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_XIVE_SPAPR 11 select PPC_ICP_NATIVE 12 select PPC_ICP_HV 13 select PPC_ICS_RTAS 14 select PPC_I8259 15 select PPC_RTAS 16 select PPC_RTAS_DAEMON 17 select RTAS_ERROR_LOGGING 18 select PPC_UDBG_16550 19 select PPC_NATIVE 20 select PPC_DOORBELL 21 select HOTPLUG_CPU 22 select ARCH_RANDOM 23 select PPC_DOORBELL 24 select FORCE_SMP 25 default y 26 27config PPC_SPLPAR 28 depends on PPC_PSERIES 29 bool "Support for shared-processor logical partitions" 30 default n 31 help 32 Enabling this option will make the kernel run more efficiently 33 on logically-partitioned pSeries systems which use shared 34 processors, that is, which share physical processors between 35 two or more partitions. 36 37config DTL 38 bool "Dispatch Trace Log" 39 depends on PPC_SPLPAR && DEBUG_FS 40 help 41 SPLPAR machines can log hypervisor preempt & dispatch events to a 42 kernel buffer. Saying Y here will enable logging these events, 43 which are accessible through a debugfs file. 44 45 Say N if you are unsure. 46 47config PSERIES_ENERGY 48 tristate "pSeries energy management capabilities driver" 49 depends on PPC_PSERIES 50 default y 51 help 52 Provides interface to platform energy management capabilities 53 on supported PSERIES platforms. 54 Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list 55 and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint 56 57config SCANLOG 58 tristate "Scanlog dump interface" 59 depends on RTAS_PROC && PPC_PSERIES 60 61config IO_EVENT_IRQ 62 bool "IO Event Interrupt support" 63 depends on PPC_PSERIES 64 default y 65 help 66 Select this option, if you want to enable support for IO Event 67 interrupts. IO event interrupt is a mechanism provided by RTAS 68 to return information about hardware error and non-error events 69 which may need OS attention. RTAS returns events for multiple 70 event types and scopes. Device drivers can register their handlers 71 to receive events. 72 73 This option will only enable the IO event platform code. You 74 will still need to enable or compile the actual drivers 75 that use this infrastructure to handle IO event interrupts. 76 77 Say Y if you are unsure. 78 79config LPARCFG 80 bool "LPAR Configuration Data" 81 depends on PPC_PSERIES 82 help 83 Provide system capacity information via human readable 84 <key word>=<value> pairs through a /proc/ppc64/lparcfg interface. 85 86config PPC_PSERIES_DEBUG 87 depends on PPC_PSERIES && PPC_EARLY_DEBUG 88 bool "Enable extra debug logging in platforms/pseries" 89 help 90 Say Y here if you want the pseries core to produce a bunch of 91 debug messages to the system log. Select this if you are having a 92 problem with the pseries core and want to see more of what is 93 going on. This does not enable debugging in lpar.c, which must 94 be manually done due to its verbosity. 95 default y 96 97config PPC_SMLPAR 98 bool "Support for shared-memory logical partitions" 99 depends on PPC_PSERIES 100 select LPARCFG 101 default n 102 help 103 Select this option to enable shared memory partition support. 104 With this option a system running in an LPAR can be given more 105 memory than physically available and will allow firmware to 106 balance memory across many LPARs. 107 108config CMM 109 tristate "Collaborative memory management" 110 depends on PPC_SMLPAR 111 default y 112 help 113 Select this option, if you want to enable the kernel interface 114 to reduce the memory size of the system. This is accomplished 115 by allocating pages of memory and put them "on hold". This only 116 makes sense for a system running in an LPAR where the unused pages 117 will be reused for other LPARs. The interface allows firmware to 118 balance memory across many LPARs. 119 120config HV_PERF_CTRS 121 bool "Hypervisor supplied PMU events (24x7 & GPCI)" 122 default y 123 depends on PERF_EVENTS && PPC_PSERIES 124 help 125 Enable access to hypervisor supplied counters in perf. Currently, 126 this enables code that uses the hcall GetPerfCounterInfo and 24x7 127 interfaces to retrieve counters. GPCI exists on Power 6 and later 128 systems. 24x7 is available on Power 8 and later systems. 129 130 If unsure, select Y. 131 132config IBMVIO 133 depends on PPC_PSERIES 134 bool 135 default y 136 137config IBMEBUS 138 depends on PPC_PSERIES && !CPU_LITTLE_ENDIAN 139 bool "Support for GX bus based adapters" 140 help 141 Bus device driver for GX bus based adapters. 142