arch/powerpc/platforms/pseries/Kconfig

   1 config 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 ZLIB_DEFLATE
  20         select PPC_DOORBELL
  21         select HAVE_CONTEXT_TRACKING
  22         select HOTPLUG if SMP
  23         select HOTPLUG_CPU if SMP
  24         default y
  25
  26 config 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
  36 config EEH
  37         bool
  38         depends on PPC_PSERIES && PCI
  39         default y
  40
  41 config PSERIES_MSI
  42        bool
  43        depends on PCI_MSI && EEH
  44        default y
  45
  46 config 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
  56 config SCANLOG
  57         tristate "Scanlog dump interface"
  58         depends on RTAS_PROC && PPC_PSERIES
  59
  60 config 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
  78 config 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
  85 config 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
  96 config 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
 107 config 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
 119 config DTL
 120         bool "Dispatch Trace Log"
 121         depends on PPC_SPLPAR && DEBUG_FS
 122         help
 123           SPLPAR machines can log hypervisor preempt & dispatch events to a
 124           kernel buffer. Saying Y here will enable logging these events,
 125           which are accessible through a debugfs file.
 126
 127           Say N if you are unsure.
 128
 129 config PSERIES_IDLE
 130         bool "Cpuidle driver for pSeries platforms"
 131         depends on CPU_IDLE
 132         depends on PPC_PSERIES
 133         default y
 134         help
 135           Select this option to enable processor idle state management
 136           through cpuidle subsystem.