tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
metag: Build infrastructure
Add metag build infrastructure.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
+1124
+277
arch/metag/Kconfig
+277
arch/metag/Kconfig
···
1
+
config SYMBOL_PREFIX
2
+
string
3
+
default "_"
4
+
5
+
config METAG
6
+
def_bool y
7
+
select EMBEDDED
8
+
select GENERIC_ATOMIC64
9
+
select GENERIC_CLOCKEVENTS
10
+
select GENERIC_IRQ_SHOW
11
+
select GENERIC_SIGALTSTACK
12
+
select GENERIC_SMP_IDLE_THREAD
13
+
select HAVE_64BIT_ALIGNED_ACCESS
14
+
select HAVE_ARCH_TRACEHOOK
15
+
select HAVE_DEBUG_KMEMLEAK
16
+
select HAVE_GENERIC_HARDIRQS
17
+
select HAVE_IRQ_WORK
18
+
select HAVE_KERNEL_BZIP2
19
+
select HAVE_KERNEL_GZIP
20
+
select HAVE_KERNEL_LZO
21
+
select HAVE_KERNEL_XZ
22
+
select HAVE_MEMBLOCK
23
+
select HAVE_MEMBLOCK_NODE_MAP
24
+
select HAVE_MOD_ARCH_SPECIFIC
25
+
select HAVE_SYSCALL_TRACEPOINTS
26
+
select IRQ_DOMAIN
27
+
select MODULES_USE_ELF_RELA
28
+
select OF
29
+
select OF_EARLY_FLATTREE
30
+
select SPARSE_IRQ
31
+
32
+
config ARCH_NO_VIRT_TO_BUS
33
+
def_bool y
34
+
35
+
config STACKTRACE_SUPPORT
36
+
def_bool y
37
+
38
+
config LOCKDEP_SUPPORT
39
+
def_bool y
40
+
41
+
config HAVE_LATENCYTOP_SUPPORT
42
+
def_bool y
43
+
44
+
config RWSEM_GENERIC_SPINLOCK
45
+
def_bool y
46
+
47
+
config RWSEM_XCHGADD_ALGORITHM
48
+
bool
49
+
50
+
config GENERIC_HWEIGHT
51
+
def_bool y
52
+
53
+
config GENERIC_CALIBRATE_DELAY
54
+
def_bool y
55
+
56
+
config GENERIC_GPIO
57
+
def_bool n
58
+
59
+
config NO_IOPORT
60
+
def_bool y
61
+
62
+
source "init/Kconfig"
63
+
64
+
source "kernel/Kconfig.freezer"
65
+
66
+
menu "Processor type and features"
67
+
68
+
config MMU
69
+
def_bool y
70
+
71
+
config STACK_GROWSUP
72
+
def_bool y
73
+
74
+
config HOTPLUG_CPU
75
+
bool "Enable CPU hotplug support"
76
+
depends on SMP
77
+
help
78
+
Say Y here to allow turning CPUs off and on. CPUs can be
79
+
controlled through /sys/devices/system/cpu.
80
+
81
+
Say N if you want to disable CPU hotplug.
82
+
83
+
config HIGHMEM
84
+
bool "High Memory Support"
85
+
help
86
+
The address space of Meta processors is only 4 Gigabytes large
87
+
and it has to accommodate user address space, kernel address
88
+
space as well as some memory mapped IO. That means that, if you
89
+
have a large amount of physical memory and/or IO, not all of the
90
+
memory can be "permanently mapped" by the kernel. The physical
91
+
memory that is not permanently mapped is called "high memory".
92
+
93
+
Depending on the selected kernel/user memory split, minimum
94
+
vmalloc space and actual amount of RAM, you may not need this
95
+
option which should result in a slightly faster kernel.
96
+
97
+
If unsure, say n.
98
+
99
+
source "arch/metag/mm/Kconfig"
100
+
101
+
source "arch/metag/Kconfig.soc"
102
+
103
+
config METAG_META12
104
+
bool
105
+
help
106
+
Select this from the SoC config symbol to indicate that it contains a
107
+
Meta 1.2 core.
108
+
109
+
config METAG_META21
110
+
bool
111
+
help
112
+
Select this from the SoC config symbol to indicate that it contains a
113
+
Meta 2.1 core.
114
+
115
+
config SMP
116
+
bool "Symmetric multi-processing support"
117
+
depends on METAG_META21 && METAG_META21_MMU
118
+
select USE_GENERIC_SMP_HELPERS
119
+
help
120
+
This enables support for systems with more than one thread running
121
+
Linux. If you have a system with only one thread running Linux,
122
+
say N. Otherwise, say Y.
123
+
124
+
config NR_CPUS
125
+
int "Maximum number of CPUs (2-4)" if SMP
126
+
range 2 4 if SMP
127
+
default "1" if !SMP
128
+
default "4" if SMP
129
+
130
+
config METAG_SMP_WRITE_REORDERING
131
+
bool
132
+
help
133
+
This attempts to prevent cache-memory incoherence due to external
134
+
reordering of writes from different hardware threads when SMP is
135
+
enabled. It adds fences (system event 0) to smp_mb and smp_rmb in an
136
+
attempt to catch some of the cases, and also before writes to shared
137
+
memory in LOCK1 protected atomics and spinlocks.
138
+
This will not completely prevent cache incoherency on affected cores.
139
+
140
+
config METAG_LNKGET_AROUND_CACHE
141
+
bool
142
+
depends on METAG_META21
143
+
help
144
+
This indicates that the LNKGET/LNKSET instructions go around the
145
+
cache, which requires some extra cache flushes when the memory needs
146
+
to be accessed by normal GET/SET instructions too.
147
+
148
+
choice
149
+
prompt "Atomicity primitive"
150
+
default METAG_ATOMICITY_LNKGET
151
+
help
152
+
This option selects the mechanism for performing atomic operations.
