2005-09-26 14:04:21 +08:00
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.txt.
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#
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mainmenu "Linux/PowerPC Kernel Configuration"
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config PPC64
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bool "64-bit kernel"
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default n
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help
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This option selects whether a 32-bit or a 64-bit kernel
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will be built.
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2007-03-19 18:53:53 +08:00
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config PPC_PM_NEEDS_RTC_LIB
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bool
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select RTC_LIB
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default y if PM
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2005-09-26 14:04:21 +08:00
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config PPC32
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bool
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default y if !PPC64
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config 64BIT
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bool
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default y if PPC64
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config PPC_MERGE
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def_bool y
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config MMU
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bool
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default y
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config GENERIC_HARDIRQS
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bool
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default y
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2006-06-29 17:24:43 +08:00
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config IRQ_PER_CPU
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bool
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default y
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2005-09-26 14:04:21 +08:00
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config RWSEM_GENERIC_SPINLOCK
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bool
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config RWSEM_XCHGADD_ALGORITHM
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bool
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default y
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2006-12-08 18:37:49 +08:00
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config ARCH_HAS_ILOG2_U32
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bool
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2006-12-08 18:37:53 +08:00
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default y
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2006-12-08 18:37:49 +08:00
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config ARCH_HAS_ILOG2_U64
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bool
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2006-12-08 18:37:53 +08:00
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default y if 64BIT
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2006-12-08 18:37:49 +08:00
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2006-03-26 17:39:33 +08:00
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config GENERIC_HWEIGHT
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bool
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default y
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2005-09-26 14:04:21 +08:00
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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2006-05-20 04:35:32 +08:00
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config GENERIC_FIND_NEXT_BIT
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bool
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default y
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2005-09-26 14:04:21 +08:00
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config PPC
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bool
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default y
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config EARLY_PRINTK
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bool
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2005-11-23 14:57:25 +08:00
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default y
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2005-09-26 14:04:21 +08:00
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config COMPAT
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bool
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default y if PPC64
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config SYSVIPC_COMPAT
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bool
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depends on COMPAT && SYSVIPC
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default y
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# All PPC32s use generic nvram driver through ppc_md
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config GENERIC_NVRAM
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bool
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default y if PPC32
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config SCHED_NO_NO_OMIT_FRAME_POINTER
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bool
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default y
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config ARCH_MAY_HAVE_PC_FDC
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bool
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2007-03-04 14:04:44 +08:00
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default !PPC_PSERIES || PCI
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2005-09-26 14:04:21 +08:00
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2006-01-11 11:43:56 +08:00
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config PPC_OF
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def_bool y
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config PPC_UDBG_16550
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bool
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default n
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config GENERIC_TBSYNC
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bool
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default y if PPC32 && SMP
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default n
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2006-09-12 15:04:40 +08:00
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config AUDIT_ARCH
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bool
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default y
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2006-12-08 19:30:41 +08:00
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config GENERIC_BUG
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bool
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default y
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depends on BUG
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2006-01-17 00:53:22 +08:00
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config DEFAULT_UIMAGE
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bool
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help
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Used to allow a board to specify it wants a uImage built by default
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default n
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2005-09-26 14:04:21 +08:00
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menu "Processor support"
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choice
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prompt "Processor Type"
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depends on PPC32
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default 6xx
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2006-01-11 11:43:56 +08:00
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config CLASSIC32
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2006-12-05 08:29:13 +08:00
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bool "52xx/6xx/7xx/74xx"
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2005-09-26 14:04:21 +08:00
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select PPC_FPU
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2006-01-11 11:43:56 +08:00
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select 6xx
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2005-09-26 14:04:21 +08:00
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help
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There are four families of PowerPC chips supported. The more common
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types (601, 603, 604, 740, 750, 7400), the Motorola embedded
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versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
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embedded versions (403 and 405) and the high end 64 bit Power
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processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
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2006-12-05 08:29:13 +08:00
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This option is the catch-all for 6xx types, including some of the
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embedded versions. Unless there is see an option for the specific
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chip family you are using, you want this option.
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You do not want this if you are building a kernel for a 64 bit
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IBM RS/6000 or an Apple G5, choose 6xx.
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If unsure, select this option
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2005-09-26 14:04:21 +08:00
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Note that the kernel runs in 32-bit mode even on 64-bit chips.
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config PPC_82xx
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bool "Freescale 82xx"
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2006-01-11 11:43:56 +08:00
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select 6xx
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select PPC_FPU
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2005-09-26 14:04:21 +08:00
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config PPC_83xx
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bool "Freescale 83xx"
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2006-01-11 11:43:56 +08:00
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select 6xx
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select FSL_SOC
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select 83xx
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select PPC_FPU
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2005-09-26 14:04:21 +08:00
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2006-01-15 06:57:39 +08:00
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config PPC_85xx
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bool "Freescale 85xx"
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select E500
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select FSL_SOC
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select 85xx
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2006-06-18 06:52:35 +08:00
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config PPC_86xx
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bool "Freescale 86xx"
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select 6xx
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select FSL_SOC
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2007-03-08 04:48:45 +08:00
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select FSL_PCIE
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2006-06-18 06:52:35 +08:00
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select PPC_FPU
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select ALTIVEC
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help
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The Freescale E600 SoCs have 74xx cores.
