1 # SPDX-License-Identifier: GPL-2.0
3 depends on PPC64 && PPC_BOOK3S
4 bool "IBM pSeries & new (POWER5-based) iSeries"
5 select HAVE_PCSPKR_PLATFORM
17 select PPC_RTAS_DAEMON
18 select RTAS_ERROR_LOGGING
29 depends on PPC_PSERIES
30 bool "Support for shared-processor logical partitions"
33 Enabling this option will make the kernel run more efficiently
34 on logically-partitioned pSeries systems which use shared
35 processors, that is, which share physical processors between
36 two or more partitions.
39 bool "Dispatch Trace Log"
40 depends on PPC_SPLPAR && DEBUG_FS
42 SPLPAR machines can log hypervisor preempt & dispatch events to a
43 kernel buffer. Saying Y here will enable logging these events,
44 which are accessible through a debugfs file.
46 Say N if you are unsure.
49 tristate "pSeries energy management capabilities driver"
50 depends on PPC_PSERIES
53 Provides interface to platform energy management capabilities
54 on supported PSERIES platforms.
55 Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
56 and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
59 tristate "Scanlog dump interface"
60 depends on RTAS_PROC && PPC_PSERIES
63 bool "IO Event Interrupt support"
64 depends on PPC_PSERIES
67 Select this option, if you want to enable support for IO Event
68 interrupts. IO event interrupt is a mechanism provided by RTAS
69 to return information about hardware error and non-error events
70 which may need OS attention. RTAS returns events for multiple
71 event types and scopes. Device drivers can register their handlers
74 This option will only enable the IO event platform code. You
75 will still need to enable or compile the actual drivers
76 that use this infrastructure to handle IO event interrupts.
78 Say Y if you are unsure.
81 bool "LPAR Configuration Data"
82 depends on PPC_PSERIES
84 Provide system capacity information via human readable
85 <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
87 config PPC_PSERIES_DEBUG
88 depends on PPC_PSERIES && PPC_EARLY_DEBUG
89 bool "Enable extra debug logging in platforms/pseries"
91 Say Y here if you want the pseries core to produce a bunch of
92 debug messages to the system log. Select this if you are having a
93 problem with the pseries core and want to see more of what is
94 going on. This does not enable debugging in lpar.c, which must
95 be manually done due to its verbosity.
99 bool "Support for shared-memory logical partitions"
100 depends on PPC_PSERIES
104 Select this option to enable shared memory partition support.
105 With this option a system running in an LPAR can be given more
106 memory than physically available and will allow firmware to
107 balance memory across many LPARs.
110 tristate "Collaborative memory management"
111 depends on PPC_SMLPAR
114 Select this option, if you want to enable the kernel interface
115 to reduce the memory size of the system. This is accomplished
116 by allocating pages of memory and put them "on hold". This only
117 makes sense for a system running in an LPAR where the unused pages
118 will be reused for other LPARs. The interface allows firmware to
119 balance memory across many LPARs.
122 bool "Hypervisor supplied PMU events (24x7 & GPCI)"
124 depends on PERF_EVENTS && PPC_PSERIES
126 Enable access to hypervisor supplied counters in perf. Currently,
127 this enables code that uses the hcall GetPerfCounterInfo and 24x7
128 interfaces to retrieve counters. GPCI exists on Power 6 and later
129 systems. 24x7 is available on Power 8 and later systems.
134 depends on PPC_PSERIES
139 depends on PPC_PSERIES && !CPU_LITTLE_ENDIAN
140 bool "Support for GX bus based adapters"
142 Bus device driver for GX bus based adapters.