153
+
154
+
config METAG_ATOMICITY_IRQSOFF
155
+
depends on !SMP
156
+
bool "irqsoff"
157
+
help
158
+
This option disables interrupts to achieve atomicity. This mechanism
159
+
is not SMP-safe.
160
+
161
+
config METAG_ATOMICITY_LNKGET
162
+
depends on METAG_META21
163
+
bool "lnkget/lnkset"
164
+
help
165
+
This option uses the LNKGET and LNKSET instructions to achieve
166
+
atomicity. LNKGET/LNKSET are load-link/store-conditional instructions.
167
+
Choose this option if your system requires low latency.
168
+
169
+
config METAG_ATOMICITY_LOCK1
170
+
depends on SMP
171
+
bool "lock1"
172
+
help
173
+
This option uses the LOCK1 instruction for atomicity. This is mainly
174
+
provided as a debugging aid if the lnkget/lnkset atomicity primitive
175
+
isn't working properly.
176
+
177
+
endchoice
178
+
179
+
config METAG_FPU
180
+
bool "FPU Support"
181
+
depends on METAG_META21
182
+
default y
183
+
help
184
+
This option allows processes to use FPU hardware available with this
185
+
CPU. If this option is not enabled FPU registers will not be saved
186
+
and restored on context-switch.
187
+
188
+
If you plan on running programs which are compiled to use hard floats
189
+
say Y here.
190
+
191
+
config METAG_DSP
192
+
bool "DSP Support"
193
+
help
194
+
This option allows processes to use DSP hardware available
195
+
with this CPU. If this option is not enabled DSP registers
196
+
will not be saved and restored on context-switch.
197
+
198
+
If you plan on running DSP programs say Y here.
199
+
200
+
config METAG_PERFCOUNTER_IRQS
201
+
bool "PerfCounters interrupt support"
202
+
depends on METAG_META21
203
+
help
204
+
This option enables using interrupts to collect information from
205
+
Performance Counters. This option is supported in new META21
206
+
(starting from HTP265).
207
+
208
+
When disabled, Performance Counters information will be collected
209
+
based on Timer Interrupt.
210
+
211
+
menu "Boot options"
212
+
213
+
config METAG_BUILTIN_DTB
214
+
bool "Embed DTB in kernel image"
215
+
default y
216
+
help
217
+
Embeds a device tree binary in the kernel image.
218
+
219
+
config METAG_BUILTIN_DTB_NAME
220
+
string "Built in DTB"
221
+
depends on METAG_BUILTIN_DTB
222
+
help
223
+
Set the name of the DTB to embed (leave blank to pick one
224
+
automatically based on kernel configuration).
225
+
226
+
config CMDLINE_BOOL
227
+
bool "Default bootloader kernel arguments"
228
+
229
+
config CMDLINE
230
+
string "Kernel command line"
231
+
depends on CMDLINE_BOOL
232
+
help
233
+
On some architectures there is currently no way for the boot loader
234
+
to pass arguments to the kernel. For these architectures, you should
235
+
supply some command-line options at build time by entering them
236
+
here.
237
+
238
+
config CMDLINE_FORCE
239
+
bool "Force default kernel command string"
240
+
depends on CMDLINE_BOOL
241
+
help
242
+
Set this to have arguments from the default kernel command string
243
+
override those passed by the boot loader.
244
+
245
+
endmenu
246
+
247
+
source "kernel/Kconfig.preempt"
248
+
249
+
source kernel/Kconfig.hz
250
+
251
+
endmenu
252
+
253
+
menu "Power management options"
254
+
255
+
source kernel/power/Kconfig
256
+
257
+
endmenu
258
+
259
+
menu "Executable file formats"
260
+
261
+
source "fs/Kconfig.binfmt"
262
+
263
+
endmenu
264
+
265
+
source "net/Kconfig"
266
+
267
+
source "drivers/Kconfig"
268
+
269
+
source "fs/Kconfig"
270
+
271
+
source "arch/metag/Kconfig.debug"
272
+
273
+
source "security/Kconfig"
274
+
275
+
source "crypto/Kconfig"
276
+
277
+
source "lib/Kconfig"
+40
arch/metag/Kconfig.debug
+40
arch/metag/Kconfig.debug
···
1
+
menu "Kernel hacking"
2
+
3
+
config TRACE_IRQFLAGS_SUPPORT
4
+
bool
5
+
default y
6
+
7
+
source "lib/Kconfig.debug"
8
+
9
+
config DEBUG_STACKOVERFLOW
10
+
bool "Check for stack overflows"
11
+
depends on DEBUG_KERNEL
12
+
help
13
+
This option will cause messages to be printed if free stack space
14
+
drops below a certain limit.
15
+
16
+
config 4KSTACKS
17
+
bool "Use 4Kb for kernel stacks instead of 8Kb"
18
+
depends on DEBUG_KERNEL
19
+
help
20
+
If you say Y here the kernel will use a 4Kb stacksize for the
21
+
kernel stack attached to each process/thread. This facilitates
22
+
running more threads on a system and also reduces the pressure
23
+
on the VM subsystem for higher order allocations. This option
24
+
will also use IRQ stacks to compensate for the reduced stackspace.
25
+
26
+
config METAG_FUNCTION_TRACE
27
+
bool "Output Meta real-time trace data for function entry/exit"
28
+
help
29
+
If you say Y here the kernel will use the Meta hardware trace
30
+
unit to output information about function entry and exit that
31
+
can be used by a debugger for profiling and call-graphs.
32
+
33
+
config METAG_POISON_CATCH_BUFFERS
34
+
bool "Poison catch buffer contents on kernel entry"
35
+
help
36
+
If you say Y here the kernel will write poison data to the
37
+
catch buffer registers on kernel entry. This will make any
38
+
problem with catch buffer handling much more apparent.
