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 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_ENERGY 47 tristate "pSeries energy management capabilities driver" 48 depends on PPC_PSERIES 49 default y 50 help 51 Provides interface to platform energy management capabilities 52 on supported PSERIES platforms. 53 Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list 54 and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint 55 56config SCANLOG 57 tristate "Scanlog dump interface" 58 depends on RTAS_PROC && PPC_PSERIES 59 60config IO_EVENT_IRQ 61 bool "IO Event Interrupt support" 62 depends on PPC_PSERIES 63 default y 64 help 65 Select this option, if you want to enable support for IO Event 66 interrupts. IO event interrupt is a mechanism provided by RTAS 67 to return information about hardware error and non-error events 68 which may need OS attention. RTAS returns events for multiple 69 event types and scopes. Device drivers can register their handlers 70 to receive events. 71 72 This option will only enable the IO event platform code. You 73 will still need to enable or compile the actual drivers 74 that use this infrastructure to handle IO event interrupts. 75 76 Say Y if you are unsure. 77 78config LPARCFG 79 bool "LPAR Configuration Data" 80 depends on PPC_PSERIES 81 help 82 Provide system capacity information via human readable 83 <key word>=<value> pairs through a /proc/ppc64/lparcfg interface. 84 85config PPC_PSERIES_DEBUG 86 depends on PPC_PSERIES && PPC_EARLY_DEBUG 87 bool "Enable extra debug logging in platforms/pseries" 88 help 89 Say Y here if you want the pseries core to produce a bunch of 90 debug messages to the system log. Select this if you are having a 91 problem with the pseries core and want to see more of what is 92 going on. This does not enable debugging in lpar.c, which must 93 be manually done due to its verbosity. 94 default y 95 96config PPC_SMLPAR 97 bool "Support for shared-memory logical partitions" 98 depends on PPC_PSERIES 99 select LPARCFG 100 default n 101 help 102 Select this option to enable shared memory partition support. 103 With this option a system running in an LPAR can be given more 104 memory than physically available and will allow firmware to 105 balance memory across many LPARs. 106 107config CMM 108 tristate "Collaborative memory management" 109 depends on PPC_SMLPAR 110 default y 111 help 112 Select this option, if you want to enable the kernel interface 113 to reduce the memory size of the system. This is accomplished 114 by allocating pages of memory and put them "on hold". This only 115 makes sense for a system running in an LPAR where the unused pages 116 will be reused for other LPARs. The interface allows firmware to 117 balance memory across many LPARs. 118 119config HV_PERF_CTRS 120 bool "Hypervisor supplied PMU events (24x7 & GPCI)" 121 default y 122 depends on PERF_EVENTS && PPC_PSERIES 123 help 124 Enable access to hypervisor supplied counters in perf. Currently, 125 this enables code that uses the hcall GetPerfCounterInfo and 24x7 126 interfaces to retrieve counters. GPCI exists on Power 6 and later 127 systems. 24x7 is available on Power 8 systems. 128 129 If unsure, select Y. 130