq = 1;
-			printk(KERN_WARNING "%s: Legacy device tree found, "
-				"trying old style irq\n", __func__);
-		}
-		ret = spu_map_interrupts_old(spu, spe);
-		if (ret) {
-			printk(KERN_ERR "%s: could not map interrupts\n",
-				spu->name);
-			goto out_unmap;
-		}
-	}
-
-	pr_debug("Using SPE %s %p %p %p %p %d\n", spu->name,
-		spu->local_store, spu->problem, spu->priv1,
-		spu->priv2, spu->number);
-	goto out;
-
-out_unmap:
-	spu_unmap(spu);
-out:
-	return ret;
-}
-
-static int of_destroy_spu(struct spu *spu)
-{
-	spu_unmap(spu);
-	of_node_put(spu->devnode);
-	return 0;
-}
-
-static void enable_spu_by_master_run(struct spu_context *ctx)
-{
-	ctx->ops->master_start(ctx);
-}
-
-static void disable_spu_by_master_run(struct spu_context *ctx)
-{
-	ctx->ops->master_stop(ctx);
-}
-
-/* Hardcoded affinity idxs for qs20 */
-#define QS20_SPES_PER_BE 8
-static int qs20_reg_idxs[QS20_SPES_PER_BE] =   { 0, 2, 4, 6, 7, 5, 3, 1 };
-static int qs20_reg_memory[QS20_SPES_PER_BE] = { 1, 1, 0, 0, 0, 0, 0, 0 };
-
-static struct spu *__init spu_lookup_reg(int node, u32 reg)
-{
-	struct spu *spu;
-	const u32 *spu_reg;
-
-	list_for_each_entry(spu, &cbe_spu_info[node].spus, cbe_list) {
-		spu_reg = of_get_property(spu_devnode(spu), "reg", NULL);
-		if (*spu_reg == reg)
-			return spu;
-	}
-	return NULL;
-}
-
-static void __init init_affinity_qs20_harcoded(void)
-{
-	int node, i;
-	struct spu *last_spu, *spu;
-	u32 reg;
-
-	for (node = 0; node < MAX_NUMNODES; node++) {
-		last_spu = NULL;
-		for (i = 0; i < QS20_SPES_PER_BE; i++) {
-			reg = qs20_reg_idxs[i];
-			spu = spu_lookup_reg(node, reg);
-			if (!spu)
-				continue;
-			spu->has_mem_affinity = qs20_reg_memory[reg];
-			if (last_spu)
-				list_add_tail(&spu->aff_list,
-						&last_spu->aff_list);
-			last_spu = spu;
-		}
-	}
-}
-
-static int __init of_has_vicinity(void)
-{
-	struct device_node *dn;
-
-	for_each_node_by_type(dn, "spe") {
-		if (of_property_present(dn, "vicinity"))  {
-			of_node_put(dn);
-			return 1;
-		}
-	}
-	return 0;
-}
-
-static struct spu *__init devnode_spu(int cbe, struct device_node *dn)
-{
-	struct spu *spu;
-
-	list_for_each_entry(spu, &cbe_spu_info[cbe].spus, cbe_list)
-		if (spu_devnode(spu) == dn)
-			return spu;
-	return NULL;
-}
-
-static struct spu * __init
-neighbour_spu(int cbe, struct device_node *target, struct device_node *avoid)
-{
-	struct spu *spu;
-	struct device_node *spu_dn;
-	const phandle *vic_handles;
-	int lenp, i;
-
-	list_for_each_entry(spu, &cbe_spu_info[cbe].spus, cbe_list) {
-		spu_dn = spu_devnode(spu);
-		if (spu_dn == avoid)
-			continue;
-		vic_handles = of_get_property(spu_dn, "vicinity", &lenp);
-		for (i=0; i < (lenp / sizeof(phandle)); i++) {
-			if (vic_handles[i] == target->phandle)
-				return spu;
-		}
-	}
-	return NULL;
-}
-
-static void __init init_affinity_node(int cbe)
-{
-	struct spu *spu, *last_spu;
-	struct device_node *vic_dn, *last_spu_dn;
-	phandle avoid_ph;
-	const phandle *vic_handles;
-	int lenp, i, added;
-
-	last_spu = list_first_entry(&cbe_spu_info[cbe].spus, struct spu,
-								cbe_list);
-	avoid_ph = 0;
-	for (added = 1; added < cbe_spu_info[cbe].n_spus; added++) {
-		last_spu_dn = spu_devnode(last_spu);
-		vic_handles = of_get_property(last_spu_dn, "vicinity", &lenp);
-
-		/*
-		 * Walk through each phandle in vicinity property of the spu
-		 * (typically two vicinity phandles per spe node)
-		 */
-		for (i = 0; i < (lenp / sizeof(phandle)); i++) {
-			if (vic_handles[i] == avoid_ph)
-				continue;
-
-			vic_dn = of_find_node_by_phandle(vic_handles[i]);
-			if (!vic_dn)
-				continue;
-
-			if (of_node_name_eq(vic_dn, "spe") ) {
-				spu = devnode_spu(cbe, vic_dn);
-				avoid_ph = last_spu_dn->phandle;
-			} else {
-				/*
-				 * "mic-tm" and "bif0" nodes do not have
-				 * vicinity property. So we need to find the
-				 * spe which has vic_dn as neighbour, but
-				 * skipping the one we came from (last_spu_dn)
-				 */
-				spu = neighbour_spu(cbe, vic_dn, last_spu_dn);
-				if (!spu)
-					continue;
-				if (of_node_name_eq(vic_dn, "mic-tm")) {
-					last_spu->has_mem_affinity = 1;
-					spu->has_mem_affinity = 1;
-				}
-				avoid_ph = vic_dn->phandle;
-			}
-
-			of_node_put(vic_dn);
-
-			list_add_tail(&spu->aff_list, &last_spu->aff_list);
-			last_spu = spu;
-			break;
-		}
-	}
-}
-
-static void __init init_affinity_fw(void)
-{
-	int cbe;
-
-	for (cbe = 0; cbe < MAX_NUMNODES; cbe++)
-		init_affinity_node(cbe);
-}
-
-static int __init init_affinity(void)
-{
-	if (of_has_vicinity()) {
-		init_affinity_fw();
-	} else {
-		if (of_machine_is_compatible("IBM,CPBW-1.0"))
-			init_affinity_qs20_harcoded();
-		else
-			printk("No affinity configuration found\n");
-	}
-
-	return 0;
-}
-
-const struct spu_management_ops spu_management_of_ops = {
-	.enumerate_spus = of_enumerate_spus,
-	.create_spu = of_create_spu,
-	.destroy_spu = of_destroy_spu,
-	.enable_spu = enable_spu_by_master_run,
-	.disable_spu = disable_spu_by_master_run,
-	.init_affinity = init_affinity,
-};

arch/powerpc/platforms/cell/spu_priv1_mmio.c

···
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * spu hypervisor abstraction for direct hardware access.
- *
- *  (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- *  Copyright 2006 Sony Corp.
- */
-
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/ptrace.h>
-#include <linux/wait.h>
-#include <linux/mm.h>
-#include <linux/io.h>
-#include <linux/mutex.h>
-#include <linux/device.h>
-#include <linux/sched.h>
-
-#include <asm/spu.h>
-#include <asm/spu_priv1.h>
-#include <asm/firmware.h>
-
-#include "interrupt.h"
-#include "spu_priv1_mmio.h"
-
-static void int_mask_and(struct spu *spu, int class, u64 mask)
-{
-	u64 old_mask;
-
-	old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
-	out_be64(&spu->priv1->int_mask_RW[class], old_mask & mask);
-}
-
-static void int_mask_or(struct spu *spu, int class, u64 mask)
-{
-	u64 old_mask;
-
-	old_mask = in_be64(&spu->priv1->int_mask_RW[class]);
-	out_be64(&spu->priv1->int_mask_RW[class], old_mask | mask);
-}
-
-static void int_mask_set(struct spu *spu, int class, u64 mask)
-{
-	out_be64(&spu->priv1->int_mask_RW[class], mask);
-}
-
-static u64 int_mask_get(struct spu *spu, int class)
-{
-	return in_be64(&spu->priv1->int_mask_RW[class]);
-}
-
-static void int_stat_clear(struct spu *spu, int class, u64 stat)
-{
-	out_be64(&spu->priv1->int_stat_RW[class], stat);
-}
-
-static u64 int_stat_get(struct spu *spu, int class)
-{
-	return in_be64(&spu->priv1->int_stat_RW[class]);
-}
-
-static void cpu_affinity_set(struct spu *spu, int cpu)
-{
-	u64 target;
-	u64 route;
-
-	if (nr_cpus_node(spu->node)) {
-		const struct cpumask *spumask = cpumask_of_node(spu->node),
-			*cpumask = cpumask_of_node(cpu_to_node(cpu));
-
-		if (!cpumask_intersects(spumask, cpumask))
-			return;
-	}
-
-	target = iic_get_target_id(cpu);
-	route = target << 48 | target << 32 | target << 16;
-	out_be64(&spu->priv1->int_route_RW, route);
-}
-
-static u64 mfc_dar_get(struct spu *spu)
-{
-	return in_be64(&spu->priv1->mfc_dar_RW);
-}
-
-static u64 mfc_dsisr_get(struct spu *spu)
-{
-	return in_be64(&spu->priv1->mfc_dsisr_RW);
-}
-
-static void mfc_dsisr_set(struct spu *spu, u64 dsisr)
-{
-	out_be64(&spu->priv1->mfc_dsisr_RW, dsisr);
-}
-
-static void mfc_sdr_setup(struct spu *spu)
-{
-	out_be64(&spu->priv1->mfc_sdr_RW, mfspr(SPRN_SDR1));
-}
-
-static void mfc_sr1_set(struct spu *spu, u64 sr1)
-{
-	out_be64(&spu->priv1->mfc_sr1_RW, sr1);
-}
-
-static u64 mfc_sr1_get(struct spu *spu)
-{
-	return in_be64(&spu->priv1->mfc_sr1_RW);
-}
-
-static void mfc_tclass_id_set(struct spu *spu, u64 tclass_id)
-{
-	out_be64(&spu->priv1->mfc_tclass_id_RW, tclass_id);
-}
-
-static u64 mfc_tclass_id_get(struct spu *spu)
-{
-	return in_be64(&spu->priv1->mfc_tclass_id_RW);
-}
-
-static void tlb_invalidate(struct spu *spu)
-{
-	out_be64(&spu->priv1->tlb_invalidate_entry_W, 0ul);
-}
-
-static void resource_allocation_groupID_set(struct spu *spu, u64 id)
-{
-	out_be64(&spu->priv1->resource_allocation_groupID_RW, id);
-}
-
-static u64 resource_allocation_groupID_get(struct spu *spu)
-{
-	return in_be64(&spu->priv1->resource_allocation_groupID_RW);
-}
-
-static void resource_allocation_enable_set(struct spu *spu, u64 enable)
-{
-	out_be64(&spu->priv1->resource_allocation_enable_RW, enable);
-}
-
-static u64 resource_allocation_enable_get(struct spu *spu)
-{
-	return in_be64(&spu->priv1->resource_allocation_enable_RW);
-}
-
-const struct spu_priv1_ops spu_priv1_mmio_ops =
-{
-	.int_mask_and = int_mask_and,
-	.int_mask_or = int_mask_or,
-	.int_mask_set = int_mask_set,
-	.int_mask_get = int_mask_get,
-	.int_stat_clear = int_stat_clear,
-	.int_stat_get = int_stat_get,
-	.cpu_affinity_set = cpu_affinity_set,
-	.mfc_dar_get = mfc_dar_get,
-	.mfc_dsisr_get = mfc_dsisr_get,
-	.mfc_dsisr_set = mfc_dsisr_set,
-	.mfc_sdr_setup = mfc_sdr_setup,
-	.mfc_sr1_set = mfc_sr1_set,
-	.mfc_sr1_get = mfc_sr1_get,
-	.mfc_tclass_id_set = mfc_tclass_id_set,
-	.mfc_tclass_id_get = mfc_tclass_id_get,
-	.tlb_invalidate = tlb_invalidate,
-	.resource_allocation_groupID_set = resource_allocation_groupID_set,
-	.resource_allocation_groupID_get = resource_allocation_groupID_get,
-	.resource_allocation_enable_set = resource_allocation_enable_set,
-	.resource_allocation_enable_get = resource_allocation_enable_get,
-};

arch/powerpc/platforms/cell/spu_priv1_mmio.h

···
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * spu hypervisor abstraction for direct hardware access.
- *
- *  Copyright (C) 2006 Sony Computer Entertainment Inc.
- *  Copyright 2006 Sony Corp.
- */
-
-#ifndef SPU_PRIV1_MMIO_H
-#define SPU_PRIV1_MMIO_H
-
-struct device_node *spu_devnode(struct spu *spu);
-
-#endif /* SPU_PRIV1_MMIO_H */

arch/powerpc/platforms/microwatt/Kconfig

···
 # SPDX-License-Identifier: GPL-2.0
 config PPC_MICROWATT
-	depends on PPC_BOOK3S_64 && !SMP
+	depends on PPC_BOOK3S_64
 	bool "Microwatt SoC platform"
 	select PPC_XICS
 	select PPC_ICS_NATIVE
 	select PPC_ICP_NATIVE
 	select PPC_UDBG_16550
+	select COMMON_CLK
 	help
           This option enables support for FPGA-based Microwatt implementations.
 

arch/powerpc/platforms/microwatt/Makefile

···
 obj-y	+= setup.o rng.o
+obj-$(CONFIG_SMP) += smp.o

arch/powerpc/platforms/microwatt/microwatt.h

···
 #define _MICROWATT_H
 
 void microwatt_rng_init(void);
+void microwatt_init_smp(void);
 
 #endif /* _MICROWATT_H */

arch/powerpc/platforms/microwatt/setup.c

···
 }
 machine_arch_initcall(microwatt, microwatt_populate);
 
+static int __init microwatt_probe(void)
+{
+	/* Main reason for having this is to start the other CPU(s) */
+	if (IS_ENABLED(CONFIG_SMP))
+		microwatt_init_smp();
+	return 1;
+}
+
 static void __init microwatt_setup_arch(void)
 {
 	microwatt_rng_init();
 }
 
+static void microwatt_idle(void)
+{
+	if (!prep_irq_for_idle_irqsoff())
+		return;
+
+	__asm__ __volatile__ ("wait");
+}
+
 define_machine(microwatt) {
 	.name			= "microwatt",
 	.compatible		= "microwatt-soc",
+	.probe			= microwatt_probe,
 	.init_IRQ		= microwatt_init_IRQ,
 	.setup_arch		= microwatt_setup_arch,
 	.progress		= udbg_progress,
+	.power_save		= microwatt_idle,
 };

arch/powerpc/platforms/microwatt/smp.c

···
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/*
+ * SMP support functions for Microwatt
+ * Copyright 2025 Paul Mackerras <[e-mail]>
+ */
+
+#include <linux/kernel.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+#include <asm/early_ioremap.h>
+#include <asm/ppc-opcode.h>
+#include <asm/reg.h>
+#include <asm/smp.h>
+#include <asm/xics.h>
+
+#include "microwatt.h"
+
+static void __init microwatt_smp_probe(void)
+{
+	xics_smp_probe();
+}
+
+static void microwatt_smp_setup_cpu(int cpu)
+{
+	if (cpu != 0)
+		xics_setup_cpu();
+}
+
+static struct smp_ops_t microwatt_smp_ops = {
+	.probe		= microwatt_smp_probe,
+	.message_pass	= NULL,		/* Use smp_muxed_ipi_message_pass */
+	.kick_cpu	= smp_generic_kick_cpu,
+	.setup_cpu	= microwatt_smp_setup_cpu,
+};
+
+/* XXX get from device tree */
+#define SYSCON_BASE	0xc0000000
+#define SYSCON_LENGTH	0x100
+
+#define SYSCON_CPU_CTRL	0x58
+
+void __init microwatt_init_smp(void)
+{
+	volatile unsigned char __iomem *syscon;
+	int ncpus;
+	int timeout;
+
+	syscon = early_ioremap(SYSCON_BASE, SYSCON_LENGTH);
+	if (syscon == NULL) {
+		pr_err("Failed to map SYSCON\n");
+		return;
+	}
+	ncpus = (readl(syscon + SYSCON_CPU_CTRL) >> 8) & 0xff;
+	if (ncpus < 2)
+		goto out;
+
+	smp_ops = &microwatt_smp_ops;
+
+	/*
+	 * Write two instructions at location 0:
+	 * mfspr r3, PIR
+	 * b __secondary_hold
+	 */
+	*(unsigned int *)KERNELBASE = PPC_RAW_MFSPR(3, SPRN_PIR);
+	*(unsigned int *)(KERNELBASE+4) = PPC_RAW_BRANCH(&__secondary_hold - (char *)(KERNELBASE+4));
+
+	/* enable the other CPUs, they start at location 0 */
+	writel((1ul << ncpus) - 1, syscon + SYSCON_CPU_CTRL);
+
+	timeout = 10000;
+	while (!__secondary_hold_acknowledge) {
+		if (--timeout == 0)
+			break;
+		barrier();
+	}
+
+ out:
+	early_iounmap((void *)syscon, SYSCON_LENGTH);
+}

arch/powerpc/platforms/powernv/Kconfig

···
 	select MMU_NOTIFIER
 	select FORCE_SMP
 	select ARCH_SUPPORTS_PER_VMA_LOCK
+	select PPC_RADIX_BROADCAST_TLBIE
 	default y
 
 config OPAL_PRD

arch/powerpc/platforms/pseries/Kconfig

···
 	select FORCE_SMP
 	select SWIOTLB
 	select ARCH_SUPPORTS_PER_VMA_LOCK
+	select PPC_RADIX_BROADCAST_TLBIE
 	default y
 
 config PARAVIRT
···
 	  makes sense for a system running in an LPAR where the unused pages
 	  will be reused for other LPARs. The interface allows firmware to
 	  balance memory across many LPARs.
+
+config HTMDUMP
+	tristate "PowerVM data dumper"
+	depends on PPC_PSERIES && DEBUG_FS
+	default m
+	help
+	  Select this option, if you want to enable the kernel debugfs
+	  interface to dump the Hardware Trace Macro (HTM) function data
+	  in the LPAR.
 
 config HV_PERF_CTRS
 	bool "Hypervisor supplied PMU events (24x7 & GPCI)"

arch/powerpc/platforms/pseries/Makefile

···
 obj-$(CONFIG_HVCS)		+= hvcserver.o
 obj-$(CONFIG_HCALL_STATS)	+= hvCall_inst.o
 obj-$(CONFIG_CMM)		+= cmm.o
+obj-$(CONFIG_HTMDUMP)		+= htmdump.o
 obj-$(CONFIG_IO_EVENT_IRQ)	+= io_event_irq.o
 obj-$(CONFIG_LPARCFG)		+= lparcfg.o
 obj-$(CONFIG_IBMVIO)		+= vio.o

arch/powerpc/platforms/pseries/htmdump.c

···
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) IBM Corporation, 2024
+ */
+
+#define pr_fmt(fmt) "htmdump: " fmt
+
+#include <linux/debugfs.h>
+#include <linux/module.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+#include <asm/plpar_wrappers.h>
+
+static void *htm_buf;
+static u32 nodeindex;
+static u32 nodalchipindex;
+static u32 coreindexonchip;
+static u32 htmtype;
+static struct dentry *htmdump_debugfs_dir;
+
+static ssize_t htmdump_read(struct file *filp, char __user *ubuf,
+			     size_t count, loff_t *ppos)
+{
+	void *htm_buf = filp->private_data;
+	unsigned long page, read_size, available;
+	loff_t offset;
+	long rc;
+
+	page = ALIGN_DOWN(*ppos, PAGE_SIZE);
+	offset = (*ppos) % PAGE_SIZE;
+
+	rc = htm_get_dump_hardware(nodeindex, nodalchipindex, coreindexonchip,
+				   htmtype, virt_to_phys(htm_buf), PAGE_SIZE, page);
+
+	switch (rc) {
+	case H_SUCCESS:
+	/* H_PARTIAL for the case where all available data can't be
+	 * returned due to buffer size constraint.
+	 */
+	case H_PARTIAL:
+		break;
+	/* H_NOT_AVAILABLE indicates reading from an offset outside the range,
+	 * i.e. past end of file.
+	 */
+	case H_NOT_AVAILABLE:
+		return 0;
+	case H_BUSY:
+	case H_LONG_BUSY_ORDER_1_MSEC:
+	case H_LONG_BUSY_ORDER_10_MSEC:
+	case H_LONG_BUSY_ORDER_100_MSEC:
+	case H_LONG_BUSY_ORDER_1_SEC:
+	case H_LONG_BUSY_ORDER_10_SEC:
+	case H_LONG_BUSY_ORDER_100_SEC:
+		return -EBUSY;
+	case H_PARAMETER:
+	case H_P2:
+	case H_P3:
+	case H_P4:
+	case H_P5:
+	case H_P6:
+		return -EINVAL;
+	case H_STATE:
+		return -EIO;
+	case H_AUTHORITY:
+		return -EPERM;
+	}
+
+	available = PAGE_SIZE;
+	read_size = min(count, available);
+	*ppos += read_size;
+	return simple_read_from_buffer(ubuf, count, &offset, htm_buf, available);
+}
+
+static const struct file_operations htmdump_fops = {
+	.llseek = NULL,
+	.read	= htmdump_read,
+	.open	= simple_open,
+};
+
+static int htmdump_init_debugfs(void)
+{
+	htm_buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!htm_buf) {
+		pr_err("Failed to allocate htmdump buf\n");
+		return -ENOMEM;
+	}
+
+	htmdump_debugfs_dir = debugfs_create_dir("htmdump",
+						  arch_debugfs_dir);
+
+	debugfs_create_u32("nodeindex", 0600,
+			htmdump_debugfs_dir, &nodeindex);
+	debugfs_create_u32("nodalchipindex", 0600,
+			htmdump_debugfs_dir, &nodalchipindex);
+	debugfs_create_u32("coreindexonchip", 0600,
+			htmdump_debugfs_dir, &coreindexonchip);
+	debugfs_create_u32("htmtype", 0600,
+			htmdump_debugfs_dir, &htmtype);
+	debugfs_create_file("trace", 0400, htmdump_debugfs_dir, htm_buf, &htmdump_fops);
+
+	return 0;
+}
+
+static int __init htmdump_init(void)
+{
+	if (htmdump_init_debugfs())
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void __exit htmdump_exit(void)
+{
+	debugfs_remove_recursive(htmdump_debugfs_dir);
+	kfree(htm_buf);
+}
+
+module_init(htmdump_init);
+module_exit(htmdump_exit);
+MODULE_DESCRIPTION("PHYP Hardware Trace Macro (HTM) data dumper");
+MODULE_LICENSE("GPL");

arch/powerpc/platforms/pseries/iommu.c

···
 enum {
 	DDW_EXT_SIZE = 0,
 	DDW_EXT_RESET_DMA_WIN = 1,
-	DDW_EXT_QUERY_OUT_SIZE = 2
+	DDW_EXT_QUERY_OUT_SIZE = 2,
+	DDW_EXT_LIMITED_ADDR_MODE = 3
 };
 
 static struct iommu_table *iommu_pseries_alloc_table(int node)
···
 
 static phys_addr_t ddw_memory_hotplug_max(void)
 {
-	resource_size_t max_addr = memory_hotplug_max();
-	struct device_node *memory;
+	resource_size_t max_addr;
 
-	for_each_node_by_type(memory, "memory") {
-		struct resource res;
-
-		if (of_address_to_resource(memory, 0, &res))
-			continue;
-
-		max_addr = max_t(resource_size_t, max_addr, res.end + 1);
-	}
+#if defined(CONFIG_NUMA) && defined(CONFIG_MEMORY_HOTPLUG)
+	max_addr = hot_add_drconf_memory_max();
+#else
+	max_addr = memblock_end_of_DRAM();
+#endif
 
 	return max_addr;
 }
···
 			 "ibm,reset-pe-dma-windows(%x) %x %x %x returned %d ",
 			 reset_dma_win, cfg_addr, BUID_HI(buid), BUID_LO(buid),
 			 ret);
+}
+
+/*
+ * Platforms support placing PHB in limited address mode starting with LoPAR
+ * level 2.13 implement. In this mode, the DMA address returned by DDW is over
+ * 4GB but, less than 64-bits. This benefits IO adapters that don't support
+ * 64-bits for DMA addresses.
+ */
+static int limited_dma_window(struct pci_dev *dev, struct device_node *par_dn)
+{
+	int ret;
+	u32 cfg_addr, reset_dma_win, las_supported;
+	u64 buid;
+	struct device_node *dn;
+	struct pci_dn *pdn;
+
+	ret = ddw_read_ext(par_dn, DDW_EXT_RESET_DMA_WIN, &reset_dma_win);
+	if (ret)
+		goto out;
+
+	ret = ddw_read_ext(par_dn, DDW_EXT_LIMITED_ADDR_MODE, &las_supported);
+
+	/* Limited Address Space extension available on the platform but DDW in
+	 * limited addressing mode not supported
+	 */
+	if (!ret && !las_supported)
+		ret = -EPROTO;
+
+	if (ret) {
+		dev_info(&dev->dev, "Limited Address Space for DDW not Supported, err: %d", ret);
+		goto out;
+	}
+
+	dn = pci_device_to_OF_node(dev);
+	pdn = PCI_DN(dn);
+	buid = pdn->phb->buid;
+	cfg_addr = (pdn->busno << 16) | (pdn->devfn << 8);
+
+	ret = rtas_call(reset_dma_win, 4, 1, NULL, cfg_addr, BUID_HI(buid),
+			BUID_LO(buid), 1);
+	if (ret)
+		dev_info(&dev->dev,
+			 "ibm,reset-pe-dma-windows(%x) for Limited Addr Support: %x %x %x returned %d ",
+			 reset_dma_win, cfg_addr, BUID_HI(buid), BUID_LO(buid),
+			 ret);
+
+out:
+	return ret;
 }
 
 /* Return largest page shift based on "IO Page Sizes" output of ibm,query-pe-dma-window. */
···
  *
  * returns true if can map all pages (direct mapping), false otherwise..
  */
-static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn)
+static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn, u64 dma_mask)
 {
 	int len = 0, ret;
 	int max_ram_len = order_base_2(ddw_memory_hotplug_max());
···
 	bool pmem_present;
 	struct pci_dn *pci = PCI_DN(pdn);
 	struct property *default_win = NULL;
+	bool limited_addr_req = false, limited_addr_enabled = false;
+	int dev_max_ddw;
+	int ddw_sz;
 
 	dn = of_find_node_by_type(NULL, "ibm,pmemory");
 	pmem_present = dn != NULL;
···
 	 * the ibm,ddw-applicable property holds the tokens for:
 	 * ibm,query-pe-dma-window
 	 * ibm,create-pe-dma-window
-	 * ibm,remove-pe-dma-window
 	 * for the given node in that order.
 	 * the property is actually in the parent, not the PE
 	 */
···
 	ret = query_ddw(dev, ddw_avail, &query, pdn);
 	if (ret != 0)
 		goto out_failed;
+
+	/* DMA Limited Addressing required? This is when the driver has
+	 * requested to create DDW but supports mask which is less than 64-bits
+	 */
+	limited_addr_req = (dma_mask != DMA_BIT_MASK(64));
+
+	/* place the PHB in Limited Addressing mode */
+	if (limited_addr_req) {
+		if (limited_dma_window(dev, pdn))
+			goto out_failed;
+
+		/* PHB is in Limited address mode */
+		limited_addr_enabled = true;
+	}
 
 	/*
 	 * If there is no window available, remove the default DMA window,
···
 		goto out_failed;
 	}
 
+	/* Maximum DMA window size that the device can address (in log2) */
+	dev_max_ddw = fls64(dma_mask);
+
+	/* If the device DMA mask is less than 64-bits, make sure the DMA window
+	 * size is not bigger than what the device can access
+	 */
+	ddw_sz = min(order_base_2(query.largest_available_block << page_shift),
+			dev_max_ddw);
+
 	/*
 	 * The "ibm,pmemory" can appear anywhere in the address space.
 	 * Assuming it is still backed by page structs, try MAX_PHYSMEM_BITS
···
 	 */
 	len = max_ram_len;
 	if (pmem_present) {
-		if (query.largest_available_block >=
-		    (1ULL << (MAX_PHYSMEM_BITS - page_shift)))
+		if (ddw_sz >= MAX_PHYSMEM_BITS)
 			len = MAX_PHYSMEM_BITS;
 		else
 			dev_info(&dev->dev, "Skipping ibm,pmemory");
 	}
 
 	/* check if the available block * number of ptes will map everything */
-	if (query.largest_available_block < (1ULL << (len - page_shift))) {
+	if (ddw_sz < len) {
 		dev_dbg(&dev->dev,
 			"can't map partition max 0x%llx with %llu %llu-sized pages\n",
 			1ULL << len,
 			query.largest_available_block,
 			1ULL << page_shift);
 
-		len = order_base_2(query.largest_available_block << page_shift);
-
+		len = ddw_sz;
 		dynamic_mapping = true;
 	} else {
 		direct_mapping = !default_win_removed ||
···
 		 */
 		if (default_win_removed && pmem_present && !direct_mapping) {
 			/* DDW is big enough to be split */
-			if ((query.largest_available_block << page_shift) >=
-			     MIN_DDW_VPMEM_DMA_WINDOW + (1ULL << max_ram_len)) {
+			if ((1ULL << ddw_sz) >=
+			    MIN_DDW_VPMEM_DMA_WINDOW + (1ULL << max_ram_len)) {
+
 				direct_mapping = true;
 
 				/* offset of the Dynamic part of DDW */
···
 			dynamic_mapping = true;
 
 			/* create max size DDW possible */
-			len = order_base_2(query.largest_available_block
-							<< page_shift);
+			len = ddw_sz;
 		}
 	}
 
···
 
 	if (direct_mapping) {
 		/* DDW maps the whole partition, so enable direct DMA mapping */
-		ret = walk_system_ram_range(0, memblock_end_of_DRAM() >> PAGE_SHIFT,
+		ret = walk_system_ram_range(0, ddw_memory_hotplug_max() >> PAGE_SHIFT,
 					    win64->value, tce_setrange_multi_pSeriesLP_walk);
 		if (ret) {
 			dev_info(&dev->dev, "failed to map DMA window for %pOF: %d\n",
···
 	__remove_dma_window(pdn, ddw_avail, create.liobn);
 
 out_failed:
-	if (default_win_removed)
+	if (default_win_removed || limited_addr_enabled)
 		reset_dma_window(dev, pdn);
 
 	fpdn = kzalloc(sizeof(*fpdn), GFP_KERNEL);
···
 	if (pmem_present && direct_mapping && len != MAX_PHYSMEM_BITS)
 		dev->dev.bus_dma_limit = dev->dev.archdata.dma_offset +
 						(1ULL << max_ram_len);
+
+	dev_info(&dev->dev, "lsa_required: %x, lsa_enabled: %x, direct mapping: %x\n",
+			limited_addr_req, limited_addr_enabled, direct_mapping);
 
 	return direct_mapping;
 }
···
 {
 	struct device_node *dn = pci_device_to_OF_node(pdev), *pdn;
 
-	/* only attempt to use a new window if 64-bit DMA is requested */
-	if (dma_mask < DMA_BIT_MASK(64))
+	/* For DDW, DMA mask should be more than 32-bits. For mask more then
+	 * 32-bits but less then 64-bits, DMA addressing is supported in
+	 * Limited Addressing mode.
+	 */
+	if (dma_mask <= DMA_BIT_MASK(32))
 		return false;
 
 	dev_dbg(&pdev->dev, "node is %pOF\n", dn);
···
 	 */
 	pdn = pci_dma_find(dn, NULL);
 	if (pdn && PCI_DN(pdn))
-		return enable_ddw(pdev, pdn);
+		return enable_ddw(pdev, pdn, dma_mask);
 
 	return false;
 }
···
 	struct memory_notify *arg = data;
 	int ret = 0;
 