39
+
40
+
endmenu
+55
arch/metag/Kconfig.soc
+55
arch/metag/Kconfig.soc
···
1
+
choice
2
+
prompt "SoC Type"
3
+
default META21_FPGA
4
+
5
+
config META12_FPGA
6
+
bool "Meta 1.2 FPGA"
7
+
select METAG_META12
8
+
help
9
+
This is a Meta 1.2 FPGA bitstream, just a bare CPU.
10
+
11
+
config META21_FPGA
12
+
bool "Meta 2.1 FPGA"
13
+
select METAG_META21
14
+
help
15
+
This is a Meta 2.1 FPGA bitstream, just a bare CPU.
16
+
17
+
endchoice
18
+
19
+
menu "SoC configuration"
20
+
21
+
if METAG_META21
22
+
23
+
# Meta 2.x specific options
24
+
25
+
config METAG_META21_MMU
26
+
bool "Meta 2.x MMU mode"
27
+
default y
28
+
help
29
+
Use the Meta 2.x MMU in extended mode.
30
+
31
+
config METAG_UNALIGNED
32
+
bool "Meta 2.x unaligned access checking"
33
+
default y
34
+
help
35
+
All memory accesses will be checked for alignment and an exception
36
+
raised on unaligned accesses. This feature does cost performance
37
+
but without it there will be no notification of this type of error.
38
+
39
+
config METAG_USER_TCM
40
+
bool "Meta on-chip memory support for userland"
41
+
select GENERIC_ALLOCATOR
42
+
default y
43
+
help
44
+
Allow the on-chip memories of Meta SoCs to be used by user
45
+
applications.
46
+
47
+
endif
48
+
49
+
config METAG_HALT_ON_PANIC
50
+
bool "Halt the core on panic"
51
+
help
52
+
Halt the core when a panic occurs. This is useful when running
53
+
pre-production silicon or in an FPGA environment.
54
+
55
+
endmenu
+87
arch/metag/Makefile
+87
arch/metag/Makefile
···
1
+
#
2
+
# metag/Makefile
3
+
#
4
+
# This file is included by the global makefile so that you can add your own
5
+
# architecture-specific flags and dependencies. Remember to do have actions
6
+
# for "archclean" cleaning up for this architecture.
7
+
#
8
+
# This file is subject to the terms and conditions of the GNU General Public
9
+
# License. See the file "COPYING" in the main directory of this archive
10
+
# for more details.
11
+
#
12
+
# Copyright (C) 1994 by Linus Torvalds
13
+
# 2007,2008,2012 by Imagination Technologies Ltd.
14
+
#
15
+
16
+
LDFLAGS :=
17
+
OBJCOPYFLAGS := -O binary -R .note -R .comment -S
18
+
19
+
checkflags-$(CONFIG_METAG_META12) += -DMETAC_1_2
20
+
checkflags-$(CONFIG_METAG_META21) += -DMETAC_2_1
21
+
CHECKFLAGS += -D__metag__ $(checkflags-y)
22
+
23
+
KBUILD_DEFCONFIG := meta2_defconfig
24
+
25
+
sflags-$(CONFIG_METAG_META12) += -mmetac=1.2
26
+
ifeq ($(CONFIG_METAG_META12),y)
27
+
# Only use TBI API 1.4 if DSP is enabled for META12 cores
28
+
sflags-$(CONFIG_METAG_DSP) += -DTBI_1_4
29
+
endif
30
+
sflags-$(CONFIG_METAG_META21) += -mmetac=2.1 -DTBI_1_4
31
+
32
+
cflags-$(CONFIG_METAG_FUNCTION_TRACE) += -mhwtrace-leaf -mhwtrace-retpc
33
+
cflags-$(CONFIG_METAG_META21) += -mextensions=bex
34
+
35
+
KBUILD_CFLAGS += -pipe
36
+
KBUILD_CFLAGS += -ffunction-sections
37
+
38
+
KBUILD_CFLAGS += $(sflags-y) $(cflags-y)
39
+
KBUILD_AFLAGS += $(sflags-y)
40
+
41
+
LDFLAGS_vmlinux := $(ldflags-y)
42
+
43
+
head-y := arch/metag/kernel/head.o
44
+
45
+
core-y += arch/metag/boot/dts/
46
+
core-y += arch/metag/kernel/
47
+
core-y += arch/metag/mm/
48
+
49
+
libs-y += arch/metag/lib/
50
+
libs-y += arch/metag/tbx/
51
+
52
+
boot := arch/metag/boot
53
+
54
+
boot_targets += uImage
55
+
boot_targets += uImage.gz
56
+
boot_targets += uImage.bz2
57
+
boot_targets += uImage.xz
58
+
boot_targets += uImage.lzo
59
+
boot_targets += uImage.bin
60
+
boot_targets += vmlinux.bin
61
+
62
+
PHONY += $(boot_targets)
63
+
64
+
all: vmlinux.bin
65
+
66
+
$(boot_targets): vmlinux
67
+
$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
68
+
69
+
%.dtb %.dtb.S %.dtb.o: scripts
70
+
$(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@
71
+
72
+
dtbs: scripts
73
+
$(Q)$(MAKE) $(build)=$(boot)/dts dtbs
74
+
75
+
archclean:
76
+
$(Q)$(MAKE) $(clean)=$(boot)
77
+
78
+
define archhelp
79
+
echo '* vmlinux.bin - Binary kernel image (arch/$(ARCH)/boot/vmlinux.bin)'
80
+
@echo ' uImage - Alias to bootable U-Boot image'
81
+
@echo ' uImage.bin - Kernel-only image for U-Boot (bin)'
82
+
@echo ' uImage.gz - Kernel-only image for U-Boot (gzip)'
83
+
@echo ' uImage.bz2 - Kernel-only image for U-Boot (bzip2)'
84
+
@echo ' uImage.xz - Kernel-only image for U-Boot (xz)'
85
+
@echo ' uImage.lzo - Kernel-only image for U-Boot (lzo)'
86
+
@echo ' dtbs - Build device tree blobs for enabled boards'