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2007-01-25 03:41:06 +08:00
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config PPC_8xx
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bool "Freescale 8xx"
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select FSL_SOC
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select 8xx
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2005-09-26 14:04:21 +08:00
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config 40x
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bool "AMCC 40x"
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2006-11-11 14:24:53 +08:00
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select PPC_DCR_NATIVE
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2005-09-26 14:04:21 +08:00
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config 44x
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bool "AMCC 44x"
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2006-11-11 14:24:53 +08:00
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select PPC_DCR_NATIVE
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2005-09-26 14:04:21 +08:00
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config E200
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bool "Freescale e200"
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endchoice
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config POWER4_ONLY
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bool "Optimize for POWER4"
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2005-10-06 10:49:05 +08:00
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depends on PPC64
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2005-09-26 14:04:21 +08:00
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default n
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---help---
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Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
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The resulting binary will not work on POWER3 or RS64 processors
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when compiled with binutils 2.15 or later.
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config POWER3
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bool
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2005-10-06 10:49:05 +08:00
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depends on PPC64
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2005-09-26 14:04:21 +08:00
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default y if !POWER4_ONLY
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config POWER4
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2005-10-06 10:49:05 +08:00
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depends on PPC64
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2005-09-26 14:04:21 +08:00
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def_bool y
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2006-01-11 11:43:56 +08:00
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config 6xx
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bool
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2007-01-25 03:41:06 +08:00
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# this is temp to handle compat with arch=ppc
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config 8xx
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bool
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2006-01-11 11:43:56 +08:00
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# this is temp to handle compat with arch=ppc
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config 83xx
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bool
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2006-01-15 06:57:39 +08:00
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# this is temp to handle compat with arch=ppc
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config 85xx
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bool
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config E500
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bool
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2005-09-26 14:04:21 +08:00
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config PPC_FPU
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2005-10-06 10:49:05 +08:00
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bool
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default y if PPC64
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2005-09-26 14:04:21 +08:00
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2006-11-11 14:24:53 +08:00
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config PPC_DCR_NATIVE
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bool
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default n
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config PPC_DCR_MMIO
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bool
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default n
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config PPC_DCR
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bool
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depends on PPC_DCR_NATIVE || PPC_DCR_MMIO
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default y
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2006-11-11 14:25:08 +08:00
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config PPC_OF_PLATFORM_PCI
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bool
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depends on PPC64 # not supported on 32 bits yet
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default n
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2005-09-26 14:04:21 +08:00
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config BOOKE
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bool
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depends on E200 || E500
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default y
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config FSL_BOOKE
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bool
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depends on E200 || E500
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default y
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config PTE_64BIT
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bool
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depends on 44x || E500
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default y if 44x
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default y if E500 && PHYS_64BIT
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config PHYS_64BIT
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bool 'Large physical address support' if E500
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depends on 44x || E500
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2006-11-11 14:25:19 +08:00
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select RESOURCES_64BIT
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2005-09-26 14:04:21 +08:00
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default y if 44x
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---help---
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This option enables kernel support for larger than 32-bit physical
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addresses. This features is not be available on all e500 cores.
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If in doubt, say N here.
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config ALTIVEC
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bool "AltiVec Support"
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2006-01-11 11:43:56 +08:00
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depends on CLASSIC32 || POWER4
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2005-09-26 14:04:21 +08:00
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---help---
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This option enables kernel support for the Altivec extensions to the
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PowerPC processor. The kernel currently supports saving and restoring
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altivec registers, and turning on the 'altivec enable' bit so user
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processes can execute altivec instructions.
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This option is only usefully if you have a processor that supports
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altivec (G4, otherwise known as 74xx series), but does not have
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any affect on a non-altivec cpu (it does, however add code to the
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kernel).
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If in doubt, say Y here.
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config SPE
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bool "SPE Support"
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depends on E200 || E500
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2006-01-15 06:57:39 +08:00
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default y
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2005-09-26 14:04:21 +08:00
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---help---
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This option enables kernel support for the Signal Processing
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Extensions (SPE) to the PowerPC processor. The kernel currently
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supports saving and restoring SPE registers, and turning on the
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'spe enable' bit so user processes can execute SPE instructions.
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This option is only useful if you have a processor that supports
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SPE (e500, otherwise known as 85xx series), but does not have any
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effect on a non-spe cpu (it does, however add code to the kernel).
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If in doubt, say Y here.
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config PPC_STD_MMU
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bool
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depends on 6xx || POWER3 || POWER4 || PPC64
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default y
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config PPC_STD_MMU_32
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def_bool y
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depends on PPC_STD_MMU && PPC32
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powerpc: Implement accurate task and CPU time accounting
This implements accurate task and cpu time accounting for 64-bit
powerpc kernels. Instead of accounting a whole jiffy of time to a
task on a timer interrupt because that task happened to be running at
the time, we now account time in units of timebase ticks according to
the actual time spent by the task in user mode and kernel mode. We
also count the time spent processing hardware and software interrupts
accurately. This is conditional on CONFIG_VIRT_CPU_ACCOUNTING. If
that is not set, we do tick-based approximate accounting as before.
To get this accurate information, we read either the PURR (processor
utilization of resources register) on POWER5 machines, or the timebase
on other machines on
* each entry to the kernel from usermode
* each exit to usermode
* transitions between process context, hard irq context and soft irq
context in kernel mode
* context switches.
On POWER5 systems with shared-processor logical partitioning we also
read both the PURR and the timebase at each timer interrupt and
context switch in order to determine how much time has been taken by
the hypervisor to run other partitions ("steal" time). Unfortunately,
since we need values of the PURR on both threads at the same time to
accurately calculate the steal time, and since we can only calculate
steal time on a per-core basis, the apportioning of the steal time
between idle time (time which we ceded to the hypervisor in the idle
loop) and actual stolen time is somewhat approximate at the moment.
This is all based quite heavily on what s390 does, and it uses the
generic interfaces that were added by the s390 developers,
i.e. account_system_time(), account_user_time(), etc.