+	/* This notifier can get called when onlining persistent memory as well.
+	 * TCEs are not pre-mapped for persistent memory. Persistent memory will
+	 * always be above ddw_memory_hotplug_max()
+	 */
+
 	switch (action) {
 	case MEM_GOING_ONLINE:
 		spin_lock(&dma_win_list_lock);
 		list_for_each_entry(window, &dma_win_list, list) {
-			if (window->direct) {
+			if (window->direct && (arg->start_pfn << PAGE_SHIFT) <
+				ddw_memory_hotplug_max()) {
 				ret |= tce_setrange_multi_pSeriesLP(arg->start_pfn,
 						arg->nr_pages, window->prop);
 			}
···
 	case MEM_OFFLINE:
 		spin_lock(&dma_win_list_lock);
 		list_for_each_entry(window, &dma_win_list, list) {
-			if (window->direct) {
+			if (window->direct && (arg->start_pfn << PAGE_SHIFT) <
+				ddw_memory_hotplug_max()) {
 				ret |= tce_clearrange_multi_pSeriesLP(arg->start_pfn,
 						arg->nr_pages, window->prop);
 			}

arch/powerpc/sysdev/Makefile

···
 
 obj-$(CONFIG_PPC_MPC106)	+= grackle.o
 obj-$(CONFIG_PPC_DCR_NATIVE)	+= dcr-low.o
-obj-$(CONFIG_PPC_PMI)		+= pmi.o
 obj-$(CONFIG_U3_DART)		+= dart_iommu.o
 obj-$(CONFIG_MMIO_NVRAM)	+= mmio_nvram.o
 obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o fsl_mpic_err.o

arch/powerpc/sysdev/dcr.c

···
 #include <linux/of_address.h>
 #include <asm/dcr.h>
 
-#ifdef CONFIG_PPC_DCR_MMIO
-static struct device_node *find_dcr_parent(struct device_node *node)
-{
-	struct device_node *par, *tmp;
-	const u32 *p;
-
-	for (par = of_node_get(node); par;) {
-		if (of_property_read_bool(par, "dcr-controller"))
-			break;
-		p = of_get_property(par, "dcr-parent", NULL);
-		tmp = par;
-		if (p == NULL)
-			par = of_get_parent(par);
-		else
-			par = of_find_node_by_phandle(*p);
-		of_node_put(tmp);
-	}
-	return par;
-}
-#endif
-
-#if defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO)
-
-bool dcr_map_ok_generic(dcr_host_t host)
-{
-	if (host.type == DCR_HOST_NATIVE)
-		return dcr_map_ok_native(host.host.native);
-	else if (host.type == DCR_HOST_MMIO)
-		return dcr_map_ok_mmio(host.host.mmio);
-	else
-		return false;
-}
-EXPORT_SYMBOL_GPL(dcr_map_ok_generic);
-
-dcr_host_t dcr_map_generic(struct device_node *dev,
-			   unsigned int dcr_n,
-			   unsigned int dcr_c)
-{
-	dcr_host_t host;
-	struct device_node *dp;
-	const char *prop;
-
-	host.type = DCR_HOST_INVALID;
-
-	dp = find_dcr_parent(dev);
-	if (dp == NULL)
-		return host;
-
-	prop = of_get_property(dp, "dcr-access-method", NULL);
-
-	pr_debug("dcr_map_generic(dcr-access-method = %s)\n", prop);
-
-	if (!strcmp(prop, "native")) {
-		host.type = DCR_HOST_NATIVE;
-		host.host.native = dcr_map_native(dev, dcr_n, dcr_c);
-	} else if (!strcmp(prop, "mmio")) {
-		host.type = DCR_HOST_MMIO;
-		host.host.mmio = dcr_map_mmio(dev, dcr_n, dcr_c);
-	}
-
-	of_node_put(dp);
-	return host;
-}
-EXPORT_SYMBOL_GPL(dcr_map_generic);
-
-void dcr_unmap_generic(dcr_host_t host, unsigned int dcr_c)
-{
-	if (host.type == DCR_HOST_NATIVE)
-		dcr_unmap_native(host.host.native, dcr_c);
-	else if (host.type == DCR_HOST_MMIO)
-		dcr_unmap_mmio(host.host.mmio, dcr_c);
-	else /* host.type == DCR_HOST_INVALID */
-		WARN_ON(true);
-}
-EXPORT_SYMBOL_GPL(dcr_unmap_generic);
-
-u32 dcr_read_generic(dcr_host_t host, unsigned int dcr_n)
-{
-	if (host.type == DCR_HOST_NATIVE)
-		return dcr_read_native(host.host.native, dcr_n);
-	else if (host.type == DCR_HOST_MMIO)
-		return dcr_read_mmio(host.host.mmio, dcr_n);
-	else /* host.type == DCR_HOST_INVALID */
-		WARN_ON(true);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(dcr_read_generic);
-
-void dcr_write_generic(dcr_host_t host, unsigned int dcr_n, u32 value)
-{
-	if (host.type == DCR_HOST_NATIVE)
-		dcr_write_native(host.host.native, dcr_n, value);
-	else if (host.type == DCR_HOST_MMIO)
-		dcr_write_mmio(host.host.mmio, dcr_n, value);
-	else /* host.type == DCR_HOST_INVALID */
-		WARN_ON(true);
-}
-EXPORT_SYMBOL_GPL(dcr_write_generic);
-
-#endif /* defined(CONFIG_PPC_DCR_NATIVE) && defined(CONFIG_PPC_DCR_MMIO) */
-
 unsigned int dcr_resource_start(const struct device_node *np,
 				unsigned int index)
 {
···
 }
 EXPORT_SYMBOL_GPL(dcr_resource_len);
 
-#ifdef CONFIG_PPC_DCR_MMIO
-
-static u64 of_translate_dcr_address(struct device_node *dev,
-				    unsigned int dcr_n,
-				    unsigned int *out_stride)
-{
-	struct device_node *dp;
-	const u32 *p;
-	unsigned int stride;
-	u64 ret = OF_BAD_ADDR;
-
-	dp = find_dcr_parent(dev);
-	if (dp == NULL)
-		return OF_BAD_ADDR;
-
-	/* Stride is not properly defined yet, default to 0x10 for Axon */
-	p = of_get_property(dp, "dcr-mmio-stride", NULL);
-	stride = (p == NULL) ? 0x10 : *p;
-
-	/* XXX FIXME: Which property name is to use of the 2 following ? */
-	p = of_get_property(dp, "dcr-mmio-range", NULL);
-	if (p == NULL)
-		p = of_get_property(dp, "dcr-mmio-space", NULL);
-	if (p == NULL)
-		goto done;
-
-	/* Maybe could do some better range checking here */
-	ret = of_translate_address(dp, p);
-	if (ret != OF_BAD_ADDR)
-		ret += (u64)(stride) * (u64)dcr_n;
-	if (out_stride)
-		*out_stride = stride;
-
- done:
-	of_node_put(dp);
-	return ret;
-}
-
-dcr_host_mmio_t dcr_map_mmio(struct device_node *dev,
-			     unsigned int dcr_n,
-			     unsigned int dcr_c)
-{
-	dcr_host_mmio_t ret = { .token = NULL, .stride = 0, .base = dcr_n };
-	u64 addr;
-
-	pr_debug("dcr_map(%pOF, 0x%x, 0x%x)\n",
-		 dev, dcr_n, dcr_c);
-
-	addr = of_translate_dcr_address(dev, dcr_n, &ret.stride);
-	pr_debug("translates to addr: 0x%llx, stride: 0x%x\n",
-		 (unsigned long long) addr, ret.stride);
-	if (addr == OF_BAD_ADDR)
-		return ret;
-	pr_debug("mapping 0x%x bytes\n", dcr_c * ret.stride);
-	ret.token = ioremap(addr, dcr_c * ret.stride);
-	if (ret.token == NULL)
-		return ret;
-	pr_debug("mapped at 0x%p -> base is 0x%p\n",
-		 ret.token, ret.token - dcr_n * ret.stride);
-	ret.token -= dcr_n * ret.stride;
-	return ret;
-}
-EXPORT_SYMBOL_GPL(dcr_map_mmio);
-
-void dcr_unmap_mmio(dcr_host_mmio_t host, unsigned int dcr_c)
-{
-	dcr_host_mmio_t h = host;
-
-	if (h.token == NULL)
-		return;
-	h.token += host.base * h.stride;
-	iounmap(h.token);
-	h.token = NULL;
-}
-EXPORT_SYMBOL_GPL(dcr_unmap_mmio);
-
-#endif /* defined(CONFIG_PPC_DCR_MMIO) */
-
-#ifdef CONFIG_PPC_DCR_NATIVE
 DEFINE_SPINLOCK(dcr_ind_lock);
 EXPORT_SYMBOL_GPL(dcr_ind_lock);
-#endif	/* defined(CONFIG_PPC_DCR_NATIVE) */
-

arch/powerpc/sysdev/ipic.c

···
 	ipic_write(ipic->regs, IPIC_SIMSR_H, 0);
 	ipic_write(ipic->regs, IPIC_SIMSR_L, 0);
 
-	printk ("IPIC (%d IRQ sources) at %p\n", NR_IPIC_INTS,
-			primary_ipic->regs);
+	pr_info("IPIC (%d IRQ sources) at MMIO %pa\n", NR_IPIC_INTS, &res.start);
 
 	return ipic;
 }

arch/powerpc/sysdev/pmi.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * pmi driver
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005
- *
- * PMI (Platform Management Interrupt) is a way to communicate
- * with the BMC (Baseboard Management Controller) via interrupts.
- * Unlike IPMI it is bidirectional and has a low latency.
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-#include <linux/completion.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/mod_devicetable.h>
-#include <linux/workqueue.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/platform_device.h>
-
-#include <asm/io.h>
-#include <asm/pmi.h>
-
-struct pmi_data {
-	struct list_head	handler;
-	spinlock_t		handler_spinlock;
-	spinlock_t		pmi_spinlock;
-	struct mutex		msg_mutex;
-	pmi_message_t		msg;
-	struct completion	*completion;
-	struct platform_device	*dev;
-	int			irq;
-	u8 __iomem		*pmi_reg;
-	struct work_struct	work;
-};
-
-static struct pmi_data *data;
-
-static irqreturn_t pmi_irq_handler(int irq, void *dev_id)
-{
-	u8 type;
-	int rc;
-
-	spin_lock(&data->pmi_spinlock);
-
-	type = ioread8(data->pmi_reg + PMI_READ_TYPE);
-	pr_debug("pmi: got message of type %d\n", type);
-
-	if (type & PMI_ACK && !data->completion) {
-		printk(KERN_WARNING "pmi: got unexpected ACK message.\n");
-		rc = -EIO;
-		goto unlock;
-	}
-
-	if (data->completion && !(type & PMI_ACK)) {
-		printk(KERN_WARNING "pmi: expected ACK, but got %d\n", type);
-		rc = -EIO;
-		goto unlock;
-	}
-
-	data->msg.type = type;
-	data->msg.data0 = ioread8(data->pmi_reg + PMI_READ_DATA0);
-	data->msg.data1 = ioread8(data->pmi_reg + PMI_READ_DATA1);
-	data->msg.data2 = ioread8(data->pmi_reg + PMI_READ_DATA2);
-	rc = 0;
-unlock:
-	spin_unlock(&data->pmi_spinlock);
-
-	if (rc == -EIO) {
-		rc = IRQ_HANDLED;
-		goto out;
-	}
-
-	if (data->msg.type & PMI_ACK) {
-		complete(data->completion);
-		rc = IRQ_HANDLED;
-		goto out;
-	}
-
-	schedule_work(&data->work);
-
-	rc = IRQ_HANDLED;
-out:
-	return rc;
-}
-
-
-static const struct of_device_id pmi_match[] = {
-	{ .type = "ibm,pmi", .name = "ibm,pmi" },
-	{ .type = "ibm,pmi" },
-	{},
-};
-
-MODULE_DEVICE_TABLE(of, pmi_match);
-
-static void pmi_notify_handlers(struct work_struct *work)
-{
-	struct pmi_handler *handler;
-
-	spin_lock(&data->handler_spinlock);
-	list_for_each_entry(handler, &data->handler, node) {
-		pr_debug("pmi: notifying handler %p\n", handler);
-		if (handler->type == data->msg.type)
-			handler->handle_pmi_message(data->msg);
-	}
-	spin_unlock(&data->handler_spinlock);
-}
-
-static int pmi_of_probe(struct platform_device *dev)
-{
-	struct device_node *np = dev->dev.of_node;
-	int rc;
-
-	if (data) {
-		printk(KERN_ERR "pmi: driver has already been initialized.\n");
-		rc = -EBUSY;
-		goto out;
-	}
-
-	data = kzalloc(sizeof(struct pmi_data), GFP_KERNEL);
-	if (!data) {
-		printk(KERN_ERR "pmi: could not allocate memory.\n");
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	data->pmi_reg = of_iomap(np, 0);
-	if (!data->pmi_reg) {
-		printk(KERN_ERR "pmi: invalid register address.\n");
-		rc = -EFAULT;
-		goto error_cleanup_data;
-	}
-
-	INIT_LIST_HEAD(&data->handler);
-
-	mutex_init(&data->msg_mutex);
-	spin_lock_init(&data->pmi_spinlock);
-	spin_lock_init(&data->handler_spinlock);
-
-	INIT_WORK(&data->work, pmi_notify_handlers);
-
-	data->dev = dev;
-
-	data->irq = irq_of_parse_and_map(np, 0);
-	if (!data->irq) {
-		printk(KERN_ERR "pmi: invalid interrupt.\n");
-		rc = -EFAULT;
-		goto error_cleanup_iomap;
-	}
-
-	rc = request_irq(data->irq, pmi_irq_handler, 0, "pmi", NULL);
-	if (rc) {
-		printk(KERN_ERR "pmi: can't request IRQ %d: returned %d\n",
-				data->irq, rc);
-		goto error_cleanup_iomap;
-	}
-
-	printk(KERN_INFO "pmi: found pmi device at addr %p.\n", data->pmi_reg);
-
-	goto out;
-
-error_cleanup_iomap:
-	iounmap(data->pmi_reg);
-
-error_cleanup_data:
-	kfree(data);
-
-out:
-	return rc;
-}
-
-static void pmi_of_remove(struct platform_device *dev)
-{
-	struct pmi_handler *handler, *tmp;
-
-	free_irq(data->irq, NULL);
-	iounmap(data->pmi_reg);
-
-	spin_lock(&data->handler_spinlock);
-
-	list_for_each_entry_safe(handler, tmp, &data->handler, node)
-		list_del(&handler->node);
-
-	spin_unlock(&data->handler_spinlock);
-
-	kfree(data);
-	data = NULL;
-}
-
-static struct platform_driver pmi_of_platform_driver = {
-	.probe		= pmi_of_probe,
-	.remove		= pmi_of_remove,
-	.driver = {
-		.name = "pmi",
-		.of_match_table = pmi_match,
-	},
-};
-module_platform_driver(pmi_of_platform_driver);
-
-int pmi_send_message(pmi_message_t msg)
-{
-	unsigned long flags;
-	DECLARE_COMPLETION_ONSTACK(completion);
-
-	if (!data)
-		return -ENODEV;
-
-	mutex_lock(&data->msg_mutex);
-
-	data->msg = msg;
-	pr_debug("pmi_send_message: msg is %08x\n", *(u32*)&msg);
-
-	data->completion = &completion;
-
-	spin_lock_irqsave(&data->pmi_spinlock, flags);
-	iowrite8(msg.data0, data->pmi_reg + PMI_WRITE_DATA0);
-	iowrite8(msg.data1, data->pmi_reg + PMI_WRITE_DATA1);
-	iowrite8(msg.data2, data->pmi_reg + PMI_WRITE_DATA2);
-	iowrite8(msg.type, data->pmi_reg + PMI_WRITE_TYPE);
-	spin_unlock_irqrestore(&data->pmi_spinlock, flags);
-
-	pr_debug("pmi_send_message: wait for completion\n");
-
-	wait_for_completion_interruptible_timeout(data->completion,
-						  PMI_TIMEOUT);
-
-	data->completion = NULL;
-
-	mutex_unlock(&data->msg_mutex);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(pmi_send_message);
-
-int pmi_register_handler(struct pmi_handler *handler)
-{
-	if (!data)
-		return -ENODEV;
-
-	spin_lock(&data->handler_spinlock);
-	list_add_tail(&handler->node, &data->handler);
-	spin_unlock(&data->handler_spinlock);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(pmi_register_handler);
-
-void pmi_unregister_handler(struct pmi_handler *handler)
-{
-	if (!data)
-		return;
-
-	pr_debug("pmi: unregistering handler %p\n", handler);
-
-	spin_lock(&data->handler_spinlock);
-	list_del(&handler->node);
-	spin_unlock(&data->handler_spinlock);
-}
-EXPORT_SYMBOL_GPL(pmi_unregister_handler);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christian Krafft <[e-mail]>");
-MODULE_DESCRIPTION("IBM Platform Management Interrupt driver");

arch/powerpc/sysdev/xics/icp-native.c

···
 	icp_native_set_qirr(cpu, IPI_PRIORITY);
 }
 
-#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
-void icp_native_cause_ipi_rm(int cpu)
-{
-	/*
-	 * Currently not used to send IPIs to another CPU
-	 * on the same core. Only caller is KVM real mode.
-	 * Need the physical address of the XICS to be
-	 * previously saved in kvm_hstate in the paca.
-	 */
-	void __iomem *xics_phys;
-
-	/*
-	 * Just like the cause_ipi functions, it is required to
-	 * include a full barrier before causing the IPI.
-	 */
-	xics_phys = paca_ptrs[cpu]->kvm_hstate.xics_phys;
-	mb();
-	__raw_rm_writeb(IPI_PRIORITY, xics_phys + XICS_MFRR);
-}
-#endif
-
 /*
  * Called when an interrupt is received on an off-line CPU to
  * clear the interrupt, so that the CPU can go back to nap mode.

arch/powerpc/xmon/Makefile

···
 
 obj-y			+= xmon.o nonstdio.o spr_access.o xmon_bpts.o
 
-ifdef CONFIG_XMON_DISASSEMBLY
-obj-y			+= ppc-dis.o ppc-opc.o
-obj-$(CONFIG_SPU_BASE)	+= spu-dis.o spu-opc.o
-endif
+obj-$(CONFIG_XMON_DISASSEMBLY) += ppc-dis.o ppc-opc.o

arch/powerpc/xmon/spu-dis.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* Disassemble SPU instructions
-
-   Copyright 2006 Free Software Foundation, Inc.
-
-   This file is part of GDB, GAS, and the GNU binutils.
-
- */
-
-#include <linux/string.h>
-#include "nonstdio.h"
-#include "ansidecl.h"
-#include "spu.h"
-#include "dis-asm.h"
-
-/* This file provides a disassembler function which uses
-   the disassembler interface defined in dis-asm.h.   */
-
-extern const struct spu_opcode spu_opcodes[];
-extern const int spu_num_opcodes;
-
-#define SPU_DISASM_TBL_SIZE (1 << 11)
-static const struct spu_opcode *spu_disassemble_table[SPU_DISASM_TBL_SIZE];
-
-static void
-init_spu_disassemble (void)
-{
-  int i;
-
-  /* If two instructions have the same opcode then we prefer the first
-   * one.  In most cases it is just an alternate mnemonic. */
-  for (i = 0; i < spu_num_opcodes; i++)
-    {
-      int o = spu_opcodes[i].opcode;
-      if (o >= SPU_DISASM_TBL_SIZE)
-	continue; /* abort (); */
-      if (spu_disassemble_table[o] == 0)
-	spu_disassemble_table[o] = &spu_opcodes[i];
-    }
-}
-
-/* Determine the instruction from the 10 least significant bits. */
-static const struct spu_opcode *
-get_index_for_opcode (unsigned int insn)
-{
-  const struct spu_opcode *index;
-  unsigned int opcode = insn >> (32-11);
-
-  /* Init the table.  This assumes that element 0/opcode 0 (currently
-   * NOP) is always used */
-  if (spu_disassemble_table[0] == 0)
-    init_spu_disassemble ();
-
-  if ((index = spu_disassemble_table[opcode & 0x780]) != 0
-      && index->insn_type == RRR)
-    return index;
-
-  if ((index = spu_disassemble_table[opcode & 0x7f0]) != 0
-      && (index->insn_type == RI18 || index->insn_type == LBT))
-    return index;
-
-  if ((index = spu_disassemble_table[opcode & 0x7f8]) != 0
-      && index->insn_type == RI10)
-    return index;
-
-  if ((index = spu_disassemble_table[opcode & 0x7fc]) != 0
-      && (index->insn_type == RI16))
-    return index;
-
-  if ((index = spu_disassemble_table[opcode & 0x7fe]) != 0
-      && (index->insn_type == RI8))
-    return index;
-
-  if ((index = spu_disassemble_table[opcode & 0x7ff]) != 0)
-    return index;
-
-  return NULL;
-}
-
-/* Print a Spu instruction.  */
-
-int
-print_insn_spu (unsigned long insn, unsigned long memaddr)
-{
-  int value;
-  int hex_value;
-  const struct spu_opcode *index;
-  enum spu_insns tag;
-
-  index = get_index_for_opcode (insn);
-
-  if (index == 0)
-    {
-      printf(".long 0x%lx", insn);
-    }
-  else
-    {
-      int i;
-      int paren = 0;
-      tag = (enum spu_insns)(index - spu_opcodes);
-      printf("%s", index->mnemonic);
-      if (tag == M_BI || tag == M_BISL || tag == M_IRET || tag == M_BISLED
-	  || tag == M_BIHNZ || tag == M_BIHZ || tag == M_BINZ || tag == M_BIZ
-          || tag == M_SYNC || tag == M_HBR)
-	{
-	  int fb = (insn >> (32-18)) & 0x7f;
-	  if (fb & 0x40)
-	    printf(tag == M_SYNC ? "c" : "p");
-	  if (fb & 0x20)
-	    printf("d");
-	  if (fb & 0x10)
-	    printf("e");
-	}
-      if (index->arg[0] != 0)
-	printf("\t");
-      hex_value = 0;
-      for (i = 1;  i <= index->arg[0]; i++)
-	{
-	  int arg = index->arg[i];
-	  if (arg != A_P && !paren && i > 1)
-	    printf(",");
-
-	  switch (arg)
-	    {
-	    case A_T:
-	      printf("$%lu",
-				     DECODE_INSN_RT (insn));
-	      break;
-	    case A_A:
-	      printf("$%lu",
-				     DECODE_INSN_RA (insn));
-	      break;
-	    case A_B:
-	      printf("$%lu",
-				     DECODE_INSN_RB (insn));
-	      break;
-	    case A_C:
-	      printf("$%lu",
-				     DECODE_INSN_RC (insn));
-	      break;
-	    case A_S:
-	      printf("$sp%lu",
-				     DECODE_INSN_RA (insn));
-	      break;
-	    case A_H:
-	      printf("$ch%lu",
-				     DECODE_INSN_RA (insn));
-	      break;
-	    case A_P:
-	      paren++;
-	      printf("(");
-	      break;
-	    case A_U7A:
-	      printf("%lu",
-				     173 - DECODE_INSN_U8 (insn));
-	      break;
-	    case A_U7B:
-	      printf("%lu",
-				     155 - DECODE_INSN_U8 (insn));
-	      break;
-	    case A_S3:
-	    case A_S6:
-	    case A_S7:
-	    case A_S7N:
-	    case A_U3:
-	    case A_U5:
-	    case A_U6:
-	    case A_U7:
-	      hex_value = DECODE_INSN_I7 (insn);
-	      printf("%d", hex_value);
-	      break;
-	    case A_S11:
-	      print_address(memaddr + DECODE_INSN_I9a (insn) * 4);
-	      break;
-	    case A_S11I:
-	      print_address(memaddr + DECODE_INSN_I9b (insn) * 4);
-	      break;
-	    case A_S10:
-	    case A_S10B:
-	      hex_value = DECODE_INSN_I10 (insn);
-	      printf("%d", hex_value);
-	      break;
-	    case A_S14:
-	      hex_value = DECODE_INSN_I10 (insn) * 16;
-	      printf("%d", hex_value);
-	      break;
-	    case A_S16:
-	      hex_value = DECODE_INSN_I16 (insn);
-	      printf("%d", hex_value);
-	      break;
-	    case A_X16:
-	      hex_value = DECODE_INSN_U16 (insn);
-	      printf("%u", hex_value);
-	      break;
-	    case A_R18:
-	      value = DECODE_INSN_I16 (insn) * 4;
-	      if (value == 0)
-		printf("%d", value);
-	      else
-		{
-		  hex_value = memaddr + value;
-		  print_address(hex_value & 0x3ffff);
-		}
-	      break;
-	    case A_S18:
-	      value = DECODE_INSN_U16 (insn) * 4;
-	      if (value == 0)
-		printf("%d", value);
-	      else
-		print_address(value);
-	      break;
-	    case A_U18:
-	      value = DECODE_INSN_U18 (insn);
-	      if (value == 0 || 1)
-		{
-		  hex_value = value;
-		  printf("%u", value);
-		}
-	      else
-		print_address(value);
-	      break;
-	    case A_U14:
-	      hex_value = DECODE_INSN_U14 (insn);
-	      printf("%u", hex_value);
-	      break;
-	    }
-	  if (arg != A_P && paren)
-	    {
-	      printf(")");
-	      paren--;
-	    }
-	}
-      if (hex_value > 16)
-	printf("\t# %x", hex_value);
-    }
-  return 4;
-}