87
+
endef
+68
arch/metag/boot/Makefile
+68
arch/metag/boot/Makefile
···
1
+
#
2
+
# This file is subject to the terms and conditions of the GNU General Public
3
+
# License. See the file "COPYING" in the main directory of this archive
4
+
# for more details.
5
+
#
6
+
# Copyright (C) 2007,2012 Imagination Technologies Ltd.
7
+
#
8
+
9
+
suffix-y := bin
10
+
suffix-$(CONFIG_KERNEL_GZIP) := gz
11
+
suffix-$(CONFIG_KERNEL_BZIP2) := bz2
12
+
suffix-$(CONFIG_KERNEL_XZ) := xz
13
+
suffix-$(CONFIG_KERNEL_LZO) := lzo
14
+
15
+
targets += vmlinux.bin
16
+
targets += uImage
17
+
targets += uImage.gz
18
+
targets += uImage.bz2
19
+
targets += uImage.xz
20
+
targets += uImage.lzo
21
+
targets += uImage.bin
22
+
23
+
extra-y += vmlinux.bin
24
+
extra-y += vmlinux.bin.gz
25
+
extra-y += vmlinux.bin.bz2
26
+
extra-y += vmlinux.bin.xz
27
+
extra-y += vmlinux.bin.lzo
28
+
29
+
UIMAGE_LOADADDR = $(CONFIG_PAGE_OFFSET)
30
+
31
+
ifeq ($(CONFIG_FUNCTION_TRACER),y)
32
+
orig_cflags := $(KBUILD_CFLAGS)
33
+
KBUILD_CFLAGS = $(subst -pg, , $(orig_cflags))
34
+
endif
35
+
36
+
$(obj)/vmlinux.bin: vmlinux FORCE
37
+
$(call if_changed,objcopy)
38
+
39
+
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
40
+
$(call if_changed,gzip)
41
+
42
+
$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
43
+
$(call if_changed,bzip2)
44
+
45
+
$(obj)/vmlinux.bin.xz: $(obj)/vmlinux.bin FORCE
46
+
$(call if_changed,xzkern)
47
+
48
+
$(obj)/vmlinux.bin.lzo: $(obj)/vmlinux.bin FORCE
49
+
$(call if_changed,lzo)
50
+
51
+
$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE
52
+
$(call if_changed,uimage,gzip)
53
+
54
+
$(obj)/uImage.bz2: $(obj)/vmlinux.bin.bz2 FORCE
55
+
$(call if_changed,uimage,bzip2)
56
+
57
+
$(obj)/uImage.xz: $(obj)/vmlinux.bin.xz FORCE
58
+
$(call if_changed,uimage,xz)
59
+
60
+
$(obj)/uImage.lzo: $(obj)/vmlinux.bin.lzo FORCE
61
+
$(call if_changed,uimage,lzo)
62
+
63
+
$(obj)/uImage.bin: $(obj)/vmlinux.bin FORCE
64
+
$(call if_changed,uimage,none)
65
+
66
+
$(obj)/uImage: $(obj)/uImage.$(suffix-y)
67
+
@ln -sf $(notdir $<) $@
68
+
@echo ' Image $@ is ready'
