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