arch/powerpc/xmon/spu-insns.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/* SPU ELF support for BFD.
-
-   Copyright 2006 Free Software Foundation, Inc.
-
-   This file is part of BFD, the Binary File Descriptor library.
-
- */
-
-/* SPU Opcode Table
-
--=-=-= FORMAT =-=-=-
-                                             		                                             
-       +----+-------+-------+-------+-------+  		       +------------+-------+-------+-------+
-RRR    | op |  RC   |  RB   |  RA   |  RT   |		RI7    | op         |  I7   |  RA   |  RT   |
-       +----+-------+-------+-------+-------+		       +------------+-------+-------+-------+
-        0  3       1       1       2       3		        0          1       1       2       3 
-                   0       7       4       1		                   0       7       4       1 
-
-       +-----------+--------+-------+-------+		       +---------+----------+-------+-------+
-RI8    | op        |   I8   |  RA   |  RT   |		RI10   | op      |   I10    |  RA   |  RT   |
-       +-----------+--------+-------+-------+		       +---------+----------+-------+-------+
-        0         9        1       2       3		        0       7          1       2       3 
-                           7       4       1		                           7       4       1 
-
-       +----------+-----------------+-------+		       +--------+-------------------+-------+
-RI16   | op       |       I16       |  RT   |		RI18   | op     |       I18         |  RT   |
-       +----------+-----------------+-------+		       +--------+-------------------+-------+
-        0        8                 2       3		        0      6                   2       3 
-                                   4       1		                                   4       1 
-
-       +------------+-------+-------+-------+		       +-------+--+-----------------+-------+
-RR     | op         |  RB   |  RA   |  RT   |		LBT    | op    |RO|       I16       |  RO   |
-       +------------+-------+-------+-------+		       +-------+--+-----------------+-------+
-        0          1       1       2       3		        0     6  8                 2       3 
-                   0       7       4       1		                                   4       1 
-
-							       +------------+----+--+-------+-------+
-							LBTI   | op         | // |RO|  RA   |  RO   |
-							       +------------+----+--+-------+-------+
-							        0          1    1  1       2       3
-							                   0    5  7       4       1
-
--=-=-= OPCODE =-=-=-
-
-OPCODE field specifies the most significant 11bit of the instruction. Some formats don't have 11bits for opcode field, and in this
-case, bit field other than op are defined as 0s. For example, opcode of fma instruction which is RRR format is defined as 0x700,
-since 0x700 -> 11'b11100000000, this means opcode is 4'b1110, and other 7bits are defined as 7'b0000000.
-
--=-=-= ASM_FORMAT =-=-=-
-
-RRR category						RI7 category                               
-	ASM_RRR		mnemonic RC, RA, RB, RT		        ASM_RI4         mnemonic RT, RA, I4
-							        ASM_RI7         mnemonic RT, RA, I7
-
-RI8 category						RI10 category                               
-	ASM_RUI8	mnemonic RT, RA, UI8		        ASM_AI10        mnemonic RA, I10    
-							        ASM_RI10        mnemonic RT, RA, R10
-							        ASM_RI10IDX     mnemonic RT, I10(RA)
-
-RI16 category						RI18 category                           
-	ASM_I16W	mnemonic I16W			        ASM_RI18        mnemonic RT, I18
-	ASM_RI16	mnemonic RT, I16
-	ASM_RI16W	mnemonic RT, I16W
-
-RR category						LBT category                                    
-	ASM_MFSPR	mnemonic RT, SA			        ASM_LBT         mnemonic brinst, brtarg 
-	ASM_MTSPR	mnemonic SA, RT			                                                
-	ASM_NOOP	mnemonic			LBTI category                                   
-	ASM_RA		mnemonic RA			        ASM_LBTI        mnemonic brinst, RA     
-	ASM_RAB		mnemonic RA, RB
-	ASM_RDCH	mnemonic RT, CA
-	ASM_RR		mnemonic RT, RA, RB
-	ASM_RT		mnemonic RT
-	ASM_RTA		mnemonic RT, RA
-	ASM_WRCH	mnemonic CA, RT
-
-Note that RRR instructions have the names for RC and RT reversed from
-what's in the ISA, in order to put RT in the same position it appears
-for other formats.
-
--=-=-= DEPENDENCY =-=-=-
-
-DEPENDENCY filed consists of 5 digits. This represents which register is used as source and which register is used as target.
-The first(most significant) digit is always 0. Then it is followd by RC, RB, RA and RT digits.
-If the digit is 0, this means the corresponding register is not used in the instruction.
-If the digit is 1, this means the corresponding register is used as a source in the instruction.
-If the digit is 2, this means the corresponding register is used as a target in the instruction.
-If the digit is 3, this means the corresponding register is used as both source and target in the instruction.
-For example, fms instruction has 00113 as the DEPENDENCY field. This means RC is not used in this operation, RB and RA are
-used as sources and RT is the target.
-
--=-=-= PIPE =-=-=-
-
-This field shows which execution pipe is used for the instruction
-
-pipe0 execution pipelines:
-	FP6	SP floating pipeline
-	FP7	integer operations executed in SP floating pipeline
-	FPD	DP floating pipeline
-	FX2	FXU pipeline
-	FX3	Rotate/Shift pipeline
-	FXB	Byte pipeline
-	NOP	No pipeline
-
-pipe1 execution pipelines:
-	BR	Branch pipeline
-	LNOP	No pipeline
-	LS	Load/Store pipeline
-	SHUF	Shuffle pipeline
-	SPR	SPR/CH pipeline
-
-*/
-
-#define _A0() {0}
-#define _A1(a) {1,a}
-#define _A2(a,b) {2,a,b}
-#define _A3(a,b,c) {3,a,b,c}
-#define _A4(a,b,c,d) {4,a,b,c,d}
-
-/*    TAG		FORMAT	OPCODE	MNEMONIC	ASM_FORMAT	DEPENDENCY	PIPE	COMMENT				*/
-/*									0[RC][RB][RA][RT]					*/
-/*									1:src, 2:target						*/
-
-APUOP(M_BR,		RI16,	0x190,	"br",		_A1(A_R18),	00000,	BR)	/* BRel          IP<-IP+I16 */
-APUOP(M_BRSL,		RI16,	0x198,	"brsl",		_A2(A_T,A_R18),	00002,	BR)	/* BRelSetLink   RT,IP<-IP,IP+I16 */
-APUOP(M_BRA,		RI16,	0x180,	"bra",		_A1(A_S18),	00000,	BR)	/* BRAbs         IP<-I16 */
-APUOP(M_BRASL,		RI16,	0x188,	"brasl",	_A2(A_T,A_S18),	00002,	BR)	/* BRAbsSetLink  RT,IP<-IP,I16 */
-APUOP(M_FSMBI,		RI16,	0x194,	"fsmbi",	_A2(A_T,A_X16),	00002,	SHUF)	/* FormSelMask%I RT<-fsm(I16) */
-APUOP(M_LQA,		RI16,	0x184,	"lqa",		_A2(A_T,A_S18),	00002,	LS)	/* LoadQAbs      RT<-M[I16] */
-APUOP(M_LQR,		RI16,	0x19C,	"lqr",		_A2(A_T,A_R18),	00002,	LS)	/* LoadQRel      RT<-M[IP+I16] */
-APUOP(M_STOP,		RR,	0x000,	"stop",		_A0(),		00000,	BR)	/* STOP          stop */
-APUOP(M_STOP2,		RR,	0x000,	"stop",		_A1(A_U14),	00000,	BR)	/* STOP          stop */
-APUOP(M_STOPD,		RR,	0x140,	"stopd",	_A3(A_T,A_A,A_B),         00111,	BR)	/* STOPD         stop (with register dependencies) */
-APUOP(M_LNOP,		RR,	0x001,	"lnop",		_A0(),		00000,	LNOP)	/* LNOP          no_operation */
-APUOP(M_SYNC,		RR,	0x002,	"sync",		_A0(),		00000,	BR)	/* SYNC          flush_pipe */
-APUOP(M_DSYNC,		RR,	0x003,	"dsync",	_A0(),		00000,	BR)	/* DSYNC         flush_store_queue */
-APUOP(M_MFSPR,		RR,	0x00c,	"mfspr",	_A2(A_T,A_S),	00002,	SPR)	/* MFSPR         RT<-SA */
-APUOP(M_RDCH,		RR,	0x00d,	"rdch",		_A2(A_T,A_H),	00002,	SPR)	/* ReaDCHannel   RT<-CA:data */
-APUOP(M_RCHCNT,		RR,	0x00f,	"rchcnt",	_A2(A_T,A_H),	00002,	SPR)	/* ReaDCHanCouNT RT<-CA:count */
-APUOP(M_HBRA,		LBT,	0x080,	"hbra",		_A2(A_S11,A_S18),	00000,	LS)	/* HBRA          BTB[B9]<-M[I16] */
-APUOP(M_HBRR,		LBT,	0x090,	"hbrr",		_A2(A_S11,A_R18),	00000,	LS)	/* HBRR          BTB[B9]<-M[IP+I16] */
-APUOP(M_BRZ,		RI16,	0x100,	"brz",		_A2(A_T,A_R18),	00001,	BR)	/* BRZ           IP<-IP+I16_if(RT) */
-APUOP(M_BRNZ,		RI16,	0x108,	"brnz",		_A2(A_T,A_R18),	00001,	BR)	/* BRNZ          IP<-IP+I16_if(RT) */
-APUOP(M_BRHZ,		RI16,	0x110,	"brhz",		_A2(A_T,A_R18),	00001,	BR)	/* BRHZ          IP<-IP+I16_if(RT) */
-APUOP(M_BRHNZ,		RI16,	0x118,	"brhnz",	_A2(A_T,A_R18),	00001,	BR)	/* BRHNZ         IP<-IP+I16_if(RT) */
-APUOP(M_STQA,		RI16,	0x104,	"stqa",		_A2(A_T,A_S18),	00001,	LS)	/* SToreQAbs     M[I16]<-RT */
-APUOP(M_STQR,		RI16,	0x11C,	"stqr",		_A2(A_T,A_R18),	00001,	LS)	/* SToreQRel     M[IP+I16]<-RT */
-APUOP(M_MTSPR,		RR,	0x10c,	"mtspr",	_A2(A_S,A_T),	00001,	SPR)	/* MTSPR         SA<-RT */
-APUOP(M_WRCH,		RR,	0x10d,	"wrch",		_A2(A_H,A_T),	00001,	SPR)	/* ChanWRite     CA<-RT */
-APUOP(M_LQD,		RI10,	0x1a0,	"lqd",		_A4(A_T,A_S14,A_P,A_A),	00012,	LS)	/* LoadQDisp     RT<-M[Ra+I10] */
-APUOP(M_BI,		RR,	0x1a8,	"bi",		_A1(A_A),		00010,	BR)	/* BI            IP<-RA */
-APUOP(M_BISL,		RR,	0x1a9,	"bisl",		_A2(A_T,A_A),	00012,	BR)	/* BISL          RT,IP<-IP,RA */
-APUOP(M_IRET,  		RR,	0x1aa,	"iret",	        _A1(A_A), 	00010,	BR)	/* IRET          IP<-SRR0 */
-APUOP(M_IRET2, 		RR,	0x1aa,	"iret",	        _A0(),	 	00010,	BR)	/* IRET          IP<-SRR0 */
-APUOP(M_BISLED,		RR,	0x1ab,	"bisled",	_A2(A_T,A_A),	00012,	BR)	/* BISLED        RT,IP<-IP,RA_if(ext) */
-APUOP(M_HBR,		LBTI,	0x1ac,	"hbr",		_A2(A_S11I,A_A),	00010,	LS)	/* HBR           BTB[B9]<-M[Ra] */
-APUOP(M_FREST,		RR,	0x1b8,	"frest",	_A2(A_T,A_A),	00012,	SHUF)	/* FREST         RT<-recip(RA) */
-APUOP(M_FRSQEST,	RR,	0x1b9,	"frsqest",	_A2(A_T,A_A),	00012,	SHUF)	/* FRSQEST       RT<-rsqrt(RA) */
-APUOP(M_FSM,		RR,	0x1b4,	"fsm",		_A2(A_T,A_A),	00012,	SHUF)	/* FormSelMask%  RT<-expand(Ra) */
-APUOP(M_FSMH,		RR,	0x1b5,	"fsmh",		_A2(A_T,A_A),	00012,	SHUF)	/* FormSelMask%  RT<-expand(Ra) */
-APUOP(M_FSMB,		RR,	0x1b6,	"fsmb",		_A2(A_T,A_A),	00012,	SHUF)	/* FormSelMask%  RT<-expand(Ra) */
-APUOP(M_GB,		RR,	0x1b0,	"gb",		_A2(A_T,A_A),	00012,	SHUF)	/* GatherBits%   RT<-gather(RA) */
-APUOP(M_GBH,		RR,	0x1b1,	"gbh",		_A2(A_T,A_A),	00012,	SHUF)	/* GatherBits%   RT<-gather(RA) */
-APUOP(M_GBB,		RR,	0x1b2,	"gbb",		_A2(A_T,A_A),	00012,	SHUF)	/* GatherBits%   RT<-gather(RA) */
-APUOP(M_CBD,		RI7,	0x1f4,	"cbd",		_A4(A_T,A_U7,A_P,A_A),	00012,	SHUF)	/* genCtl%%insD  RT<-sta(Ra+I4,siz) */
-APUOP(M_CHD,		RI7,	0x1f5,	"chd",		_A4(A_T,A_U7,A_P,A_A),	00012,	SHUF)	/* genCtl%%insD  RT<-sta(Ra+I4,siz) */
-APUOP(M_CWD,		RI7,	0x1f6,	"cwd",		_A4(A_T,A_U7,A_P,A_A),	00012,	SHUF)	/* genCtl%%insD  RT<-sta(Ra+I4,siz) */
-APUOP(M_CDD,		RI7,	0x1f7,	"cdd",		_A4(A_T,A_U7,A_P,A_A),	00012,	SHUF)	/* genCtl%%insD  RT<-sta(Ra+I4,siz) */
-APUOP(M_ROTQBII,	RI7,	0x1f8,	"rotqbii",	_A3(A_T,A_A,A_U3),	00012,	SHUF)	/* ROTQBII       RT<-RA<<<I7 */
-APUOP(M_ROTQBYI,	RI7,	0x1fc,	"rotqbyi",	_A3(A_T,A_A,A_S7N),	00012,	SHUF)	/* ROTQBYI       RT<-RA<<<(I7*8) */
-APUOP(M_ROTQMBII,	RI7,	0x1f9,	"rotqmbii",	_A3(A_T,A_A,A_S3),	00012,	SHUF)	/* ROTQMBII      RT<-RA<<I7 */
-APUOP(M_ROTQMBYI,	RI7,	0x1fd,	"rotqmbyi",	_A3(A_T,A_A,A_S6),	00012,	SHUF)	/* ROTQMBYI      RT<-RA<<I7 */
-APUOP(M_SHLQBII,	RI7,	0x1fb,	"shlqbii",	_A3(A_T,A_A,A_U3),	00012,	SHUF)	/* SHLQBII       RT<-RA<<I7 */
-APUOP(M_SHLQBYI,	RI7,	0x1ff,	"shlqbyi",	_A3(A_T,A_A,A_U5),	00012,	SHUF)	/* SHLQBYI       RT<-RA<<I7 */
-APUOP(M_STQD,		RI10,	0x120,	"stqd",		_A4(A_T,A_S14,A_P,A_A),	00011,	LS)	/* SToreQDisp    M[Ra+I10]<-RT */
-APUOP(M_BIHNZ,		RR,	0x12b,	"bihnz",	_A2(A_T,A_A),	00011,	BR)	/* BIHNZ         IP<-RA_if(RT) */
-APUOP(M_BIHZ,		RR,	0x12a,	"bihz",		_A2(A_T,A_A),	00011,	BR)	/* BIHZ          IP<-RA_if(RT) */
-APUOP(M_BINZ,		RR,	0x129,	"binz",		_A2(A_T,A_A),	00011,	BR)	/* BINZ          IP<-RA_if(RT) */
-APUOP(M_BIZ,		RR,	0x128,	"biz",		_A2(A_T,A_A),	00011,	BR)	/* BIZ           IP<-RA_if(RT) */
-APUOP(M_CBX,		RR,	0x1d4,	"cbx",		_A3(A_T,A_A,A_B),		00112,	SHUF)	/* genCtl%%insX  RT<-sta(Ra+Rb,siz) */
-APUOP(M_CHX,		RR,	0x1d5,	"chx",		_A3(A_T,A_A,A_B),		00112,	SHUF)	/* genCtl%%insX  RT<-sta(Ra+Rb,siz) */
-APUOP(M_CWX,		RR,	0x1d6,	"cwx",		_A3(A_T,A_A,A_B),		00112,	SHUF)	/* genCtl%%insX  RT<-sta(Ra+Rb,siz) */
-APUOP(M_CDX,		RR,	0x1d7,	"cdx",		_A3(A_T,A_A,A_B),		00112,	SHUF)	/* genCtl%%insX  RT<-sta(Ra+Rb,siz) */
-APUOP(M_LQX,		RR,	0x1c4,	"lqx",		_A3(A_T,A_A,A_B),		00112,	LS)	/* LoadQindeX    RT<-M[Ra+Rb] */
-APUOP(M_ROTQBI,		RR,	0x1d8,	"rotqbi",	_A3(A_T,A_A,A_B),		00112,	SHUF)	/* ROTQBI        RT<-RA<<<Rb */
-APUOP(M_ROTQMBI,	RR,	0x1d9,	"rotqmbi",	_A3(A_T,A_A,A_B),		00112,	SHUF)	/* ROTQMBI       RT<-RA<<Rb */
-APUOP(M_SHLQBI,		RR,	0x1db,	"shlqbi",	_A3(A_T,A_A,A_B),		00112,	SHUF)	/* SHLQBI        RT<-RA<<Rb */
-APUOP(M_ROTQBY,		RR,	0x1dc,	"rotqby",	_A3(A_T,A_A,A_B),		00112,		SHUF)	/* ROTQBY        RT<-RA<<<(Rb*8) */
-APUOP(M_ROTQMBY,	RR,	0x1dd,	"rotqmby",	_A3(A_T,A_A,A_B),		00112,		SHUF)	/* ROTQMBY       RT<-RA<<Rb */
-APUOP(M_SHLQBY,		RR,	0x1df,	"shlqby",	_A3(A_T,A_A,A_B),		00112,	SHUF)	/* SHLQBY        RT<-RA<<Rb */
-APUOP(M_ROTQBYBI,	RR,	0x1cc,	"rotqbybi",	_A3(A_T,A_A,A_B),		00112,		SHUF)	/* ROTQBYBI      RT<-RA<<Rb */
-APUOP(M_ROTQMBYBI,	RR,	0x1cd,	"rotqmbybi",	_A3(A_T,A_A,A_B),		00112,		SHUF)	/* ROTQMBYBI     RT<-RA<<Rb */
-APUOP(M_SHLQBYBI,	RR,	0x1cf,	"shlqbybi",	_A3(A_T,A_A,A_B),		00112,	SHUF)	/* SHLQBYBI      RT<-RA<<Rb */
-APUOP(M_STQX,		RR,	0x144,	"stqx",		_A3(A_T,A_A,A_B),		00111,	LS)	/* SToreQindeX   M[Ra+Rb]<-RT */
-APUOP(M_SHUFB,		RRR,	0x580,	"shufb",	_A4(A_C,A_A,A_B,A_T),	02111,	SHUF)	/* SHUFfleBytes  RC<-f(RA,RB,RT) */
-APUOP(M_IL,		RI16,	0x204,	"il",		_A2(A_T,A_S16),	00002,	FX2)	/* ImmLoad       RT<-sxt(I16) */
-APUOP(M_ILH,		RI16,	0x20c,	"ilh",		_A2(A_T,A_X16),	00002,	FX2)	/* ImmLoadH      RT<-I16 */
-APUOP(M_ILHU,		RI16,	0x208,	"ilhu",		_A2(A_T,A_X16),	00002,	FX2)	/* ImmLoadHUpper RT<-I16<<16 */
-APUOP(M_ILA,		RI18,	0x210,	"ila",		_A2(A_T,A_U18),	00002,	FX2)	/* ImmLoadAddr   RT<-zxt(I18) */
-APUOP(M_NOP,		RR,	0x201,	"nop",		_A1(A_T),		00000,	NOP)	/* XNOP          no_operation */
-APUOP(M_NOP2,		RR,	0x201,	"nop",		_A0(),		00000,	NOP)	/* XNOP          no_operation */
-APUOP(M_IOHL,		RI16,	0x304,	"iohl",		_A2(A_T,A_X16),	00003,	FX2)	/* AddImmeXt     RT<-RT+sxt(I16) */
-APUOP(M_ANDBI,		RI10,	0x0b0,	"andbi",	_A3(A_T,A_A,A_S10B),	00012,	FX2)	/* AND%I         RT<-RA&I10 */
-APUOP(M_ANDHI,		RI10,	0x0a8,	"andhi",	_A3(A_T,A_A,A_S10),	00012,	FX2)	/* AND%I         RT<-RA&I10 */
-APUOP(M_ANDI,		RI10,	0x0a0,	"andi",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* AND%I         RT<-RA&I10 */
-APUOP(M_ORBI,		RI10,	0x030,	"orbi",		_A3(A_T,A_A,A_S10B),	00012,	FX2)	/* OR%I          RT<-RA|I10 */
-APUOP(M_ORHI,		RI10,	0x028,	"orhi",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* OR%I          RT<-RA|I10 */
-APUOP(M_ORI,		RI10,	0x020,	"ori",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* OR%I          RT<-RA|I10 */
-APUOP(M_ORX,		RR,	0x1f0,	"orx",		_A2(A_T,A_A),		00012,	BR)	/* ORX           RT<-RA.w0|RA.w1|RA.w2|RA.w3 */
-APUOP(M_XORBI,		RI10,	0x230,	"xorbi",	_A3(A_T,A_A,A_S10B),	00012,	FX2)	/* XOR%I         RT<-RA^I10 */
-APUOP(M_XORHI,		RI10,	0x228,	"xorhi",	_A3(A_T,A_A,A_S10),	00012,	FX2)	/* XOR%I         RT<-RA^I10 */
-APUOP(M_XORI,		RI10,	0x220,	"xori",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* XOR%I         RT<-RA^I10 */
-APUOP(M_AHI,		RI10,	0x0e8,	"ahi",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* Add%Immed     RT<-RA+I10 */
-APUOP(M_AI,		RI10,	0x0e0,	"ai",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* Add%Immed     RT<-RA+I10 */
-APUOP(M_SFHI,		RI10,	0x068,	"sfhi",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* SubFrom%Imm   RT<-I10-RA */
-APUOP(M_SFI,		RI10,	0x060,	"sfi",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* SubFrom%Imm   RT<-I10-RA */
-APUOP(M_CGTBI,		RI10,	0x270,	"cgtbi",	_A3(A_T,A_A,A_S10B),	00012,	FX2)	/* CGT%I         RT<-(RA>I10) */
-APUOP(M_CGTHI,		RI10,	0x268,	"cgthi",	_A3(A_T,A_A,A_S10),	00012,	FX2)	/* CGT%I         RT<-(RA>I10) */
-APUOP(M_CGTI,		RI10,	0x260,	"cgti",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* CGT%I         RT<-(RA>I10) */
-APUOP(M_CLGTBI,		RI10,	0x2f0,	"clgtbi",	_A3(A_T,A_A,A_S10B),	00012,	FX2)	/* CLGT%I        RT<-(RA>I10) */
-APUOP(M_CLGTHI,		RI10,	0x2e8,	"clgthi",	_A3(A_T,A_A,A_S10),	00012,	FX2)	/* CLGT%I        RT<-(RA>I10) */
-APUOP(M_CLGTI,		RI10,	0x2e0,	"clgti",	_A3(A_T,A_A,A_S10),	00012,	FX2)	/* CLGT%I        RT<-(RA>I10) */
-APUOP(M_CEQBI,		RI10,	0x3f0,	"ceqbi",	_A3(A_T,A_A,A_S10B),	00012,	FX2)	/* CEQ%I         RT<-(RA=I10) */
-APUOP(M_CEQHI,		RI10,	0x3e8,	"ceqhi",	_A3(A_T,A_A,A_S10),	00012,	FX2)	/* CEQ%I         RT<-(RA=I10) */
-APUOP(M_CEQI,		RI10,	0x3e0,	"ceqi",		_A3(A_T,A_A,A_S10),	00012,	FX2)	/* CEQ%I         RT<-(RA=I10) */
-APUOP(M_HGTI,		RI10,	0x278,	"hgti",		_A3(A_T,A_A,A_S10),	00010,	FX2)	/* HaltGTI       halt_if(RA>I10) */
-APUOP(M_HGTI2,		RI10,	0x278,	"hgti",		_A2(A_A,A_S10),	00010,	FX2)	/* HaltGTI       halt_if(RA>I10) */
-APUOP(M_HLGTI,		RI10,	0x2f8,	"hlgti",	_A3(A_T,A_A,A_S10),	00010,	FX2)	/* HaltLGTI      halt_if(RA>I10) */
-APUOP(M_HLGTI2,		RI10,	0x2f8,	"hlgti",	_A2(A_A,A_S10),	00010,	FX2)	/* HaltLGTI      halt_if(RA>I10) */
-APUOP(M_HEQI,		RI10,	0x3f8,	"heqi",		_A3(A_T,A_A,A_S10),	00010,	FX2)	/* HaltEQImm     halt_if(RA=I10) */
-APUOP(M_HEQI2,		RI10,	0x3f8,	"heqi",		_A2(A_A,A_S10),	00010,	FX2)	/* HaltEQImm     halt_if(RA=I10) */
-APUOP(M_MPYI,		RI10,	0x3a0,	"mpyi",		_A3(A_T,A_A,A_S10),	00012,	FP7)	/* MPYI          RT<-RA*I10 */
-APUOP(M_MPYUI,		RI10,	0x3a8,	"mpyui",	_A3(A_T,A_A,A_S10),	00012,	FP7)	/* MPYUI         RT<-RA*I10 */
-APUOP(M_CFLTS,		RI8,	0x3b0,	"cflts",	_A3(A_T,A_A,A_U7A),	00012,	FP7)	/* CFLTS         RT<-int(RA,I8) */
-APUOP(M_CFLTU,		RI8,	0x3b2,	"cfltu",	_A3(A_T,A_A,A_U7A),	00012,	FP7)	/* CFLTU         RT<-int(RA,I8) */
-APUOP(M_CSFLT,		RI8,	0x3b4,	"csflt",	_A3(A_T,A_A,A_U7B),	00012,	FP7)	/* CSFLT         RT<-flt(RA,I8) */
-APUOP(M_CUFLT,		RI8,	0x3b6,	"cuflt",	_A3(A_T,A_A,A_U7B),	00012,	FP7)	/* CUFLT         RT<-flt(RA,I8) */
-APUOP(M_FESD,		RR,	0x3b8,	"fesd",		_A2(A_T,A_A),	00012,	FPD)	/* FESD          RT<-double(RA) */
-APUOP(M_FRDS,		RR,	0x3b9,	"frds",		_A2(A_T,A_A),	00012,	FPD)	/* FRDS          RT<-single(RA) */
-APUOP(M_FSCRRD,		RR,	0x398,	"fscrrd",	_A1(A_T),		00002,	FPD)	/* FSCRRD        RT<-FP_status */
-APUOP(M_FSCRWR,		RR,	0x3ba,	"fscrwr",	_A2(A_T,A_A),	00010,	FP7)	/* FSCRWR        FP_status<-RA */
-APUOP(M_FSCRWR2,	RR,	0x3ba,	"fscrwr",	_A1(A_A),		00010,	FP7)	/* FSCRWR        FP_status<-RA */
-APUOP(M_CLZ,		RR,	0x2a5,	"clz",		_A2(A_T,A_A),	00012,	FX2)	/* CLZ           RT<-clz(RA) */
-APUOP(M_CNTB,		RR,	0x2b4,	"cntb",		_A2(A_T,A_A),	00012,	FXB)	/* CNT           RT<-pop(RA) */
-APUOP(M_XSBH,		RR,	0x2b6,	"xsbh",		_A2(A_T,A_A),	00012,	FX2)	/* eXtSignBtoH   RT<-sign_ext(RA) */
-APUOP(M_XSHW,		RR,	0x2ae,	"xshw",		_A2(A_T,A_A),	00012,	FX2)	/* eXtSignHtoW   RT<-sign_ext(RA) */
-APUOP(M_XSWD,		RR,	0x2a6,	"xswd",		_A2(A_T,A_A),	00012,	FX2)	/* eXtSignWtoD   RT<-sign_ext(RA) */
-APUOP(M_ROTI,		RI7,	0x078,	"roti",		_A3(A_T,A_A,A_S7N),	00012,	FX3)	/* ROT%I         RT<-RA<<<I7 */
-APUOP(M_ROTMI,		RI7,	0x079,	"rotmi",	_A3(A_T,A_A,A_S7),	00012,	FX3)	/* ROT%MI        RT<-RA<<I7 */
-APUOP(M_ROTMAI,		RI7,	0x07a,	"rotmai",	_A3(A_T,A_A,A_S7),	00012,	FX3)	/* ROTMA%I       RT<-RA<<I7 */
-APUOP(M_SHLI,		RI7,	0x07b,	"shli",		_A3(A_T,A_A,A_U6),	00012,	FX3)	/* SHL%I         RT<-RA<<I7 */
-APUOP(M_ROTHI,		RI7,	0x07c,	"rothi",	_A3(A_T,A_A,A_S7N),	00012,	FX3)	/* ROT%I         RT<-RA<<<I7 */
-APUOP(M_ROTHMI,		RI7,	0x07d,	"rothmi",	_A3(A_T,A_A,A_S6),	00012,	FX3)	/* ROT%MI        RT<-RA<<I7 */
-APUOP(M_ROTMAHI,	RI7,	0x07e,	"rotmahi",	_A3(A_T,A_A,A_S6),	00012,	FX3)	/* ROTMA%I       RT<-RA<<I7 */
-APUOP(M_SHLHI,		RI7,	0x07f,	"shlhi",	_A3(A_T,A_A,A_U5),	00012,	FX3)	/* SHL%I         RT<-RA<<I7 */
-APUOP(M_A,		RR,	0x0c0,	"a",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* Add%          RT<-RA+RB */
-APUOP(M_AH,		RR,	0x0c8,	"ah",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* Add%          RT<-RA+RB */
-APUOP(M_SF,		RR,	0x040,	"sf",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* SubFrom%      RT<-RB-RA */
-APUOP(M_SFH,		RR,	0x048,	"sfh",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* SubFrom%      RT<-RB-RA */
-APUOP(M_CGT,		RR,	0x240,	"cgt",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* CGT%          RT<-(RA>RB) */
-APUOP(M_CGTB,		RR,	0x250,	"cgtb",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* CGT%          RT<-(RA>RB) */
-APUOP(M_CGTH,		RR,	0x248,	"cgth",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* CGT%          RT<-(RA>RB) */
-APUOP(M_CLGT,		RR,	0x2c0,	"clgt",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* CLGT%         RT<-(RA>RB) */
-APUOP(M_CLGTB,		RR,	0x2d0,	"clgtb",	_A3(A_T,A_A,A_B),		00112,	FX2)	/* CLGT%         RT<-(RA>RB) */
-APUOP(M_CLGTH,		RR,	0x2c8,	"clgth",	_A3(A_T,A_A,A_B),		00112,	FX2)	/* CLGT%         RT<-(RA>RB) */
-APUOP(M_CEQ,		RR,	0x3c0,	"ceq",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* CEQ%          RT<-(RA=RB) */
-APUOP(M_CEQB,		RR,	0x3d0,	"ceqb",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* CEQ%          RT<-(RA=RB) */
-APUOP(M_CEQH,		RR,	0x3c8,	"ceqh",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* CEQ%          RT<-(RA=RB) */
-APUOP(M_HGT,		RR,	0x258,	"hgt",		_A3(A_T,A_A,A_B),		00110,	FX2)	/* HaltGT        halt_if(RA>RB) */
-APUOP(M_HGT2,		RR,	0x258,	"hgt",		_A2(A_A,A_B),	00110,	FX2)	/* HaltGT        halt_if(RA>RB) */
-APUOP(M_HLGT,		RR,	0x2d8,	"hlgt",		_A3(A_T,A_A,A_B),		00110,	FX2)	/* HaltLGT       halt_if(RA>RB) */
-APUOP(M_HLGT2,		RR,	0x2d8,	"hlgt",		_A2(A_A,A_B),	00110,	FX2)	/* HaltLGT       halt_if(RA>RB) */
-APUOP(M_HEQ,		RR,	0x3d8,	"heq",		_A3(A_T,A_A,A_B),		00110,	FX2)	/* HaltEQ        halt_if(RA=RB) */
-APUOP(M_HEQ2,		RR,	0x3d8,	"heq",		_A2(A_A,A_B),	00110,	FX2)	/* HaltEQ        halt_if(RA=RB) */
-APUOP(M_FCEQ,		RR,	0x3c2,	"fceq",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* FCEQ          RT<-(RA=RB) */
-APUOP(M_FCMEQ,		RR,	0x3ca,	"fcmeq",	_A3(A_T,A_A,A_B),		00112,	FX2)	/* FCMEQ         RT<-(|RA|=|RB|) */
-APUOP(M_FCGT,		RR,	0x2c2,	"fcgt",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* FCGT          RT<-(RA<RB) */
-APUOP(M_FCMGT,		RR,	0x2ca,	"fcmgt",	_A3(A_T,A_A,A_B),		00112,	FX2)	/* FCMGT         RT<-(|RA|<|RB|) */
-APUOP(M_AND,		RR,	0x0c1,	"and",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* AND           RT<-RA&RB */
-APUOP(M_NAND,		RR,	0x0c9,	"nand",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* NAND          RT<-!(RA&RB) */
-APUOP(M_OR,		RR,	0x041,	"or",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* OR            RT<-RA|RB */
-APUOP(M_NOR,		RR,	0x049,	"nor",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* NOR           RT<-!(RA&RB) */
-APUOP(M_XOR,		RR,	0x241,	"xor",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* XOR           RT<-RA^RB */
-APUOP(M_EQV,		RR,	0x249,	"eqv",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* EQuiValent    RT<-!(RA^RB) */
-APUOP(M_ANDC,		RR,	0x2c1,	"andc",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* ANDComplement RT<-RA&!RB */
-APUOP(M_ORC,		RR,	0x2c9,	"orc",		_A3(A_T,A_A,A_B),		00112,	FX2)	/* ORComplement  RT<-RA|!RB */
-APUOP(M_ABSDB,		RR,	0x053,	"absdb",	_A3(A_T,A_A,A_B),		00112,	FXB)	/* ABSoluteDiff  RT<-|RA-RB| */
-APUOP(M_AVGB,		RR,	0x0d3,	"avgb",		_A3(A_T,A_A,A_B),		00112,	FXB)	/* AVG%          RT<-(RA+RB+1)/2 */
-APUOP(M_SUMB,		RR,	0x253,	"sumb",		_A3(A_T,A_A,A_B),		00112,	FXB)	/* SUM%          RT<-f(RA,RB) */
-APUOP(M_DFA,		RR,	0x2cc,	"dfa",		_A3(A_T,A_A,A_B),		00112,	FPD)	/* DFAdd         RT<-RA+RB */
-APUOP(M_DFM,		RR,	0x2ce,	"dfm",		_A3(A_T,A_A,A_B),		00112,	FPD)	/* DFMul         RT<-RA*RB */
-APUOP(M_DFS,		RR,	0x2cd,	"dfs",		_A3(A_T,A_A,A_B),		00112,	FPD)	/* DFSub         RT<-RA-RB */
-APUOP(M_FA,		RR,	0x2c4,	"fa",		_A3(A_T,A_A,A_B),		00112,	FP6)	/* FAdd          RT<-RA+RB */
-APUOP(M_FM,		RR,	0x2c6,	"fm",		_A3(A_T,A_A,A_B),		00112,	FP6)	/* FMul          RT<-RA*RB */
-APUOP(M_FS,		RR,	0x2c5,	"fs",		_A3(A_T,A_A,A_B),		00112,	FP6)	/* FSub          RT<-RA-RB */
-APUOP(M_MPY,		RR,	0x3c4,	"mpy",		_A3(A_T,A_A,A_B),		00112,	FP7)	/* MPY           RT<-RA*RB */
-APUOP(M_MPYH,		RR,	0x3c5,	"mpyh",		_A3(A_T,A_A,A_B),		00112,	FP7)	/* MPYH          RT<-(RAh*RB)<<16 */
-APUOP(M_MPYHH,		RR,	0x3c6,	"mpyhh",	_A3(A_T,A_A,A_B),		00112,	FP7)	/* MPYHH         RT<-RAh*RBh */
-APUOP(M_MPYHHU,		RR,	0x3ce,	"mpyhhu",	_A3(A_T,A_A,A_B),		00112,	FP7)	/* MPYHHU        RT<-RAh*RBh */
-APUOP(M_MPYS,		RR,	0x3c7,	"mpys",		_A3(A_T,A_A,A_B),		00112,	FP7)	/* MPYS          RT<-(RA*RB)>>16 */
-APUOP(M_MPYU,		RR,	0x3cc,	"mpyu",		_A3(A_T,A_A,A_B),		00112,	FP7)	/* MPYU          RT<-RA*RB */
-APUOP(M_FI,		RR,	0x3d4,	"fi",		_A3(A_T,A_A,A_B),		00112,	FP7)	/* FInterpolate  RT<-f(RA,RB) */
-APUOP(M_ROT,		RR,	0x058,	"rot",		_A3(A_T,A_A,A_B),		00112,	FX3)	/* ROT%          RT<-RA<<<RB */
-APUOP(M_ROTM,		RR,	0x059,	"rotm",		_A3(A_T,A_A,A_B),		00112,	FX3)	/* ROT%M         RT<-RA<<Rb */
-APUOP(M_ROTMA,		RR,	0x05a,	"rotma",	_A3(A_T,A_A,A_B),		00112,	FX3)	/* ROTMA%        RT<-RA<<Rb */
-APUOP(M_SHL,		RR,	0x05b,	"shl",		_A3(A_T,A_A,A_B),		00112,	FX3)	/* SHL%          RT<-RA<<Rb */
-APUOP(M_ROTH,		RR,	0x05c,	"roth",		_A3(A_T,A_A,A_B),		00112,	FX3)	/* ROT%          RT<-RA<<<RB */
-APUOP(M_ROTHM,		RR,	0x05d,	"rothm",	_A3(A_T,A_A,A_B),		00112,	FX3)	/* ROT%M         RT<-RA<<Rb */
-APUOP(M_ROTMAH,		RR,	0x05e,	"rotmah",	_A3(A_T,A_A,A_B),		00112,	FX3)	/* ROTMA%        RT<-RA<<Rb */
-APUOP(M_SHLH,		RR,	0x05f,	"shlh",		_A3(A_T,A_A,A_B),		00112,	FX3)	/* SHL%          RT<-RA<<Rb */
-APUOP(M_MPYHHA,		RR,	0x346,	"mpyhha",	_A3(A_T,A_A,A_B),		00113,	FP7)	/* MPYHHA        RT<-RAh*RBh+RT */
-APUOP(M_MPYHHAU,	RR,	0x34e,	"mpyhhau",	_A3(A_T,A_A,A_B),		00113,	FP7)	/* MPYHHAU       RT<-RAh*RBh+RT */
-APUOP(M_DFMA,		RR,	0x35c,	"dfma",		_A3(A_T,A_A,A_B),		00113,	FPD)	/* DFMAdd        RT<-RT+RA*RB */
-APUOP(M_DFMS,		RR,	0x35d,	"dfms",		_A3(A_T,A_A,A_B),		00113,	FPD)	/* DFMSub        RT<-RA*RB-RT */
-APUOP(M_DFNMS,		RR,	0x35e,	"dfnms",	_A3(A_T,A_A,A_B),		00113,	FPD)	/* DFNMSub       RT<-RT-RA*RB */
-APUOP(M_DFNMA,		RR,	0x35f,	"dfnma",	_A3(A_T,A_A,A_B),		00113,	FPD)	/* DFNMAdd       RT<-(-RT)-RA*RB */
-APUOP(M_FMA,		RRR,	0x700,	"fma",		_A4(A_C,A_A,A_B,A_T),	02111,	FP6)	/* FMAdd         RC<-RT+RA*RB */
-APUOP(M_FMS,		RRR,	0x780,	"fms",		_A4(A_C,A_A,A_B,A_T),	02111,	FP6)	/* FMSub         RC<-RA*RB-RT */
-APUOP(M_FNMS,		RRR,	0x680,	"fnms",		_A4(A_C,A_A,A_B,A_T),	02111,	FP6)	/* FNMSub        RC<-RT-RA*RB */
-APUOP(M_MPYA,		RRR,	0x600,	"mpya",		_A4(A_C,A_A,A_B,A_T),	02111,	FP7)	/* MPYA          RC<-RA*RB+RT */
-APUOP(M_SELB,		RRR,	0x400,	"selb",		_A4(A_C,A_A,A_B,A_T),	02111,	FX2)	/* SELectBits    RC<-RA&RT|RB&!RT */
-/* for system function call, this uses op-code of mtspr */
-APUOP(M_SYSCALL,	RI7,    0x10c,	"syscall",      _A3(A_T,A_A,A_S7N),	00002,	SPR)        /* System Call */
-/*
-pseudo instruction:
-system call
-value of I9	operation
-0	halt
-1		rt[0] = open(MEM[ra[0]],	ra[1])
-2		rt[0] = close(ra[0])
-3		rt[0] = read(ra[0],	MEM[ra[1]],	ra[2])
-4		rt[0] = write(ra[0],	MEM[ra[1]],	ra[2])
-5		printf(MEM[ra[0]],	ra[1],	ra[2],	ra[3])
-42		rt[0] = clock()
-52		rt[0] = lseek(ra0,	ra1,	ra2)
-
-*/
-
-
-/* new multiprecision add/sub */
-APUOP(M_ADDX,		RR,	0x340,	"addx",		_A3(A_T,A_A,A_B),		00113,		FX2)	/* Add_eXtended  RT<-RA+RB+RT */
-APUOP(M_CG,		RR,	0x0c2,	"cg",		_A3(A_T,A_A,A_B),		00112,		FX2)	/* CarryGenerate RT<-cout(RA+RB) */
-APUOP(M_CGX,		RR,	0x342,	"cgx",		_A3(A_T,A_A,A_B),		00113,		FX2)	/* CarryGen_eXtd RT<-cout(RA+RB+RT) */
-APUOP(M_SFX,		RR,	0x341,	"sfx",		_A3(A_T,A_A,A_B),		00113,		FX2)	/* Add_eXtended  RT<-RA+RB+RT */
-APUOP(M_BG,		RR,	0x042,	"bg",		_A3(A_T,A_A,A_B),		00112,		FX2)	/* CarryGenerate RT<-cout(RA+RB) */
-APUOP(M_BGX,		RR,	0x343,	"bgx",		_A3(A_T,A_A,A_B),		00113,		FX2)	/* CarryGen_eXtd RT<-cout(RA+RB+RT) */
-
-/*
-
-The following ops are a subset of above except with feature bits set.
-Feature bits are bits 11-17 of the instruction:
-
-  11 - C & P feature bit
-  12 - disable interrupts
-  13 - enable interrupts
-
-*/
-APUOPFB(M_BID,		RR,	0x1a8,	0x20,	"bid",		_A1(A_A),		00010,	BR)	/* BI            IP<-RA */
-APUOPFB(M_BIE,		RR,	0x1a8,	0x10,	"bie",		_A1(A_A),		00010,	BR)	/* BI            IP<-RA */
-APUOPFB(M_BISLD,	RR,	0x1a9,	0x20,	"bisld",	_A2(A_T,A_A),	00012,	BR)	/* BISL          RT,IP<-IP,RA */
-APUOPFB(M_BISLE,	RR,	0x1a9,	0x10,	"bisle",	_A2(A_T,A_A),	00012,	BR)	/* BISL          RT,IP<-IP,RA */
-APUOPFB(M_IRETD,  	RR,	0x1aa,	0x20,	"iretd",	_A1(A_A), 	00010,	BR)	/* IRET          IP<-SRR0 */
-APUOPFB(M_IRETD2,  	RR,	0x1aa,	0x20,	"iretd",	_A0(),	 	00010,	BR)	/* IRET          IP<-SRR0 */
-APUOPFB(M_IRETE,  	RR,	0x1aa,	0x10,	"irete",	_A1(A_A), 	00010,	BR)	/* IRET          IP<-SRR0 */
-APUOPFB(M_IRETE2,  	RR,	0x1aa,	0x10,	"irete",	_A0(),	 	00010,	BR)	/* IRET          IP<-SRR0 */
-APUOPFB(M_BISLEDD,	RR,	0x1ab,	0x20,	"bisledd",	_A2(A_T,A_A),	00012,	BR)	/* BISLED        RT,IP<-IP,RA_if(ext) */
-APUOPFB(M_BISLEDE,	RR,	0x1ab,	0x10,	"bislede",	_A2(A_T,A_A),	00012,	BR)	/* BISLED        RT,IP<-IP,RA_if(ext) */
-APUOPFB(M_BIHNZD,	RR,	0x12b,	0x20,	"bihnzd",	_A2(A_T,A_A),	00011,	BR)	/* BIHNZ         IP<-RA_if(RT) */
-APUOPFB(M_BIHNZE,	RR,	0x12b,	0x10,	"bihnze",	_A2(A_T,A_A),	00011,	BR)	/* BIHNZ         IP<-RA_if(RT) */
-APUOPFB(M_BIHZD,	RR,	0x12a,	0x20,	"bihzd",	_A2(A_T,A_A),	00011,	BR)	/* BIHZ          IP<-RA_if(RT) */
-APUOPFB(M_BIHZE,	RR,	0x12a,	0x10,	"bihze",	_A2(A_T,A_A),	00011,	BR)	/* BIHZ          IP<-RA_if(RT) */
-APUOPFB(M_BINZD,	RR,	0x129,	0x20,	"binzd",	_A2(A_T,A_A),	00011,	BR)	/* BINZ          IP<-RA_if(RT) */
-APUOPFB(M_BINZE,	RR,	0x129,	0x10,	"binze",	_A2(A_T,A_A),	00011,	BR)	/* BINZ          IP<-RA_if(RT) */
-APUOPFB(M_BIZD,		RR,	0x128,	0x20,	"bizd",		_A2(A_T,A_A),	00011,	BR)	/* BIZ           IP<-RA_if(RT) */
-APUOPFB(M_BIZE,		RR,	0x128,	0x10,	"bize",		_A2(A_T,A_A),	00011,	BR)	/* BIZ           IP<-RA_if(RT) */
-APUOPFB(M_SYNCC,	RR,	0x002,	0x40,	"syncc",	_A0(),		00000,	BR)	/* SYNCC          flush_pipe */
-APUOPFB(M_HBRP,		LBTI,	0x1ac,	0x40,	"hbrp",		_A0(),	        00010,	LS)	/* HBR           BTB[B9]<-M[Ra] */
-
-/* Synonyms required by the AS manual. */
-APUOP(M_LR,		RI10,	0x020,	"lr",		_A2(A_T,A_A),	00012,	FX2)	/* OR%I          RT<-RA|I10 */
-APUOP(M_BIHT,		RR,	0x12b,	"biht", 	_A2(A_T,A_A),	00011,	BR)	/* BIHNZ         IP<-RA_if(RT) */
-APUOP(M_BIHF,		RR,	0x12a,	"bihf",		_A2(A_T,A_A),	00011,	BR)	/* BIHZ          IP<-RA_if(RT) */
-APUOP(M_BIT,		RR,	0x129,	"bit",		_A2(A_T,A_A),	00011,	BR)	/* BINZ          IP<-RA_if(RT) */
-APUOP(M_BIF,		RR,	0x128,	"bif",		_A2(A_T,A_A),	00011,	BR)	/* BIZ           IP<-RA_if(RT) */
-APUOPFB(M_BIHTD,	RR,	0x12b,	0x20,	"bihtd",	_A2(A_T,A_A),	00011,	BR)	/* BIHNF         IP<-RA_if(RT) */
-APUOPFB(M_BIHTE,	RR,	0x12b,	0x10,	"bihte",	_A2(A_T,A_A),	00011,	BR)	/* BIHNF         IP<-RA_if(RT) */
-APUOPFB(M_BIHFD,	RR,	0x12a,	0x20,	"bihfd",	_A2(A_T,A_A),	00011,	BR)	/* BIHZ          IP<-RA_if(RT) */
-APUOPFB(M_BIHFE,	RR,	0x12a,	0x10,	"bihfe",	_A2(A_T,A_A),	00011,	BR)	/* BIHZ          IP<-RA_if(RT) */
-APUOPFB(M_BITD, 	RR,	0x129,	0x20,	"bitd", 	_A2(A_T,A_A),	00011,	BR)	/* BINF          IP<-RA_if(RT) */
-APUOPFB(M_BITE, 	RR,	0x129,	0x10,	"bite", 	_A2(A_T,A_A),	00011,	BR)	/* BINF          IP<-RA_if(RT) */
-APUOPFB(M_BIFD,		RR,	0x128,	0x20,	"bifd",		_A2(A_T,A_A),	00011,	BR)	/* BIZ           IP<-RA_if(RT) */
-APUOPFB(M_BIFE,		RR,	0x128,	0x10,	"bife",		_A2(A_T,A_A),	00011,	BR)	/* BIZ           IP<-RA_if(RT) */
-
-#undef _A0
-#undef _A1
-#undef _A2
-#undef _A3
-#undef _A4