+38
arch/metag/configs/meta1_defconfig
+38
arch/metag/configs/meta1_defconfig
···
1
+
CONFIG_EXPERIMENTAL=y
2
+
# CONFIG_LOCALVERSION_AUTO is not set
3
+
# CONFIG_SWAP is not set
4
+
CONFIG_LOG_BUF_SHIFT=13
5
+
CONFIG_SYSFS_DEPRECATED=y
6
+
CONFIG_SYSFS_DEPRECATED_V2=y
7
+
CONFIG_KALLSYMS_ALL=y
8
+
# CONFIG_ELF_CORE is not set
9
+
CONFIG_SLAB=y
10
+
# CONFIG_BLK_DEV_BSG is not set
11
+
CONFIG_PARTITION_ADVANCED=y
12
+
# CONFIG_MSDOS_PARTITION is not set
13
+
# CONFIG_IOSCHED_DEADLINE is not set
14
+
# CONFIG_IOSCHED_CFQ is not set
15
+
CONFIG_FLATMEM_MANUAL=y
16
+
CONFIG_META12_FPGA=y
17
+
CONFIG_HZ_100=y
18
+
CONFIG_DEVTMPFS=y
19
+
CONFIG_DEVTMPFS_MOUNT=y
20
+
# CONFIG_STANDALONE is not set
21
+
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
22
+
# CONFIG_FW_LOADER is not set
23
+
CONFIG_BLK_DEV_RAM=y
24
+
CONFIG_BLK_DEV_RAM_COUNT=1
25
+
CONFIG_BLK_DEV_RAM_SIZE=16384
26
+
# CONFIG_INPUT is not set
27
+
# CONFIG_SERIO is not set
28
+
# CONFIG_VT is not set
29
+
# CONFIG_LEGACY_PTYS is not set
30
+
# CONFIG_DEVKMEM is not set
31
+
# CONFIG_HW_RANDOM is not set
32
+
# CONFIG_HWMON is not set
33
+
# CONFIG_USB_SUPPORT is not set
34
+
# CONFIG_DNOTIFY is not set
35
+
CONFIG_TMPFS=y
36
+
# CONFIG_MISC_FILESYSTEMS is not set
37
+
# CONFIG_SCHED_DEBUG is not set
38
+
CONFIG_DEBUG_INFO=y
+39
arch/metag/configs/meta2_defconfig
+39
arch/metag/configs/meta2_defconfig
···
1
+
CONFIG_EXPERIMENTAL=y
2
+
# CONFIG_LOCALVERSION_AUTO is not set
3
+
# CONFIG_SWAP is not set
4
+
CONFIG_SYSVIPC=y
5
+
CONFIG_LOG_BUF_SHIFT=13
6
+
CONFIG_SYSFS_DEPRECATED=y
7
+
CONFIG_SYSFS_DEPRECATED_V2=y
8
+
CONFIG_KALLSYMS_ALL=y
9
+
# CONFIG_ELF_CORE is not set
10
+
CONFIG_SLAB=y
11
+
# CONFIG_BLK_DEV_BSG is not set
12
+
CONFIG_PARTITION_ADVANCED=y
13
+
# CONFIG_MSDOS_PARTITION is not set
14
+
# CONFIG_IOSCHED_DEADLINE is not set
15
+
# CONFIG_IOSCHED_CFQ is not set
16
+
CONFIG_METAG_L2C=y
17
+
CONFIG_FLATMEM_MANUAL=y
18
+
CONFIG_METAG_HALT_ON_PANIC=y
19
+
CONFIG_HZ_100=y
20
+
CONFIG_DEVTMPFS=y
21
+
# CONFIG_STANDALONE is not set
22
+
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
23
+
# CONFIG_FW_LOADER is not set
24
+
CONFIG_BLK_DEV_RAM=y
25
+
CONFIG_BLK_DEV_RAM_COUNT=1
26
+
CONFIG_BLK_DEV_RAM_SIZE=16384
27
+
# CONFIG_INPUT is not set
28
+
# CONFIG_SERIO is not set
29
+
# CONFIG_VT is not set
30
+
# CONFIG_LEGACY_PTYS is not set
31
+
# CONFIG_DEVKMEM is not set
32
+
# CONFIG_HW_RANDOM is not set
33
+
# CONFIG_HWMON is not set
34
+
# CONFIG_USB_SUPPORT is not set
35
+
# CONFIG_DNOTIFY is not set
36
+
CONFIG_TMPFS=y
37
+
# CONFIG_MISC_FILESYSTEMS is not set
38
+
# CONFIG_SCHED_DEBUG is not set
39
+
CONFIG_DEBUG_INFO=y
+40
arch/metag/configs/meta2_smp_defconfig
+40
arch/metag/configs/meta2_smp_defconfig
···
1
+
CONFIG_EXPERIMENTAL=y
2
+
# CONFIG_LOCALVERSION_AUTO is not set
3
+
# CONFIG_SWAP is not set
4
+
CONFIG_SYSVIPC=y
5
+
CONFIG_LOG_BUF_SHIFT=13
6
+
CONFIG_SYSFS_DEPRECATED=y
7
+
CONFIG_SYSFS_DEPRECATED_V2=y
8
+
CONFIG_KALLSYMS_ALL=y
9
+
# CONFIG_ELF_CORE is not set
10
+
CONFIG_SLAB=y
11
+
# CONFIG_BLK_DEV_BSG is not set
12
+
CONFIG_PARTITION_ADVANCED=y
13
+
# CONFIG_MSDOS_PARTITION is not set
14
+
# CONFIG_IOSCHED_DEADLINE is not set
15
+
# CONFIG_IOSCHED_CFQ is not set
16
+
CONFIG_METAG_L2C=y
17
+
CONFIG_FLATMEM_MANUAL=y
18
+
CONFIG_METAG_HALT_ON_PANIC=y
19
+
CONFIG_SMP=y
20
+
CONFIG_HZ_100=y
21
+
CONFIG_DEVTMPFS=y
22
+
# CONFIG_STANDALONE is not set
23
+
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
24
+
# CONFIG_FW_LOADER is not set
25
+
CONFIG_BLK_DEV_RAM=y
26
+
CONFIG_BLK_DEV_RAM_COUNT=1
27
+
CONFIG_BLK_DEV_RAM_SIZE=16384
28
+
# CONFIG_INPUT is not set
29
+
# CONFIG_SERIO is not set
30
+
# CONFIG_VT is not set
31
+
# CONFIG_LEGACY_PTYS is not set
32
+
# CONFIG_DEVKMEM is not set
33
+
# CONFIG_HW_RANDOM is not set
34
+
# CONFIG_HWMON is not set
35
+
# CONFIG_USB_SUPPORT is not set
36
+
# CONFIG_DNOTIFY is not set
37
+
CONFIG_TMPFS=y
38
+
# CONFIG_MISC_FILESYSTEMS is not set
39
+
# CONFIG_SCHED_DEBUG is not set
40
+
CONFIG_DEBUG_INFO=y
+55
arch/metag/include/asm/Kbuild
+55
arch/metag/include/asm/Kbuild
···
1
+
generic-y += auxvec.h
2
+
generic-y += bitsperlong.h
3
+
generic-y += bugs.h
4
+
generic-y += clkdev.h
5
+
generic-y += cputime.h