This patch doesn't add any new interfaces between the kernel and
userspace, and doesn't change the units in which time is reported to
userspace by things such as /proc/stat, /proc/<pid>/stat, getrusage(),
times(), etc. Internally the various task and cpu times are stored in
timebase units, but they are converted to USER_HZ units (1/100th of a
second) when reported to userspace. Some precision is therefore lost
but there should not be any accumulating error, since the internal
accumulation is at full precision.
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-24 07:06:59 +08:00
|
|
|
config VIRT_CPU_ACCOUNTING
|
|
|
|
|
bool "Deterministic task and CPU time accounting"
|
|
|
|
|
depends on PPC64
|
|
|
|
|
default y
|
|
|
|
|
help
|
|
|
|
|
Select this option to enable more accurate task and CPU time
|
|
|
|
|
accounting. This is done by reading a CPU counter on each
|
|
|
|
|
kernel entry and exit and on transitions within the kernel
|
|
|
|
|
between system, softirq and hardirq state, so there is a
|
|
|
|
|
small performance impact. This also enables accounting of
|
|
|
|
|
stolen time on logically-partitioned systems running on
|
|
|
|
|
IBM POWER5-based machines.
|
|
|
|
|
|
|
|
|
|
If in doubt, say Y here.
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
config SMP
|
|
|
|
|
depends on PPC_STD_MMU
|
|
|
|
|
bool "Symmetric multi-processing support"
|
|
|
|
|
---help---
|
|
|
|
|
This enables support for systems with more than one CPU. If you have
|
|
|
|
|
a system with only one CPU, say N. If you have a system with more
|
|
|
|
|
than one CPU, say Y. Note that the kernel does not currently
|
|
|
|
|
support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
|
|
|
|
|
since they have inadequate hardware support for multiprocessor
|
|
|
|
|
operation.
|
|
|
|
|
|
|
|
|
|
If you say N here, the kernel will run on single and multiprocessor
|
|
|
|
|
machines, but will use only one CPU of a multiprocessor machine. If
|
|
|
|
|
you say Y here, the kernel will run on single-processor machines.
|
|
|
|
|
On a single-processor machine, the kernel will run faster if you say
|
|
|
|
|
N here.
|
|
|
|
|
|
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
|
|
|
|
|
|
config NR_CPUS
|
2005-12-02 04:10:10 +08:00
|
|
|
int "Maximum number of CPUs (2-128)"
|
2005-09-26 14:04:21 +08:00
|
|
|
range 2 128
|
|
|
|
|
depends on SMP
|
|
|
|
|
default "32" if PPC64
|
|
|
|
|
default "4"
|
|
|
|
|
|
|
|
|
|
config NOT_COHERENT_CACHE
|
|
|
|
|
bool
|
|
|
|
|
depends on 4xx || 8xx || E200
|
|
|
|
|
default y
|
|
|
|
|
endmenu
|
|
|
|
|
|
|
|
|
|
source "init/Kconfig"
|
|
|
|
|
|
2007-03-16 22:32:17 +08:00
|
|
|
source "arch/powerpc/platforms/Kconfig"
|
2005-09-26 14:04:21 +08:00
|
|
|
|
|
|
|
|
source arch/powerpc/platforms/embedded6xx/Kconfig
|
|
|
|
|
source arch/powerpc/platforms/4xx/Kconfig
|
2006-10-03 02:41:50 +08:00
|
|
|
source arch/powerpc/platforms/82xx/Kconfig
|
2006-01-11 11:43:56 +08:00
|
|
|
source arch/powerpc/platforms/83xx/Kconfig
|
2005-09-26 14:04:21 +08:00
|
|
|
source arch/powerpc/platforms/85xx/Kconfig
|
2006-06-18 06:52:35 +08:00
|
|
|
source arch/powerpc/platforms/86xx/Kconfig
|
2005-09-26 14:04:21 +08:00
|
|
|
source arch/powerpc/platforms/8xx/Kconfig
|
|
|
|
|
|
|
|
|
|
menu "Kernel options"
|
|
|
|
|
|
|
|
|
|
config HIGHMEM
|
|
|
|
|
bool "High memory support"
|
|
|
|
|
depends on PPC32
|
|
|
|
|
|
|
|
|
|
source kernel/Kconfig.hz
|
|
|
|
|
source kernel/Kconfig.preempt
|
|
|
|
|
source "fs/Kconfig.binfmt"
|
|
|
|
|
|
|
|
|
|
# We optimistically allocate largepages from the VM, so make the limit
|
|
|
|
|
# large enough (16MB). This badly named config option is actually
|
|
|
|
|
# max order + 1
|
|
|
|
|
config FORCE_MAX_ZONEORDER
|
|
|
|
|
int
|
|
|
|
|
depends on PPC64
|
2005-11-08 05:48:59 +08:00
|
|
|
default "9" if PPC_64K_PAGES
|
2005-09-26 14:04:21 +08:00
|
|
|
default "13"
|
|
|
|
|
|
|
|
|
|
config MATH_EMULATION
|
|
|
|
|
bool "Math emulation"
|
2007-01-26 14:23:34 +08:00
|
|
|
depends on 4xx || 8xx || E200 || PPC_MPC832x || E500
|
2005-09-26 14:04:21 +08:00
|
|
|
---help---
|
|
|
|
|
Some PowerPC chips designed for embedded applications do not have
|
|
|
|
|
a floating-point unit and therefore do not implement the
|
|
|
|
|
floating-point instructions in the PowerPC instruction set. If you
|
|
|
|
|
say Y here, the kernel will include code to emulate a floating-point
|
|
|
|
|
unit, which will allow programs that use floating-point
|
|
|
|
|
instructions to run.