arch/powerpc/xmon/spu-opc.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* SPU opcode list
-
-   Copyright 2006 Free Software Foundation, Inc.
-
-   This file is part of GDB, GAS, and the GNU binutils.
-
- */
-
-#include <linux/kernel.h>
-#include <linux/bug.h>
-#include "spu.h"
-
-/* This file holds the Spu opcode table */
-
-
-/*
-   Example contents of spu-insn.h
-      id_tag	mode	mode	type	opcode	mnemonic	asmtype	    dependency		FPU	L/S?	branch?	instruction   
-                QUAD	WORD                                               (0,RC,RB,RA,RT)    latency  			              		
-   APUOP(M_LQD,	1,	0,	RI9,	0x1f8,	"lqd",		ASM_RI9IDX,	00012,		FXU,	1,	0)	Load Quadword d-form 
- */
-
-const struct spu_opcode spu_opcodes[] = {
-#define APUOP(TAG,MACFORMAT,OPCODE,MNEMONIC,ASMFORMAT,DEP,PIPE) \
-	{ MACFORMAT, OPCODE, MNEMONIC, ASMFORMAT },
-#define APUOPFB(TAG,MACFORMAT,OPCODE,FB,MNEMONIC,ASMFORMAT,DEP,PIPE) \
-	{ MACFORMAT, OPCODE, MNEMONIC, ASMFORMAT },
-#include "spu-insns.h"
-#undef APUOP
-#undef APUOPFB
-};
-
-const int spu_num_opcodes = ARRAY_SIZE(spu_opcodes);

arch/powerpc/xmon/spu.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/* SPU ELF support for BFD.
-
-   Copyright 2006 Free Software Foundation, Inc.
-
-   This file is part of GDB, GAS, and the GNU binutils.
-
- */
-
-
-/* These two enums are from rel_apu/common/spu_asm_format.h */
-/* definition of instruction format */
-typedef enum {
-  RRR,
-  RI18,
-  RI16,
-  RI10,
-  RI8,
-  RI7,
-  RR,
-  LBT,
-  LBTI,
-  IDATA,
-  UNKNOWN_IFORMAT
-} spu_iformat;
-
-/* These values describe assembly instruction arguments.  They indicate
- * how to encode, range checking and which relocation to use. */
-typedef enum {
-  A_T,  /* register at pos 0 */
-  A_A,  /* register at pos 7 */
-  A_B,  /* register at pos 14 */
-  A_C,  /* register at pos 21 */
-  A_S,  /* special purpose register at pos 7 */
-  A_H,  /* channel register at pos 7 */
-  A_P,  /* parenthesis, this has to separate regs from immediates */
-  A_S3,
-  A_S6,
-  A_S7N,
-  A_S7,
-  A_U7A,
-  A_U7B,
-  A_S10B,
-  A_S10,
-  A_S11,
-  A_S11I,
-  A_S14,
-  A_S16,
-  A_S18,
-  A_R18,
-  A_U3,
-  A_U5,
-  A_U6,
-  A_U7,
-  A_U14,
-  A_X16,
-  A_U18,
-  A_MAX
-} spu_aformat;
-
-enum spu_insns {
-#define APUOP(TAG,MACFORMAT,OPCODE,MNEMONIC,ASMFORMAT,DEP,PIPE) \
-	TAG,
-#define APUOPFB(TAG,MACFORMAT,OPCODE,FB,MNEMONIC,ASMFORMAT,DEP,PIPE) \
-	TAG,
-#include "spu-insns.h"
-#undef APUOP
-#undef APUOPFB
-        M_SPU_MAX
-};
-
-struct spu_opcode
-{
-   spu_iformat insn_type;
-   unsigned int opcode;
-   char *mnemonic;
-   int arg[5];
-};
-
-#define SIGNED_EXTRACT(insn,size,pos) (((int)((insn) << (32-size-pos))) >> (32-size))
-#define UNSIGNED_EXTRACT(insn,size,pos) (((insn) >> pos) & ((1 << size)-1))
-
-#define DECODE_INSN_RT(insn) (insn & 0x7f)
-#define DECODE_INSN_RA(insn) ((insn >> 7) & 0x7f)
-#define DECODE_INSN_RB(insn) ((insn >> 14) & 0x7f)
-#define DECODE_INSN_RC(insn) ((insn >> 21) & 0x7f)
-
-#define DECODE_INSN_I10(insn) SIGNED_EXTRACT(insn,10,14)
-#define DECODE_INSN_U10(insn) UNSIGNED_EXTRACT(insn,10,14)
-
-/* For branching, immediate loads, hbr and  lqa/stqa. */
-#define DECODE_INSN_I16(insn) SIGNED_EXTRACT(insn,16,7)
-#define DECODE_INSN_U16(insn) UNSIGNED_EXTRACT(insn,16,7)
-
-/* for stop */
-#define DECODE_INSN_U14(insn) UNSIGNED_EXTRACT(insn,14,0)
-
-/* For ila */
-#define DECODE_INSN_I18(insn) SIGNED_EXTRACT(insn,18,7)
-#define DECODE_INSN_U18(insn) UNSIGNED_EXTRACT(insn,18,7)
-
-/* For rotate and shift and generate control mask */
-#define DECODE_INSN_I7(insn) SIGNED_EXTRACT(insn,7,14)
-#define DECODE_INSN_U7(insn) UNSIGNED_EXTRACT(insn,7,14)
-
-/* For float <-> int conversion */
-#define DECODE_INSN_I8(insn)  SIGNED_EXTRACT(insn,8,14)
-#define DECODE_INSN_U8(insn) UNSIGNED_EXTRACT(insn,8,14)
-
-/* For hbr  */
-#define DECODE_INSN_I9a(insn) ((SIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
-#define DECODE_INSN_I9b(insn) ((SIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
-#define DECODE_INSN_U9a(insn) ((UNSIGNED_EXTRACT(insn,2,23) << 7) | UNSIGNED_EXTRACT(insn,7,0))
-#define DECODE_INSN_U9b(insn) ((UNSIGNED_EXTRACT(insn,2,14) << 7) | UNSIGNED_EXTRACT(insn,7,0))
-

arch/powerpc/xmon/xmon.c

···
 #include <asm/rtas.h>
 #include <asm/sstep.h>
 #include <asm/irq_regs.h>
-#include <asm/spu.h>
-#include <asm/spu_priv1.h>
 #include <asm/setjmp.h>
 #include <asm/reg.h>
 #include <asm/debug.h>
···
 			      const char *after);
 static const char *getvecname(unsigned long vec);
 
-static int do_spu_cmd(void);
-
 #ifdef CONFIG_44x
 static void dump_tlb_44x(void);
 #endif
···
   P 	list processes/tasks\n\
   r	print registers\n\
   s	single step\n"
-#ifdef CONFIG_SPU_BASE
-"  ss	stop execution on all spus\n\
-  sr	restore execution on stopped spus\n\
-  sf  #	dump spu fields for spu # (in hex)\n\
-  sd  #	dump spu local store for spu # (in hex)\n\
-  sdi #	disassemble spu local store for spu # (in hex)\n"
-#endif
 "  S	print special registers\n\
   Sa    print all SPRs\n\
   Sr #	read SPR #\n\
···
 			cacheflush();
 			break;
 		case 's':
-			if (do_spu_cmd() == 0)
-				break;
 			if (do_step(excp))
 				return cmd;
 			break;
···
 	if (xmon_early)
 		debugger(NULL);
 }
-
-#ifdef CONFIG_SPU_BASE
-
-struct spu_info {
-	struct spu *spu;
-	u64 saved_mfc_sr1_RW;
-	u32 saved_spu_runcntl_RW;
-	unsigned long dump_addr;
-	u8 stopped_ok;
-};
-
-#define XMON_NUM_SPUS	16	/* Enough for current hardware */
-
-static struct spu_info spu_info[XMON_NUM_SPUS];
-
-void __init xmon_register_spus(struct list_head *list)
-{
-	struct spu *spu;
-
-	list_for_each_entry(spu, list, full_list) {
-		if (spu->number >= XMON_NUM_SPUS) {
-			WARN_ON(1);
-			continue;
-		}
-
-		spu_info[spu->number].spu = spu;
-		spu_info[spu->number].stopped_ok = 0;
-		spu_info[spu->number].dump_addr = (unsigned long)
-				spu_info[spu->number].spu->local_store;
-	}
-}
-
-static void stop_spus(void)
-{
-	struct spu *spu;
-	volatile int i;
-	u64 tmp;
-
-	for (i = 0; i < XMON_NUM_SPUS; i++) {
-		if (!spu_info[i].spu)
-			continue;
-
-		if (setjmp(bus_error_jmp) == 0) {
-			catch_memory_errors = 1;
-			sync();
-
-			spu = spu_info[i].spu;
-
-			spu_info[i].saved_spu_runcntl_RW =
-				in_be32(&spu->problem->spu_runcntl_RW);
-
-			tmp = spu_mfc_sr1_get(spu);
-			spu_info[i].saved_mfc_sr1_RW = tmp;
-
-			tmp &= ~MFC_STATE1_MASTER_RUN_CONTROL_MASK;
-			spu_mfc_sr1_set(spu, tmp);
-
-			sync();
-			__delay(200);
-
-			spu_info[i].stopped_ok = 1;
-
-			printf("Stopped spu %.2d (was %s)\n", i,
-					spu_info[i].saved_spu_runcntl_RW ?
-					"running" : "stopped");
-		} else {
-			catch_memory_errors = 0;
-			printf("*** Error stopping spu %.2d\n", i);
-		}
-		catch_memory_errors = 0;
-	}
-}
-
-static void restart_spus(void)
-{
-	struct spu *spu;
-	volatile int i;
-
-	for (i = 0; i < XMON_NUM_SPUS; i++) {
-		if (!spu_info[i].spu)
-			continue;
-
-		if (!spu_info[i].stopped_ok) {
-			printf("*** Error, spu %d was not successfully stopped"
-					", not restarting\n", i);
-			continue;
-		}
-
-		if (setjmp(bus_error_jmp) == 0) {
-			catch_memory_errors = 1;
-			sync();
-
-			spu = spu_info[i].spu;
-			spu_mfc_sr1_set(spu, spu_info[i].saved_mfc_sr1_RW);
-			out_be32(&spu->problem->spu_runcntl_RW,
-					spu_info[i].saved_spu_runcntl_RW);
-
-			sync();
-			__delay(200);
-
-			printf("Restarted spu %.2d\n", i);
-		} else {
-			catch_memory_errors = 0;
-			printf("*** Error restarting spu %.2d\n", i);
-		}
-		catch_memory_errors = 0;
-	}
-}
-
-#define DUMP_WIDTH	23
-#define DUMP_VALUE(format, field, value)				\
-do {									\
-	if (setjmp(bus_error_jmp) == 0) {				\
-		catch_memory_errors = 1;				\
-		sync();							\
-		printf("  %-*s = "format"\n", DUMP_WIDTH,		\
-				#field, value);				\
-		sync();							\
-		__delay(200);						\
-	} else {							\
-		catch_memory_errors = 0;				\
-		printf("  %-*s = *** Error reading field.\n",		\
-					DUMP_WIDTH, #field);		\
-	}								\
-	catch_memory_errors = 0;					\
-} while (0)
-
-#define DUMP_FIELD(obj, format, field)	\
-	DUMP_VALUE(format, field, obj->field)
-
-static void dump_spu_fields(struct spu *spu)
-{
-	printf("Dumping spu fields at address %p:\n", spu);
-
-	DUMP_FIELD(spu, "0x%x", number);
-	DUMP_FIELD(spu, "%s", name);
-	DUMP_FIELD(spu, "0x%lx", local_store_phys);
-	DUMP_FIELD(spu, "0x%p", local_store);
-	DUMP_FIELD(spu, "0x%lx", ls_size);
-	DUMP_FIELD(spu, "0x%x", node);
-	DUMP_FIELD(spu, "0x%lx", flags);
-	DUMP_FIELD(spu, "%llu", class_0_pending);
-	DUMP_FIELD(spu, "0x%llx", class_0_dar);
-	DUMP_FIELD(spu, "0x%llx", class_1_dar);
-	DUMP_FIELD(spu, "0x%llx", class_1_dsisr);
-	DUMP_FIELD(spu, "0x%x", irqs[0]);
-	DUMP_FIELD(spu, "0x%x", irqs[1]);
-	DUMP_FIELD(spu, "0x%x", irqs[2]);
-	DUMP_FIELD(spu, "0x%x", slb_replace);
-	DUMP_FIELD(spu, "%d", pid);
-	DUMP_FIELD(spu, "0x%p", mm);
-	DUMP_FIELD(spu, "0x%p", ctx);
-	DUMP_FIELD(spu, "0x%p", rq);
-	DUMP_FIELD(spu, "0x%llx", timestamp);
-	DUMP_FIELD(spu, "0x%lx", problem_phys);
-	DUMP_FIELD(spu, "0x%p", problem);
-	DUMP_VALUE("0x%x", problem->spu_runcntl_RW,
-			in_be32(&spu->problem->spu_runcntl_RW));
-	DUMP_VALUE("0x%x", problem->spu_status_R,
-			in_be32(&spu->problem->spu_status_R));
-	DUMP_VALUE("0x%x", problem->spu_npc_RW,
-			in_be32(&spu->problem->spu_npc_RW));
-	DUMP_FIELD(spu, "0x%p", priv2);
-	DUMP_FIELD(spu, "0x%p", pdata);
-}
-
-static int spu_inst_dump(unsigned long adr, long count, int praddr)
-{
-	return generic_inst_dump(adr, count, praddr, print_insn_spu);
-}
-
-static void dump_spu_ls(unsigned long num, int subcmd)
-{
-	unsigned long offset, addr, ls_addr;
-
-	if (setjmp(bus_error_jmp) == 0) {
-		catch_memory_errors = 1;
-		sync();
-		ls_addr = (unsigned long)spu_info[num].spu->local_store;
-		sync();
-		__delay(200);
-	} else {
-		catch_memory_errors = 0;
-		printf("*** Error: accessing spu info for spu %ld\n", num);
-		return;
-	}
-	catch_memory_errors = 0;
-
-	if (scanhex(&offset))
-		addr = ls_addr + offset;
-	else
-		addr = spu_info[num].dump_addr;
-
-	if (addr >= ls_addr + LS_SIZE) {
-		printf("*** Error: address outside of local store\n");
-		return;
-	}
-
-	switch (subcmd) {
-	case 'i':
-		addr += spu_inst_dump(addr, 16, 1);
-		last_cmd = "sdi\n";
-		break;
-	default:
-		prdump(addr, 64);
-		addr += 64;
-		last_cmd = "sd\n";
-		break;
-	}
-
-	spu_info[num].dump_addr = addr;
-}
-
-static int do_spu_cmd(void)
-{
-	static unsigned long num = 0;
-	int cmd, subcmd = 0;
-
-	cmd = inchar();
-	switch (cmd) {
-	case 's':
-		stop_spus();
-		break;
-	case 'r':
-		restart_spus();
-		break;
-	case 'd':
-		subcmd = inchar();
-		if (isxdigit(subcmd) || subcmd == '\n')
-			termch = subcmd;
-		fallthrough;
-	case 'f':
-		scanhex(&num);
-		if (num >= XMON_NUM_SPUS || !spu_info[num].spu) {
-			printf("*** Error: invalid spu number\n");
-			return 0;
-		}
-
-		switch (cmd) {
-		case 'f':
-			dump_spu_fields(spu_info[num].spu);
-			break;
-		default:
-			dump_spu_ls(num, subcmd);
-			break;
-		}
-
-		break;
-	default:
-		return -1;
-	}
-
-	return 0;
-}
-#else /* ! CONFIG_SPU_BASE */
-static int do_spu_cmd(void)
-{
-	return -1;
-}
-#endif

arch/x86/kernel/static_call.c

···
 {
 	mutex_lock(&text_mutex);
 
-	if (tramp) {
+	if (tramp && !site) {
 		__static_call_validate(tramp, true, true);
 		__static_call_transform(tramp, __sc_insn(!func, true), func, false);
 	}

drivers/cpufreq/Kconfig.powerpc

···
 # SPDX-License-Identifier: GPL-2.0-only
-config CPU_FREQ_CBE
-	tristate "CBE frequency scaling"
-	depends on CBE_RAS && PPC_CELL
-	default m
-	help
-	  This adds the cpufreq driver for Cell BE processors.
-	  For details, take a look at <file:Documentation/cpu-freq/>.
-	  If you don't have such processor, say N
-
-config CPU_FREQ_CBE_PMI
-	bool "CBE frequency scaling using PMI interface"
-	depends on CPU_FREQ_CBE
-	default n
-	help
-	  Select this, if you want to use the PMI interface to switch
-	  frequencies. Using PMI, the processor will not only be able to run at
-	  lower speed, but also at lower core voltage.
-
 config CPU_FREQ_PMAC
 	bool "Support for Apple PowerBooks"
 	depends on ADB_PMU && PPC32

drivers/cpufreq/Makefile

···
 
 ##################################################################################
 # PowerPC platform drivers
-obj-$(CONFIG_CPU_FREQ_CBE)		+= ppc-cbe-cpufreq.o
-ppc-cbe-cpufreq-y			+= ppc_cbe_cpufreq_pervasive.o ppc_cbe_cpufreq.o
-obj-$(CONFIG_CPU_FREQ_CBE_PMI)		+= ppc_cbe_cpufreq_pmi.o
 obj-$(CONFIG_QORIQ_CPUFREQ)   		+= qoriq-cpufreq.o
 obj-$(CONFIG_CPU_FREQ_PMAC)		+= pmac32-cpufreq.o
 obj-$(CONFIG_CPU_FREQ_PMAC64)		+= pmac64-cpufreq.o

drivers/cpufreq/ppc_cbe_cpufreq.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * cpufreq driver for the cell processor
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#include <linux/cpufreq.h>
-#include <linux/module.h>
-#include <linux/of.h>
-
-#include <asm/machdep.h>
-#include <asm/cell-regs.h>
-
-#include "ppc_cbe_cpufreq.h"
-
-/* the CBE supports an 8 step frequency scaling */
-static struct cpufreq_frequency_table cbe_freqs[] = {
-	{0, 1,	0},
-	{0, 2,	0},
-	{0, 3,	0},
-	{0, 4,	0},
-	{0, 5,	0},
-	{0, 6,	0},
-	{0, 8,	0},
-	{0, 10,	0},
-	{0, 0,	CPUFREQ_TABLE_END},
-};
-
-/*
- * hardware specific functions
- */
-
-static int set_pmode(unsigned int cpu, unsigned int slow_mode)
-{
-	int rc;
-
-	if (cbe_cpufreq_has_pmi)
-		rc = cbe_cpufreq_set_pmode_pmi(cpu, slow_mode);
-	else
-		rc = cbe_cpufreq_set_pmode(cpu, slow_mode);
-
-	pr_debug("register contains slow mode %d\n", cbe_cpufreq_get_pmode(cpu));
-
-	return rc;
-}
-
-/*
- * cpufreq functions
- */
-
-static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
-{
-	struct cpufreq_frequency_table *pos;
-	const u32 *max_freqp;
-	u32 max_freq;
-	int cur_pmode;
-	struct device_node *cpu;
-
-	cpu = of_get_cpu_node(policy->cpu, NULL);
-
-	if (!cpu)
-		return -ENODEV;
-
-	pr_debug("init cpufreq on CPU %d\n", policy->cpu);
-
-	/*
-	 * Let's check we can actually get to the CELL regs
-	 */
-	if (!cbe_get_cpu_pmd_regs(policy->cpu) ||
-	    !cbe_get_cpu_mic_tm_regs(policy->cpu)) {
-		pr_info("invalid CBE regs pointers for cpufreq\n");
-		of_node_put(cpu);
-		return -EINVAL;
-	}
-
-	max_freqp = of_get_property(cpu, "clock-frequency", NULL);
-
-	of_node_put(cpu);
-
-	if (!max_freqp)
-		return -EINVAL;
-
-	/* we need the freq in kHz */
-	max_freq = *max_freqp / 1000;
-
-	pr_debug("max clock-frequency is at %u kHz\n", max_freq);
-	pr_debug("initializing frequency table\n");
-
-	/* initialize frequency table */
-	cpufreq_for_each_entry(pos, cbe_freqs) {
-		pos->frequency = max_freq / pos->driver_data;
-		pr_debug("%d: %d\n", (int)(pos - cbe_freqs), pos->frequency);
-	}
-
-	/* if DEBUG is enabled set_pmode() measures the latency
-	 * of a transition */
-	policy->cpuinfo.transition_latency = 25000;
-
-	cur_pmode = cbe_cpufreq_get_pmode(policy->cpu);
-	pr_debug("current pmode is at %d\n",cur_pmode);
-
-	policy->cur = cbe_freqs[cur_pmode].frequency;
-
-#ifdef CONFIG_SMP
-	cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu));
-#endif
-
-	policy->freq_table = cbe_freqs;
-	cbe_cpufreq_pmi_policy_init(policy);
-	return 0;
-}
-
-static void cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cbe_cpufreq_pmi_policy_exit(policy);
-}
-
-static int cbe_cpufreq_target(struct cpufreq_policy *policy,
-			      unsigned int cbe_pmode_new)
-{
-	pr_debug("setting frequency for cpu %d to %d kHz, " \
-		 "1/%d of max frequency\n",
-		 policy->cpu,
-		 cbe_freqs[cbe_pmode_new].frequency,
-		 cbe_freqs[cbe_pmode_new].driver_data);
-
-	return set_pmode(policy->cpu, cbe_pmode_new);
-}
-
-static struct cpufreq_driver cbe_cpufreq_driver = {
-	.verify		= cpufreq_generic_frequency_table_verify,
-	.target_index	= cbe_cpufreq_target,
-	.init		= cbe_cpufreq_cpu_init,
-	.exit		= cbe_cpufreq_cpu_exit,
-	.name		= "cbe-cpufreq",
-	.flags		= CPUFREQ_CONST_LOOPS,
-};
-
-/*
- * module init and destoy
- */
-
-static int __init cbe_cpufreq_init(void)
-{
-	int ret;
-
-	if (!machine_is(cell))
-		return -ENODEV;
-
-	cbe_cpufreq_pmi_init();
-
-	ret = cpufreq_register_driver(&cbe_cpufreq_driver);
-	if (ret)
-		cbe_cpufreq_pmi_exit();
-
-	return ret;
-}
-
-static void __exit cbe_cpufreq_exit(void)
-{
-	cpufreq_unregister_driver(&cbe_cpufreq_driver);
-	cbe_cpufreq_pmi_exit();
-}
-
-module_init(cbe_cpufreq_init);
-module_exit(cbe_cpufreq_exit);
-
-MODULE_DESCRIPTION("cpufreq driver for Cell BE processors");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Christian Krafft <[e-mail]>");

drivers/cpufreq/ppc_cbe_cpufreq.h

···
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * ppc_cbe_cpufreq.h
- *
- * This file contains the definitions used by the cbe_cpufreq driver.
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007
- *
- * Author: Christian Krafft <[e-mail]>
- *
- */
-
-#include <linux/cpufreq.h>
-#include <linux/types.h>
-
-int cbe_cpufreq_set_pmode(int cpu, unsigned int pmode);
-int cbe_cpufreq_get_pmode(int cpu);
-
-int cbe_cpufreq_set_pmode_pmi(int cpu, unsigned int pmode);
-
-#if IS_ENABLED(CONFIG_CPU_FREQ_CBE_PMI)
-extern bool cbe_cpufreq_has_pmi;
-void cbe_cpufreq_pmi_policy_init(struct cpufreq_policy *policy);
-void cbe_cpufreq_pmi_policy_exit(struct cpufreq_policy *policy);
-void cbe_cpufreq_pmi_init(void);
-void cbe_cpufreq_pmi_exit(void);
-#else
-#define cbe_cpufreq_has_pmi (0)
-static inline void cbe_cpufreq_pmi_policy_init(struct cpufreq_policy *policy) {}
-static inline void cbe_cpufreq_pmi_policy_exit(struct cpufreq_policy *policy) {}
-static inline void cbe_cpufreq_pmi_init(void) {}
-static inline void cbe_cpufreq_pmi_exit(void) {}
-#endif

drivers/cpufreq/ppc_cbe_cpufreq_pervasive.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * pervasive backend for the cbe_cpufreq driver
- *
- * This driver makes use of the pervasive unit to
- * engage the desired frequency.
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <asm/machdep.h>
-#include <asm/hw_irq.h>
-#include <asm/cell-regs.h>
-
-#include "ppc_cbe_cpufreq.h"
-
-/* to write to MIC register */
-static u64 MIC_Slow_Fast_Timer_table[] = {
-	[0 ... 7] = 0x007fc00000000000ull,
-};
-
-/* more values for the MIC */
-static u64 MIC_Slow_Next_Timer_table[] = {
-	0x0000240000000000ull,
-	0x0000268000000000ull,
-	0x000029C000000000ull,
-	0x00002D0000000000ull,
-	0x0000300000000000ull,
-	0x0000334000000000ull,
-	0x000039C000000000ull,
-	0x00003FC000000000ull,
-};
-
-
-int cbe_cpufreq_set_pmode(int cpu, unsigned int pmode)
-{
-	struct cbe_pmd_regs __iomem *pmd_regs;
-	struct cbe_mic_tm_regs __iomem *mic_tm_regs;
-	unsigned long flags;
-	u64 value;
-#ifdef DEBUG
-	long time;
-#endif
-
-	local_irq_save(flags);
-
-	mic_tm_regs = cbe_get_cpu_mic_tm_regs(cpu);
-	pmd_regs = cbe_get_cpu_pmd_regs(cpu);
-
-#ifdef DEBUG
-	time = jiffies;
-#endif
-
-	out_be64(&mic_tm_regs->slow_fast_timer_0, MIC_Slow_Fast_Timer_table[pmode]);
-	out_be64(&mic_tm_regs->slow_fast_timer_1, MIC_Slow_Fast_Timer_table[pmode]);
-
-	out_be64(&mic_tm_regs->slow_next_timer_0, MIC_Slow_Next_Timer_table[pmode]);
-	out_be64(&mic_tm_regs->slow_next_timer_1, MIC_Slow_Next_Timer_table[pmode]);
-
-	value = in_be64(&pmd_regs->pmcr);
-	/* set bits to zero */
-	value &= 0xFFFFFFFFFFFFFFF8ull;
-	/* set bits to next pmode */
-	value |= pmode;
-
-	out_be64(&pmd_regs->pmcr, value);
-
-#ifdef DEBUG
-	/* wait until new pmode appears in status register */
-	value = in_be64(&pmd_regs->pmsr) & 0x07;
-	while (value != pmode) {
-		cpu_relax();
-		value = in_be64(&pmd_regs->pmsr) & 0x07;
-	}
-
-	time = jiffies  - time;
-	time = jiffies_to_msecs(time);
-	pr_debug("had to wait %lu ms for a transition using " \
-		 "pervasive unit\n", time);
-#endif
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-
-int cbe_cpufreq_get_pmode(int cpu)
-{
-	int ret;
-	struct cbe_pmd_regs __iomem *pmd_regs;
-
-	pmd_regs = cbe_get_cpu_pmd_regs(cpu);
-	ret = in_be64(&pmd_regs->pmsr) & 0x07;
-
-	return ret;
-}
-

drivers/cpufreq/ppc_cbe_cpufreq_pmi.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * pmi backend for the cbe_cpufreq driver
- *
- * (C) Copyright IBM Deutschland Entwicklung GmbH 2005-2007
- *
- * Author: Christian Krafft <[e-mail]>
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/timer.h>
-#include <linux/init.h>
-#include <linux/pm_qos.h>
-#include <linux/slab.h>
-
-#include <asm/processor.h>
-#include <asm/pmi.h>
-#include <asm/cell-regs.h>
-
-#ifdef DEBUG
-#include <asm/time.h>
-#endif
-
-#include "ppc_cbe_cpufreq.h"
-
-bool cbe_cpufreq_has_pmi = false;
-EXPORT_SYMBOL_GPL(cbe_cpufreq_has_pmi);
-
-/*
- * hardware specific functions
- */
-
-int cbe_cpufreq_set_pmode_pmi(int cpu, unsigned int pmode)
-{
-	int ret;
-	pmi_message_t pmi_msg;
-#ifdef DEBUG
-	long time;
-#endif
-	pmi_msg.type = PMI_TYPE_FREQ_CHANGE;
-	pmi_msg.data1 =	cbe_cpu_to_node(cpu);
-	pmi_msg.data2 = pmode;
-
-#ifdef DEBUG
-	time = jiffies;
-#endif
-	pmi_send_message(pmi_msg);
-
-#ifdef DEBUG
-	time = jiffies  - time;
-	time = jiffies_to_msecs(time);
-	pr_debug("had to wait %lu ms for a transition using " \
-		 "PMI\n", time);
-#endif
-	ret = pmi_msg.data2;
-	pr_debug("PMI returned slow mode %d\n", ret);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(cbe_cpufreq_set_pmode_pmi);
-
-
-static void cbe_cpufreq_handle_pmi(pmi_message_t pmi_msg)
-{
-	struct cpufreq_policy *policy;
-	struct freq_qos_request *req;
-	u8 node, slow_mode;
-	int cpu, ret;
-
-	BUG_ON(pmi_msg.type != PMI_TYPE_FREQ_CHANGE);
-
-	node = pmi_msg.data1;
-	slow_mode = pmi_msg.data2;
-
-	cpu = cbe_node_to_cpu(node);
-
-	pr_debug("cbe_handle_pmi: node: %d max_freq: %d\n", node, slow_mode);
-
-	policy = cpufreq_cpu_get(cpu);
-	if (!policy) {
-		pr_warn("cpufreq policy not found cpu%d\n", cpu);
-		return;
-	}
-
-	req = policy->driver_data;
-
-	ret = freq_qos_update_request(req,
-			policy->freq_table[slow_mode].frequency);
-	if (ret < 0)
-		pr_warn("Failed to update freq constraint: %d\n", ret);
-	else
-		pr_debug("limiting node %d to slow mode %d\n", node, slow_mode);
-
-	cpufreq_cpu_put(policy);
-}
-
-static struct pmi_handler cbe_pmi_handler = {
-	.type			= PMI_TYPE_FREQ_CHANGE,
-	.handle_pmi_message	= cbe_cpufreq_handle_pmi,
-};
-
-void cbe_cpufreq_pmi_policy_init(struct cpufreq_policy *policy)
-{
-	struct freq_qos_request *req;
-	int ret;
-
-	if (!cbe_cpufreq_has_pmi)
-		return;
-
-	req = kzalloc(sizeof(*req), GFP_KERNEL);
-	if (!req)
-		return;
-
-	ret = freq_qos_add_request(&policy->constraints, req, FREQ_QOS_MAX,
-				   policy->freq_table[0].frequency);
-	if (ret < 0) {
-		pr_err("Failed to add freq constraint (%d)\n", ret);
-		kfree(req);
-		return;
-	}
-
-	policy->driver_data = req;
-}
-EXPORT_SYMBOL_GPL(cbe_cpufreq_pmi_policy_init);
-
-void cbe_cpufreq_pmi_policy_exit(struct cpufreq_policy *policy)
-{
-	struct freq_qos_request *req = policy->driver_data;
-
-	if (cbe_cpufreq_has_pmi) {
-		freq_qos_remove_request(req);
-		kfree(req);
-	}
-}
-EXPORT_SYMBOL_GPL(cbe_cpufreq_pmi_policy_exit);
-
-void cbe_cpufreq_pmi_init(void)
-{
-	if (!pmi_register_handler(&cbe_pmi_handler))
-		cbe_cpufreq_has_pmi = true;
-}
-EXPORT_SYMBOL_GPL(cbe_cpufreq_pmi_init);
-
-void cbe_cpufreq_pmi_exit(void)
-{
-	pmi_unregister_handler(&cbe_pmi_handler);
-	cbe_cpufreq_has_pmi = false;
-}
-EXPORT_SYMBOL_GPL(cbe_cpufreq_pmi_exit);

drivers/net/ethernet/toshiba/Kconfig

···
 config NET_VENDOR_TOSHIBA
 	bool "Toshiba devices"
 	default y
-	depends on PCI && (PPC_IBM_CELL_BLADE || MIPS) || PPC_PS3
+	depends on PCI && MIPS || PPC_PS3
 	help
 	  If you have a network (Ethernet) card belonging to this class, say Y.
 