6
+
generic-y += current.h
7
+
generic-y += device.h
8
+
generic-y += dma.h
9
+
generic-y += emergency-restart.h
10
+
generic-y += errno.h
11
+
generic-y += exec.h
12
+
generic-y += fb.h
13
+
generic-y += fcntl.h
14
+
generic-y += ftrace.h
15
+
generic-y += futex.h
16
+
generic-y += hardirq.h
17
+
generic-y += hw_irq.h
18
+
generic-y += ioctl.h
19
+
generic-y += ioctls.h
20
+
generic-y += ipcbuf.h
21
+
generic-y += irq_regs.h
22
+
generic-y += kdebug.h
23
+
generic-y += kmap_types.h
24
+
generic-y += kvm_para.h
25
+
generic-y += local.h
26
+
generic-y += local64.h
27
+
generic-y += msgbuf.h
28
+
generic-y += mutex.h
29
+
generic-y += param.h
30
+
generic-y += pci.h
31
+
generic-y += percpu.h
32
+
generic-y += poll.h
33
+
generic-y += posix_types.h
34
+
generic-y += scatterlist.h
35
+
generic-y += sections.h
36
+
generic-y += sembuf.h
37
+
generic-y += serial.h
38
+
generic-y += shmbuf.h
39
+
generic-y += shmparam.h
40
+
generic-y += signal.h
41
+
generic-y += socket.h
42
+
generic-y += sockios.h
43
+
generic-y += stat.h
44
+
generic-y += statfs.h
45
+
generic-y += switch_to.h
46
+
generic-y += termbits.h
47
+
generic-y += termios.h
48
+
generic-y += timex.h
49
+
generic-y += trace_clock.h
50
+
generic-y += types.h
51
+
generic-y += ucontext.h
52
+
generic-y += unaligned.h
53
+
generic-y += user.h
54
+
generic-y += vga.h
55
+
generic-y += xor.h
+13
arch/metag/include/uapi/asm/Kbuild
+13
arch/metag/include/uapi/asm/Kbuild
···
1
+
# UAPI Header export list
2
+
include include/uapi/asm-generic/Kbuild.asm
3
+
4
+
header-y += byteorder.h
5
+
header-y += ptrace.h
6
+
header-y += resource.h
7
+
header-y += sigcontext.h
8
+
header-y += siginfo.h
9
+
header-y += swab.h
10
+
header-y += unistd.h
11
+
12
+
generic-y += mman.h
13
+
generic-y += setup.h
+1
arch/metag/kernel/.gitignore
+1
arch/metag/kernel/.gitignore
···
1
+
vmlinux.lds
+36
arch/metag/kernel/Makefile
+36
arch/metag/kernel/Makefile
···
1
+
#
2
+
# Makefile for the Linux/Meta kernel.
3
+
#
4
+
5
+
extra-y += head.o
6
+
extra-y += vmlinux.lds
7
+
8
+
obj-y += cachepart.o
9
+
obj-y += clock.o
10
+
obj-y += core_reg.o
11
+
obj-y += devtree.o
12
+
obj-y += dma.o
13
+
obj-y += irq.o
14
+
obj-y += kick.o
15
+
obj-y += machines.o
16
+
obj-y += process.o
17
+
obj-y += ptrace.o
18
+
obj-y += setup.o
19
+
obj-y += signal.o
20
+
obj-y += stacktrace.o
21
+
obj-y += sys_metag.o
22
+
obj-y += tbiunexp.o
23
+
obj-y += time.o
24
+
obj-y += topology.o
25
+
obj-y += traps.o
26
+
obj-y += user_gateway.o
27
+
28
+
obj-$(CONFIG_METAG_COREMEM) += coremem.o
29
+
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
30
+
obj-$(CONFIG_FUNCTION_TRACER) += ftrace_stub.o
31
+
obj-$(CONFIG_MODULES) += metag_ksyms.o
32
+
obj-$(CONFIG_MODULES) += module.o
33
+
obj-$(CONFIG_PERF_EVENTS) += perf_callchain.o
34
+
obj-$(CONFIG_SMP) += smp.o
35
+
obj-$(CONFIG_METAG_SUSPEND_MEM) += suspend.o
36
+
obj-$(CONFIG_METAG_USER_TCM) += tcm.o
+14
arch/metag/kernel/asm-offsets.c
+14
arch/metag/kernel/asm-offsets.c
+75
arch/metag/kernel/metag_ksyms.c
+75
arch/metag/kernel/metag_ksyms.c
···
1
+
#include <linux/export.h>
2
+
#include <linux/linkage.h>
3
+
#include <linux/string.h>
4
+
#include <linux/mm.h>
5
+
#include <linux/user.h>
6
+
#include <linux/interrupt.h>
7
+
#include <linux/hardirq.h>
8
+
9
+
#include <asm/setup.h>
10
+
#include <asm/checksum.h>
11
+
#include <asm/uaccess.h>
12
+
#include <asm/traps.h>
13
+
#include <asm/tbx.h>
14
+
15
+
/* uaccess symbols */
16
+
EXPORT_SYMBOL(__copy_user_zeroing);
17
+
EXPORT_SYMBOL(__copy_user);
18
+
EXPORT_SYMBOL(__get_user_asm_b);
19
+
EXPORT_SYMBOL(__get_user_asm_w);
20
+
EXPORT_SYMBOL(__get_user_asm_d);
21
+
EXPORT_SYMBOL(__put_user_asm_b);
22
+
EXPORT_SYMBOL(__put_user_asm_w);
23
+
EXPORT_SYMBOL(__put_user_asm_d);
24
+
EXPORT_SYMBOL(__put_user_asm_l);
25
+
EXPORT_SYMBOL(__strncpy_from_user);
26
+
EXPORT_SYMBOL(strnlen_user);
27
+
EXPORT_SYMBOL(__do_clear_user);
28
+
29
+
EXPORT_SYMBOL(pTBI_get);
30
+
EXPORT_SYMBOL(meta_memoffset);
31
+
EXPORT_SYMBOL(kick_register_func);
32
+
EXPORT_SYMBOL(kick_unregister_func);
33
+
#ifdef CONFIG_SMP
34
+
EXPORT_SYMBOL(get_trigger_mask);
35
+
#else
36
+
EXPORT_SYMBOL(global_trigger_mask);
37
+
#endif
38
+
39
+
