X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Fpowerpc%2FKconfig;h=a0d1146a057851096e00c52dd092128709d99554;hb=9fffb55f66127b52c937ede5196ebfa0c0d50bce;hp=de88972c58961a99664aab3a540072d7d35677ef;hpb=84c3d4aaec3338201b449034beac41635866bddf;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index de88972..a0d1146 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -19,8 +19,8 @@ config WORD_SIZE default 64 if PPC64 default 32 if !PPC64 -config PPC_MERGE - def_bool y +config ARCH_PHYS_ADDR_T_64BIT + def_bool PPC64 || PHYS_64BIT config MMU bool @@ -108,15 +108,23 @@ config ARCH_NO_VIRT_TO_BUS config PPC bool default y + select HAVE_FTRACE_MCOUNT_RECORD select HAVE_DYNAMIC_FTRACE - select HAVE_FTRACE + select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_GRAPH_TRACER + select ARCH_WANT_OPTIONAL_GPIOLIB select HAVE_IDE + select HAVE_IOREMAP_PROT + select HAVE_EFFICIENT_UNALIGNED_ACCESS select HAVE_KPROBES + select HAVE_ARCH_KGDB select HAVE_KRETPROBES + select HAVE_ARCH_TRACEHOOK select HAVE_LMB select HAVE_DMA_ATTRS if PPC64 select USE_GENERIC_SMP_HELPERS if SMP select HAVE_OPROFILE + select HAVE_SYSCALL_WRAPPERS if PPC64 config EARLY_PRINTK bool @@ -137,7 +145,7 @@ config GENERIC_NVRAM bool default y if PPC32 -config SCHED_NO_NO_OMIT_FRAME_POINTER +config SCHED_OMIT_FRAME_POINTER bool default y @@ -173,6 +181,10 @@ config SYS_SUPPORTS_APM_EMULATION default y if PMAC_APM_EMU bool +config DTC + bool + default y + config DEFAULT_UIMAGE bool help @@ -199,7 +211,7 @@ config ARCH_HIBERNATION_POSSIBLE config ARCH_SUSPEND_POSSIBLE def_bool y - depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 + depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx config PPC_DCR_NATIVE bool @@ -220,8 +232,13 @@ config PPC_OF_PLATFORM_PCI depends on PPC64 # not supported on 32 bits yet default n +config ARCH_SUPPORTS_DEBUG_PAGEALLOC + def_bool y + source "init/Kconfig" +source "kernel/Kconfig.freezer" + source "arch/powerpc/sysdev/Kconfig" source "arch/powerpc/platforms/Kconfig" @@ -279,6 +296,10 @@ config IOMMU_VMERGE config IOMMU_HELPER def_bool PPC64 +config PPC_NEED_DMA_SYNC_OPS + def_bool y + depends on NOT_COHERENT_CACHE + config HOTPLUG_CPU bool "Support for enabling/disabling CPUs" depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) @@ -299,7 +320,7 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE config KEXEC bool "kexec system call (EXPERIMENTAL)" - depends on (PPC_PRPMC2800 || PPC_MULTIPLATFORM) && EXPERIMENTAL + depends on PPC_BOOK3S && 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 @@ -316,13 +337,12 @@ config KEXEC config CRASH_DUMP bool "Build a kdump crash kernel" - depends on PPC_MULTIPLATFORM && PPC64 + depends on PPC64 || 6xx + select RELOCATABLE if PPC64 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. + The same kernel binary can be used as production kernel and dump + capture kernel. config PHYP_DUMP bool "Hypervisor-assisted dump (EXPERIMENTAL)" @@ -330,7 +350,7 @@ config PHYP_DUMP help Hypervisor-assisted dump is meant to be a kdump replacement offering robustness and speed not possible without system - hypervisor assistence. + hypervisor assistance. If unsure, say "N" @@ -397,21 +417,81 @@ config PPC_HAS_HASH_64K depends on PPC64 default n +config STDBINUTILS + bool "Using standard binutils settings" + depends on 44x + default y + help + Turning this option off allows you to select 256KB PAGE_SIZE on 44x. + Note, that kernel will be able to run only those applications, + which had been compiled using binutils later than 2.17.50.0.3 with + '-zmax-page-size' set to 256K (the default is 64K). Or, if using + the older binutils, you can patch them with a trivial patch, which + changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. + +choice + prompt "Page size" + default PPC_4K_PAGES + help + Select the kernel logical page size. Increasing the page size + will reduce software overhead at each page boundary, allow + hardware prefetch mechanisms to be more effective, and allow + larger dma transfers increasing IO efficiency and reducing + overhead. However the utilization of memory will increase. + For example, each cached file will using a multiple of the + page size to hold its contents and the difference between the + end of file and the end of page is wasted. + + Some dedicated systems, such as software raid serving with + accelerated calculations, have shown significant increases. + + If you configure a 64 bit kernel for 64k pages but the + processor does not support them, then the kernel will simulate + them with 4k pages, loading them on demand, but with the + reduced software overhead and larger internal fragmentation. + For the 32 bit kernel, a large page option will not be offered + unless it is supported by the configured processor. + + If unsure, choose 4K_PAGES. + +config PPC_4K_PAGES + bool "4k page size" + +config PPC_16K_PAGES + bool "16k page size" if 44x + config PPC_64K_PAGES - bool "64k page size" - depends on PPC64 - select PPC_HAS_HASH_64K + bool "64k page size" if 44x || PPC_STD_MMU_64 + select PPC_HAS_HASH_64K if PPC_STD_MMU_64 + +config PPC_256K_PAGES + bool "256k page