|
|
|
|
|
|
|
|
|
|
config IOMMU_VMERGE
|
|
|
|
|
bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
|
|
|
|
|
depends on EXPERIMENTAL && PPC64
|
|
|
|
|
default n
|
|
|
|
|
help
|
|
|
|
|
Cause IO segments sent to a device for DMA to be merged virtually
|
|
|
|
|
by the IOMMU when they happen to have been allocated contiguously.
|
|
|
|
|
This doesn't add pressure to the IOMMU allocator. However, some
|
|
|
|
|
drivers don't support getting large merged segments coming back
|
|
|
|
|
from *_map_sg(). Say Y if you know the drivers you are using are
|
|
|
|
|
properly handling this case.
|
|
|
|
|
|
|
|
|
|
config HOTPLUG_CPU
|
|
|
|
|
bool "Support for enabling/disabling CPUs"
|
|
|
|
|
depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
|
|
|
|
|
---help---
|
|
|
|
|
Say Y here to be able to disable and re-enable individual
|
|
|
|
|
CPUs at runtime on SMP machines.
|
|
|
|
|
|
|
|
|
|
Say N if you are unsure.
|
|
|
|
|
|
2006-06-29 17:24:27 +08:00
|
|
|
config ARCH_ENABLE_MEMORY_HOTPLUG
|
|
|
|
|
def_bool y
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
config KEXEC
|
|
|
|
|
bool "kexec system call (EXPERIMENTAL)"
|
|
|
|
|
depends on PPC_MULTIPLATFORM && EXPERIMENTAL
|
|
|
|
|
help
|
|
|
|
|
kexec is a system call that implements the ability to shutdown your
|
|
|
|
|
current kernel, and to start another kernel. It is like a reboot
|
2006-06-29 13:32:47 +08:00
|
|
|
but it is independent of the system firmware. And like a reboot
|
2005-09-26 14:04:21 +08:00
|
|
|
you can start any kernel with it, not just Linux.
|
|
|
|
|
|
2006-06-29 13:32:47 +08:00
|
|
|
The name comes from the similarity to the exec system call.
|
2005-09-26 14:04:21 +08:00
|
|
|
|
|
|
|
|
It is an ongoing process to be certain the hardware in a machine
|
|
|
|
|
is properly shutdown, so do not be surprised if this code does not
|
|
|
|
|
initially work for you. It may help to enable device hotplugging
|
|
|
|
|
support. As of this writing the exact hardware interface is
|
|
|
|
|
strongly in flux, so no good recommendation can be made.
|
|
|
|
|
|
2006-01-15 05:48:25 +08:00
|
|
|
config CRASH_DUMP
|
2006-03-10 12:01:08 +08:00
|
|
|
bool "Build a kdump crash kernel (EXPERIMENTAL)"
|
2006-01-15 05:48:25 +08:00
|
|
|
depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
|
|
|
|
|
help
|
|
|
|
|
Build a kernel suitable for use as a kdump capture kernel.
|
|
|
|
|
The kernel will be linked at a different address than normal, and
|
|
|
|
|
so can only be used for Kdump.
|
|
|
|
|
|
|
|
|
|
Don't change this unless you know what you are doing.
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
config EMBEDDEDBOOT
|
|
|
|
|
bool
|
|
|
|
|
depends on 8xx || 8260
|
|
|
|
|
default y
|
|
|
|
|
|
|
|
|
|
config PC_KEYBOARD
|
|
|
|
|
bool "PC PS/2 style Keyboard"
|
|
|
|
|
depends on 4xx || CPM2
|
|
|
|
|
|
|
|
|
|
config PPCBUG_NVRAM
|
|
|
|
|
bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
|
|
|
|
|
default y if PPC_PREP
|
|
|
|
|
|
|
|
|
|
config IRQ_ALL_CPUS
|
|
|
|
|
bool "Distribute interrupts on all CPUs by default"
|
|
|
|
|
depends on SMP && !MV64360
|
|
|
|
|
help
|
|
|
|
|
This option gives the kernel permission to distribute IRQs across
|
|
|
|
|
multiple CPUs. Saying N here will route all IRQs to the first
|
|
|
|
|
CPU. Generally saying Y is safe, although some problems have been
|
|
|
|
|
reported with SMP Power Macintoshes with this option enabled.