EXPORT_SYMBOL(empty_zero_page);
40
+
41
+
EXPORT_SYMBOL(pfn_base);
42
+
#ifdef CONFIG_FLATMEM
43
+
/* needed for the pfn_valid macro */
44
+
EXPORT_SYMBOL(max_pfn);
45
+
EXPORT_SYMBOL(min_low_pfn);
46
+
#endif
47
+
48
+
/* TBI symbols */
49
+
EXPORT_SYMBOL(__TBI);
50
+
EXPORT_SYMBOL(__TBIFindSeg);
51
+
EXPORT_SYMBOL(__TBIPoll);
52
+
EXPORT_SYMBOL(__TBITimeStamp);
53
+
54
+
#define DECLARE_EXPORT(name) extern void name(void); EXPORT_SYMBOL(name)
55
+
56
+
/* libgcc functions */
57
+
DECLARE_EXPORT(__ashldi3);
58
+
DECLARE_EXPORT(__ashrdi3);
59
+
DECLARE_EXPORT(__lshrdi3);
60
+
DECLARE_EXPORT(__udivsi3);
61
+
DECLARE_EXPORT(__divsi3);
62
+
DECLARE_EXPORT(__umodsi3);
63
+
DECLARE_EXPORT(__modsi3);
64
+
DECLARE_EXPORT(__muldi3);
65
+
DECLARE_EXPORT(__cmpdi2);
66
+
DECLARE_EXPORT(__ucmpdi2);
67
+
68
+
/* Maths functions */
69
+
EXPORT_SYMBOL(div_u64);
70
+
EXPORT_SYMBOL(div_s64);
71
+
72
+
/* String functions */
73
+
EXPORT_SYMBOL(memcpy);
74
+
EXPORT_SYMBOL(memset);
75
+
EXPORT_SYMBOL(memmove);
+71
arch/metag/kernel/vmlinux.lds.S
+71
arch/metag/kernel/vmlinux.lds.S
···
1
+
/* ld script to make Meta Linux kernel */
2
+
3
+
#include <asm/thread_info.h>
4
+
#include <asm/page.h>
5
+
#include <asm/cache.h>
6
+
7
+
#include <asm-generic/vmlinux.lds.h>
8
+
9
+
OUTPUT_FORMAT("elf32-metag", "elf32-metag", "elf32-metag")
10
+
OUTPUT_ARCH(metag)
11
+
ENTRY(__start)
12
+
13
+
_jiffies = _jiffies_64;
14
+
SECTIONS
15
+
{
16
+
. = CONFIG_PAGE_OFFSET;
17
+
_text = .;
18
+
__text = .;
19
+
__stext = .;
20
+
HEAD_TEXT_SECTION
21
+
.text : {
22
+
TEXT_TEXT
23
+
SCHED_TEXT
24
+
LOCK_TEXT
25
+
KPROBES_TEXT
26
+
IRQENTRY_TEXT
27
+
*(.text.*)
28
+
*(.gnu.warning)
29
+
}
30
+
31
+
__etext = .; /* End of text section */
32
+
33
+
__sdata = .;
34
+
RO_DATA_SECTION(PAGE_SIZE)
35
+
RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE)
36
+
__edata = .; /* End of data section */
37
+
38
+
EXCEPTION_TABLE(16)
39
+
NOTES
40
+
41
+
. = ALIGN(PAGE_SIZE); /* Init code and data */
42
+
___init_begin = .;
43
+
INIT_TEXT_SECTION(PAGE_SIZE)
44
+
INIT_DATA_SECTION(16)
45
+
46
+
.init.arch.info : {
47
+
___arch_info_begin = .;
48
+
*(.arch.info.init)
49
+
___arch_info_end = .;
50
+
}
51
+
52
+
PERCPU_SECTION(L1_CACHE_BYTES)
53
+
54
+
___init_end = .;
55
+
56
+
BSS_SECTION(0, PAGE_SIZE, 0)
57
+
58
+
__end = .;
59
+
60
+
. = ALIGN(PAGE_SIZE);
61
+
__heap_start = .;
62
+
63
+
DWARF_DEBUG
64
+
65
+
/* When something in the kernel is NOT compiled as a module, the
66
+
* module cleanup code and data are put into these segments. Both
67
+
* can then be thrown away, as cleanup code is never called unless
68
+
* it's a module.
69
+
*/
70
+
DISCARDS
71
+
}
+22
arch/metag/lib/Makefile
+22
arch/metag/lib/Makefile
···
1
+
#
2
+
# Makefile for Meta-specific library files.
3
+
#
4
+
5
+
lib-y += usercopy.o
6
+
lib-y += copy_page.o
7
+
lib-y += clear_page.o
8
+
lib-y += memcpy.o
9
+
lib-y += memmove.o
10
+
lib-y += memset.o
11
+
lib-y += delay.o
12
+
lib-y += div64.o
13
+
lib-y += muldi3.o
14
+
lib-y += ashrdi3.o
15
+
lib-y += ashldi3.o
16
+
lib-y += lshrdi3.o
17
+
lib-y += divsi3.o
18
+
lib-y += modsi3.o
19
+
lib-y += cmpdi2.o
20
+
lib-y += ucmpdi2.o
21
+
lib-y += ip_fast_csum.o
22
+
lib-y += checksum.o
+153
arch/metag/mm/Kconfig
+153
arch/metag/mm/Kconfig
···
1
+
menu "Memory management options"
2
+
3
+
config PAGE_OFFSET
4
+
hex "Kernel page offset address"
5
+
default "0x40000000"
6
+
help
7
+
This option allows you to set the virtual address at which the
8
+
kernel will be mapped to.
9
+
endmenu
10
+
11
+
config KERNEL_4M_PAGES
12
+
bool "Map kernel with 4MB pages"
13
+
depends on METAG_META21_MMU
14
+
default y
15
+
help
16
+
Map the kernel with large pages to reduce TLB pressure.
17
+
18
+
choice
19
+
prompt "User page size"
20
+
default PAGE_SIZE_4K
21
+
22
+
config PAGE_SIZE_4K
23
+
bool "4kB"
24
+
help
25
+
This is the default page size used by all Meta cores.
26
+
27
+
config PAGE_SIZE_8K
28
+
bool "8kB"
29
+
depends on METAG_META21_MMU
30
+
help
31
+
This enables 8kB pages as supported by Meta 2.x and later MMUs.
32
+
33
+
config PAGE_SIZE_16K
34
+
bool "16kB"
35
+
depends on METAG_META21_MMU
36
+
help
37
+
This enables 16kB pages as supported by Meta 2.x and later MMUs.