···
 	  use wireless feature, disabling this option saves memory.  As
 	  the driver automatically distinguishes the models, you can
 	  safely enable this option even if you have a wireless-less model.
-
-config SPIDER_NET
-	tristate "Spider Gigabit Ethernet driver"
-	depends on PCI && PPC_IBM_CELL_BLADE
-	select FW_LOADER
-	select SUNGEM_PHY
-	help
-	  This driver supports the Gigabit Ethernet chips present on the
-	  Cell Processor-Based Blades from IBM.
 
 config TC35815
 	tristate "TOSHIBA TC35815 Ethernet support"

drivers/net/ethernet/toshiba/Makefile

···
 obj-$(CONFIG_GELIC_NET) += ps3_gelic.o
 gelic_wireless-$(CONFIG_GELIC_WIRELESS) += ps3_gelic_wireless.o
 ps3_gelic-objs += ps3_gelic_net.o $(gelic_wireless-y)
-spidernet-y += spider_net.o spider_net_ethtool.o
-obj-$(CONFIG_SPIDER_NET) += spidernet.o
 obj-$(CONFIG_TC35815) += tc35815.o

drivers/net/ethernet/toshiba/spider_net.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Network device driver for Cell Processor-Based Blade and Celleb platform
- *
- * (C) Copyright IBM Corp. 2005
- * (C) Copyright 2006 TOSHIBA CORPORATION
- *
- * Authors : Utz Bacher <[e-mail]>
- *           Jens Osterkamp <[e-mail]>
- */
-
-#include <linux/compiler.h>
-#include <linux/crc32.h>
-#include <linux/delay.h>
-#include <linux/etherdevice.h>
-#include <linux/ethtool.h>
-#include <linux/firmware.h>
-#include <linux/if_vlan.h>
-#include <linux/in.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/gfp.h>
-#include <linux/ioport.h>
-#include <linux/ip.h>
-#include <linux/kernel.h>
-#include <linux/mii.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/device.h>
-#include <linux/pci.h>
-#include <linux/skbuff.h>
-#include <linux/tcp.h>
-#include <linux/types.h>
-#include <linux/vmalloc.h>
-#include <linux/wait.h>
-#include <linux/workqueue.h>
-#include <linux/bitops.h>
-#include <linux/of.h>
-#include <net/checksum.h>
-
-#include "spider_net.h"
-
-MODULE_AUTHOR("Utz Bacher <[e-mail]> and Jens Osterkamp " \
-	      "<[e-mail]>");
-MODULE_DESCRIPTION("Spider Southbridge Gigabit Ethernet driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(VERSION);
-MODULE_FIRMWARE(SPIDER_NET_FIRMWARE_NAME);
-
-static int rx_descriptors = SPIDER_NET_RX_DESCRIPTORS_DEFAULT;
-static int tx_descriptors = SPIDER_NET_TX_DESCRIPTORS_DEFAULT;
-
-module_param(rx_descriptors, int, 0444);
-module_param(tx_descriptors, int, 0444);
-
-MODULE_PARM_DESC(rx_descriptors, "number of descriptors used " \
-		 "in rx chains");
-MODULE_PARM_DESC(tx_descriptors, "number of descriptors used " \
-		 "in tx chain");
-
-char spider_net_driver_name[] = "spidernet";
-
-static const struct pci_device_id spider_net_pci_tbl[] = {
-	{ PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SPIDER_NET,
-	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
-	{ 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, spider_net_pci_tbl);
-
-/**
- * spider_net_read_reg - reads an SMMIO register of a card
- * @card: device structure
- * @reg: register to read from
- *
- * returns the content of the specified SMMIO register.
- */
-static inline u32
-spider_net_read_reg(struct spider_net_card *card, u32 reg)
-{
-	/* We use the powerpc specific variants instead of readl_be() because
-	 * we know spidernet is not a real PCI device and we can thus avoid the
-	 * performance hit caused by the PCI workarounds.
-	 */
-	return in_be32(card->regs + reg);
-}
-
-/**
- * spider_net_write_reg - writes to an SMMIO register of a card
- * @card: device structure
- * @reg: register to write to
- * @value: value to write into the specified SMMIO register
- */
-static inline void
-spider_net_write_reg(struct spider_net_card *card, u32 reg, u32 value)
-{
-	/* We use the powerpc specific variants instead of writel_be() because
-	 * we know spidernet is not a real PCI device and we can thus avoid the
-	 * performance hit caused by the PCI workarounds.
-	 */
-	out_be32(card->regs + reg, value);
-}
-
-/**
- * spider_net_write_phy - write to phy register
- * @netdev: adapter to be written to
- * @mii_id: id of MII
- * @reg: PHY register
- * @val: value to be written to phy register
- *
- * spider_net_write_phy_register writes to an arbitrary PHY
- * register via the spider GPCWOPCMD register. We assume the queue does
- * not run full (not more than 15 commands outstanding).
- **/
-static void
-spider_net_write_phy(struct net_device *netdev, int mii_id,
-		     int reg, int val)
-{
-	struct spider_net_card *card = netdev_priv(netdev);
-	u32 writevalue;
-
-	writevalue = ((u32)mii_id << 21) |
-		((u32)reg << 16) | ((u32)val);
-
-	spider_net_write_reg(card, SPIDER_NET_GPCWOPCMD, writevalue);
-}
-
-/**
- * spider_net_read_phy - read from phy register
- * @netdev: network device to be read from
- * @mii_id: id of MII
- * @reg: PHY register
- *
- * Returns value read from PHY register
- *
- * spider_net_write_phy reads from an arbitrary PHY
- * register via the spider GPCROPCMD register
- **/
-static int
-spider_net_read_phy(struct net_device *netdev, int mii_id, int reg)
-{
-	struct spider_net_card *card = netdev_priv(netdev);
-	u32 readvalue;
-
-	readvalue = ((u32)mii_id << 21) | ((u32)reg << 16);
-	spider_net_write_reg(card, SPIDER_NET_GPCROPCMD, readvalue);
-
-	/* we don't use semaphores to wait for an SPIDER_NET_GPROPCMPINT
-	 * interrupt, as we poll for the completion of the read operation
-	 * in spider_net_read_phy. Should take about 50 us
-	 */
-	do {
-		readvalue = spider_net_read_reg(card, SPIDER_NET_GPCROPCMD);
-	} while (readvalue & SPIDER_NET_GPREXEC);
-
-	readvalue &= SPIDER_NET_GPRDAT_MASK;
-
-	return readvalue;
-}
-
-/**
- * spider_net_setup_aneg - initial auto-negotiation setup
- * @card: device structure
- **/
-static void
-spider_net_setup_aneg(struct spider_net_card *card)
-{
-	struct mii_phy *phy = &card->phy;
-	u32 advertise = 0;
-	u16 bmsr, estat;
-
-	bmsr  = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMSR);
-	estat = spider_net_read_phy(card->netdev, phy->mii_id, MII_ESTATUS);
-
-	if (bmsr & BMSR_10HALF)
-		advertise |= ADVERTISED_10baseT_Half;
-	if (bmsr & BMSR_10FULL)
-		advertise |= ADVERTISED_10baseT_Full;
-	if (bmsr & BMSR_100HALF)
-		advertise |= ADVERTISED_100baseT_Half;
-	if (bmsr & BMSR_100FULL)
-		advertise |= ADVERTISED_100baseT_Full;
-
-	if ((bmsr & BMSR_ESTATEN) && (estat & ESTATUS_1000_TFULL))
-		advertise |= SUPPORTED_1000baseT_Full;
-	if ((bmsr & BMSR_ESTATEN) && (estat & ESTATUS_1000_THALF))
-		advertise |= SUPPORTED_1000baseT_Half;
-
-	sungem_phy_probe(phy, phy->mii_id);
-	phy->def->ops->setup_aneg(phy, advertise);
-
-}
-
-/**
- * spider_net_rx_irq_off - switch off rx irq on this spider card
- * @card: device structure
- *
- * switches off rx irq by masking them out in the GHIINTnMSK register
- */
-static void
-spider_net_rx_irq_off(struct spider_net_card *card)
-{
-	u32 regvalue;
-
-	regvalue = SPIDER_NET_INT0_MASK_VALUE & (~SPIDER_NET_RXINT);
-	spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, regvalue);
-}
-
-/**
- * spider_net_rx_irq_on - switch on rx irq on this spider card
- * @card: device structure
- *
- * switches on rx irq by enabling them in the GHIINTnMSK register
- */
-static void
-spider_net_rx_irq_on(struct spider_net_card *card)
-{
-	u32 regvalue;
-
-	regvalue = SPIDER_NET_INT0_MASK_VALUE | SPIDER_NET_RXINT;
-	spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, regvalue);
-}
-
-/**
- * spider_net_set_promisc - sets the unicast address or the promiscuous mode
- * @card: card structure
- *
- * spider_net_set_promisc sets the unicast destination address filter and
- * thus either allows for non-promisc mode or promisc mode
- */
-static void
-spider_net_set_promisc(struct spider_net_card *card)
-{
-	u32 macu, macl;
-	struct net_device *netdev = card->netdev;
-
-	if (netdev->flags & IFF_PROMISC) {
-		/* clear destination entry 0 */
-		spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR, 0);
-		spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR + 0x04, 0);
-		spider_net_write_reg(card, SPIDER_NET_GMRUA0FIL15R,
-				     SPIDER_NET_PROMISC_VALUE);
-	} else {
-		macu = netdev->dev_addr[0];
-		macu <<= 8;
-		macu |= netdev->dev_addr[1];
-		memcpy(&macl, &netdev->dev_addr[2], sizeof(macl));
-
-		macu |= SPIDER_NET_UA_DESCR_VALUE;
-		spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR, macu);
-		spider_net_write_reg(card, SPIDER_NET_GMRUAFILnR + 0x04, macl);
-		spider_net_write_reg(card, SPIDER_NET_GMRUA0FIL15R,
-				     SPIDER_NET_NONPROMISC_VALUE);
-	}
-}
-
-/**
- * spider_net_get_descr_status -- returns the status of a descriptor
- * @hwdescr: descriptor to look at
- *
- * returns the status as in the dmac_cmd_status field of the descriptor
- */
-static inline int
-spider_net_get_descr_status(struct spider_net_hw_descr *hwdescr)
-{
-	return hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_IND_PROC_MASK;
-}
-
-/**
- * spider_net_free_chain - free descriptor chain
- * @card: card structure
- * @chain: address of chain
- *
- */
-static void
-spider_net_free_chain(struct spider_net_card *card,
-		      struct spider_net_descr_chain *chain)
-{
-	struct spider_net_descr *descr;
-
-	descr = chain->ring;
-	do {
-		descr->bus_addr = 0;
-		descr->hwdescr->next_descr_addr = 0;
-		descr = descr->next;
-	} while (descr != chain->ring);
-
-	dma_free_coherent(&card->pdev->dev, chain->num_desc * sizeof(struct spider_net_hw_descr),
-			  chain->hwring, chain->dma_addr);
-}
-
-/**
- * spider_net_init_chain - alloc and link descriptor chain
- * @card: card structure
- * @chain: address of chain
- *
- * We manage a circular list that mirrors the hardware structure,
- * except that the hardware uses bus addresses.
- *
- * Returns 0 on success, <0 on failure
- */
-static int
-spider_net_init_chain(struct spider_net_card *card,
-		       struct spider_net_descr_chain *chain)
-{
-	int i;
-	struct spider_net_descr *descr;
-	struct spider_net_hw_descr *hwdescr;
-	dma_addr_t buf;
-	size_t alloc_size;
-
-	alloc_size = chain->num_desc * sizeof(struct spider_net_hw_descr);
-
-	chain->hwring = dma_alloc_coherent(&card->pdev->dev, alloc_size,
-					   &chain->dma_addr, GFP_KERNEL);
-	if (!chain->hwring)
-		return -ENOMEM;
-
-	/* Set up the hardware pointers in each descriptor */
-	descr = chain->ring;
-	hwdescr = chain->hwring;
-	buf = chain->dma_addr;
-	for (i=0; i < chain->num_desc; i++, descr++, hwdescr++) {
-		hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
-		hwdescr->next_descr_addr = 0;
-
-		descr->hwdescr = hwdescr;
-		descr->bus_addr = buf;
-		descr->next = descr + 1;
-		descr->prev = descr - 1;
-
-		buf += sizeof(struct spider_net_hw_descr);
-	}
-	/* do actual circular list */
-	(descr-1)->next = chain->ring;
-	chain->ring->prev = descr-1;
-
-	spin_lock_init(&chain->lock);
-	chain->head = chain->ring;
-	chain->tail = chain->ring;
-	return 0;
-}
-
-/**
- * spider_net_free_rx_chain_contents - frees descr contents in rx chain
- * @card: card structure
- *
- * returns 0 on success, <0 on failure
- */
-static void
-spider_net_free_rx_chain_contents(struct spider_net_card *card)
-{
-	struct spider_net_descr *descr;
-
-	descr = card->rx_chain.head;
-	do {
-		if (descr->skb) {
-			dma_unmap_single(&card->pdev->dev,
-					 descr->hwdescr->buf_addr,
-					 SPIDER_NET_MAX_FRAME,
-					 DMA_BIDIRECTIONAL);
-			dev_kfree_skb(descr->skb);
-			descr->skb = NULL;
-		}
-		descr = descr->next;
-	} while (descr != card->rx_chain.head);
-}
-
-/**
- * spider_net_prepare_rx_descr - Reinitialize RX descriptor
- * @card: card structure
- * @descr: descriptor to re-init
- *
- * Return 0 on success, <0 on failure.
- *
- * Allocates a new rx skb, iommu-maps it and attaches it to the
- * descriptor. Mark the descriptor as activated, ready-to-use.
- */
-static int
-spider_net_prepare_rx_descr(struct spider_net_card *card,
-			    struct spider_net_descr *descr)
-{
-	struct spider_net_hw_descr *hwdescr = descr->hwdescr;
-	dma_addr_t buf;
-	int offset;
-	int bufsize;
-
-	/* we need to round up the buffer size to a multiple of 128 */
-	bufsize = (SPIDER_NET_MAX_FRAME + SPIDER_NET_RXBUF_ALIGN - 1) &
-		(~(SPIDER_NET_RXBUF_ALIGN - 1));
-
-	/* and we need to have it 128 byte aligned, therefore we allocate a
-	 * bit more
-	 */
-	/* allocate an skb */
-	descr->skb = netdev_alloc_skb(card->netdev,
-				      bufsize + SPIDER_NET_RXBUF_ALIGN - 1);
-	if (!descr->skb) {
-		if (netif_msg_rx_err(card) && net_ratelimit())
-			dev_err(&card->netdev->dev,
-			        "Not enough memory to allocate rx buffer\n");
-		card->spider_stats.alloc_rx_skb_error++;
-		return -ENOMEM;
-	}
-	hwdescr->buf_size = bufsize;
-	hwdescr->result_size = 0;
-	hwdescr->valid_size = 0;
-	hwdescr->data_status = 0;
-	hwdescr->data_error = 0;
-
-	offset = ((unsigned long)descr->skb->data) &
-		(SPIDER_NET_RXBUF_ALIGN - 1);
-	if (offset)
-		skb_reserve(descr->skb, SPIDER_NET_RXBUF_ALIGN - offset);
-	/* iommu-map the skb */
-	buf = dma_map_single(&card->pdev->dev, descr->skb->data,
-			     SPIDER_NET_MAX_FRAME, DMA_FROM_DEVICE);
-	if (dma_mapping_error(&card->pdev->dev, buf)) {
-		dev_kfree_skb_any(descr->skb);
-		descr->skb = NULL;
-		if (netif_msg_rx_err(card) && net_ratelimit())
-			dev_err(&card->netdev->dev, "Could not iommu-map rx buffer\n");
-		card->spider_stats.rx_iommu_map_error++;
-		hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
-	} else {
-		hwdescr->buf_addr = buf;
-		wmb();
-		hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_CARDOWNED |
-					 SPIDER_NET_DMAC_NOINTR_COMPLETE;
-	}
-
-	return 0;
-}
-
-/**
- * spider_net_enable_rxchtails - sets RX dmac chain tail addresses
- * @card: card structure
- *
- * spider_net_enable_rxchtails sets the RX DMAC chain tail addresses in the
- * chip by writing to the appropriate register. DMA is enabled in
- * spider_net_enable_rxdmac.
- */
-static inline void
-spider_net_enable_rxchtails(struct spider_net_card *card)
-{
-	/* assume chain is aligned correctly */
-	spider_net_write_reg(card, SPIDER_NET_GDADCHA ,
-			     card->rx_chain.tail->bus_addr);
-}
-
-/**
- * spider_net_enable_rxdmac - enables a receive DMA controller
- * @card: card structure
- *
- * spider_net_enable_rxdmac enables the DMA controller by setting RX_DMA_EN
- * in the GDADMACCNTR register
- */
-static inline void
-spider_net_enable_rxdmac(struct spider_net_card *card)
-{
-	wmb();
-	spider_net_write_reg(card, SPIDER_NET_GDADMACCNTR,
-			     SPIDER_NET_DMA_RX_VALUE);
-}
-
-/**
- * spider_net_disable_rxdmac - disables the receive DMA controller
- * @card: card structure
- *
- * spider_net_disable_rxdmac terminates processing on the DMA controller
- * by turing off the DMA controller, with the force-end flag set.
- */
-static inline void
-spider_net_disable_rxdmac(struct spider_net_card *card)
-{
-	spider_net_write_reg(card, SPIDER_NET_GDADMACCNTR,
-			     SPIDER_NET_DMA_RX_FEND_VALUE);
-}
-
-/**
- * spider_net_refill_rx_chain - refills descriptors/skbs in the rx chains
- * @card: card structure
- *
- * refills descriptors in the rx chain: allocates skbs and iommu-maps them.
- */
-static void
-spider_net_refill_rx_chain(struct spider_net_card *card)
-{
-	struct spider_net_descr_chain *chain = &card->rx_chain;
-	unsigned long flags;
-
-	/* one context doing the refill (and a second context seeing that
-	 * and omitting it) is ok. If called by NAPI, we'll be called again
-	 * as spider_net_decode_one_descr is called several times. If some
-	 * interrupt calls us, the NAPI is about to clean up anyway.
-	 */
-	if (!spin_trylock_irqsave(&chain->lock, flags))
-		return;
-
-	while (spider_net_get_descr_status(chain->head->hwdescr) ==
-			SPIDER_NET_DESCR_NOT_IN_USE) {
-		if (spider_net_prepare_rx_descr(card, chain->head))
-			break;
-		chain->head = chain->head->next;
-	}
-
-	spin_unlock_irqrestore(&chain->lock, flags);
-}
-
-/**
- * spider_net_alloc_rx_skbs - Allocates rx skbs in rx descriptor chains
- * @card: card structure
- *
- * Returns 0 on success, <0 on failure.
- */
-static int
-spider_net_alloc_rx_skbs(struct spider_net_card *card)
-{
-	struct spider_net_descr_chain *chain = &card->rx_chain;
-	struct spider_net_descr *start = chain->tail;
-	struct spider_net_descr *descr = start;
-
-	/* Link up the hardware chain pointers */
-	do {
-		descr->prev->hwdescr->next_descr_addr = descr->bus_addr;
-		descr = descr->next;
-	} while (descr != start);
-
-	/* Put at least one buffer into the chain. if this fails,
-	 * we've got a problem. If not, spider_net_refill_rx_chain
-	 * will do the rest at the end of this function.
-	 */
-	if (spider_net_prepare_rx_descr(card, chain->head))
-		goto error;
-	else
-		chain->head = chain->head->next;
-
-	/* This will allocate the rest of the rx buffers;
-	 * if not, it's business as usual later on.
-	 */
-	spider_net_refill_rx_chain(card);
-	spider_net_enable_rxdmac(card);
-	return 0;
-
-error:
-	spider_net_free_rx_chain_contents(card);
-	return -ENOMEM;
-}
-
-/**
- * spider_net_get_multicast_hash - generates hash for multicast filter table
- * @netdev: interface device structure
- * @addr: multicast address
- *
- * returns the hash value.
- *
- * spider_net_get_multicast_hash calculates a hash value for a given multicast
- * address, that is used to set the multicast filter tables
- */
-static u8
-spider_net_get_multicast_hash(struct net_device *netdev, __u8 *addr)
-{
-	u32 crc;
-	u8 hash;
-	char addr_for_crc[ETH_ALEN] = { 0, };
-	int i, bit;
-
-	for (i = 0; i < ETH_ALEN * 8; i++) {
-		bit = (addr[i / 8] >> (i % 8)) & 1;
-		addr_for_crc[ETH_ALEN - 1 - i / 8] += bit << (7 - (i % 8));
-	}
-
-	crc = crc32_be(~0, addr_for_crc, netdev->addr_len);
-
-	hash = (crc >> 27);
-	hash <<= 3;
-	hash |= crc & 7;
-	hash &= 0xff;
-
-	return hash;
-}
-
-/**
- * spider_net_set_multi - sets multicast addresses and promisc flags
- * @netdev: interface device structure
- *
- * spider_net_set_multi configures multicast addresses as needed for the
- * netdev interface. It also sets up multicast, allmulti and promisc
- * flags appropriately
- */
-static void
-spider_net_set_multi(struct net_device *netdev)
-{
-	struct netdev_hw_addr *ha;
-	u8 hash;
-	int i;
-	u32 reg;
-	struct spider_net_card *card = netdev_priv(netdev);
-	DECLARE_BITMAP(bitmask, SPIDER_NET_MULTICAST_HASHES);
-
-	spider_net_set_promisc(card);
-
-	if (netdev->flags & IFF_ALLMULTI) {
-		bitmap_fill(bitmask, SPIDER_NET_MULTICAST_HASHES);
-		goto write_hash;
-	}
-
-	bitmap_zero(bitmask, SPIDER_NET_MULTICAST_HASHES);
-
-	/* well, we know, what the broadcast hash value is: it's xfd
-	hash = spider_net_get_multicast_hash(netdev, netdev->broadcast); */
-	__set_bit(0xfd, bitmask);
-
-	netdev_for_each_mc_addr(ha, netdev) {
-		hash = spider_net_get_multicast_hash(netdev, ha->addr);
-		__set_bit(hash, bitmask);
-	}
-
-write_hash:
-	for (i = 0; i < SPIDER_NET_MULTICAST_HASHES / 4; i++) {
-		reg = 0;
-		if (test_bit(i * 4, bitmask))
-			reg += 0x08;
-		reg <<= 8;
-		if (test_bit(i * 4 + 1, bitmask))
-			reg += 0x08;
-		reg <<= 8;
-		if (test_bit(i * 4 + 2, bitmask))
-			reg += 0x08;
-		reg <<= 8;
-		if (test_bit(i * 4 + 3, bitmask))
-			reg += 0x08;
-
-		spider_net_write_reg(card, SPIDER_NET_GMRMHFILnR + i * 4, reg);
-	}
-}
-
-/**
- * spider_net_prepare_tx_descr - fill tx descriptor with skb data
- * @card: card structure
- * @skb: packet to use
- *
- * returns 0 on success, <0 on failure.
- *
- * fills out the descriptor structure with skb data and len. Copies data,
- * if needed (32bit DMA!)
- */
-static int
-spider_net_prepare_tx_descr(struct spider_net_card *card,
-			    struct sk_buff *skb)
-{
-	struct spider_net_descr_chain *chain = &card->tx_chain;
-	struct spider_net_descr *descr;
-	struct spider_net_hw_descr *hwdescr;
-	dma_addr_t buf;
-	unsigned long flags;
-
-	buf = dma_map_single(&card->pdev->dev, skb->data, skb->len,
-			     DMA_TO_DEVICE);
-	if (dma_mapping_error(&card->pdev->dev, buf)) {
-		if (netif_msg_tx_err(card) && net_ratelimit())
-			dev_err(&card->netdev->dev, "could not iommu-map packet (%p, %i). "
-				  "Dropping packet\n", skb->data, skb->len);
-		card->spider_stats.tx_iommu_map_error++;
-		return -ENOMEM;
-	}
-
-	spin_lock_irqsave(&chain->lock, flags);
-	descr = card->tx_chain.head;
-	if (descr->next == chain->tail->prev) {
-		spin_unlock_irqrestore(&chain->lock, flags);
-		dma_unmap_single(&card->pdev->dev, buf, skb->len,
-				 DMA_TO_DEVICE);
-		return -ENOMEM;
-	}
-	hwdescr = descr->hwdescr;
-	chain->head = descr->next;
-
-	descr->skb = skb;
-	hwdescr->buf_addr = buf;
-	hwdescr->buf_size = skb->len;
-	hwdescr->next_descr_addr = 0;
-	hwdescr->data_status = 0;
-
-	hwdescr->dmac_cmd_status =
-			SPIDER_NET_DESCR_CARDOWNED | SPIDER_NET_DMAC_TXFRMTL;
-	spin_unlock_irqrestore(&chain->lock, flags);
-
-	if (skb->ip_summed == CHECKSUM_PARTIAL)
-		switch (ip_hdr(skb)->protocol) {
-		case IPPROTO_TCP:
-			hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_TCP;
-			break;
-		case IPPROTO_UDP:
-			hwdescr->dmac_cmd_status |= SPIDER_NET_DMAC_UDP;
-			break;
-		}
-
-	/* Chain the bus address, so that the DMA engine finds this descr. */
-	wmb();
-	descr->prev->hwdescr->next_descr_addr = descr->bus_addr;
-
-	netif_trans_update(card->netdev); /* set netdev watchdog timer */
-	return 0;
-}
-
-static int
-spider_net_set_low_watermark(struct spider_net_card *card)
-{
-	struct spider_net_descr *descr = card->tx_chain.tail;
-	struct spider_net_hw_descr *hwdescr;
-	unsigned long flags;
-	int status;
-	int cnt=0;
-	int i;
-
-	/* Measure the length of the queue. Measurement does not
-	 * need to be precise -- does not need a lock.
-	 */
-	while (descr != card->tx_chain.head) {
-		status = descr->hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_NOT_IN_USE;
-		if (status == SPIDER_NET_DESCR_NOT_IN_USE)
-			break;
-		descr = descr->next;
-		cnt++;
-	}
-
-	/* If TX queue is short, don't even bother with interrupts */
-	if (cnt < card->tx_chain.num_desc/4)
-		return cnt;
-
-	/* Set low-watermark 3/4th's of the way into the queue. */
-	descr = card->tx_chain.tail;
-	cnt = (cnt*3)/4;
-	for (i=0;i<cnt; i++)
-		descr = descr->next;
-
-	/* Set the new watermark, clear the old watermark */
-	spin_lock_irqsave(&card->tx_chain.lock, flags);
-	descr->hwdescr->dmac_cmd_status |= SPIDER_NET_DESCR_TXDESFLG;
-	if (card->low_watermark && card->low_watermark != descr) {
-		hwdescr = card->low_watermark->hwdescr;
-		hwdescr->dmac_cmd_status =
-		     hwdescr->dmac_cmd_status & ~SPIDER_NET_DESCR_TXDESFLG;
-	}
-	card->low_watermark = descr;
-	spin_unlock_irqrestore(&card->tx_chain.lock, flags);
-	return cnt;
-}
-
-/**
- * spider_net_release_tx_chain - processes sent tx descriptors
- * @card: adapter structure
- * @brutal: if set, don't care about whether descriptor seems to be in use
- *
- * returns 0 if the tx ring is empty, otherwise 1.
- *
- * spider_net_release_tx_chain releases the tx descriptors that spider has
- * finished with (if non-brutal) or simply release tx descriptors (if brutal).
- * If some other context is calling this function, we return 1 so that we're
- * scheduled again (if we were scheduled) and will not lose initiative.
- */
-static int
-spider_net_release_tx_chain(struct spider_net_card *card, int brutal)
-{
-	struct net_device *dev = card->netdev;
-	struct spider_net_descr_chain *chain = &card->tx_chain;
-	struct spider_net_descr *descr;
-	struct spider_net_hw_descr *hwdescr;
-	struct sk_buff *skb;
-	u32 buf_addr;
-	unsigned long flags;
-	int status;
-
-	while (1) {
-		spin_lock_irqsave(&chain->lock, flags);
-		if (chain->tail == chain->head) {
-			spin_unlock_irqrestore(&chain->lock, flags);
-			return 0;
-		}
-		descr = chain->tail;
-		hwdescr = descr->hwdescr;
-
-		status = spider_net_get_descr_status(hwdescr);
-		switch (status) {
-		case SPIDER_NET_DESCR_COMPLETE:
-			dev->stats.tx_packets++;
-			dev->stats.tx_bytes += descr->skb->len;
-			break;
-
-		case SPIDER_NET_DESCR_CARDOWNED:
-			if (!brutal) {
-				spin_unlock_irqrestore(&chain->lock, flags);
-				return 1;
-			}
-
-			/* fallthrough, if we release the descriptors
-			 * brutally (then we don't care about
-			 * SPIDER_NET_DESCR_CARDOWNED)
-			 */
-			fallthrough;
-
-		case SPIDER_NET_DESCR_RESPONSE_ERROR:
-		case SPIDER_NET_DESCR_PROTECTION_ERROR:
-		case SPIDER_NET_DESCR_FORCE_END:
-			if (netif_msg_tx_err(card))
-				dev_err(&card->netdev->dev, "forcing end of tx descriptor "
-				       "with status x%02x\n", status);
-			dev->stats.tx_errors++;
-			break;
-
-		default:
-			dev->stats.tx_dropped++;
-			if (!brutal) {
-				spin_unlock_irqrestore(&chain->lock, flags);
-				return 1;
-			}
-		}
-
-		chain->tail = descr->next;
-		hwdescr->dmac_cmd_status |= SPIDER_NET_DESCR_NOT_IN_USE;
-		skb = descr->skb;
-		descr->skb = NULL;
