Kconfig 4.2 KB

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  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 PPC_DOORBELL
  20. select HAVE_CONTEXT_TRACKING
  21. select HOTPLUG_CPU if SMP
  22. select ARCH_RANDOM
  23. select PPC_DOORBELL
  24. default y
  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. config DTL
  35. bool "Dispatch Trace Log"
  36. depends on PPC_SPLPAR && DEBUG_FS
  37. help
  38. SPLPAR machines can log hypervisor preempt & dispatch events to a
  39. kernel buffer. Saying Y here will enable logging these events,
  40. which are accessible through a debugfs file.
  41. Say N if you are unsure.
  42. config PSERIES_MSI
  43. bool
  44. depends on PCI_MSI && PPC_PSERIES && EEH
  45. default y
  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. config SCANLOG
  56. tristate "Scanlog dump interface"
  57. depends on RTAS_PROC && PPC_PSERIES
  58. config IO_EVENT_IRQ
  59. bool "IO Event Interrupt support"
  60. depends on PPC_PSERIES
  61. default y
  62. help
  63. Select this option, if you want to enable support for IO Event
  64. interrupts. IO event interrupt is a mechanism provided by RTAS
  65. to return information about hardware error and non-error events
  66. which may need OS attention. RTAS returns events for multiple
  67. event types and scopes. Device drivers can register their handlers
  68. to receive events.
  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. Say Y if you are unsure.
  73. config LPARCFG
  74. bool "LPAR Configuration Data"
  75. depends on PPC_PSERIES
  76. help
  77. Provide system capacity information via human readable
  78. <key word>=<value> pairs through a /proc/ppc64/lparcfg interface.
  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. config PPC_SMLPAR
  90. bool "Support for shared-memory logical partitions"
  91. depends on PPC_PSERIES
  92. select LPARCFG
  93. default n
  94. help
  95. Select this option to enable shared memory partition support.
  96. With this option a system running in an LPAR can be given more
  97. memory than physically available and will allow firmware to
  98. balance memory across many LPARs.
  99. config CMM
  100. tristate "Collaborative memory management"
  101. depends on PPC_SMLPAR
  102. default y
  103. help
  104. Select this option, if you want to enable the kernel interface
  105. to reduce the memory size of the system. This is accomplished
  106. by allocating pages of memory and put them "on hold". This only
  107. makes sense for a system running in an LPAR where the unused pages
  108. will be reused for other LPARs. The interface allows firmware to
  109. balance memory across many LPARs.
  110. config HV_PERF_CTRS
  111. bool "Hypervisor supplied PMU events (24x7 & GPCI)"
  112. default y
  113. depends on PERF_EVENTS && PPC_PSERIES
  114. help
  115. Enable access to hypervisor supplied counters in perf. Currently,
  116. this enables code that uses the hcall GetPerfCounterInfo and 24x7
  117. interfaces to retrieve counters. GPCI exists on Power 6 and later
  118. systems. 24x7 is available on Power 8 systems.
  119. If unsure, select Y.