38
+
39
+
endchoice
40
+
41
+
config NUMA
42
+
bool "Non Uniform Memory Access (NUMA) Support"
43
+
help
44
+
Some Meta systems have MMU-mappable on-chip memories with
45
+
lower latencies than main memory. This enables support for
46
+
these blocks by binding them to nodes and allowing
47
+
memory policies to be used for prioritizing and controlling
48
+
allocation behaviour.
49
+
50
+
config FORCE_MAX_ZONEORDER
51
+
int "Maximum zone order"
52
+
range 10 32
53
+
default "10"
54
+
help
55
+
The kernel memory allocator divides physically contiguous memory
56
+
blocks into "zones", where each zone is a power of two number of
57
+
pages. This option selects the largest power of two that the kernel
58
+
keeps in the memory allocator. If you need to allocate very large
59
+
blocks of physically contiguous memory, then you may need to
60
+
increase this value.
61
+
62
+
This config option is actually maximum order plus one. For example,
63
+
a value of 11 means that the largest free memory block is 2^10 pages.
64
+
65
+
The page size is not necessarily 4KB. Keep this in mind
66
+
when choosing a value for this option.
67
+
68
+
config METAG_L2C
69
+
bool "Level 2 Cache Support"
70
+
depends on METAG_META21
71
+
help
72
+
Press y here to enable support for the Meta Level 2 (L2) cache. This
73
+
will enable the cache at start up if it hasn't already been enabled
74
+
by the bootloader.
75
+
76
+
If the bootloader enables the L2 you must press y here to ensure the
77
+
kernel takes the appropriate actions to keep the cache coherent.
78
+
79
+
config NODES_SHIFT
80
+
int
81
+
default "1"
82
+
depends on NEED_MULTIPLE_NODES
83
+
84
+
config ARCH_FLATMEM_ENABLE
85
+
def_bool y
86
+
depends on !NUMA
87
+
88
+
config ARCH_SPARSEMEM_ENABLE
89
+
def_bool y
90
+
select SPARSEMEM_STATIC
91
+
92
+
config ARCH_SPARSEMEM_DEFAULT
93
+
def_bool y
94
+
95
+
config MAX_ACTIVE_REGIONS
96
+
int
97
+
default "2" if SPARSEMEM
98
+
default "1"
99
+
100
+
config ARCH_POPULATES_NODE_MAP
101
+
def_bool y
102
+
103
+
config ARCH_SELECT_MEMORY_MODEL
104
+
def_bool y
105
+
106
+
config SYS_SUPPORTS_HUGETLBFS
107
+
def_bool y
108
+
depends on METAG_META21_MMU
109
+
110
+
choice
111
+
prompt "HugeTLB page size"
112
+
depends on METAG_META21_MMU && HUGETLB_PAGE
113
+
default HUGETLB_PAGE_SIZE_1M
114
+
115
+
config HUGETLB_PAGE_SIZE_8K
116
+
bool "8kB"
117
+
depends on PAGE_SIZE_4K
118
+
119
+
config HUGETLB_PAGE_SIZE_16K
120
+
bool "16kB"
121
+
depends on PAGE_SIZE_4K || PAGE_SIZE_8K
122
+
123
+
config HUGETLB_PAGE_SIZE_32K
124
+
bool "32kB"
125
+
126
+
config HUGETLB_PAGE_SIZE_64K
127
+
bool "64kB"
128
+
129
+
config HUGETLB_PAGE_SIZE_128K
130
+
bool "128kB"
131
+
132
+
config HUGETLB_PAGE_SIZE_256K
133
+
bool "256kB"
134
+
135
+
config HUGETLB_PAGE_SIZE_512K
136
+
bool "512kB"
137
+
138
+
config HUGETLB_PAGE_SIZE_1M
139
+
bool "1MB"
140
+
141
+
config HUGETLB_PAGE_SIZE_2M
142
+
bool "2MB"
143
+
144
+
config HUGETLB_PAGE_SIZE_4M
145
+
bool "4MB"
146
+
147
+
endchoice
148
+
149
+
config METAG_COREMEM
150
+
bool
151
+
default y if SUSPEND
152
+
153
+
source "mm/Kconfig"
+19
arch/metag/mm/Makefile
+19
arch/metag/mm/Makefile
···
1
+
#
2
+
# Makefile for the linux Meta-specific parts of the memory manager.
3
+
#
4
+
5
+
obj-y += cache.o
6
+
obj-y += extable.o
7
+
obj-y += fault.o
8
+
obj-y += init.o
9
+
obj-y += ioremap.o
10
+
obj-y += maccess.o
11
+
12
+
mmu-y := mmu-meta1.o
13
+
mmu-$(CONFIG_METAG_META21_MMU) := mmu-meta2.o
14
+
obj-y += $(mmu-y)
15
+
16
+
obj-$(CONFIG_HIGHMEM) += highmem.o
17
+
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
18
+
obj-$(CONFIG_METAG_L2C) += l2cache.o
19
+
obj-$(CONFIG_NUMA) += numa.o
+21
arch/metag/tbx/Makefile
+21
arch/metag/tbx/Makefile
···
1
+
#
2
+
# Makefile for TBX library files..
3
+
#
4
+
5
+
asflags-y += -mmetac=2.1 -Wa,-mfpu=metac21 -mdsp
6
+
asflags-$(CONFIG_SMP) += -DTBX_PERCPU_SP_SAVE
7
+
8
+
ccflags-y += -mmetac=2.1
9
+
10
+
lib-y += tbicore.o
11
+
lib-y += tbictx.o
12
+
lib-y += tbidefr.o
13
+
lib-y += tbilogf.o
14
+
lib-y += tbipcx.o
15
+
lib-y += tbiroot.o
16
+
lib-y += tbisoft.o
17
+
lib-y += tbistring.o
18
+
lib-y += tbitimer.o
19
+
20
+
lib-$(CONFIG_METAG_DSP) += tbidspram.o
21
+
lib-$(CONFIG_METAG_FPU) += tbictxfpu.o