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
8 select PCI_MSI
9 select PPC_XICS
10 select PPC_ICP_NATIVE
11 select PPC_ICP_HV
12 select PPC_ICS_RTAS
13 select PPC_I8259
14 select PPC_RTAS
15 select PPC_RTAS_DAEMON
16 select RTAS_ERROR_LOGGING
17 select PPC_UDBG_16550
18 select PPC_NATIVE
19 select PPC_DOORBELL
20 select HOTPLUG_CPU if SMP
21 select ARCH_RANDOM
22 select PPC_DOORBELL
23 default y
24
25config PPC_SPLPAR
26 depends on PPC_PSERIES
27 bool "Support for shared-processor logical partitions"
28 default n
29 help
30 Enabling this option will make the kernel run more efficiently
31 on logically-partitioned pSeries systems which use shared
32 processors, that is, which share physical processors between
33 two or more partitions.
34
35config DTL
36 bool "Dispatch Trace Log"
37 depends on PPC_SPLPAR && DEBUG_FS
38 help
39 SPLPAR machines can log hypervisor preempt & dispatch events to a
40 kernel buffer. Saying Y here will enable logging these events,
41 which are accessible through a debugfs file.
42
43 Say N if you are unsure.
44
45config PSERIES_ENERGY
46 tristate "pSeries energy management capabilities driver"
47 depends on PPC_PSERIES
48 default y
49 help
50 Provides interface to platform energy management capabilities
51 on supported PSERIES platforms.
52 Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
53 and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
54
55config SCANLOG
56 tristate "Scanlog dump interface"
57 depends on RTAS_PROC && PPC_PSERIES
58
59config IO_EVENT_IRQ
60 bool "IO Event Interrupt support"
61 depends on PPC_PSERIES
62 default y
63 help
64 Select this option, if you want to enable support for IO Event
65 interrupts. IO event interrupt is a mechanism provided by RTAS
66 to return information about hardware error and non-error events
67 which may need OS attention. RTAS returns events for multiple
68 event types and scopes. Device drivers can register their handlers
69 to receive events.
70
71 This option will only enable the IO event platform code. You
72 will still need to enable or compile the actual drivers
73 that use this infrastructure to handle IO event interrupts.
74
75 Say Y if you are unsure.
76
77config LPARCFG
78 bool "LPAR Configuration Data"
79 depends on PPC_PSERIES
80 help
81 Provide system capacity information via human readable
82 <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
83
84config PPC_PSERIES_DEBUG
85 depends on PPC_PSERIES && PPC_EARLY_DEBUG
86 bool "Enable extra debug logging in platforms/pseries"
87 help
88 Say Y here if you want the pseries core to produce a bunch of
89 debug messages to the system log. Select this if you are having a
90 problem with the pseries core and want to see more of what is
91 going on. This does not enable debugging in lpar.c, which must
92 be manually done due to its verbosity.
93 default y
94
95config PPC_SMLPAR
96 bool "Support for shared-memory logical partitions"
97 depends on PPC_PSERIES
98 select LPARCFG
99 default n
100 help
101 Select this option to enable shared memory partition support.
102 With this option a system running in an LPAR can be given more
103 memory than physically available and will allow firmware to
104 balance memory across many LPARs.
105
106config CMM
107 tristate "Collaborative memory management"
108 depends on PPC_SMLPAR
109 default y
110 help
111 Select this option, if you want to enable the kernel interface
112 to reduce the memory size of the system. This is accomplished
113 by allocating pages of memory and put them "on hold". This only
114 makes sense for a system running in an LPAR where the unused pages
115 will be reused for other LPARs. The interface allows firmware to
116 balance memory across many LPARs.
117
118config HV_PERF_CTRS
119 bool "Hypervisor supplied PMU events (24x7 & GPCI)"
120 default y
121 depends on PERF_EVENTS && PPC_PSERIES
122 help
123 Enable access to hypervisor supplied counters in perf. Currently,
124 this enables code that uses the hcall GetPerfCounterInfo and 24x7
125 interfaces to retrieve counters. GPCI exists on Power 6 and later
126 systems. 24x7 is available on Power 8 systems.
127
128 If unsure, select Y.
129
130config IBMVIO
131 depends on PPC_PSERIES
132 bool
133 default y
134
135config IBMEBUS
136 depends on PPC_PSERIES && !CPU_LITTLE_ENDIAN
137 bool "Support for GX bus based adapters"
138 help
139 Bus device driver for GX bus based adapters.