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. 135