|
|
|
|
|
|
|
|
|
|
|
2005-10-29 08:46:58 +08:00
|
|
|
config NUMA
|
|
|
|
|
bool "NUMA support"
|
|
|
|
|
depends on PPC64
|
|
|
|
|
default y if SMP && PPC_PSERIES
|
|
|
|
|
|
2006-04-11 13:53:53 +08:00
|
|
|
config NODES_SHIFT
|
|
|
|
|
int
|
|
|
|
|
default "4"
|
|
|
|
|
depends on NEED_MULTIPLE_NODES
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
config ARCH_SELECT_MEMORY_MODEL
|
|
|
|
|
def_bool y
|
|
|
|
|
depends on PPC64
|
|
|
|
|
|
|
|
|
|
config ARCH_FLATMEM_ENABLE
|
2005-11-30 03:20:55 +08:00
|
|
|
def_bool y
|
|
|
|
|
depends on (PPC64 && !NUMA) || PPC32
|
2005-09-26 14:04:21 +08:00
|
|
|
|
2005-11-11 11:22:35 +08:00
|
|
|
config ARCH_SPARSEMEM_ENABLE
|
2005-09-26 14:04:21 +08:00
|
|
|
def_bool y
|
2005-11-30 03:20:55 +08:00
|
|
|
depends on PPC64
|
2005-09-26 14:04:21 +08:00
|
|
|
|
2005-11-11 11:22:35 +08:00
|
|
|
config ARCH_SPARSEMEM_DEFAULT
|
2005-09-26 14:04:21 +08:00
|
|
|
def_bool y
|
2007-02-13 08:46:06 +08:00
|
|
|
depends on (SMP && PPC_PSERIES) || PPC_PS3
|
2005-09-26 14:04:21 +08:00
|
|
|
|
2006-09-27 16:49:49 +08:00
|
|
|
config ARCH_POPULATES_NODE_MAP
|
2005-09-26 14:04:21 +08:00
|
|
|
def_bool y
|
2006-09-27 16:49:49 +08:00
|
|
|
|
|
|
|
|
source "mm/Kconfig"
|
2005-09-26 14:04:21 +08:00
|
|
|
|
2005-11-08 01:39:48 +08:00
|
|
|
config ARCH_MEMORY_PROBE
|
|
|
|
|
def_bool y
|
|
|
|
|
depends on MEMORY_HOTPLUG
|
|
|
|
|
|
2006-10-22 01:24:14 +08:00
|
|
|
# Some NUMA nodes have memory ranges that span
|
|
|
|
|
# other nodes. Even though a pfn is valid and
|
|
|
|
|
# between a node's start and end pfns, it may not
|
|
|
|
|
# reside on that node. See memmap_init_zone()
|
|
|
|
|
# for details.
|
|
|
|
|
config NODES_SPAN_OTHER_NODES
|
|
|
|
|
def_bool y
|
|
|
|
|
depends on NEED_MULTIPLE_NODES
|
|
|
|
|
|
2005-11-07 08:06:55 +08:00
|
|
|
config PPC_64K_PAGES
|
|
|
|
|
bool "64k page size"
|
2005-11-07 16:57:58 +08:00
|
|
|
depends on PPC64
|
2005-11-07 08:06:55 +08:00
|
|
|
help
|
|
|
|
|
This option changes the kernel logical page size to 64k. On machines
|
|
|
|
|
without processor support for 64k pages, the kernel will simulate
|
|
|
|
|
them by loading each individual 4k page on demand transparently,
|
|
|
|
|
while on hardware with such support, it will be used to map
|
|
|
|
|
normal application pages.
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
config SCHED_SMT
|
|
|
|
|
bool "SMT (Hyperthreading) scheduler support"
|
|
|
|
|
depends on PPC64 && SMP
|
|
|
|
|
help
|
|
|
|
|
SMT scheduler support improves the CPU scheduler's decision making
|
|
|
|
|
when dealing with POWER5 cpus at a cost of slightly increased
|
|
|
|
|
overhead in some places. If unsure say N here.
|
|
|
|
|
|
|
|
|
|
config PROC_DEVICETREE
|
2005-10-17 18:14:59 +08:00
|
|
|
bool "Support for device tree in /proc"
|
|
|
|
|
depends on PROC_FS
|
2005-09-26 14:04:21 +08:00
|
|
|
help
|
|
|
|
|
This option adds a device-tree directory under /proc which contains
|
|
|
|
|
an image of the device tree that the kernel copies from Open
|
2005-10-17 18:14:59 +08:00
|
|
|
Firmware or other boot firmware. If unsure, say Y here.
|
2005-09-26 14:04:21 +08:00
|
|
|
|
|
|
|
|
config CMDLINE_BOOL
|
|
|
|
|
bool "Default bootloader kernel arguments"
|
|
|
|
|
|
|
|
|
|
config CMDLINE
|
|
|
|
|
string "Initial kernel command string"
|
|
|
|
|
depends on CMDLINE_BOOL
|
|
|
|
|
default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
|
|
|
|
|
help
|
|
|
|
|
On some platforms, there is currently no way for the boot loader to
|
|
|
|
|
pass arguments to the kernel. For these platforms, you can supply
|
|
|
|
|
some command-line options at build time by entering them here. In
|
|
|
|
|
most cases you will need to specify the root device here.
|
|
|
|
|
|
|
|
|
|
if !44x || BROKEN
|
|
|
|
|
source kernel/power/Kconfig
|
|
|
|
|
endif
|
|
|
|
|
|
|
|
|
|
config SECCOMP
|
|
|
|
|
bool "Enable seccomp to safely compute untrusted bytecode"
|
|
|
|
|
depends on PROC_FS
|
|
|
|
|
default y
|
|
|
|
|
help
|
|
|
|
|
This kernel feature is useful for number crunching applications
|
|
|
|
|
that may need to compute untrusted bytecode during their
|
|
|
|
|
execution. By using pipes or other transports made available to
|
|
|
|
|
the process as file descriptors supporting the read/write
|
|
|
|
|
syscalls, it's possible to isolate those applications in
|
|
|
|
|
their own address space using seccomp. Once seccomp is
|
|
|
|
|
enabled via /proc/<pid>/seccomp, it cannot be disabled
|
|
|
|
|
and the task is only allowed to execute a few safe syscalls
|
|
|
|
|
defined by each seccomp mode.
|
|
|
|
|
|
|
|
|
|
If unsure, say Y. Only embedded should say N here.
