tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1config PPC_PSERIES
2 depends on PPC64 && PPC_BOOK3S
3 bool "IBM pSeries & new (POWER5-based) iSeries"
4 select HAVE_PCSPKR_PLATFORM
5 select MPIC
6 select OF_DYNAMIC
7 select PCI_MSI
8 select PPC_XICS
9 select PPC_ICP_NATIVE
10 select PPC_ICP_HV
11 select PPC_ICS_RTAS
12 select PPC_I8259
13 select PPC_RTAS
14 select PPC_RTAS_DAEMON
15 select RTAS_ERROR_LOGGING
16 select PPC_UDBG_16550
17 select PPC_NATIVE
18 select PPC_PCI_CHOICE if EXPERT
19 select PPC_DOORBELL
20 select HAVE_CONTEXT_TRACKING
21 select HOTPLUG_CPU if SMP
22 select ARCH_RANDOM
23 select PPC_DOORBELL
24 default y
25
26config PPC_SPLPAR
27 depends on PPC_PSERIES
28 bool "Support for shared-processor logical partitions"
29 default n
30 help
31 Enabling this option will make the kernel run more efficiently
32 on logically-partitioned pSeries systems which use shared
33 processors, that is, which share physical processors between
34 two or more partitions.
35
36config DTL
37 bool "Dispatch Trace Log"
38 depends on PPC_SPLPAR && DEBUG_FS
39 help
40 SPLPAR machines can log hypervisor preempt & dispatch events to a
41 kernel buffer. Saying Y here will enable logging these events,
42 which are accessible through a debugfs file.
43
44 Say N if you are unsure.
45
46config PSERIES_MSI
47 bool
48 depends on PCI_MSI && PPC_PSERIES && EEH
49 default y
50
51config PSERIES_ENERGY
52 tristate "pSeries energy management capabilities driver"
53 depends on PPC_PSERIES
54 default y
55 help
56 Provides interface to platform energy management capabilities
57 on supported PSERIES platforms.
58 Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
59 and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
60
61config SCANLOG
62 tristate "Scanlog dump interface"
63 depends on RTAS_PROC && PPC_PSERIES
64
65config IO_EVENT_IRQ
66 bool "IO Event Interrupt support"
67 depends on PPC_PSERIES
68 default y
69 help
70 Select this option, if you want to enable support for IO Event
71 interrupts. IO event interrupt is a mechanism provided by RTAS
72 to return information about hardware error and non-error events
73 which may need OS attention. RTAS returns events for multiple
74 event types and scopes. Device drivers can register their handlers
75 to receive events.
76
77 This option will only enable the IO event platform code. You
78 will still need to enable or compile the actual drivers
79 that use this infrastructure to handle IO event interrupts.
80
81 Say Y if you are unsure.
82
83config LPARCFG
84 bool "LPAR Configuration Data"
85 depends on PPC_PSERIES
86 help
87 Provide system capacity information via human readable
88 <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
89
90config PPC_PSERIES_DEBUG
91 depends on PPC_PSERIES && PPC_EARLY_DEBUG
92 bool "Enable extra debug logging in platforms/pseries"
93 help
94 Say Y here if you want the pseries core to produce a bunch of
95 debug messages to the system log. Select this if you are having a
96 problem with the pseries core and want to see more of what is
97 going on. This does not enable debugging in lpar.c, which must
98 be manually done due to its verbosity.
99 default y
100
101config PPC_SMLPAR
102 bool "Support for shared-memory logical partitions"
103 depends on PPC_PSERIES
104 select LPARCFG
105 default n
106 help
107 Select this option to enable shared memory partition support.
108 With this option a system running in an LPAR can be given more
109 memory than physically available and will allow firmware to
110 balance memory across many LPARs.
111
112config CMM
113 tristate "Collaborative memory management"
114 depends on PPC_SMLPAR
115 default y
116 help
117 Select this option, if you want to enable the kernel interface
118 to reduce the memory size of the system. This is accomplished
119 by allocating pages of memory and put them "on hold". This only
120 makes sense for a system running in an LPAR where the unused pages
121 will be reused for other LPARs. The interface allows firmware to
122 balance memory across many LPARs.
123
124config HV_PERF_CTRS
125 bool "Hypervisor supplied PMU events (24x7 & GPCI)"
126 default y
127 depends on PERF_EVENTS && PPC_PSERIES
128 help
129 Enable access to hypervisor supplied counters in perf. Currently,
130 this enables code that uses the hcall GetPerfCounterInfo and 24x7
131 interfaces to retrieve counters. GPCI exists on Power 6 and later
132 systems. 24x7 is available on Power 8 systems.
133
134 If unsure, select Y.