size" if 44x + depends on !STDBINUTILS 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. + Make the page size 256k. + + As the ELF standard only requires alignment to support page + sizes up to 64k, you will need to compile all of your user + space applications with a non-standard binutils settings + (see the STDBINUTILS description for details). + + Say N unless you know what you are doing. + +endchoice config FORCE_MAX_ZONEORDER int "Maximum zone order" - default "9" if PPC_64K_PAGES - default "13" if PPC64 && !PPC_64K_PAGES + range 9 64 if PPC_STD_MMU_64 && PPC_64K_PAGES + default "9" if PPC_STD_MMU_64 && PPC_64K_PAGES + range 13 64 if PPC_STD_MMU_64 && !PPC_64K_PAGES + default "13" if PPC_STD_MMU_64 && !PPC_64K_PAGES + range 9 64 if PPC_STD_MMU_32 && PPC_16K_PAGES + default "9" if PPC_STD_MMU_32 && PPC_16K_PAGES + range 7 64 if PPC_STD_MMU_32 && PPC_64K_PAGES + default "7" if PPC_STD_MMU_32 && PPC_64K_PAGES + range 5 64 if PPC_STD_MMU_32 && PPC_256K_PAGES + default "5" if PPC_STD_MMU_32 && PPC_256K_PAGES + range 11 64 default "11" help The kernel memory allocator divides physically contiguous memory @@ -430,7 +510,7 @@ config FORCE_MAX_ZONEORDER config PPC_SUBPAGE_PROT bool "Support setting protections for 4k subpages" - depends on PPC_64K_PAGES + depends on PPC_STD_MMU_64 && PPC_64K_PAGES help This option adds support for a system call to allow user programs to set access permissions (read/write, readonly, or no access) @@ -549,6 +629,7 @@ config FSL_SOC config FSL_PCI bool select PPC_INDIRECT_PCI + select PCI_QUIRKS config 4xx_SOC bool @@ -568,11 +649,15 @@ config FSL_GTM config MCA bool +# Platforms that what PCI turned unconditionally just do select PCI +# in their config node. Platforms that want to choose at config +# time should select PPC_PCI_CHOICE +config PPC_PCI_CHOICE + bool + config PCI - bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \ - || PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \ - || PPC_PS3 || 44x - default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \ + bool "PCI support" if PPC_PCI_CHOICE + default y if !40x && !CPM2 && !8xx && !PPC_83xx \ && !PPC_85xx && !PPC_86xx default PCI_PERMEDIA if !4xx && !CPM2 && !8xx default PCI_QSPAN if !4xx && !CPM2 && 8xx @@ -681,6 +766,23 @@ config LOWMEM_SIZE hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL default "0x30000000" +config LOWMEM_CAM_NUM_BOOL + bool "Set number of CAMs to use to map low memory" + depends on ADVANCED_OPTIONS && FSL_BOOKE + help + This option allows you to set the maximum number of CAM slots that + will be used to map low memory. There are a limited number of slots + available and even more limited number that will fit in the L1 MMU. + However, using more entries will allow mapping more low memory. This + can be useful in optimizing the layout of kernel virtual memory. + + Say N here unless you know what you are doing. + +config LOWMEM_CAM_NUM + depends on FSL_BOOKE + int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL + default 3 + config RELOCATABLE bool "Build a relocatable kernel (EXPERIMENTAL)" depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE @@ -745,7 +847,7 @@ config PHYSICAL_START config PHYSICAL_ALIGN hex - default "0x10000000" if FSL_BOOKE + default "0x04000000" if FSL_BOOKE help This value puts the alignment restrictions on physical address where kernel is loaded and run from. Kernel is compiled for an @@ -766,47 +868,33 @@ config TASK_SIZE default "0x80000000" if PPC_PREP || PPC_8xx default "0xc0000000" -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 - of the consistent memory pool. This pool of virtual - memory is used to make consistent memory allocations. - -config CONSISTENT_START - hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL - default "0xfd000000" if (NOT_COHERENT_CACHE && 8xx) - 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 - This option allows you to set the size of the - 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 PIN_TLB bool "Pinned Kernel TLBs (860 ONLY)" depends on ADVANCED_OPTIONS && 8xx endmenu if PPC64 +config RELOCATABLE + bool "Build a relocatable kernel" + help + This builds a kernel image that is capable of running anywhere + in the RMA (real memory area) at any 16k-aligned base address. + The kernel is linked as a position-independent executable (PIE) + and contains dynamic relocations which are processed early + in the bootup process. + + One use is for the kexec on panic case where the recovery kernel + must live at a different physical address than the primary + kernel. + config PAGE_OFFSET hex default "0xc000000000000000" config KERNEL_START hex - default "0xc000000002000000" if CRASH_DUMP default "0xc000000000000000" config PHYSICAL_START hex - default "0x02000000" if CRASH_DUMP default "0x00000000" endif @@ -816,10 +904,6 @@ source "drivers/Kconfig" source "fs/Kconfig" -# XXX source "arch/ppc/8xx_io/Kconfig" - -# XXX source "arch/ppc/8260_io/Kconfig" - source "arch/powerpc/sysdev/qe_lib/Kconfig" source "lib/Kconfig" @@ -838,6 +922,7 @@ source "crypto/Kconfig" config PPC_CLOCK bool default n + select HAVE_CLK config PPC_LIB_RHEAP bool