|
|
|
|
|
|
|
|
|
|
endmenu
|
|
|
|
|
|
|
|
|
|
config ISA_DMA_API
|
|
|
|
|
bool
|
|
|
|
|
default y
|
|
|
|
|
|
|
|
|
|
menu "Bus options"
|
|
|
|
|
|
|
|
|
|
config ISA
|
|
|
|
|
bool "Support for ISA-bus hardware"
|
|
|
|
|
depends on PPC_PREP || PPC_CHRP
|
2005-10-26 14:47:42 +08:00
|
|
|
select PPC_I8259
|
2005-09-26 14:04:21 +08:00
|
|
|
help
|
|
|
|
|
Find out whether you have ISA slots on your motherboard. ISA is the
|
|
|
|
|
name of a bus system, i.e. the way the CPU talks to the other stuff
|
|
|
|
|
inside your box. If you have an Apple machine, say N here; if you
|
|
|
|
|
have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If
|
|
|
|
|
you have an embedded board, consult your board documentation.
|
|
|
|
|
|
2007-02-10 17:43:14 +08:00
|
|
|
config ZONE_DMA
|
|
|
|
|
bool
|
|
|
|
|
default y
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
config GENERIC_ISA_DMA
|
|
|
|
|
bool
|
|
|
|
|
depends on PPC64 || POWER4 || 6xx && !CPM2
|
|
|
|
|
default y
|
|
|
|
|
|
2006-08-25 12:16:30 +08:00
|
|
|
config MPIC
|
|
|
|
|
bool
|
|
|
|
|
default n
|
|
|
|
|
|
|
|
|
|
config MPIC_WEIRD
|
|
|
|
|
bool
|
|
|
|
|
default n
|
|
|
|
|
|
2005-10-26 14:47:42 +08:00
|
|
|
config PPC_I8259
|
|
|
|
|
bool
|
|
|
|
|
default n
|
|
|
|
|
|
2005-10-26 14:36:55 +08:00
|
|
|
config PPC_INDIRECT_PCI
|
|
|
|
|
bool
|
|
|
|
|
depends on PCI
|
2006-01-15 06:57:39 +08:00
|
|
|
default y if 40x || 44x
|
2005-10-26 14:36:55 +08:00
|
|
|
default n
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
config EISA
|
|
|
|
|
bool
|
|
|
|
|
|
|
|
|
|
config SBUS
|
|
|
|
|
bool
|
|
|
|
|
|
2006-01-11 11:43:56 +08:00
|
|
|
config FSL_SOC
|
|
|
|
|
bool
|
|
|
|
|
|
2007-03-08 04:48:45 +08:00
|
|
|
config FSL_PCIE
|
|
|
|
|
bool
|
|
|
|
|
depends on PPC_86xx
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
# Yes MCA RS/6000s exist but Linux-PPC does not currently support any
|
|
|
|
|
config MCA
|
|
|
|
|
bool
|
|
|
|
|
|
|
|
|
|
config PCI
|
2006-08-09 23:37:28 +08:00
|
|
|
bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
|
2007-03-04 14:04:44 +08:00
|
|
|
|| PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
|
|
|
|
|
|| MPC7448HPC2 || PPC_PS3
|
2006-08-09 23:37:28 +08:00
|
|
|
default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx \
|
|
|
|
|
&& !PPC_85xx && !PPC_86xx
|
2005-09-26 14:04:21 +08:00
|
|
|
default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
|
|
|
|
|
default PCI_QSPAN if !4xx && !CPM2 && 8xx
|
|
|
|
|
help
|
|
|
|
|
Find out whether your system includes a PCI bus. PCI is the name of
|
|
|
|
|
a bus system, i.e. the way the CPU talks to the other stuff inside
|
|
|
|
|
your box. If you say Y here, the kernel will include drivers and
|
|
|
|
|
infrastructure code to support PCI bus devices.
|
|
|
|
|
|
|
|
|
|
config PCI_DOMAINS
|
|
|
|
|
bool
|
|
|
|
|
default PCI
|
|
|
|
|
|
|
|
|
|
config PCI_QSPAN
|
|
|
|
|
bool "QSpan PCI"
|
|
|
|
|
depends on !4xx && !CPM2 && 8xx
|
2005-10-26 14:47:42 +08:00
|
|
|
select PPC_I8259
|
2005-09-26 14:04:21 +08:00
|
|
|
help
|
|
|
|
|
Say Y here if you have a system based on a Motorola 8xx-series
|
|
|
|
|
embedded processor with a QSPAN PCI interface, otherwise say N.
|
|
|
|
|
|
|
|
|
|
config PCI_8260
|
|
|
|
|
bool
|
|
|
|
|
depends on PCI && 8260
|
2005-10-26 14:36:55 +08:00
|
|
|
select PPC_INDIRECT_PCI
|
2005-09-26 14:04:21 +08:00
|
|
|
default y
|
|
|
|
|
|
|
|
|
|
config 8260_PCI9
|
2006-06-02 11:36:04 +08:00
|
|
|
bool "Enable workaround for MPC826x erratum PCI 9"
|
2005-09-26 14:04:21 +08:00
|
|
|
depends on PCI_8260 && !ADS8272
|
|
|
|
|
default y
|
|
|
|
|
|
|
|
|
|
choice
|
2006-06-02 11:36:04 +08:00
|
|
|
prompt "IDMA channel for PCI 9 workaround"
|
2005-09-26 14:04:21 +08:00
|
|
|
depends on 8260_PCI9
|
|
|
|
|
|
|
|
|
|
config 8260_PCI9_IDMA1
|
|
|
|
|
bool "IDMA1"
|
|
|
|
|
|
|
|
|
|
config 8260_PCI9_IDMA2
|
|
|
|
|
bool "IDMA2"
|
|
|
|
|
|
|
|
|
|
config 8260_PCI9_IDMA3
|
|
|
|
|
bool "IDMA3"
|
|
|
|
|
|
|
|
|
|
config 8260_PCI9_IDMA4
|
|
|
|
|
bool "IDMA4"
|
|
|
|
|
|
|
|
|
|
endchoice
|
|
|
|
|
|
2006-06-08 05:05:46 +08:00
|
|
|
source "drivers/pci/pcie/Kconfig"
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
source "drivers/pci/Kconfig"
|
|
|
|
|
|
|
|
|
|
source "drivers/pcmcia/Kconfig"
|
|
|
|
|
|
|
|
|
|
source "drivers/pci/hotplug/Kconfig"
|
|
|
|
|
|
|
|
|
|
endmenu
|
|
|
|
|
|
|
|
|
|
menu "Advanced setup"
|
|
|
|
|
depends on PPC32
|
|
|
|
|
|
|
|
|
|
config ADVANCED_OPTIONS
|
|
|
|
|
bool "Prompt for advanced kernel configuration options"
|
|
|
|
|
help
|
|
|
|
|
This option will enable prompting for a variety of advanced kernel
|
|
|
|
|
configuration options. These options can cause the kernel to not
|
|
|
|
|
work if they are set incorrectly, but can be used to optimize certain
|
|
|
|
|
aspects of kernel memory management.