-		buf_addr = hwdescr->buf_addr;
-		spin_unlock_irqrestore(&chain->lock, flags);
-
-		/* unmap the skb */
-		if (skb) {
-			dma_unmap_single(&card->pdev->dev, buf_addr, skb->len,
-					 DMA_TO_DEVICE);
-			dev_consume_skb_any(skb);
-		}
-	}
-	return 0;
-}
-
-/**
- * spider_net_kick_tx_dma - enables TX DMA processing
- * @card: card structure
- *
- * This routine will start the transmit DMA running if
- * it is not already running. This routine ned only be
- * called when queueing a new packet to an empty tx queue.
- * Writes the current tx chain head as start address
- * of the tx descriptor chain and enables the transmission
- * DMA engine.
- */
-static inline void
-spider_net_kick_tx_dma(struct spider_net_card *card)
-{
-	struct spider_net_descr *descr;
-
-	if (spider_net_read_reg(card, SPIDER_NET_GDTDMACCNTR) &
-			SPIDER_NET_TX_DMA_EN)
-		goto out;
-
-	descr = card->tx_chain.tail;
-	for (;;) {
-		if (spider_net_get_descr_status(descr->hwdescr) ==
-				SPIDER_NET_DESCR_CARDOWNED) {
-			spider_net_write_reg(card, SPIDER_NET_GDTDCHA,
-					descr->bus_addr);
-			spider_net_write_reg(card, SPIDER_NET_GDTDMACCNTR,
-					SPIDER_NET_DMA_TX_VALUE);
-			break;
-		}
-		if (descr == card->tx_chain.head)
-			break;
-		descr = descr->next;
-	}
-
-out:
-	mod_timer(&card->tx_timer, jiffies + SPIDER_NET_TX_TIMER);
-}
-
-/**
- * spider_net_xmit - transmits a frame over the device
- * @skb: packet to send out
- * @netdev: interface device structure
- *
- * returns NETDEV_TX_OK on success, NETDEV_TX_BUSY on failure
- */
-static netdev_tx_t
-spider_net_xmit(struct sk_buff *skb, struct net_device *netdev)
-{
-	int cnt;
-	struct spider_net_card *card = netdev_priv(netdev);
-
-	spider_net_release_tx_chain(card, 0);
-
-	if (spider_net_prepare_tx_descr(card, skb) != 0) {
-		netdev->stats.tx_dropped++;
-		netif_stop_queue(netdev);
-		return NETDEV_TX_BUSY;
-	}
-
-	cnt = spider_net_set_low_watermark(card);
-	if (cnt < 5)
-		spider_net_kick_tx_dma(card);
-	return NETDEV_TX_OK;
-}
-
-/**
- * spider_net_cleanup_tx_ring - cleans up the TX ring
- * @t: timer context used to obtain the pointer to net card data structure
- *
- * spider_net_cleanup_tx_ring is called by either the tx_timer
- * or from the NAPI polling routine.
- * This routine releases resources associted with transmitted
- * packets, including updating the queue tail pointer.
- */
-static void
-spider_net_cleanup_tx_ring(struct timer_list *t)
-{
-	struct spider_net_card *card = from_timer(card, t, tx_timer);
-	if ((spider_net_release_tx_chain(card, 0) != 0) &&
-	    (card->netdev->flags & IFF_UP)) {
-		spider_net_kick_tx_dma(card);
-		netif_wake_queue(card->netdev);
-	}
-}
-
-/**
- * spider_net_do_ioctl - called for device ioctls
- * @netdev: interface device structure
- * @ifr: request parameter structure for ioctl
- * @cmd: command code for ioctl
- *
- * returns 0 on success, <0 on failure. Currently, we have no special ioctls.
- * -EOPNOTSUPP is returned, if an unknown ioctl was requested
- */
-static int
-spider_net_do_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
-{
-	switch (cmd) {
-	default:
-		return -EOPNOTSUPP;
-	}
-}
-
-/**
- * spider_net_pass_skb_up - takes an skb from a descriptor and passes it on
- * @descr: descriptor to process
- * @card: card structure
- *
- * Fills out skb structure and passes the data to the stack.
- * The descriptor state is not changed.
- */
-static void
-spider_net_pass_skb_up(struct spider_net_descr *descr,
-		       struct spider_net_card *card)
-{
-	struct spider_net_hw_descr *hwdescr = descr->hwdescr;
-	struct sk_buff *skb = descr->skb;
-	struct net_device *netdev = card->netdev;
-	u32 data_status = hwdescr->data_status;
-	u32 data_error = hwdescr->data_error;
-
-	skb_put(skb, hwdescr->valid_size);
-
-	/* the card seems to add 2 bytes of junk in front
-	 * of the ethernet frame
-	 */
-#define SPIDER_MISALIGN		2
-	skb_pull(skb, SPIDER_MISALIGN);
-	skb->protocol = eth_type_trans(skb, netdev);
-
-	/* checksum offload */
-	skb_checksum_none_assert(skb);
-	if (netdev->features & NETIF_F_RXCSUM) {
-		if ( ( (data_status & SPIDER_NET_DATA_STATUS_CKSUM_MASK) ==
-		       SPIDER_NET_DATA_STATUS_CKSUM_MASK) &&
-		     !(data_error & SPIDER_NET_DATA_ERR_CKSUM_MASK))
-			skb->ip_summed = CHECKSUM_UNNECESSARY;
-	}
-
-	if (data_status & SPIDER_NET_VLAN_PACKET) {
-		/* further enhancements: HW-accel VLAN */
-	}
-
-	/* update netdevice statistics */
-	netdev->stats.rx_packets++;
-	netdev->stats.rx_bytes += skb->len;
-
-	/* pass skb up to stack */
-	netif_receive_skb(skb);
-}
-
-static void show_rx_chain(struct spider_net_card *card)
-{
-	struct spider_net_descr_chain *chain = &card->rx_chain;
-	struct spider_net_descr *start= chain->tail;
-	struct spider_net_descr *descr= start;
-	struct spider_net_hw_descr *hwd = start->hwdescr;
-	struct device *dev = &card->netdev->dev;
-	u32 curr_desc, next_desc;
-	int status;
-
-	int tot = 0;
-	int cnt = 0;
-	int off = start - chain->ring;
-	int cstat = hwd->dmac_cmd_status;
-
-	dev_info(dev, "Total number of descrs=%d\n",
-		chain->num_desc);
-	dev_info(dev, "Chain tail located at descr=%d, status=0x%x\n",
-		off, cstat);
-
-	curr_desc = spider_net_read_reg(card, SPIDER_NET_GDACTDPA);
-	next_desc = spider_net_read_reg(card, SPIDER_NET_GDACNEXTDA);
-
-	status = cstat;
-	do
-	{
-		hwd = descr->hwdescr;
-		off = descr - chain->ring;
-		status = hwd->dmac_cmd_status;
-
-		if (descr == chain->head)
-			dev_info(dev, "Chain head is at %d, head status=0x%x\n",
-			         off, status);
-
-		if (curr_desc == descr->bus_addr)
-			dev_info(dev, "HW curr desc (GDACTDPA) is at %d, status=0x%x\n",
-			         off, status);
-
-		if (next_desc == descr->bus_addr)
-			dev_info(dev, "HW next desc (GDACNEXTDA) is at %d, status=0x%x\n",
-			         off, status);
-
-		if (hwd->next_descr_addr == 0)
-			dev_info(dev, "chain is cut at %d\n", off);
-
-		if (cstat != status) {
-			int from = (chain->num_desc + off - cnt) % chain->num_desc;
-			int to = (chain->num_desc + off - 1) % chain->num_desc;
-			dev_info(dev, "Have %d (from %d to %d) descrs "
-			         "with stat=0x%08x\n", cnt, from, to, cstat);
-			cstat = status;
-			cnt = 0;
-		}
-
-		cnt ++;
-		tot ++;
-		descr = descr->next;
-	} while (descr != start);
-
-	dev_info(dev, "Last %d descrs with stat=0x%08x "
-	         "for a total of %d descrs\n", cnt, cstat, tot);
-
-#ifdef DEBUG
-	/* Now dump the whole ring */
-	descr = start;
-	do
-	{
-		struct spider_net_hw_descr *hwd = descr->hwdescr;
-		status = spider_net_get_descr_status(hwd);
-		cnt = descr - chain->ring;
-		dev_info(dev, "Descr %d stat=0x%08x skb=%p\n",
-		         cnt, status, descr->skb);
-		dev_info(dev, "bus addr=%08x buf addr=%08x sz=%d\n",
-		         descr->bus_addr, hwd->buf_addr, hwd->buf_size);
-		dev_info(dev, "next=%08x result sz=%d valid sz=%d\n",
-		         hwd->next_descr_addr, hwd->result_size,
-		         hwd->valid_size);
-		dev_info(dev, "dmac=%08x data stat=%08x data err=%08x\n",
-		         hwd->dmac_cmd_status, hwd->data_status,
-		         hwd->data_error);
-		dev_info(dev, "\n");
-
-		descr = descr->next;
-	} while (descr != start);
-#endif
-
-}
-
-/**
- * spider_net_resync_head_ptr - Advance head ptr past empty descrs
- * @card: card structure
- *
- * If the driver fails to keep up and empty the queue, then the
- * hardware wil run out of room to put incoming packets. This
- * will cause the hardware to skip descrs that are full (instead
- * of halting/retrying). Thus, once the driver runs, it wil need
- * to "catch up" to where the hardware chain pointer is at.
- */
-static void spider_net_resync_head_ptr(struct spider_net_card *card)
-{
-	unsigned long flags;
-	struct spider_net_descr_chain *chain = &card->rx_chain;
-	struct spider_net_descr *descr;
-	int i, status;
-
-	/* Advance head pointer past any empty descrs */
-	descr = chain->head;
-	status = spider_net_get_descr_status(descr->hwdescr);
-
-	if (status == SPIDER_NET_DESCR_NOT_IN_USE)
-		return;
-
-	spin_lock_irqsave(&chain->lock, flags);
-
-	descr = chain->head;
-	status = spider_net_get_descr_status(descr->hwdescr);
-	for (i=0; i<chain->num_desc; i++) {
-		if (status != SPIDER_NET_DESCR_CARDOWNED) break;
-		descr = descr->next;
-		status = spider_net_get_descr_status(descr->hwdescr);
-	}
-	chain->head = descr;
-
-	spin_unlock_irqrestore(&chain->lock, flags);
-}
-
-static int spider_net_resync_tail_ptr(struct spider_net_card *card)
-{
-	struct spider_net_descr_chain *chain = &card->rx_chain;
-	struct spider_net_descr *descr;
-	int i, status;
-
-	/* Advance tail pointer past any empty and reaped descrs */
-	descr = chain->tail;
-	status = spider_net_get_descr_status(descr->hwdescr);
-
-	for (i=0; i<chain->num_desc; i++) {
-		if ((status != SPIDER_NET_DESCR_CARDOWNED) &&
-		    (status != SPIDER_NET_DESCR_NOT_IN_USE)) break;
-		descr = descr->next;
-		status = spider_net_get_descr_status(descr->hwdescr);
-	}
-	chain->tail = descr;
-
-	if ((i == chain->num_desc) || (i == 0))
-		return 1;
-	return 0;
-}
-
-/**
- * spider_net_decode_one_descr - processes an RX descriptor
- * @card: card structure
- *
- * Returns 1 if a packet has been sent to the stack, otherwise 0.
- *
- * Processes an RX descriptor by iommu-unmapping the data buffer
- * and passing the packet up to the stack. This function is called
- * in softirq context, e.g. either bottom half from interrupt or
- * NAPI polling context.
- */
-static int
-spider_net_decode_one_descr(struct spider_net_card *card)
-{
-	struct net_device *dev = card->netdev;
-	struct spider_net_descr_chain *chain = &card->rx_chain;
-	struct spider_net_descr *descr = chain->tail;
-	struct spider_net_hw_descr *hwdescr = descr->hwdescr;
-	u32 hw_buf_addr;
-	int status;
-
-	status = spider_net_get_descr_status(hwdescr);
-
-	/* Nothing in the descriptor, or ring must be empty */
-	if ((status == SPIDER_NET_DESCR_CARDOWNED) ||
-	    (status == SPIDER_NET_DESCR_NOT_IN_USE))
-		return 0;
-
-	/* descriptor definitively used -- move on tail */
-	chain->tail = descr->next;
-
-	/* unmap descriptor */
-	hw_buf_addr = hwdescr->buf_addr;
-	hwdescr->buf_addr = 0xffffffff;
-	dma_unmap_single(&card->pdev->dev, hw_buf_addr, SPIDER_NET_MAX_FRAME,
-			 DMA_FROM_DEVICE);
-
-	if ( (status == SPIDER_NET_DESCR_RESPONSE_ERROR) ||
-	     (status == SPIDER_NET_DESCR_PROTECTION_ERROR) ||
-	     (status == SPIDER_NET_DESCR_FORCE_END) ) {
-		if (netif_msg_rx_err(card))
-			dev_err(&dev->dev,
-			       "dropping RX descriptor with state %d\n", status);
-		dev->stats.rx_dropped++;
-		goto bad_desc;
-	}
-
-	if ( (status != SPIDER_NET_DESCR_COMPLETE) &&
-	     (status != SPIDER_NET_DESCR_FRAME_END) ) {
-		if (netif_msg_rx_err(card))
-			dev_err(&card->netdev->dev,
-			       "RX descriptor with unknown state %d\n", status);
-		card->spider_stats.rx_desc_unk_state++;
-		goto bad_desc;
-	}
-
-	/* The cases we'll throw away the packet immediately */
-	if (hwdescr->data_error & SPIDER_NET_DESTROY_RX_FLAGS) {
-		if (netif_msg_rx_err(card))
-			dev_err(&card->netdev->dev,
-			       "error in received descriptor found, "
-			       "data_status=x%08x, data_error=x%08x\n",
-			       hwdescr->data_status, hwdescr->data_error);
-		goto bad_desc;
-	}
-
-	if (hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_BAD_STATUS) {
-		dev_err(&card->netdev->dev, "bad status, cmd_status=x%08x\n",
-			       hwdescr->dmac_cmd_status);
-		pr_err("buf_addr=x%08x\n", hw_buf_addr);
-		pr_err("buf_size=x%08x\n", hwdescr->buf_size);
-		pr_err("next_descr_addr=x%08x\n", hwdescr->next_descr_addr);
-		pr_err("result_size=x%08x\n", hwdescr->result_size);
-		pr_err("valid_size=x%08x\n", hwdescr->valid_size);
-		pr_err("data_status=x%08x\n", hwdescr->data_status);
-		pr_err("data_error=x%08x\n", hwdescr->data_error);
-		pr_err("which=%ld\n", descr - card->rx_chain.ring);
-
-		card->spider_stats.rx_desc_error++;
-		goto bad_desc;
-	}
-
-	/* Ok, we've got a packet in descr */
-	spider_net_pass_skb_up(descr, card);
-	descr->skb = NULL;
-	hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
-	return 1;
-
-bad_desc:
-	if (netif_msg_rx_err(card))
-		show_rx_chain(card);
-	dev_kfree_skb_irq(descr->skb);
-	descr->skb = NULL;
-	hwdescr->dmac_cmd_status = SPIDER_NET_DESCR_NOT_IN_USE;
-	return 0;
-}
-
-/**
- * spider_net_poll - NAPI poll function called by the stack to return packets
- * @napi: napi device structure
- * @budget: number of packets we can pass to the stack at most
- *
- * returns 0 if no more packets available to the driver/stack. Returns 1,
- * if the quota is exceeded, but the driver has still packets.
- *
- * spider_net_poll returns all packets from the rx descriptors to the stack
- * (using netif_receive_skb). If all/enough packets are up, the driver
- * reenables interrupts and returns 0. If not, 1 is returned.
- */
-static int spider_net_poll(struct napi_struct *napi, int budget)
-{
-	struct spider_net_card *card = container_of(napi, struct spider_net_card, napi);
-	int packets_done = 0;
-
-	while (packets_done < budget) {
-		if (!spider_net_decode_one_descr(card))
-			break;
-
-		packets_done++;
-	}
-
-	if ((packets_done == 0) && (card->num_rx_ints != 0)) {
-		if (!spider_net_resync_tail_ptr(card))
-			packets_done = budget;
-		spider_net_resync_head_ptr(card);
-	}
-	card->num_rx_ints = 0;
-
-	spider_net_refill_rx_chain(card);
-	spider_net_enable_rxdmac(card);
-
-	spider_net_cleanup_tx_ring(&card->tx_timer);
-
-	/* if all packets are in the stack, enable interrupts and return 0 */
-	/* if not, return 1 */
-	if (packets_done < budget) {
-		napi_complete_done(napi, packets_done);
-		spider_net_rx_irq_on(card);
-		card->ignore_rx_ramfull = 0;
-	}
-
-	return packets_done;
-}
-
-/**
- * spider_net_set_mac - sets the MAC of an interface
- * @netdev: interface device structure
- * @p: pointer to new MAC address
- *
- * Returns 0 on success, <0 on failure. Currently, we don't support this
- * and will always return EOPNOTSUPP.
- */
-static int
-spider_net_set_mac(struct net_device *netdev, void *p)
-{
-	struct spider_net_card *card = netdev_priv(netdev);
-	u32 macl, macu, regvalue;
-	struct sockaddr *addr = p;
-
-	if (!is_valid_ether_addr(addr->sa_data))
-		return -EADDRNOTAVAIL;
-
-	eth_hw_addr_set(netdev, addr->sa_data);
-
-	/* switch off GMACTPE and GMACRPE */
-	regvalue = spider_net_read_reg(card, SPIDER_NET_GMACOPEMD);
-	regvalue &= ~((1 << 5) | (1 << 6));
-	spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, regvalue);
-
-	/* write mac */
-	macu = (netdev->dev_addr[0]<<24) + (netdev->dev_addr[1]<<16) +
-		(netdev->dev_addr[2]<<8) + (netdev->dev_addr[3]);
-	macl = (netdev->dev_addr[4]<<8) + (netdev->dev_addr[5]);
-	spider_net_write_reg(card, SPIDER_NET_GMACUNIMACU, macu);
-	spider_net_write_reg(card, SPIDER_NET_GMACUNIMACL, macl);
-
-	/* switch GMACTPE and GMACRPE back on */
-	regvalue = spider_net_read_reg(card, SPIDER_NET_GMACOPEMD);
-	regvalue |= ((1 << 5) | (1 << 6));
-	spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, regvalue);
-
-	spider_net_set_promisc(card);
-
-	return 0;
-}
-
-/**
- * spider_net_link_reset
- * @netdev: net device structure
- *
- * This is called when the PHY_LINK signal is asserted. For the blade this is
- * not connected so we should never get here.
- *
- */
-static void
-spider_net_link_reset(struct net_device *netdev)
-{
-
-	struct spider_net_card *card = netdev_priv(netdev);
-
-	del_timer_sync(&card->aneg_timer);
-
-	/* clear interrupt, block further interrupts */
-	spider_net_write_reg(card, SPIDER_NET_GMACST,
-			     spider_net_read_reg(card, SPIDER_NET_GMACST));
-	spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0);
-
-	/* reset phy and setup aneg */
-	card->aneg_count = 0;
-	card->medium = BCM54XX_COPPER;
-	spider_net_setup_aneg(card);
-	mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
-
-}
-
-/**
- * spider_net_handle_error_irq - handles errors raised by an interrupt
- * @card: card structure
- * @status_reg: interrupt status register 0 (GHIINT0STS)
- * @error_reg1: interrupt status register 1 (GHIINT1STS)
- * @error_reg2: interrupt status register 2 (GHIINT2STS)
- *
- * spider_net_handle_error_irq treats or ignores all error conditions
- * found when an interrupt is presented
- */
-static void
-spider_net_handle_error_irq(struct spider_net_card *card, u32 status_reg,
-			    u32 error_reg1, u32 error_reg2)
-{
-	u32 i;
-	int show_error = 1;
-
-	/* check GHIINT0STS ************************************/
-	if (status_reg)
-		for (i = 0; i < 32; i++)
-			if (status_reg & (1<<i))
-				switch (i)
-	{
-	/* let error_reg1 and error_reg2 evaluation decide, what to do
-	case SPIDER_NET_PHYINT:
-	case SPIDER_NET_GMAC2INT:
-	case SPIDER_NET_GMAC1INT:
-	case SPIDER_NET_GFIFOINT:
-	case SPIDER_NET_DMACINT:
-	case SPIDER_NET_GSYSINT:
-		break; */
-
-	case SPIDER_NET_GIPSINT:
-		show_error = 0;
-		break;
-
-	case SPIDER_NET_GPWOPCMPINT:
-		/* PHY write operation completed */
-		show_error = 0;
-		break;
-	case SPIDER_NET_GPROPCMPINT:
-		/* PHY read operation completed */
-		/* we don't use semaphores, as we poll for the completion
-		 * of the read operation in spider_net_read_phy. Should take
-		 * about 50 us
-		 */
-		show_error = 0;
-		break;
-	case SPIDER_NET_GPWFFINT:
-		/* PHY command queue full */
-		if (netif_msg_intr(card))
-			dev_err(&card->netdev->dev, "PHY write queue full\n");
-		show_error = 0;
-		break;
-
-	/* case SPIDER_NET_GRMDADRINT: not used. print a message */
-	/* case SPIDER_NET_GRMARPINT: not used. print a message */
-	/* case SPIDER_NET_GRMMPINT: not used. print a message */
-
-	case SPIDER_NET_GDTDEN0INT:
-		/* someone has set TX_DMA_EN to 0 */
-		show_error = 0;
-		break;
-
-	case SPIDER_NET_GDDDEN0INT:
-	case SPIDER_NET_GDCDEN0INT:
-	case SPIDER_NET_GDBDEN0INT:
-	case SPIDER_NET_GDADEN0INT:
-		/* someone has set RX_DMA_EN to 0 */
-		show_error = 0;
-		break;
-
-	/* RX interrupts */
-	case SPIDER_NET_GDDFDCINT:
-	case SPIDER_NET_GDCFDCINT:
-	case SPIDER_NET_GDBFDCINT:
-	case SPIDER_NET_GDAFDCINT:
-	/* case SPIDER_NET_GDNMINT: not used. print a message */
-	/* case SPIDER_NET_GCNMINT: not used. print a message */
-	/* case SPIDER_NET_GBNMINT: not used. print a message */
-	/* case SPIDER_NET_GANMINT: not used. print a message */
-	/* case SPIDER_NET_GRFNMINT: not used. print a message */
-		show_error = 0;
-		break;
-
-	/* TX interrupts */
-	case SPIDER_NET_GDTFDCINT:
-		show_error = 0;
-		break;
-	case SPIDER_NET_GTTEDINT:
-		show_error = 0;
-		break;
-	case SPIDER_NET_GDTDCEINT:
-		/* chain end. If a descriptor should be sent, kick off
-		 * tx dma
-		if (card->tx_chain.tail != card->tx_chain.head)
-			spider_net_kick_tx_dma(card);
-		*/
-		show_error = 0;
-		break;
-
-	/* case SPIDER_NET_G1TMCNTINT: not used. print a message */
-	/* case SPIDER_NET_GFREECNTINT: not used. print a message */
-	}
-
-	/* check GHIINT1STS ************************************/
-	if (error_reg1)
-		for (i = 0; i < 32; i++)
-			if (error_reg1 & (1<<i))
-				switch (i)
-	{
-	case SPIDER_NET_GTMFLLINT:
-		/* TX RAM full may happen on a usual case.
-		 * Logging is not needed.
-		 */
-		show_error = 0;
-		break;
-	case SPIDER_NET_GRFDFLLINT:
-	case SPIDER_NET_GRFCFLLINT:
-	case SPIDER_NET_GRFBFLLINT:
-	case SPIDER_NET_GRFAFLLINT:
-	case SPIDER_NET_GRMFLLINT:
-		/* Could happen when rx chain is full */
-		if (card->ignore_rx_ramfull == 0) {
-			card->ignore_rx_ramfull = 1;
-			spider_net_resync_head_ptr(card);
-			spider_net_refill_rx_chain(card);
-			spider_net_enable_rxdmac(card);
-			card->num_rx_ints ++;
-			napi_schedule(&card->napi);
-		}
-		show_error = 0;
-		break;
-
-	/* case SPIDER_NET_GTMSHTINT: problem, print a message */
-	case SPIDER_NET_GDTINVDINT:
-		/* allrighty. tx from previous descr ok */
-		show_error = 0;
-		break;
-
-	/* chain end */
-	case SPIDER_NET_GDDDCEINT:
-	case SPIDER_NET_GDCDCEINT:
-	case SPIDER_NET_GDBDCEINT:
-	case SPIDER_NET_GDADCEINT:
-		spider_net_resync_head_ptr(card);
-		spider_net_refill_rx_chain(card);
-		spider_net_enable_rxdmac(card);
-		card->num_rx_ints ++;
-		napi_schedule(&card->napi);
-		show_error = 0;
-		break;
-
-	/* invalid descriptor */
-	case SPIDER_NET_GDDINVDINT:
-	case SPIDER_NET_GDCINVDINT:
-	case SPIDER_NET_GDBINVDINT:
-	case SPIDER_NET_GDAINVDINT:
-		/* Could happen when rx chain is full */
-		spider_net_resync_head_ptr(card);
-		spider_net_refill_rx_chain(card);
-		spider_net_enable_rxdmac(card);
-		card->num_rx_ints ++;
-		napi_schedule(&card->napi);
-		show_error = 0;
-		break;
-
-	/* case SPIDER_NET_GDTRSERINT: problem, print a message */
-	/* case SPIDER_NET_GDDRSERINT: problem, print a message */
-	/* case SPIDER_NET_GDCRSERINT: problem, print a message */
-	/* case SPIDER_NET_GDBRSERINT: problem, print a message */
-	/* case SPIDER_NET_GDARSERINT: problem, print a message */
-	/* case SPIDER_NET_GDSERINT: problem, print a message */
-	/* case SPIDER_NET_GDTPTERINT: problem, print a message */
-	/* case SPIDER_NET_GDDPTERINT: problem, print a message */
-	/* case SPIDER_NET_GDCPTERINT: problem, print a message */
-	/* case SPIDER_NET_GDBPTERINT: problem, print a message */
-	/* case SPIDER_NET_GDAPTERINT: problem, print a message */
-	default:
-		show_error = 1;
-		break;
-	}
-
-	/* check GHIINT2STS ************************************/
-	if (error_reg2)
-		for (i = 0; i < 32; i++)
-			if (error_reg2 & (1<<i))
-				switch (i)
-	{
-	/* there is nothing we can (want  to) do at this time. Log a
-	 * message, we can switch on and off the specific values later on
-	case SPIDER_NET_GPROPERINT:
-	case SPIDER_NET_GMCTCRSNGINT:
-	case SPIDER_NET_GMCTLCOLINT:
-	case SPIDER_NET_GMCTTMOTINT:
-	case SPIDER_NET_GMCRCAERINT:
-	case SPIDER_NET_GMCRCALERINT:
-	case SPIDER_NET_GMCRALNERINT:
-	case SPIDER_NET_GMCROVRINT:
-	case SPIDER_NET_GMCRRNTINT:
-	case SPIDER_NET_GMCRRXERINT:
-	case SPIDER_NET_GTITCSERINT:
-	case SPIDER_NET_GTIFMTERINT:
-	case SPIDER_NET_GTIPKTRVKINT:
-	case SPIDER_NET_GTISPINGINT:
-	case SPIDER_NET_GTISADNGINT:
-	case SPIDER_NET_GTISPDNGINT:
-	case SPIDER_NET_GRIFMTERINT:
-	case SPIDER_NET_GRIPKTRVKINT:
-	case SPIDER_NET_GRISPINGINT:
-	case SPIDER_NET_GRISADNGINT:
-	case SPIDER_NET_GRISPDNGINT:
-		break;
-	*/
-		default:
-			break;
-	}
-
-	if ((show_error) && (netif_msg_intr(card)) && net_ratelimit())
-		dev_err(&card->netdev->dev, "Error interrupt, GHIINT0STS = 0x%08x, "
-		       "GHIINT1STS = 0x%08x, GHIINT2STS = 0x%08x\n",
-		       status_reg, error_reg1, error_reg2);
-
-	/* clear interrupt sources */
-	spider_net_write_reg(card, SPIDER_NET_GHIINT1STS, error_reg1);
-	spider_net_write_reg(card, SPIDER_NET_GHIINT2STS, error_reg2);
-}
-
-/**
- * spider_net_interrupt - interrupt handler for spider_net
- * @irq: interrupt number
- * @ptr: pointer to net_device
- *
- * returns IRQ_HANDLED, if interrupt was for driver, or IRQ_NONE, if no
- * interrupt found raised by card.
- *
- * This is the interrupt handler, that turns off
- * interrupts for this device and makes the stack poll the driver
- */
-static irqreturn_t
-spider_net_interrupt(int irq, void *ptr)
-{
-	struct net_device *netdev = ptr;
-	struct spider_net_card *card = netdev_priv(netdev);
-	u32 status_reg, error_reg1, error_reg2;
-
-	status_reg = spider_net_read_reg(card, SPIDER_NET_GHIINT0STS);
-	error_reg1 = spider_net_read_reg(card, SPIDER_NET_GHIINT1STS);
-	error_reg2 = spider_net_read_reg(card, SPIDER_NET_GHIINT2STS);
-
-	if (!(status_reg & SPIDER_NET_INT0_MASK_VALUE) &&
-	    !(error_reg1 & SPIDER_NET_INT1_MASK_VALUE) &&
-	    !(error_reg2 & SPIDER_NET_INT2_MASK_VALUE))
-		return IRQ_NONE;
-
-	if (status_reg & SPIDER_NET_RXINT ) {
-		spider_net_rx_irq_off(card);
-		napi_schedule(&card->napi);
-		card->num_rx_ints ++;
-	}
-	if (status_reg & SPIDER_NET_TXINT)
-		napi_schedule(&card->napi);
-
-	if (status_reg & SPIDER_NET_LINKINT)
-		spider_net_link_reset(netdev);
-
-	if (status_reg & SPIDER_NET_ERRINT )
-		spider_net_handle_error_irq(card, status_reg,
-					    error_reg1, error_reg2);
-
-	/* clear interrupt sources */
-	spider_net_write_reg(card, SPIDER_NET_GHIINT0STS, status_reg);
-
-	return IRQ_HANDLED;
-}
-
-#ifdef CONFIG_NET_POLL_CONTROLLER
-/**
- * spider_net_poll_controller - artificial interrupt for netconsole etc.
- * @netdev: interface device structure
- *
- * see Documentation/networking/netconsole.rst
- */
-static void
-spider_net_poll_controller(struct net_device *netdev)
-{
-	disable_irq(netdev->irq);
-	spider_net_interrupt(netdev->irq, netdev);
-	enable_irq(netdev->irq);
-}
-#endif /* CONFIG_NET_POLL_CONTROLLER */
-
-/**
- * spider_net_enable_interrupts - enable interrupts
- * @card: card structure
- *
- * spider_net_enable_interrupt enables several interrupts
- */
-static void
-spider_net_enable_interrupts(struct spider_net_card *card)
