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