|
|
|
|
|
|
|
|
|
|
Unless you know what you are doing, say N here.
|
|
|
|
|
|
|
|
|
|
comment "Default settings for advanced configuration options are used"
|
|
|
|
|
depends on !ADVANCED_OPTIONS
|
|
|
|
|
|
|
|
|
|
config HIGHMEM_START_BOOL
|
|
|
|
|
bool "Set high memory pool address"
|
|
|
|
|
depends on ADVANCED_OPTIONS && HIGHMEM
|
|
|
|
|
help
|
|
|
|
|
This option allows you to set the base address of the kernel virtual
|
|
|
|
|
area used to map high memory pages. This can be useful in
|
|
|
|
|
optimizing the layout of kernel virtual memory.
|
|
|
|
|
|
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
|
|
|
|
|
|
config HIGHMEM_START
|
|
|
|
|
hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
|
|
|
|
|
default "0xfe000000"
|
|
|
|
|
|
|
|
|
|
config LOWMEM_SIZE_BOOL
|
|
|
|
|
bool "Set maximum low memory"
|
|
|
|
|
depends on ADVANCED_OPTIONS
|
|
|
|
|
help
|
|
|
|
|
This option allows you to set the maximum amount of memory which
|
|
|
|
|
will be used as "low memory", that is, memory which the kernel can
|
|
|
|
|
access directly, without having to set up a kernel virtual mapping.
|
|
|
|
|
This can be useful in optimizing the layout of kernel virtual
|
|
|
|
|
memory.
|
|
|
|
|
|
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
|
|
|
|
|
|
config LOWMEM_SIZE
|
|
|
|
|
hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
|
|
|
|
|
default "0x30000000"
|
|
|
|
|
|
|
|
|
|
config KERNEL_START_BOOL
|
|
|
|
|
bool "Set custom kernel base address"
|
|
|
|
|
depends on ADVANCED_OPTIONS
|
|
|
|
|
help
|
|
|
|
|
This option allows you to set the kernel virtual address at which
|
|
|
|
|
the kernel will map low memory (the kernel image will be linked at
|
|
|
|
|
this address). This can be useful in optimizing the virtual memory
|
|
|
|
|
layout of the system.
|
|
|
|
|
|
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
|
|
|
|
|
|
config KERNEL_START
|
|
|
|
|
hex "Virtual address of kernel base" if KERNEL_START_BOOL
|
|
|
|
|
default "0xc0000000"
|
|
|
|
|
|
|
|
|
|
config TASK_SIZE_BOOL
|
|
|
|
|
bool "Set custom user task size"
|
|
|
|
|
depends on ADVANCED_OPTIONS
|
|
|
|
|
help
|
|
|
|
|
This option allows you to set the amount of virtual address space
|
|
|
|
|
allocated to user tasks. This can be useful in optimizing the
|
|
|
|
|
virtual memory layout of the system.
|
|
|
|
|
|
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
|
|
|
|
|
|
config TASK_SIZE
|
|
|
|
|
hex "Size of user task space" if TASK_SIZE_BOOL
|
|
|
|
|
default "0x80000000"
|
|
|
|
|
|
|
|
|
|
config CONSISTENT_START_BOOL
|
|
|
|
|
bool "Set custom consistent memory pool address"
|
|
|
|
|
depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
|
|
|
|
|
help
|
|
|
|
|
This option allows you to set the base virtual address
|
2006-10-04 04:21:02 +08:00
|
|
|
of the consistent memory pool. This pool of virtual
|
2005-09-26 14:04:21 +08:00
|
|
|
memory is used to make consistent memory allocations.
|
|
|
|
|
|
|
|
|
|
config CONSISTENT_START
|
|
|
|
|
hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
|
|
|
|
|
default "0xff100000" if NOT_COHERENT_CACHE
|
|
|
|
|
|
|
|
|
|
config CONSISTENT_SIZE_BOOL
|
|
|
|
|
bool "Set custom consistent memory pool size"
|
|
|
|
|
depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
|
|
|
|
|
help
|
2006-10-04 04:21:02 +08:00
|
|
|
This option allows you to set the size of the
|
2005-09-26 14:04:21 +08:00
|
|
|
consistent memory pool. This pool of virtual memory
|
|
|
|
|
is used to make consistent memory allocations.
