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