-{
-	spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK,
-			     SPIDER_NET_INT0_MASK_VALUE);
-	spider_net_write_reg(card, SPIDER_NET_GHIINT1MSK,
-			     SPIDER_NET_INT1_MASK_VALUE);
-	spider_net_write_reg(card, SPIDER_NET_GHIINT2MSK,
-			     SPIDER_NET_INT2_MASK_VALUE);
-}
-
-/**
- * spider_net_disable_interrupts - disable interrupts
- * @card: card structure
- *
- * spider_net_disable_interrupts disables all the interrupts
- */
-static void
-spider_net_disable_interrupts(struct spider_net_card *card)
-{
-	spider_net_write_reg(card, SPIDER_NET_GHIINT0MSK, 0);
-	spider_net_write_reg(card, SPIDER_NET_GHIINT1MSK, 0);
-	spider_net_write_reg(card, SPIDER_NET_GHIINT2MSK, 0);
-	spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0);
-}
-
-/**
- * spider_net_init_card - initializes the card
- * @card: card structure
- *
- * spider_net_init_card initializes the card so that other registers can
- * be used
- */
-static void
-spider_net_init_card(struct spider_net_card *card)
-{
-	spider_net_write_reg(card, SPIDER_NET_CKRCTRL,
-			     SPIDER_NET_CKRCTRL_STOP_VALUE);
-
-	spider_net_write_reg(card, SPIDER_NET_CKRCTRL,
-			     SPIDER_NET_CKRCTRL_RUN_VALUE);
-
-	/* trigger ETOMOD signal */
-	spider_net_write_reg(card, SPIDER_NET_GMACOPEMD,
-		spider_net_read_reg(card, SPIDER_NET_GMACOPEMD) | 0x4);
-
-	spider_net_disable_interrupts(card);
-}
-
-/**
- * spider_net_enable_card - enables the card by setting all kinds of regs
- * @card: card structure
- *
- * spider_net_enable_card sets a lot of SMMIO registers to enable the device
- */
-static void
-spider_net_enable_card(struct spider_net_card *card)
-{
-	int i;
-	/* the following array consists of (register),(value) pairs
-	 * that are set in this function. A register of 0 ends the list
-	 */
-	u32 regs[][2] = {
-		{ SPIDER_NET_GRESUMINTNUM, 0 },
-		{ SPIDER_NET_GREINTNUM, 0 },
-
-		/* set interrupt frame number registers */
-		/* clear the single DMA engine registers first */
-		{ SPIDER_NET_GFAFRMNUM, SPIDER_NET_GFXFRAMES_VALUE },
-		{ SPIDER_NET_GFBFRMNUM, SPIDER_NET_GFXFRAMES_VALUE },
-		{ SPIDER_NET_GFCFRMNUM, SPIDER_NET_GFXFRAMES_VALUE },
-		{ SPIDER_NET_GFDFRMNUM, SPIDER_NET_GFXFRAMES_VALUE },
-		/* then set, what we really need */
-		{ SPIDER_NET_GFFRMNUM, SPIDER_NET_FRAMENUM_VALUE },
-
-		/* timer counter registers and stuff */
-		{ SPIDER_NET_GFREECNNUM, 0 },
-		{ SPIDER_NET_GONETIMENUM, 0 },
-		{ SPIDER_NET_GTOUTFRMNUM, 0 },
-
-		/* RX mode setting */
-		{ SPIDER_NET_GRXMDSET, SPIDER_NET_RXMODE_VALUE },
-		/* TX mode setting */
-		{ SPIDER_NET_GTXMDSET, SPIDER_NET_TXMODE_VALUE },
-		/* IPSEC mode setting */
-		{ SPIDER_NET_GIPSECINIT, SPIDER_NET_IPSECINIT_VALUE },
-
-		{ SPIDER_NET_GFTRESTRT, SPIDER_NET_RESTART_VALUE },
-
-		{ SPIDER_NET_GMRWOLCTRL, 0 },
-		{ SPIDER_NET_GTESTMD, 0x10000000 },
-		{ SPIDER_NET_GTTQMSK, 0x00400040 },
-
-		{ SPIDER_NET_GMACINTEN, 0 },
-
-		/* flow control stuff */
-		{ SPIDER_NET_GMACAPAUSE, SPIDER_NET_MACAPAUSE_VALUE },
-		{ SPIDER_NET_GMACTXPAUSE, SPIDER_NET_TXPAUSE_VALUE },
-
-		{ SPIDER_NET_GMACBSTLMT, SPIDER_NET_BURSTLMT_VALUE },
-		{ 0, 0}
-	};
-
-	i = 0;
-	while (regs[i][0]) {
-		spider_net_write_reg(card, regs[i][0], regs[i][1]);
-		i++;
-	}
-
-	/* clear unicast filter table entries 1 to 14 */
-	for (i = 1; i <= 14; i++) {
-		spider_net_write_reg(card,
-				     SPIDER_NET_GMRUAFILnR + i * 8,
-				     0x00080000);
-		spider_net_write_reg(card,
-				     SPIDER_NET_GMRUAFILnR + i * 8 + 4,
-				     0x00000000);
-	}
-
-	spider_net_write_reg(card, SPIDER_NET_GMRUA0FIL15R, 0x08080000);
-
-	spider_net_write_reg(card, SPIDER_NET_ECMODE, SPIDER_NET_ECMODE_VALUE);
-
-	/* set chain tail address for RX chains and
-	 * enable DMA
-	 */
-	spider_net_enable_rxchtails(card);
-	spider_net_enable_rxdmac(card);
-
-	spider_net_write_reg(card, SPIDER_NET_GRXDMAEN, SPIDER_NET_WOL_VALUE);
-
-	spider_net_write_reg(card, SPIDER_NET_GMACLENLMT,
-			     SPIDER_NET_LENLMT_VALUE);
-	spider_net_write_reg(card, SPIDER_NET_GMACOPEMD,
-			     SPIDER_NET_OPMODE_VALUE);
-
-	spider_net_write_reg(card, SPIDER_NET_GDTDMACCNTR,
-			     SPIDER_NET_GDTBSTA);
-}
-
-/**
- * spider_net_download_firmware - loads firmware into the adapter
- * @card: card structure
- * @firmware_ptr: pointer to firmware data
- *
- * spider_net_download_firmware loads the firmware data into the
- * adapter. It assumes the length etc. to be allright.
- */
-static int
-spider_net_download_firmware(struct spider_net_card *card,
-			     const void *firmware_ptr)
-{
-	int sequencer, i;
-	const u32 *fw_ptr = firmware_ptr;
-
-	/* stop sequencers */
-	spider_net_write_reg(card, SPIDER_NET_GSINIT,
-			     SPIDER_NET_STOP_SEQ_VALUE);
-
-	for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS;
-	     sequencer++) {
-		spider_net_write_reg(card,
-				     SPIDER_NET_GSnPRGADR + sequencer * 8, 0);
-		for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) {
-			spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT +
-					     sequencer * 8, *fw_ptr);
-			fw_ptr++;
-		}
-	}
-
-	if (spider_net_read_reg(card, SPIDER_NET_GSINIT))
-		return -EIO;
-
-	spider_net_write_reg(card, SPIDER_NET_GSINIT,
-			     SPIDER_NET_RUN_SEQ_VALUE);
-
-	return 0;
-}
-
-/**
- * spider_net_init_firmware - reads in firmware parts
- * @card: card structure
- *
- * Returns 0 on success, <0 on failure
- *
- * spider_net_init_firmware opens the sequencer firmware and does some basic
- * checks. This function opens and releases the firmware structure. A call
- * to download the firmware is performed before the release.
- *
- * Firmware format
- * ===============
- * spider_fw.bin is expected to be a file containing 6*1024*4 bytes, 4k being
- * the program for each sequencer. Use the command
- *    tail -q -n +2 Seq_code1_0x088.txt Seq_code2_0x090.txt              \
- *         Seq_code3_0x098.txt Seq_code4_0x0A0.txt Seq_code5_0x0A8.txt   \
- *         Seq_code6_0x0B0.txt | xxd -r -p -c4 > spider_fw.bin
- *
- * to generate spider_fw.bin, if you have sequencer programs with something
- * like the following contents for each sequencer:
- *    <ONE LINE COMMENT>
- *    <FIRST 4-BYTES-WORD FOR SEQUENCER>
- *    <SECOND 4-BYTES-WORD FOR SEQUENCER>
- *     ...
- *    <1024th 4-BYTES-WORD FOR SEQUENCER>
- */
-static int
-spider_net_init_firmware(struct spider_net_card *card)
-{
-	struct firmware *firmware = NULL;
-	struct device_node *dn;
-	const u8 *fw_prop = NULL;
-	int err = -ENOENT;
-	int fw_size;
-
-	if (request_firmware((const struct firmware **)&firmware,
-			     SPIDER_NET_FIRMWARE_NAME, &card->pdev->dev) == 0) {
-		if ( (firmware->size != SPIDER_NET_FIRMWARE_LEN) &&
-		     netif_msg_probe(card) ) {
-			dev_err(&card->netdev->dev,
-			       "Incorrect size of spidernet firmware in " \
-			       "filesystem. Looking in host firmware...\n");
-			goto try_host_fw;
-		}
-		err = spider_net_download_firmware(card, firmware->data);
-
-		release_firmware(firmware);
-		if (err)
-			goto try_host_fw;
-
-		goto done;
-	}
-
-try_host_fw:
-	dn = pci_device_to_OF_node(card->pdev);
-	if (!dn)
-		goto out_err;
-
-	fw_prop = of_get_property(dn, "firmware", &fw_size);
-	if (!fw_prop)
-		goto out_err;
-
-	if ( (fw_size != SPIDER_NET_FIRMWARE_LEN) &&
-	     netif_msg_probe(card) ) {
-		dev_err(&card->netdev->dev,
-		       "Incorrect size of spidernet firmware in host firmware\n");
-		goto done;
-	}
-
-	err = spider_net_download_firmware(card, fw_prop);
-
-done:
-	return err;
-out_err:
-	if (netif_msg_probe(card))
-		dev_err(&card->netdev->dev,
-		       "Couldn't find spidernet firmware in filesystem " \
-		       "or host firmware\n");
-	return err;
-}
-
-/**
- * spider_net_open - called upon ifonfig up
- * @netdev: interface device structure
- *
- * returns 0 on success, <0 on failure
- *
- * spider_net_open allocates all the descriptors and memory needed for
- * operation, sets up multicast list and enables interrupts
- */
-int
-spider_net_open(struct net_device *netdev)
-{
-	struct spider_net_card *card = netdev_priv(netdev);
-	int result;
-
-	result = spider_net_init_firmware(card);
-	if (result)
-		goto init_firmware_failed;
-
-	/* start probing with copper */
-	card->aneg_count = 0;
-	card->medium = BCM54XX_COPPER;
-	spider_net_setup_aneg(card);
-	if (card->phy.def->phy_id)
-		mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
-
-	result = spider_net_init_chain(card, &card->tx_chain);
-	if (result)
-		goto alloc_tx_failed;
-	card->low_watermark = NULL;
-
-	result = spider_net_init_chain(card, &card->rx_chain);
-	if (result)
-		goto alloc_rx_failed;
-
-	/* Allocate rx skbs */
-	result = spider_net_alloc_rx_skbs(card);
-	if (result)
-		goto alloc_skbs_failed;
-
-	spider_net_set_multi(netdev);
-
-	/* further enhancement: setup hw vlan, if needed */
-
-	result = -EBUSY;
-	if (request_irq(netdev->irq, spider_net_interrupt,
-			     IRQF_SHARED, netdev->name, netdev))
-		goto register_int_failed;
-
-	spider_net_enable_card(card);
-
-	netif_start_queue(netdev);
-	netif_carrier_on(netdev);
-	napi_enable(&card->napi);
-
-	spider_net_enable_interrupts(card);
-
-	return 0;
-
-register_int_failed:
-	spider_net_free_rx_chain_contents(card);
-alloc_skbs_failed:
-	spider_net_free_chain(card, &card->rx_chain);
-alloc_rx_failed:
-	spider_net_free_chain(card, &card->tx_chain);
-alloc_tx_failed:
-	del_timer_sync(&card->aneg_timer);
-init_firmware_failed:
-	return result;
-}
-
-/**
- * spider_net_link_phy
- * @t: timer context used to obtain the pointer to net card data structure
- */
-static void spider_net_link_phy(struct timer_list *t)
-{
-	struct spider_net_card *card = from_timer(card, t, aneg_timer);
-	struct mii_phy *phy = &card->phy;
-
-	/* if link didn't come up after SPIDER_NET_ANEG_TIMEOUT tries, setup phy again */
-	if (card->aneg_count > SPIDER_NET_ANEG_TIMEOUT) {
-
-		pr_debug("%s: link is down trying to bring it up\n",
-			 card->netdev->name);
-
-		switch (card->medium) {
-		case BCM54XX_COPPER:
-			/* enable fiber with autonegotiation first */
-			if (phy->def->ops->enable_fiber)
-				phy->def->ops->enable_fiber(phy, 1);
-			card->medium = BCM54XX_FIBER;
-			break;
-
-		case BCM54XX_FIBER:
-			/* fiber didn't come up, try to disable fiber autoneg */
-			if (phy->def->ops->enable_fiber)
-				phy->def->ops->enable_fiber(phy, 0);
-			card->medium = BCM54XX_UNKNOWN;
-			break;
-
-		case BCM54XX_UNKNOWN:
-			/* copper, fiber with and without failed,
-			 * retry from beginning
-			 */
-			spider_net_setup_aneg(card);
-			card->medium = BCM54XX_COPPER;
-			break;
-		}
-
-		card->aneg_count = 0;
-		mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
-		return;
-	}
-
-	/* link still not up, try again later */
-	if (!(phy->def->ops->poll_link(phy))) {
-		card->aneg_count++;
-		mod_timer(&card->aneg_timer, jiffies + SPIDER_NET_ANEG_TIMER);
-		return;
-	}
-
-	/* link came up, get abilities */
-	phy->def->ops->read_link(phy);
-
-	spider_net_write_reg(card, SPIDER_NET_GMACST,
-			     spider_net_read_reg(card, SPIDER_NET_GMACST));
-	spider_net_write_reg(card, SPIDER_NET_GMACINTEN, 0x4);
-
-	if (phy->speed == 1000)
-		spider_net_write_reg(card, SPIDER_NET_GMACMODE, 0x00000001);
-	else
-		spider_net_write_reg(card, SPIDER_NET_GMACMODE, 0);
-
-	card->aneg_count = 0;
-
-	pr_info("%s: link up, %i Mbps, %s-duplex %sautoneg.\n",
-		card->netdev->name, phy->speed,
-		phy->duplex == 1 ? "Full" : "Half",
-		phy->autoneg == 1 ? "" : "no ");
-}
-
-/**
- * spider_net_setup_phy - setup PHY
- * @card: card structure
- *
- * returns 0 on success, <0 on failure
- *
- * spider_net_setup_phy is used as part of spider_net_probe.
- **/
-static int
-spider_net_setup_phy(struct spider_net_card *card)
-{
-	struct mii_phy *phy = &card->phy;
-
-	spider_net_write_reg(card, SPIDER_NET_GDTDMASEL,
-			     SPIDER_NET_DMASEL_VALUE);
-	spider_net_write_reg(card, SPIDER_NET_GPCCTRL,
-			     SPIDER_NET_PHY_CTRL_VALUE);
-
-	phy->dev = card->netdev;
-	phy->mdio_read = spider_net_read_phy;
-	phy->mdio_write = spider_net_write_phy;
-
-	for (phy->mii_id = 1; phy->mii_id <= 31; phy->mii_id++) {
-		unsigned short id;
-		id = spider_net_read_phy(card->netdev, phy->mii_id, MII_BMSR);
-		if (id != 0x0000 && id != 0xffff) {
-			if (!sungem_phy_probe(phy, phy->mii_id)) {
-				pr_info("Found %s.\n", phy->def->name);
-				break;
-			}
-		}
-	}
-
-	return 0;
-}
-
-/**
- * spider_net_workaround_rxramfull - work around firmware bug
- * @card: card structure
- *
- * no return value
- **/
-static void
-spider_net_workaround_rxramfull(struct spider_net_card *card)
-{
-	int i, sequencer = 0;
-
-	/* cancel reset */
-	spider_net_write_reg(card, SPIDER_NET_CKRCTRL,
-			     SPIDER_NET_CKRCTRL_RUN_VALUE);
-
-	/* empty sequencer data */
-	for (sequencer = 0; sequencer < SPIDER_NET_FIRMWARE_SEQS;
-	     sequencer++) {
-		spider_net_write_reg(card, SPIDER_NET_GSnPRGADR +
-				     sequencer * 8, 0x0);
-		for (i = 0; i < SPIDER_NET_FIRMWARE_SEQWORDS; i++) {
-			spider_net_write_reg(card, SPIDER_NET_GSnPRGDAT +
-					     sequencer * 8, 0x0);
-		}
-	}
-
-	/* set sequencer operation */
-	spider_net_write_reg(card, SPIDER_NET_GSINIT, 0x000000fe);
-
-	/* reset */
-	spider_net_write_reg(card, SPIDER_NET_CKRCTRL,
-			     SPIDER_NET_CKRCTRL_STOP_VALUE);
-}
-
-/**
- * spider_net_stop - called upon ifconfig down
- * @netdev: interface device structure
- *
- * always returns 0
- */
-int
-spider_net_stop(struct net_device *netdev)
-{
-	struct spider_net_card *card = netdev_priv(netdev);
-
-	napi_disable(&card->napi);
-	netif_carrier_off(netdev);
-	netif_stop_queue(netdev);
-	del_timer_sync(&card->tx_timer);
-	del_timer_sync(&card->aneg_timer);
-
-	spider_net_disable_interrupts(card);
-
-	free_irq(netdev->irq, netdev);
-
-	spider_net_write_reg(card, SPIDER_NET_GDTDMACCNTR,
-			     SPIDER_NET_DMA_TX_FEND_VALUE);
-
-	/* turn off DMA, force end */
-	spider_net_disable_rxdmac(card);
-
-	/* release chains */
-	spider_net_release_tx_chain(card, 1);
-	spider_net_free_rx_chain_contents(card);
-
-	spider_net_free_chain(card, &card->tx_chain);
-	spider_net_free_chain(card, &card->rx_chain);
-
-	return 0;
-}
-
-/**
- * spider_net_tx_timeout_task - task scheduled by the watchdog timeout
- * function (to be called not under interrupt status)
- * @work: work context used to obtain the pointer to net card data structure
- *
- * called as task when tx hangs, resets interface (if interface is up)
- */
-static void
-spider_net_tx_timeout_task(struct work_struct *work)
-{
-	struct spider_net_card *card =
-		container_of(work, struct spider_net_card, tx_timeout_task);
-	struct net_device *netdev = card->netdev;
-
-	if (!(netdev->flags & IFF_UP))
-		goto out;
-
-	netif_device_detach(netdev);
-	spider_net_stop(netdev);
-
-	spider_net_workaround_rxramfull(card);
-	spider_net_init_card(card);
-
-	if (spider_net_setup_phy(card))
-		goto out;
-
-	spider_net_open(netdev);
-	spider_net_kick_tx_dma(card);
-	netif_device_attach(netdev);
-
-out:
-	atomic_dec(&card->tx_timeout_task_counter);
-}
-
-/**
- * spider_net_tx_timeout - called when the tx timeout watchdog kicks in.
- * @netdev: interface device structure
- * @txqueue: unused
- *
- * called, if tx hangs. Schedules a task that resets the interface
- */
-static void
-spider_net_tx_timeout(struct net_device *netdev, unsigned int txqueue)
-{
-	struct spider_net_card *card;
-
-	card = netdev_priv(netdev);
-	atomic_inc(&card->tx_timeout_task_counter);
-	if (netdev->flags & IFF_UP)
-		schedule_work(&card->tx_timeout_task);
-	else
-		atomic_dec(&card->tx_timeout_task_counter);
-	card->spider_stats.tx_timeouts++;
-}
-
-static const struct net_device_ops spider_net_ops = {
-	.ndo_open		= spider_net_open,
-	.ndo_stop		= spider_net_stop,
-	.ndo_start_xmit		= spider_net_xmit,
-	.ndo_set_rx_mode	= spider_net_set_multi,
-	.ndo_set_mac_address	= spider_net_set_mac,
-	.ndo_eth_ioctl		= spider_net_do_ioctl,
-	.ndo_tx_timeout		= spider_net_tx_timeout,
-	.ndo_validate_addr	= eth_validate_addr,
-	/* HW VLAN */
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	/* poll controller */
-	.ndo_poll_controller	= spider_net_poll_controller,
-#endif /* CONFIG_NET_POLL_CONTROLLER */
-};
-
-/**
- * spider_net_setup_netdev_ops - initialization of net_device operations
- * @netdev: net_device structure
- *
- * fills out function pointers in the net_device structure
- */
-static void
-spider_net_setup_netdev_ops(struct net_device *netdev)
-{
-	netdev->netdev_ops = &spider_net_ops;
-	netdev->watchdog_timeo = SPIDER_NET_WATCHDOG_TIMEOUT;
-	/* ethtool ops */
-	netdev->ethtool_ops = &spider_net_ethtool_ops;
-}
-
-/**
- * spider_net_setup_netdev - initialization of net_device
- * @card: card structure
- *
- * Returns 0 on success or <0 on failure
- *
- * spider_net_setup_netdev initializes the net_device structure
- **/
-static int
-spider_net_setup_netdev(struct spider_net_card *card)
-{
-	int result;
-	struct net_device *netdev = card->netdev;
-	struct device_node *dn;
-	struct sockaddr addr;
-	const u8 *mac;
-
-	SET_NETDEV_DEV(netdev, &card->pdev->dev);
-
-	pci_set_drvdata(card->pdev, netdev);
-
-	timer_setup(&card->tx_timer, spider_net_cleanup_tx_ring, 0);
-	netdev->irq = card->pdev->irq;
-
-	card->aneg_count = 0;
-	timer_setup(&card->aneg_timer, spider_net_link_phy, 0);
-
-	netif_napi_add(netdev, &card->napi, spider_net_poll);
-
-	spider_net_setup_netdev_ops(netdev);
-
-	netdev->hw_features = NETIF_F_RXCSUM | NETIF_F_IP_CSUM;
-	if (SPIDER_NET_RX_CSUM_DEFAULT)
-		netdev->features |= NETIF_F_RXCSUM;
-	netdev->features |= NETIF_F_IP_CSUM;
-	/* some time: NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
-	 *		NETIF_F_HW_VLAN_CTAG_FILTER
-	 */
-	netdev->lltx = true;
-
-	/* MTU range: 64 - 2294 */
-	netdev->min_mtu = SPIDER_NET_MIN_MTU;
-	netdev->max_mtu = SPIDER_NET_MAX_MTU;
-
-	netdev->irq = card->pdev->irq;
-	card->num_rx_ints = 0;
-	card->ignore_rx_ramfull = 0;
-
-	dn = pci_device_to_OF_node(card->pdev);
-	if (!dn)
-		return -EIO;
-
-	mac = of_get_property(dn, "local-mac-address", NULL);
-	if (!mac)
-		return -EIO;
-	memcpy(addr.sa_data, mac, ETH_ALEN);
-
-	result = spider_net_set_mac(netdev, &addr);
-	if ((result) && (netif_msg_probe(card)))
-		dev_err(&card->netdev->dev,
-		        "Failed to set MAC address: %i\n", result);
-
-	result = register_netdev(netdev);
-	if (result) {
-		if (netif_msg_probe(card))
-			dev_err(&card->netdev->dev,
-			        "Couldn't register net_device: %i\n", result);
-		return result;
-	}
-
-	if (netif_msg_probe(card))
-		pr_info("Initialized device %s.\n", netdev->name);
-
-	return 0;
-}
-
-/**
- * spider_net_alloc_card - allocates net_device and card structure
- *
- * returns the card structure or NULL in case of errors
- *
- * the card and net_device structures are linked to each other
- */
-static struct spider_net_card *
-spider_net_alloc_card(void)
-{
-	struct net_device *netdev;
-	struct spider_net_card *card;
-
-	netdev = alloc_etherdev(struct_size(card, darray,
-					    size_add(tx_descriptors, rx_descriptors)));
-	if (!netdev)
-		return NULL;
-
-	card = netdev_priv(netdev);
-	card->netdev = netdev;
-	card->msg_enable = SPIDER_NET_DEFAULT_MSG;
-	INIT_WORK(&card->tx_timeout_task, spider_net_tx_timeout_task);
-	init_waitqueue_head(&card->waitq);
-	atomic_set(&card->tx_timeout_task_counter, 0);
-
-	card->rx_chain.num_desc = rx_descriptors;
-	card->rx_chain.ring = card->darray;
-	card->tx_chain.num_desc = tx_descriptors;
-	card->tx_chain.ring = card->darray + rx_descriptors;
-
-	return card;
-}
-
-/**
- * spider_net_undo_pci_setup - releases PCI ressources
- * @card: card structure
- *
- * spider_net_undo_pci_setup releases the mapped regions
- */
-static void
-spider_net_undo_pci_setup(struct spider_net_card *card)
-{
-	iounmap(card->regs);
-	pci_release_regions(card->pdev);
-}
-
-/**
- * spider_net_setup_pci_dev - sets up the device in terms of PCI operations
- * @pdev: PCI device
- *
- * Returns the card structure or NULL if any errors occur
- *
- * spider_net_setup_pci_dev initializes pdev and together with the
- * functions called in spider_net_open configures the device so that
- * data can be transferred over it
- * The net_device structure is attached to the card structure, if the
- * function returns without error.
- **/
-static struct spider_net_card *
-spider_net_setup_pci_dev(struct pci_dev *pdev)
-{
-	struct spider_net_card *card;
-	unsigned long mmio_start, mmio_len;
-
-	if (pci_enable_device(pdev)) {
-		dev_err(&pdev->dev, "Couldn't enable PCI device\n");
-		return NULL;
-	}
-
-	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
-		dev_err(&pdev->dev,
-		        "Couldn't find proper PCI device base address.\n");
-		goto out_disable_dev;
-	}
-
-	if (pci_request_regions(pdev, spider_net_driver_name)) {
-		dev_err(&pdev->dev,
-		        "Couldn't obtain PCI resources, aborting.\n");
-		goto out_disable_dev;
-	}
-
-	pci_set_master(pdev);
-
-	card = spider_net_alloc_card();
-	if (!card) {
-		dev_err(&pdev->dev,
-		        "Couldn't allocate net_device structure, aborting.\n");
-		goto out_release_regions;
-	}
-	card->pdev = pdev;
-
-	/* fetch base address and length of first resource */
-	mmio_start = pci_resource_start(pdev, 0);
-	mmio_len = pci_resource_len(pdev, 0);
-
-	card->netdev->mem_start = mmio_start;
-	card->netdev->mem_end = mmio_start + mmio_len;
-	card->regs = ioremap(mmio_start, mmio_len);
-
-	if (!card->regs) {
-		dev_err(&pdev->dev,
-		        "Couldn't obtain PCI resources, aborting.\n");
-		goto out_release_regions;
-	}
-
-	return card;
-
-out_release_regions:
-	pci_release_regions(pdev);
-out_disable_dev:
-	pci_disable_device(pdev);
-	return NULL;
-}
-
-/**
- * spider_net_probe - initialization of a device
- * @pdev: PCI device
- * @ent: entry in the device id list
- *
- * Returns 0 on success, <0 on failure
- *
- * spider_net_probe initializes pdev and registers a net_device
- * structure for it. After that, the device can be ifconfig'ed up
- **/
-static int
-spider_net_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
-{
-	int err = -EIO;
-	struct spider_net_card *card;
-
-	card = spider_net_setup_pci_dev(pdev);
-	if (!card)
-		goto out;
-
-	spider_net_workaround_rxramfull(card);
-	spider_net_init_card(card);
-
-	err = spider_net_setup_phy(card);
-	if (err)
-		goto out_undo_pci;
-
-	err = spider_net_setup_netdev(card);
-	if (err)
-		goto out_undo_pci;
-
-	return 0;
-
-out_undo_pci:
-	spider_net_undo_pci_setup(card);
-	free_netdev(card->netdev);
-out:
-	return err;
-}
-
-/**
- * spider_net_remove - removal of a device
- * @pdev: PCI device
- *
- * Returns 0 on success, <0 on failure
- *
- * spider_net_remove is called to remove the device and unregisters the
- * net_device
- **/
-static void
-spider_net_remove(struct pci_dev *pdev)
-{
-	struct net_device *netdev;
-	struct spider_net_card *card;
-
-	netdev = pci_get_drvdata(pdev);
-	card = netdev_priv(netdev);
-
-	wait_event(card->waitq,
-		   atomic_read(&card->tx_timeout_task_counter) == 0);
-
-	unregister_netdev(netdev);
-
-	/* switch off card */
-	spider_net_write_reg(card, SPIDER_NET_CKRCTRL,
-			     SPIDER_NET_CKRCTRL_STOP_VALUE);
-	spider_net_write_reg(card, SPIDER_NET_CKRCTRL,
-			     SPIDER_NET_CKRCTRL_RUN_VALUE);
-
-	spider_net_undo_pci_setup(card);
-	free_netdev(netdev);
-}
-
-static struct pci_driver spider_net_driver = {
-	.name		= spider_net_driver_name,
-	.id_table	= spider_net_pci_tbl,
-	.probe		= spider_net_probe,
-	.remove		= spider_net_remove
-};
-
-/**
- * spider_net_init - init function when the driver is loaded
- *
- * spider_net_init registers the device driver
- */
-static int __init spider_net_init(void)
-{
-	printk(KERN_INFO "Spidernet version %s.\n", VERSION);
-
-	if (rx_descriptors < SPIDER_NET_RX_DESCRIPTORS_MIN) {
-		rx_descriptors = SPIDER_NET_RX_DESCRIPTORS_MIN;
-		pr_info("adjusting rx descriptors to %i.\n", rx_descriptors);
-	}
-	if (rx_descriptors > SPIDER_NET_RX_DESCRIPTORS_MAX) {
-		rx_descriptors = SPIDER_NET_RX_DESCRIPTORS_MAX;
-		pr_info("adjusting rx descriptors to %i.\n", rx_descriptors);
-	}
-	if (tx_descriptors < SPIDER_NET_TX_DESCRIPTORS_MIN) {
-		tx_descriptors = SPIDER_NET_TX_DESCRIPTORS_MIN;
-		pr_info("adjusting tx descriptors to %i.\n", tx_descriptors);
-	}
-	if (tx_descriptors > SPIDER_NET_TX_DESCRIPTORS_MAX) {
-		tx_descriptors = SPIDER_NET_TX_DESCRIPTORS_MAX;
-		pr_info("adjusting tx descriptors to %i.\n", tx_descriptors);
-	}
-
-	return pci_register_driver(&spider_net_driver);
-}
-
-/**
- * spider_net_cleanup - exit function when driver is unloaded
- *
- * spider_net_cleanup unregisters the device driver
- */
-static void __exit spider_net_cleanup(void)
-{
-	pci_unregister_driver(&spider_net_driver);
-}
-
-module_init(spider_net_init);
-module_exit(spider_net_cleanup);