|
|
|
|
|
|
|
|
|
|
config CONSISTENT_SIZE
|
|
|
|
|
hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
|
|
|
|
|
default "0x00200000" if NOT_COHERENT_CACHE
|
|
|
|
|
|
|
|
|
|
config BOOT_LOAD_BOOL
|
|
|
|
|
bool "Set the boot link/load address"
|
|
|
|
|
depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
|
|
|
|
|
help
|
|
|
|
|
This option allows you to set the initial load address of the zImage
|
|
|
|
|
or zImage.initrd file. This can be useful if you are on a board
|
|
|
|
|
which has a small amount of memory.
|
|
|
|
|
|
|
|
|
|
Say N here unless you know what you are doing.
|
|
|
|
|
|
|
|
|
|
config BOOT_LOAD
|
|
|
|
|
hex "Link/load address for booting" if BOOT_LOAD_BOOL
|
|
|
|
|
default "0x00400000" if 40x || 8xx || 8260
|
|
|
|
|
default "0x01000000" if 44x
|
|
|
|
|
default "0x00800000"
|
|
|
|
|
|
|
|
|
|
config PIN_TLB
|
|
|
|
|
bool "Pinned Kernel TLBs (860 ONLY)"
|
|
|
|
|
depends on ADVANCED_OPTIONS && 8xx
|
|
|
|
|
endmenu
|
|
|
|
|
|
2005-09-30 14:16:52 +08:00
|
|
|
if PPC64
|
|
|
|
|
config KERNEL_START
|
|
|
|
|
hex
|
2005-09-30 15:24:15 +08:00
|
|
|
default "0xc000000000000000"
|
2005-09-30 14:16:52 +08:00
|
|
|
endif
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
source "net/Kconfig"
|
|
|
|
|
|
|
|
|
|
source "drivers/Kconfig"
|
|
|
|
|
|
|
|
|
|
source "fs/Kconfig"
|
|
|
|
|
|
|
|
|
|
# XXX source "arch/ppc/8xx_io/Kconfig"
|
|
|
|
|
|
|
|
|
|
# XXX source "arch/ppc/8260_io/Kconfig"
|
|
|
|
|
|
[POWERPC] Add QUICC Engine (QE) infrastructure
Add QUICC Engine (QE) configuration, header files, and
QE management and library code that are used by QE devices
drivers.
Includes Leo's modifications up to, and including, the
platform_device to of_device adaptation:
"The series of patches add generic QE infrastructure called
qe_lib, and MPC8360EMDS board support. Qe_lib is used by
QE device drivers such as ucc_geth driver.
This version updates QE interrupt controller to use new irq
mapping mechanism, addresses all the comments received with
last submission and includes some style fixes.
v2: Change to use device tree for BCSR and MURAM;
Remove I/O port interrupt handling code as it is not generic
enough.
v3: Address comments from Kumar; Update definition of several
device tree nodes; Copyright style change."
In addition, the following changes have been made:
o removed typedefs
o uint -> u32 conversions
o removed following defines:
QE_SIZEOF_BD, BD_BUFFER_ARG, BD_BUFFER_CLEAR, BD_BUFFER,
BD_STATUS_AND_LENGTH_SET, BD_STATUS_AND_LENGTH, and BD_BUFFER_SET
because they hid sizeof/in_be32/out_be32 operations from the reader.
o fixed qe_snums_init() serial num assignment to use a const array
o made CONFIG_UCC_FAST select UCC_SLOW
o reduced NR_QE_IC_INTS from 128 to 64
o remove _IO_BASE, etc. defines (not used)
o removed irrelevant comments, added others to resemble removed BD_ defines
o realigned struct definitions in headers
o various other style fixes including things like pinMask -> pin_mask
o fixed a ton of whitespace issues
o marked ioregs as __be32/__be16
o removed platform_device code and redundant get_qe_base()
o removed redundant comments
o added cpu_relax() to qe_reset
o uncasted all get_property() assignments
o eliminated unneeded casts
o eliminated immrbar_phys_to_virt (not used)
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Shlomi Gridish <gridish@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-04 12:10:46 +08:00
|
|
|
source "arch/powerpc/sysdev/qe_lib/Kconfig"
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
|
|
|
|
|
source "lib/Kconfig"
|
|
|
|
|
|
2005-11-07 16:59:14 +08:00
|
|
|
menu "Instrumentation Support"
|
|
|
|
|
depends on EXPERIMENTAL
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
source "arch/powerpc/oprofile/Kconfig"
|
|
|
|
|
|
2005-11-07 16:59:14 +08:00
|
|
|
config KPROBES
|
|
|
|
|
bool "Kprobes (EXPERIMENTAL)"
|
2007-02-07 12:55:19 +08:00
|
|
|
depends on !BOOKE && !4xx && KALLSYMS && EXPERIMENTAL && MODULES
|
2005-11-07 16:59:14 +08:00
|
|
|
help
|
|
|
|
|
Kprobes allows you to trap at almost any kernel address and
|
|
|
|
|
execute a callback function. register_kprobe() establishes
|
|
|
|
|
a probepoint and specifies the callback. Kprobes is useful
|
|
|
|
|
for kernel debugging, non-intrusive instrumentation and testing.
|
|
|
|
|
If in doubt, say "N".
|
|
|
|
|
endmenu
|
|
|
|
|
|
2005-09-26 14:04:21 +08:00
|
|
|
source "arch/powerpc/Kconfig.debug"
|
|
|
|
|
|
|
|
|
|
source "security/Kconfig"
|
|
|
|
|
|
|
|
|
|
config KEYS_COMPAT
|
|
|
|
|
bool
|
|
|
|
|
depends on COMPAT && KEYS
|
|
|
|
|
default y
|
|
|
|
|
|
|
|
|
|
source "crypto/Kconfig"
|