drivers/net/ethernet/toshiba/spider_net.h

···
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Network device driver for Cell Processor-Based Blade and Celleb platform
- *
- * (C) Copyright IBM Corp. 2005
- * (C) Copyright 2006 TOSHIBA CORPORATION
- *
- * Authors : Utz Bacher <[e-mail]>
- *           Jens Osterkamp <[e-mail]>
- */
-
-#ifndef _SPIDER_NET_H
-#define _SPIDER_NET_H
-
-#define VERSION "2.0 B"
-
-#include <linux/sungem_phy.h>
-
-int spider_net_stop(struct net_device *netdev);
-int spider_net_open(struct net_device *netdev);
-
-extern const struct ethtool_ops spider_net_ethtool_ops;
-
-extern char spider_net_driver_name[];
-
-#define SPIDER_NET_MAX_FRAME			2312
-#define SPIDER_NET_MAX_MTU			2294
-#define SPIDER_NET_MIN_MTU			64
-
-#define SPIDER_NET_RXBUF_ALIGN			128
-
-#define SPIDER_NET_RX_DESCRIPTORS_DEFAULT	256
-#define SPIDER_NET_RX_DESCRIPTORS_MIN		16
-#define SPIDER_NET_RX_DESCRIPTORS_MAX		512
-
-#define SPIDER_NET_TX_DESCRIPTORS_DEFAULT	256
-#define SPIDER_NET_TX_DESCRIPTORS_MIN		16
-#define SPIDER_NET_TX_DESCRIPTORS_MAX		512
-
-#define SPIDER_NET_TX_TIMER			(HZ/5)
-#define SPIDER_NET_ANEG_TIMER			(HZ)
-#define SPIDER_NET_ANEG_TIMEOUT			5
-
-#define SPIDER_NET_RX_CSUM_DEFAULT		1
-
-#define SPIDER_NET_WATCHDOG_TIMEOUT		50*HZ
-
-#define SPIDER_NET_FIRMWARE_SEQS	6
-#define SPIDER_NET_FIRMWARE_SEQWORDS	1024
-#define SPIDER_NET_FIRMWARE_LEN		(SPIDER_NET_FIRMWARE_SEQS * \
-					 SPIDER_NET_FIRMWARE_SEQWORDS * \
-					 sizeof(u32))
-#define SPIDER_NET_FIRMWARE_NAME	"spider_fw.bin"
-
-/** spider_net SMMIO registers */
-#define SPIDER_NET_GHIINT0STS		0x00000000
-#define SPIDER_NET_GHIINT1STS		0x00000004
-#define SPIDER_NET_GHIINT2STS		0x00000008
-#define SPIDER_NET_GHIINT0MSK		0x00000010
-#define SPIDER_NET_GHIINT1MSK		0x00000014
-#define SPIDER_NET_GHIINT2MSK		0x00000018
-
-#define SPIDER_NET_GRESUMINTNUM		0x00000020
-#define SPIDER_NET_GREINTNUM		0x00000024
-
-#define SPIDER_NET_GFFRMNUM		0x00000028
-#define SPIDER_NET_GFAFRMNUM		0x0000002c
-#define SPIDER_NET_GFBFRMNUM		0x00000030
-#define SPIDER_NET_GFCFRMNUM		0x00000034
-#define SPIDER_NET_GFDFRMNUM		0x00000038
-
-/* clear them (don't use it) */
-#define SPIDER_NET_GFREECNNUM		0x0000003c
-#define SPIDER_NET_GONETIMENUM		0x00000040
-
-#define SPIDER_NET_GTOUTFRMNUM		0x00000044
-
-#define SPIDER_NET_GTXMDSET		0x00000050
-#define SPIDER_NET_GPCCTRL		0x00000054
-#define SPIDER_NET_GRXMDSET		0x00000058
-#define SPIDER_NET_GIPSECINIT		0x0000005c
-#define SPIDER_NET_GFTRESTRT		0x00000060
-#define SPIDER_NET_GRXDMAEN		0x00000064
-#define SPIDER_NET_GMRWOLCTRL		0x00000068
-#define SPIDER_NET_GPCWOPCMD		0x0000006c
-#define SPIDER_NET_GPCROPCMD		0x00000070
-#define SPIDER_NET_GTTFRMCNT		0x00000078
-#define SPIDER_NET_GTESTMD		0x0000007c
-
-#define SPIDER_NET_GSINIT		0x00000080
-#define SPIDER_NET_GSnPRGADR		0x00000084
-#define SPIDER_NET_GSnPRGDAT		0x00000088
-
-#define SPIDER_NET_GMACOPEMD		0x00000100
-#define SPIDER_NET_GMACLENLMT		0x00000108
-#define SPIDER_NET_GMACST		0x00000110
-#define SPIDER_NET_GMACINTEN		0x00000118
-#define SPIDER_NET_GMACPHYCTRL		0x00000120
-
-#define SPIDER_NET_GMACAPAUSE		0x00000154
-#define SPIDER_NET_GMACTXPAUSE		0x00000164
-
-#define SPIDER_NET_GMACMODE		0x000001b0
-#define SPIDER_NET_GMACBSTLMT		0x000001b4
-
-#define SPIDER_NET_GMACUNIMACU		0x000001c0
-#define SPIDER_NET_GMACUNIMACL		0x000001c8
-
-#define SPIDER_NET_GMRMHFILnR		0x00000400
-#define SPIDER_NET_MULTICAST_HASHES	256
-
-#define SPIDER_NET_GMRUAFILnR		0x00000500
-#define SPIDER_NET_GMRUA0FIL15R		0x00000578
-
-#define SPIDER_NET_GTTQMSK		0x00000934
-
-/* RX DMA controller registers, all 0x00000a.. are for DMA controller A,
- * 0x00000b.. for DMA controller B, etc. */
-#define SPIDER_NET_GDADCHA		0x00000a00
-#define SPIDER_NET_GDADMACCNTR		0x00000a04
-#define SPIDER_NET_GDACTDPA		0x00000a08
-#define SPIDER_NET_GDACTDCNT		0x00000a0c
-#define SPIDER_NET_GDACDBADDR		0x00000a20
-#define SPIDER_NET_GDACDBSIZE		0x00000a24
-#define SPIDER_NET_GDACNEXTDA		0x00000a28
-#define SPIDER_NET_GDACCOMST		0x00000a2c
-#define SPIDER_NET_GDAWBCOMST		0x00000a30
-#define SPIDER_NET_GDAWBRSIZE		0x00000a34
-#define SPIDER_NET_GDAWBVSIZE		0x00000a38
-#define SPIDER_NET_GDAWBTRST		0x00000a3c
-#define SPIDER_NET_GDAWBTRERR		0x00000a40
-
-/* TX DMA controller registers */
-#define SPIDER_NET_GDTDCHA		0x00000e00
-#define SPIDER_NET_GDTDMACCNTR		0x00000e04
-#define SPIDER_NET_GDTCDPA		0x00000e08
-#define SPIDER_NET_GDTDMASEL		0x00000e14
-
-#define SPIDER_NET_ECMODE		0x00000f00
-/* clock and reset control register */
-#define SPIDER_NET_CKRCTRL		0x00000ff0
-
-/** SCONFIG registers */
-#define SPIDER_NET_SCONFIG_IOACTE	0x00002810
-
-/** interrupt mask registers */
-#define SPIDER_NET_INT0_MASK_VALUE	0x3f7fe2c7
-#define SPIDER_NET_INT1_MASK_VALUE	0x0000fff2
-#define SPIDER_NET_INT2_MASK_VALUE	0x000003f1
-
-/* we rely on flagged descriptor interrupts */
-#define SPIDER_NET_FRAMENUM_VALUE	0x00000000
-/* set this first, then the FRAMENUM_VALUE */
-#define SPIDER_NET_GFXFRAMES_VALUE	0x00000000
-
-#define SPIDER_NET_STOP_SEQ_VALUE	0x00000000
-#define SPIDER_NET_RUN_SEQ_VALUE	0x0000007e
-
-#define SPIDER_NET_PHY_CTRL_VALUE	0x00040040
-/* #define SPIDER_NET_PHY_CTRL_VALUE	0x01070080*/
-#define SPIDER_NET_RXMODE_VALUE		0x00000011
-/* auto retransmission in case of MAC aborts */
-#define SPIDER_NET_TXMODE_VALUE		0x00010000
-#define SPIDER_NET_RESTART_VALUE	0x00000000
-#define SPIDER_NET_WOL_VALUE		0x00001111
-#if 0
-#define SPIDER_NET_WOL_VALUE		0x00000000
-#endif
-#define SPIDER_NET_IPSECINIT_VALUE	0x6f716f71
-
-/* pause frames: automatic, no upper retransmission count */
-/* outside loopback mode: ETOMOD signal dont matter, not connected */
-/* ETOMOD signal is brought to PHY reset. bit 2 must be 1 in Celleb */
-#define SPIDER_NET_OPMODE_VALUE		0x00000067
-/*#define SPIDER_NET_OPMODE_VALUE		0x001b0062*/
-#define SPIDER_NET_LENLMT_VALUE		0x00000908
-
-#define SPIDER_NET_MACAPAUSE_VALUE	0x00000800 /* about 1 ms */
-#define SPIDER_NET_TXPAUSE_VALUE	0x00000000
-
-#define SPIDER_NET_MACMODE_VALUE	0x00000001
-#define SPIDER_NET_BURSTLMT_VALUE	0x00000200 /* about 16 us */
-
-/* DMAC control register GDMACCNTR
- *
- * 1(0)				enable r/tx dma
- *  0000000				fixed to 0
- *
- *         000000			fixed to 0
- *               0(1)			en/disable descr writeback on force end
- *                0(1)			force end
- *
- *                 000000		fixed to 0
- *                       00		burst alignment: 128 bytes
- *                       11		burst alignment: 1024 bytes
- *
- *                         00000	fixed to 0
- *                              0	descr writeback size 32 bytes
- *                               0(1)	descr chain end interrupt enable
- *                                0(1)	descr status writeback enable */
-
-/* to set RX_DMA_EN */
-#define SPIDER_NET_DMA_RX_VALUE		0x80000000
-#define SPIDER_NET_DMA_RX_FEND_VALUE	0x00030003
-/* to set TX_DMA_EN */
-#define SPIDER_NET_TX_DMA_EN           0x80000000
-#define SPIDER_NET_GDTBSTA             0x00000300
-#define SPIDER_NET_GDTDCEIDIS          0x00000002
-#define SPIDER_NET_DMA_TX_VALUE        SPIDER_NET_TX_DMA_EN | \
-                                       SPIDER_NET_GDTDCEIDIS | \
-                                       SPIDER_NET_GDTBSTA
-
-#define SPIDER_NET_DMA_TX_FEND_VALUE	0x00030003
-
-/* SPIDER_NET_UA_DESCR_VALUE is OR'ed with the unicast address */
-#define SPIDER_NET_UA_DESCR_VALUE	0x00080000
-#define SPIDER_NET_PROMISC_VALUE	0x00080000
-#define SPIDER_NET_NONPROMISC_VALUE	0x00000000
-
-#define SPIDER_NET_DMASEL_VALUE		0x00000001
-
-#define SPIDER_NET_ECMODE_VALUE		0x00000000
-
-#define SPIDER_NET_CKRCTRL_RUN_VALUE	0x1fff010f
-#define SPIDER_NET_CKRCTRL_STOP_VALUE	0x0000010f
-
-#define SPIDER_NET_SBIMSTATE_VALUE	0x00000000
-#define SPIDER_NET_SBTMSTATE_VALUE	0x00000000
-
-/* SPIDER_NET_GHIINT0STS bits, in reverse order so that they can be used
- * with 1 << SPIDER_NET_... */
-enum spider_net_int0_status {
-	SPIDER_NET_GPHYINT = 0,
-	SPIDER_NET_GMAC2INT,
-	SPIDER_NET_GMAC1INT,
-	SPIDER_NET_GIPSINT,
-	SPIDER_NET_GFIFOINT,
-	SPIDER_NET_GDMACINT,
-	SPIDER_NET_GSYSINT,
-	SPIDER_NET_GPWOPCMPINT,
-	SPIDER_NET_GPROPCMPINT,
-	SPIDER_NET_GPWFFINT,
-	SPIDER_NET_GRMDADRINT,
-	SPIDER_NET_GRMARPINT,
-	SPIDER_NET_GRMMPINT,
-	SPIDER_NET_GDTDEN0INT,
-	SPIDER_NET_GDDDEN0INT,
-	SPIDER_NET_GDCDEN0INT,
-	SPIDER_NET_GDBDEN0INT,
-	SPIDER_NET_GDADEN0INT,
-	SPIDER_NET_GDTFDCINT,
-	SPIDER_NET_GDDFDCINT,
-	SPIDER_NET_GDCFDCINT,
-	SPIDER_NET_GDBFDCINT,
-	SPIDER_NET_GDAFDCINT,
-	SPIDER_NET_GTTEDINT,
-	SPIDER_NET_GDTDCEINT,
-	SPIDER_NET_GRFDNMINT,
-	SPIDER_NET_GRFCNMINT,
-	SPIDER_NET_GRFBNMINT,
-	SPIDER_NET_GRFANMINT,
-	SPIDER_NET_GRFNMINT,
-	SPIDER_NET_G1TMCNTINT,
-	SPIDER_NET_GFREECNTINT
-};
-/* GHIINT1STS bits */
-enum spider_net_int1_status {
-	SPIDER_NET_GTMFLLINT = 0,
-	SPIDER_NET_GRMFLLINT,
-	SPIDER_NET_GTMSHTINT,
-	SPIDER_NET_GDTINVDINT,
-	SPIDER_NET_GRFDFLLINT,
-	SPIDER_NET_GDDDCEINT,
-	SPIDER_NET_GDDINVDINT,
-	SPIDER_NET_GRFCFLLINT,
-	SPIDER_NET_GDCDCEINT,
-	SPIDER_NET_GDCINVDINT,
-	SPIDER_NET_GRFBFLLINT,
-	SPIDER_NET_GDBDCEINT,
-	SPIDER_NET_GDBINVDINT,
-	SPIDER_NET_GRFAFLLINT,
-	SPIDER_NET_GDADCEINT,
-	SPIDER_NET_GDAINVDINT,
-	SPIDER_NET_GDTRSERINT,
-	SPIDER_NET_GDDRSERINT,
-	SPIDER_NET_GDCRSERINT,
-	SPIDER_NET_GDBRSERINT,
-	SPIDER_NET_GDARSERINT,
-	SPIDER_NET_GDSERINT,
-	SPIDER_NET_GDTPTERINT,
-	SPIDER_NET_GDDPTERINT,
-	SPIDER_NET_GDCPTERINT,
-	SPIDER_NET_GDBPTERINT,
-	SPIDER_NET_GDAPTERINT
-};
-/* GHIINT2STS bits */
-enum spider_net_int2_status {
-	SPIDER_NET_GPROPERINT = 0,
-	SPIDER_NET_GMCTCRSNGINT,
-	SPIDER_NET_GMCTLCOLINT,
-	SPIDER_NET_GMCTTMOTINT,
-	SPIDER_NET_GMCRCAERINT,
-	SPIDER_NET_GMCRCALERINT,
-	SPIDER_NET_GMCRALNERINT,
-	SPIDER_NET_GMCROVRINT,
-	SPIDER_NET_GMCRRNTINT,
-	SPIDER_NET_GMCRRXERINT,
-	SPIDER_NET_GTITCSERINT,
-	SPIDER_NET_GTIFMTERINT,
-	SPIDER_NET_GTIPKTRVKINT,
-	SPIDER_NET_GTISPINGINT,
-	SPIDER_NET_GTISADNGINT,
-	SPIDER_NET_GTISPDNGINT,
-	SPIDER_NET_GRIFMTERINT,
-	SPIDER_NET_GRIPKTRVKINT,
-	SPIDER_NET_GRISPINGINT,
-	SPIDER_NET_GRISADNGINT,
-	SPIDER_NET_GRISPDNGINT
-};
-
-#define SPIDER_NET_TXINT	(1 << SPIDER_NET_GDTFDCINT)
-
-/* We rely on flagged descriptor interrupts */
-#define SPIDER_NET_RXINT	( (1 << SPIDER_NET_GDAFDCINT) )
-
-#define SPIDER_NET_LINKINT	( 1 << SPIDER_NET_GMAC2INT )
-
-#define SPIDER_NET_ERRINT	( 0xffffffff & \
-				  (~SPIDER_NET_TXINT) & \
-				  (~SPIDER_NET_RXINT) & \
-				  (~SPIDER_NET_LINKINT) )
-
-#define SPIDER_NET_GPREXEC			0x80000000
-#define SPIDER_NET_GPRDAT_MASK			0x0000ffff
-
-#define SPIDER_NET_DMAC_NOINTR_COMPLETE		0x00800000
-#define SPIDER_NET_DMAC_TXFRMTL		0x00040000
-#define SPIDER_NET_DMAC_TCP			0x00020000
-#define SPIDER_NET_DMAC_UDP			0x00030000
-#define SPIDER_NET_TXDCEST			0x08000000
-
-#define SPIDER_NET_DESCR_RXFDIS        0x00000001
-#define SPIDER_NET_DESCR_RXDCEIS       0x00000002
-#define SPIDER_NET_DESCR_RXDEN0IS      0x00000004
-#define SPIDER_NET_DESCR_RXINVDIS      0x00000008
-#define SPIDER_NET_DESCR_RXRERRIS      0x00000010
-#define SPIDER_NET_DESCR_RXFDCIMS      0x00000100
-#define SPIDER_NET_DESCR_RXDCEIMS      0x00000200
-#define SPIDER_NET_DESCR_RXDEN0IMS     0x00000400
-#define SPIDER_NET_DESCR_RXINVDIMS     0x00000800
-#define SPIDER_NET_DESCR_RXRERRMIS     0x00001000
-#define SPIDER_NET_DESCR_UNUSED        0x077fe0e0
-
-#define SPIDER_NET_DESCR_IND_PROC_MASK		0xF0000000
-#define SPIDER_NET_DESCR_COMPLETE		0x00000000 /* used in rx and tx */
-#define SPIDER_NET_DESCR_RESPONSE_ERROR		0x10000000 /* used in rx and tx */
-#define SPIDER_NET_DESCR_PROTECTION_ERROR	0x20000000 /* used in rx and tx */
-#define SPIDER_NET_DESCR_FRAME_END		0x40000000 /* used in rx */
-#define SPIDER_NET_DESCR_FORCE_END		0x50000000 /* used in rx and tx */
-#define SPIDER_NET_DESCR_CARDOWNED		0xA0000000 /* used in rx and tx */
-#define SPIDER_NET_DESCR_NOT_IN_USE		0xF0000000
-#define SPIDER_NET_DESCR_TXDESFLG		0x00800000
-
-#define SPIDER_NET_DESCR_BAD_STATUS   (SPIDER_NET_DESCR_RXDEN0IS | \
-                                       SPIDER_NET_DESCR_RXRERRIS | \
-                                       SPIDER_NET_DESCR_RXDEN0IMS | \
-                                       SPIDER_NET_DESCR_RXINVDIMS | \
-                                       SPIDER_NET_DESCR_RXRERRMIS | \
-                                       SPIDER_NET_DESCR_UNUSED)
-
-/* Descriptor, as defined by the hardware */
-struct spider_net_hw_descr {
-	u32 buf_addr;
-	u32 buf_size;
-	u32 next_descr_addr;
-	u32 dmac_cmd_status;
-	u32 result_size;
-	u32 valid_size;	/* all zeroes for tx */
-	u32 data_status;
-	u32 data_error;	/* all zeroes for tx */
-} __attribute__((aligned(32)));
-
-struct spider_net_descr {
-	struct spider_net_hw_descr *hwdescr;
-	struct sk_buff *skb;
-	u32 bus_addr;
-	struct spider_net_descr *next;
-	struct spider_net_descr *prev;
-};
-
-struct spider_net_descr_chain {
-	spinlock_t lock;
-	struct spider_net_descr *head;
-	struct spider_net_descr *tail;
-	struct spider_net_descr *ring;
-	int num_desc;
-	struct spider_net_hw_descr *hwring;
-	dma_addr_t dma_addr;
-};
-
-/* descriptor data_status bits */
-#define SPIDER_NET_RX_IPCHK		29
-#define SPIDER_NET_RX_TCPCHK		28
-#define SPIDER_NET_VLAN_PACKET		21
-#define SPIDER_NET_DATA_STATUS_CKSUM_MASK ( (1 << SPIDER_NET_RX_IPCHK) | \
-					  (1 << SPIDER_NET_RX_TCPCHK) )
-
-/* descriptor data_error bits */
-#define SPIDER_NET_RX_IPCHKERR		27
-#define SPIDER_NET_RX_RXTCPCHKERR	28
-
-#define SPIDER_NET_DATA_ERR_CKSUM_MASK	(1 << SPIDER_NET_RX_IPCHKERR)
-
-/* the cases we don't pass the packet to the stack.
- * 701b8000 would be correct, but every packets gets that flag */
-#define SPIDER_NET_DESTROY_RX_FLAGS	0x700b8000
-
-#define SPIDER_NET_DEFAULT_MSG		( NETIF_MSG_DRV | \
-					  NETIF_MSG_PROBE | \
-					  NETIF_MSG_LINK | \
-					  NETIF_MSG_TIMER | \
-					  NETIF_MSG_IFDOWN | \
-					  NETIF_MSG_IFUP | \
-					  NETIF_MSG_RX_ERR | \
-					  NETIF_MSG_TX_ERR | \
-					  NETIF_MSG_TX_QUEUED | \
-					  NETIF_MSG_INTR | \
-					  NETIF_MSG_TX_DONE | \
-					  NETIF_MSG_RX_STATUS | \
-					  NETIF_MSG_PKTDATA | \
-					  NETIF_MSG_HW | \
-					  NETIF_MSG_WOL )
-
-struct spider_net_extra_stats {
-	unsigned long rx_desc_error;
-	unsigned long tx_timeouts;
-	unsigned long alloc_rx_skb_error;
-	unsigned long rx_iommu_map_error;
-	unsigned long tx_iommu_map_error;
-	unsigned long rx_desc_unk_state;
-};
-
-struct spider_net_card {
-	struct net_device *netdev;
-	struct pci_dev *pdev;
-	struct mii_phy phy;
-
-	struct napi_struct napi;
-
-	int medium;
-
-	void __iomem *regs;
-
-	struct spider_net_descr_chain tx_chain;
-	struct spider_net_descr_chain rx_chain;
-	struct spider_net_descr *low_watermark;
-
-	int aneg_count;
-	struct timer_list aneg_timer;
-	struct timer_list tx_timer;
-	struct work_struct tx_timeout_task;
-	atomic_t tx_timeout_task_counter;
-	wait_queue_head_t waitq;
-	int num_rx_ints;
-	int ignore_rx_ramfull;
-
-	/* for ethtool */
-	int msg_enable;
-	struct spider_net_extra_stats spider_stats;
-
-	/* Must be last item in struct */
-	struct spider_net_descr darray[];
-};
-
-#endif

drivers/net/ethernet/toshiba/spider_net_ethtool.c

···
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Network device driver for Cell Processor-Based Blade
- *
- * (C) Copyright IBM Corp. 2005
- *
- * Authors : Utz Bacher <[e-mail]>
- *           Jens Osterkamp <[e-mail]>
- */
-
-#include <linux/netdevice.h>
-#include <linux/ethtool.h>
-#include <linux/pci.h>
-
-#include "spider_net.h"
-
-
-static struct {
-	const char str[ETH_GSTRING_LEN];
-} ethtool_stats_keys[] = {
-	{ "tx_packets" },
-	{ "tx_bytes" },
-	{ "rx_packets" },
-	{ "rx_bytes" },
-	{ "tx_errors" },
-	{ "tx_dropped" },
-	{ "rx_dropped" },
-	{ "rx_descriptor_error" },
-	{ "tx_timeouts" },
-	{ "alloc_rx_skb_error" },
-	{ "rx_iommu_map_error" },
-	{ "tx_iommu_map_error" },
-	{ "rx_desc_unk_state" },
-};
-
-static int
-spider_net_ethtool_get_link_ksettings(struct net_device *netdev,
-				      struct ethtool_link_ksettings *cmd)
-{
-	struct spider_net_card *card;
-	card = netdev_priv(netdev);
-
-	ethtool_link_ksettings_zero_link_mode(cmd, supported);
-	ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
-	ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
-
-	ethtool_link_ksettings_zero_link_mode(cmd, advertising);
-	ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
-	ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
-
-	cmd->base.port = PORT_FIBRE;
-	cmd->base.speed = card->phy.speed;
-	cmd->base.duplex = DUPLEX_FULL;
-
-	return 0;
-}
-
-static void
-spider_net_ethtool_get_drvinfo(struct net_device *netdev,
-			       struct ethtool_drvinfo *drvinfo)
-{
-	struct spider_net_card *card;
-	card = netdev_priv(netdev);
-
-	/* clear and fill out info */
-	strscpy(drvinfo->driver, spider_net_driver_name,
-		sizeof(drvinfo->driver));
-	strscpy(drvinfo->version, VERSION, sizeof(drvinfo->version));
-	strscpy(drvinfo->fw_version, "no information",
-		sizeof(drvinfo->fw_version));
-	strscpy(drvinfo->bus_info, pci_name(card->pdev),
-		sizeof(drvinfo->bus_info));
-}
-
-static void
-spider_net_ethtool_get_wol(struct net_device *netdev,
-			   struct ethtool_wolinfo *wolinfo)
-{
-	/* no support for wol */
-	wolinfo->supported = 0;
-	wolinfo->wolopts = 0;
-}
-
-static u32
-spider_net_ethtool_get_msglevel(struct net_device *netdev)
-{
-	struct spider_net_card *card;
-	card = netdev_priv(netdev);
-	return card->msg_enable;
-}
-
-static void
-spider_net_ethtool_set_msglevel(struct net_device *netdev,
-				u32 level)
-{
-	struct spider_net_card *card;
-	card = netdev_priv(netdev);
-	card->msg_enable = level;
-}
-
-static int
-spider_net_ethtool_nway_reset(struct net_device *netdev)
-{
-	if (netif_running(netdev)) {
-		spider_net_stop(netdev);
-		spider_net_open(netdev);
-	}
-	return 0;
-}
-
-static void
-spider_net_ethtool_get_ringparam(struct net_device *netdev,
-				 struct ethtool_ringparam *ering,
-				 struct kernel_ethtool_ringparam *kernel_ering,
-				 struct netlink_ext_ack *extack)
-{
-	struct spider_net_card *card = netdev_priv(netdev);
-
-	ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
-	ering->tx_pending = card->tx_chain.num_desc;
-	ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
-	ering->rx_pending = card->rx_chain.num_desc;
-}
-
-static int spider_net_get_sset_count(struct net_device *netdev, int sset)
-{
-	switch (sset) {
-	case ETH_SS_STATS:
-		return ARRAY_SIZE(ethtool_stats_keys);
-	default:
-		return -EOPNOTSUPP;
-	}
-}
-
-static void spider_net_get_ethtool_stats(struct net_device *netdev,
-		struct ethtool_stats *stats, u64 *data)
-{
-	struct spider_net_card *card = netdev_priv(netdev);
-
-	data[0] = netdev->stats.tx_packets;
-	data[1] = netdev->stats.tx_bytes;
-	data[2] = netdev->stats.rx_packets;
-	data[3] = netdev->stats.rx_bytes;
-	data[4] = netdev->stats.tx_errors;
-	data[5] = netdev->stats.tx_dropped;
-	data[6] = netdev->stats.rx_dropped;
-	data[7] = card->spider_stats.rx_desc_error;
-	data[8] = card->spider_stats.tx_timeouts;
-	data[9] = card->spider_stats.alloc_rx_skb_error;
-	data[10] = card->spider_stats.rx_iommu_map_error;
-	data[11] = card->spider_stats.tx_iommu_map_error;
-	data[12] = card->spider_stats.rx_desc_unk_state;
-}
-
-static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
-				   u8 *data)
-{
-	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
-}
-
-const struct ethtool_ops spider_net_ethtool_ops = {
-	.get_drvinfo		= spider_net_ethtool_get_drvinfo,
-	.get_wol		= spider_net_ethtool_get_wol,
-	.get_msglevel		= spider_net_ethtool_get_msglevel,
-	.set_msglevel		= spider_net_ethtool_set_msglevel,
-	.get_link		= ethtool_op_get_link,
-	.nway_reset		= spider_net_ethtool_nway_reset,
-	.get_ringparam          = spider_net_ethtool_get_ringparam,
-	.get_strings		= spider_net_get_strings,
-	.get_sset_count		= spider_net_get_sset_count,
-	.get_ethtool_stats	= spider_net_get_ethtool_stats,
-	.get_link_ksettings	= spider_net_ethtool_get_link_ksettings,
-};
-

kernel/irq/Kconfig

···
 config HARDIRQS_SW_RESEND
        bool
 
-# Edge style eoi based handler (cell)
-config IRQ_EDGE_EOI_HANDLER
-       bool
-
 # Generic configurable interrupt chip implementation
 config GENERIC_IRQ_CHIP
        bool

kernel/irq/chip.c

···
 }
 EXPORT_SYMBOL(handle_edge_irq);
 
-#ifdef CONFIG_IRQ_EDGE_EOI_HANDLER
-/**
- *	handle_edge_eoi_irq - edge eoi type IRQ handler
- *	@desc:	the interrupt description structure for this irq
- *
- * Similar as the above handle_edge_irq, but using eoi and w/o the
- * mask/unmask logic.
- */
-void handle_edge_eoi_irq(struct irq_desc *desc)
-{
-	struct irq_chip *chip = irq_desc_get_chip(desc);
-
-	raw_spin_lock(&desc->lock);
-
-	desc->istate &= ~(IRQS_REPLAY | IRQS_WAITING);
-
-	if (!irq_may_run(desc)) {
-		desc->istate |= IRQS_PENDING;
-		goto out_eoi;
-	}
-
-	/*
-	 * If its disabled or no action available then mask it and get
-	 * out of here.
-	 */
-	if (irqd_irq_disabled(&desc->irq_data) || !desc->action) {
-		desc->istate |= IRQS_PENDING;
-		goto out_eoi;
-	}
-
-	kstat_incr_irqs_this_cpu(desc);
-
-	do {
-		if (unlikely(!desc->action))
-			goto out_eoi;
-
-		handle_irq_event(desc);
-
-	} while ((desc->istate & IRQS_PENDING) &&
-		 !irqd_irq_disabled(&desc->irq_data));
-
-out_eoi:
-	chip->irq_eoi(&desc->irq_data);
-	raw_spin_unlock(&desc->lock);
-}
-#endif
-
 /**
  *	handle_percpu_irq - Per CPU local irq handler
  *	@desc:	the interrupt description structure for this irq

kernel/static_call_inline.c

···
 				continue;
 			}
 
-			arch_static_call_transform(site_addr, NULL, func,
+			arch_static_call_transform(site_addr, tramp, func,
 						   static_call_is_tail(site));
 		}
 	}

tools/objtool/arch/powerpc/decode.c

···
 
 	switch (opcode) {
 	case 18: /* b[l][a] */
-		if ((ins & 3) == 1) /* bl */
+		if (ins == 0x48000005)	/* bl .+4 */
+			typ = INSN_OTHER;
+		else if (ins & 1)	/* bl[a] */
 			typ = INSN_CALL;
+		else		/* b[a] */
+			typ = INSN_JUMP_UNCONDITIONAL;
 
 		imm = ins & 0x3fffffc;
 		if (imm & 0x2000000)
 			imm -= 0x4000000;
+		imm |= ins & 2;	/* AA flag */
 		break;
 	}
 
···
 
 unsigned long arch_jump_destination(struct instruction *insn)
 {
+	if (insn->immediate & 2)
+		return insn->immediate & ~2;
+
 	return insn->offset + insn->immediate;
 }
 

tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p10.c

···
 {
 	struct event *e, events[5];
 	int i;
+	int pvr = PVR_VER(mfspr(SPRN_PVR));
 
 	/* Check for platform support for the test */
 	SKIP_IF(platform_check_for_tests());
···
 	 * code and using PVR will work correctly for all cases
 	 * including generic compat mode.
 	 */
-	SKIP_IF(PVR_VER(mfspr(SPRN_PVR)) != POWER10);
+	SKIP_IF((pvr != POWER10) && (pvr != POWER11));
 
 	SKIP_IF(check_for_generic_compat_pmu());
 

tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c

···
 static int generic_events_valid_test(void)
 {
 	struct event event;
+	int pvr = mfspr(SPRN_PVR);
 
 	/* Check for platform support for the test */
 	SKIP_IF(platform_check_for_tests());
···
 	 * - PERF_COUNT_HW_STALLED_CYCLES_BACKEND
 	 * - PERF_COUNT_HW_REF_CPU_CYCLES
 	 */
-	if (PVR_VER(mfspr(SPRN_PVR)) == POWER10) {
+	if ((pvr == POWER10) || (pvr == POWER11)) {
 		event_init_opts(&event, PERF_COUNT_HW_CPU_CYCLES, PERF_TYPE_HARDWARE, "event");
 		FAIL_IF(event_open(&event));
 		event_close(&event);

tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c

···
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on power10
+	 * This test is only aplicable on ISA v3.1
 	 */
 	SKIP_IF(platform_check_for_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));

tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c

···
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is aplicable on power10 only.
+	 * This test is aplicable on ISA v3.1 only.
 	 */
 	SKIP_IF(platform_check_for_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));

tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c

···
 /*
  * Testcase for group constraint check of thresh_cmp bits which is
  * used to program thresh compare field in Monitor Mode Control Register A
- * (MMCRA: 9-18 bits for power9 and MMCRA: 8-18 bits for power10).
+ * (MMCRA: 9-18 bits for power9 and MMCRA: 8-18 bits for power10/power11).
  * All events in the group should match thresh compare bits otherwise
  * event_open for the group will fail.
  */

tools/testing/selftests/powerpc/pmu/event_code_tests/invalid_event_code_test.c

···
  * Some of the bits in the event code is
  * reserved for specific platforms.
  * Event code bits 52-59 are reserved in power9,
- * whereas in power10, these are used for programming
+ * whereas in ISA v3.1, these are used for programming
  * Monitor Mode Control Register 3 (MMCR3).
  * Bit 9 in event code is reserved in power9,
  * whereas it is used for programming "radix_scope_qual"
···
 
 	/*
 	 * Events using MMCR3 bits and radix scope qual bits
-	 * should fail in power9 and should succeed in power10.
+	 * should fail in power9 and should succeed in power10 ( ISA v3.1 )
 	 * Init the events and check for pass/fail in event open.
 	 */
 	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1)) {

tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_sample_elig_mode_test.c

···
 static int reserved_bits_mmcra_sample_elig_mode(void)
 {
 	struct event event;
+	int pvr = PVR_VER(mfspr(SPRN_PVR));
 
 	/* Check for platform support for the test */
 	SKIP_IF(platform_check_for_tests());
···
 
 	/*
 	 * MMCRA Random Sampling Mode (SM) value 0x10
-	 * is reserved in power10 and 0xC is reserved in
+	 * is reserved in power10/power11 and 0xC is reserved in
 	 * power9.
 	 */
-	if (PVR_VER(mfspr(SPRN_PVR)) == POWER10) {
+	if ((pvr == POWER10) || (pvr == POWER11)) {
 		event_init(&event, 0x100401e0);
 		FAIL_IF(!event_open(&event));
 	} else if (PVR_VER(mfspr(SPRN_PVR)) == POWER9) {

tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile

···
 		   mmcr3_src_test mmcra_thresh_marked_sample_test mmcra_thresh_cmp_test \
 		   mmcra_bhrb_ind_call_test mmcra_bhrb_any_test mmcra_bhrb_cond_test \
 		   mmcra_bhrb_disable_test bhrb_no_crash_wo_pmu_test intr_regs_no_crash_wo_pmu_test \
-		   bhrb_filter_map_test mmcr1_sel_unit_cache_test mmcra_bhrb_disable_no_branch_test
+		   bhrb_filter_map_test mmcr1_sel_unit_cache_test mmcra_bhrb_disable_no_branch_test \
+		   check_extended_reg_test
 
 top_srcdir = ../../../../../..
 include ../../../lib.mk

tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c

···
  * A perf sampling test to check bhrb filter
  * map. All the branch filters are not supported
  * in powerpc. Supported filters in:
- * power10: any, any_call, ind_call, cond
+ * power10/power11: any, any_call, ind_call, cond
  * power9: any, any_call
  *
  * Testcase checks event open for invalid bhrb filter
···
  */
 
 /* Invalid types for powerpc */
-/* Valid bhrb filters in power9/power10 */
+/* Valid bhrb filters in power9/power10/power11 */
 int bhrb_filter_map_valid_common[] = {
 	PERF_SAMPLE_BRANCH_ANY,
 	PERF_SAMPLE_BRANCH_ANY_CALL,
 };
 
-/* Valid bhrb filters in power10 */
+/* Valid bhrb filters in power10/power11 */
 int bhrb_filter_map_valid_p10[] = {
 	PERF_SAMPLE_BRANCH_IND_CALL,
 	PERF_SAMPLE_BRANCH_COND,
···
 		FAIL_IF(!event_open(&event));
 	}
 
-	/* valid filter maps for power9/power10 which are expected to pass in event_open */
+	/* valid filter maps for power9/power10/power11 which are expected to pass in event_open */
 	for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_common); i++) {
 		event.attr.branch_sample_type = bhrb_filter_map_valid_common[i];
 		FAIL_IF(event_open(&event));
···
 	}
 
 	/*
-	 * filter maps which are valid in power10 and invalid in power9.
+	 * filter maps which are valid in power10/power11 and invalid in power9.
 	 * PVR check is used here since PMU specific data like bhrb filter
 	 * alternative tests is handled by respective PMU driver code and
 	 * using PVR will work correctly for all cases including generic
 	 * compat mode.
 	 */
-	if (PVR_VER(mfspr(SPRN_PVR)) == POWER10) {
+	switch (PVR_VER(mfspr(SPRN_PVR))) {
+	case POWER11:
+	case POWER10:
 		for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_p10); i++) {
 			event.attr.branch_sample_type = bhrb_filter_map_valid_p10[i];
 			FAIL_IF(event_open(&event));
 			event_close(&event);
 		}
-	} else {
+		break;
+	default:
 		for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_p10); i++) {
 			event.attr.branch_sample_type = bhrb_filter_map_valid_p10[i];
 			FAIL_IF(!event_open(&event));

tools/testing/selftests/powerpc/pmu/sampling_tests/check_extended_reg_test.c

···
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2024, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * A perf sampling test to check extended
+ * reg support.
+ */
+static int check_extended_reg_test(void)
+{
+	/* Check for platform support for the test */
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00));
+
+	 /* Skip for Generic compat PMU */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/* Check if platform supports extended regs */
+	platform_extended_mask = perf_get_platform_reg_mask();
+	FAIL_IF(check_extended_regs_support());
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(check_extended_reg_test, "check_extended_reg_test");
+}

tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c

···
 	ev_shift_thd_stop = 32;
 
 	switch (pvr) {
+	case POWER11:
 	case POWER10:
 		ev_mask_thd_cmp = 0x3ffff;
 		ev_shift_thd_cmp = 0;
···
 }
 
 /* Return the extended regs mask value */
-static u64 perf_get_platform_reg_mask(void)
+u64 perf_get_platform_reg_mask(void)
 {
 	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
 		return PERF_POWER10_MASK;
···
 	 * Check for supported platforms
 	 * for sampling test
 	 */
-	if ((pvr != POWER10) && (pvr != POWER9))
+	switch (pvr) {
+	case POWER11:
+	case POWER10:
+	case POWER9:
+		break;
+	default:
 		goto out;
+	}
 
 	/*
 	 * Check PMU driver registered by looking for
···
  * Utility function to check for generic compat PMU
  * by comparing base_platform value from auxv and real
  * PVR value.
+ * auxv_base_platform() func gives information of "base platform"
+ * corresponding to PVR value. Incase, if the distro doesn't
+ * support platform PVR (missing cputable support), base platform
+ * in auxv will have a default value other than the real PVR's.
+ * In this case, ISAv3 PMU (generic compat PMU) will be registered
+ * in the system. auxv_generic_compat_pmu() makes use of the base
+ * platform value from auxv to do this check.
  */
 static bool auxv_generic_compat_pmu(void)
 {
···
 		base_pvr = POWER9;
 	else if (!strcmp(auxv_base_platform(), "power10"))
 		base_pvr = POWER10;
+	else if (!strcmp(auxv_base_platform(), "power11"))
+		base_pvr = POWER11;
 
 	return (!base_pvr);
 }

tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h

···
 #include <sys/stat.h>
 #include "../event.h"
 
+#define POWER11 0x82
 #define POWER10 0x80
 #define POWER9  0x4e
 #define PERF_POWER9_MASK        0x7f8ffffffffffff
 #define PERF_POWER10_MASK       0x7ffffffffffffff
+#define PERF_POWER11_MASK       PERF_POWER10_MASK
 
 #define MMCR0_FC56      0x00000010UL /* freeze counters 5 and 6 */
 #define MMCR0_PMCCEXT   0x00000200UL /* PMCCEXT control */
···
 extern u64 platform_extended_mask;
 extern int check_pvr_for_sampling_tests(void);
 extern int platform_check_for_tests(void);
+extern int check_extended_regs_support(void);
+extern u64 perf_get_platform_reg_mask(void);
 
 /*
  * Event code field extraction macro.
···
 
 static inline int get_mmcr2_l2l3(u64 mmcr2, int pmc)
 {
-	if (pvr == POWER10)
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
 		return ((mmcr2 & 0xf8) >> 3);
 	return 0;
 }
 
 static inline int get_mmcr3_src(u64 mmcr3, int pmc)
 {
-	if (pvr != POWER10)
+	if (!have_hwcap2(PPC_FEATURE2_ARCH_3_1))
 		return 0;
 	return ((mmcr3 >> ((49 - (15 * ((pmc) - 1))))) & 0x7fff);
 }
 
 static inline int get_mmcra_thd_cmp(u64 mmcra, int pmc)
 {
-	if (pvr == POWER10)
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
 		return ((mmcra >> 45) & 0x7ff);
 	return ((mmcra >> 45) & 0x3ff);
 }
···
 
 static inline u64 get_mmcra_bhrb_disable(u64 mmcra, int pmc)
 {
-	if (pvr == POWER10)
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
 		return mmcra & BHRB_DISABLE;
 	return 0;
 }

tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c

···
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on power10
+	 * This test is only aplicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));

tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c

···
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on power10
+	 * This test is only aplicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));

tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c

···
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on power10
+	 * This test is only aplicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));

tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c

···
 
 	/*
 	 * Check for platform support for the test.
-	 * This test is only aplicable on power10
+	 * This test is only aplicable on ISA v3.1
 	 */
 	SKIP_IF(check_pvr_for_sampling_tests());
 	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));