diff options
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 179 |
1 files changed, 137 insertions, 42 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 1189d8d6170d..3934e2659407 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -49,6 +49,19 @@ config IRQ_PER_CPU bool default y +config STACKTRACE_SUPPORT + bool + default y + +config TRACE_IRQFLAGS_SUPPORT + bool + depends on PPC64 + default y + +config LOCKDEP_SUPPORT + bool + default y + config RWSEM_GENERIC_SPINLOCK bool @@ -81,6 +94,11 @@ config GENERIC_FIND_NEXT_BIT bool default y +config GENERIC_GPIO + bool + help + Generic GPIO API support + config ARCH_NO_VIRT_TO_BUS def_bool PPC64 @@ -91,6 +109,7 @@ config PPC select HAVE_OPROFILE select HAVE_KPROBES select HAVE_KRETPROBES + select HAVE_LMB config EARLY_PRINTK bool @@ -210,15 +229,6 @@ 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 - default "9" if PPC_64K_PAGES - default "13" - config HUGETLB_PAGE_SIZE_VARIABLE bool depends on HUGETLB_PAGE @@ -307,6 +317,16 @@ config CRASH_DUMP Don't change this unless you know what you are doing. +config PHYP_DUMP + bool "Hypervisor-assisted dump (EXPERIMENTAL)" + depends on PPC_PSERIES && EXPERIMENTAL + help + Hypervisor-assisted dump is meant to be a kdump replacement + offering robustness and speed not possible without system + hypervisor assistence. + + If unsure, say "N" + config PPCBUG_NVRAM bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC default y if PPC_PREP @@ -381,6 +401,26 @@ config PPC_64K_PAGES while on hardware with such support, it will be used to map normal application pages. +config FORCE_MAX_ZONEORDER + int "Maximum zone order" + default "9" if PPC_64K_PAGES + default "13" if PPC64 && !PPC_64K_PAGES + default "11" + help + The kernel memory allocator divides physically contiguous memory + blocks into "zones", where each zone is a power of two number of + pages. This option selects the largest power of two that the kernel + keeps in the memory allocator. If you need to allocate very large + blocks of physically contiguous memory, then you may need to + increase this value. + + This config option is actually maximum order plus one. For example, + a value of 11 means that the largest free memory block is 2^10 pages. + + The page size is not necessarily 4KB. For example, on 64-bit + systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep + this in mind when choosing a value for this option. + config PPC_SUBPAGE_PROT bool "Support setting protections for 4k subpages" depends on PPC_64K_PAGES @@ -490,6 +530,14 @@ config FSL_PCI bool select PPC_INDIRECT_PCI +config 4xx_SOC + bool + +config FSL_LBC + bool + help + Freescale Localbus support + # Yes MCA RS/6000s exist but Linux-PPC does not currently support any config MCA bool @@ -560,6 +608,19 @@ source "drivers/pcmcia/Kconfig" source "drivers/pci/hotplug/Kconfig" +config HAS_RAPIDIO + bool + default n + +config RAPIDIO + bool "RapidIO support" + depends on HAS_RAPIDIO + help + If you say Y here, the kernel will include drivers and + infrastructure code to support RapidIO interconnect devices. + +source "drivers/rapidio/Kconfig" + endmenu menu "Advanced setup" @@ -578,20 +639,6 @@ config ADVANCED_OPTIONS 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 @@ -608,21 +655,76 @@ config LOWMEM_SIZE hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL default "0x30000000" +config RELOCATABLE + bool "Build a relocatable kernel (EXPERIMENTAL)" + depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE + help + This builds a kernel image that is capable of running at the + location the kernel is loaded at (some alignment restrictions may + exist). + + One use is for the kexec on panic case where the recovery kernel + must live at a different physical address than the primary + kernel. + + Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address + it has been loaded at and the compile time physical addresses + CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START + setting can still be useful to bootwrappers that need to know the + load location of the kernel (eg. u-boot/mkimage). + +config PAGE_OFFSET_BOOL + bool "Set custom page offset address" + depends on ADVANCED_OPTIONS + help + This option allows you to set the kernel virtual address at which + the kernel will map low memory. This can be useful in optimizing + the virtual memory layout of the system. + + Say N here unless you know what you are doing. + +config PAGE_OFFSET + hex "Virtual address of memory base" if PAGE_OFFSET_BOOL + default "0xc0000000" + 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. + the kernel will be loaded. Normally this should match PAGE_OFFSET + however there are times (like kdump) that one might not want them + to be the same. Say N here unless you know what you are doing. config KERNEL_START hex "Virtual address of kernel base" if KERNEL_START_BOOL + default PAGE_OFFSET if PAGE_OFFSET_BOOL + default "0xc2000000" if CRASH_DUMP default "0xc0000000" +config PHYSICAL_START_BOOL + bool "Set physical address where the kernel is loaded" + depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE + help + This gives the physical address where the kernel is loaded. + + Say N here unless you know what you are doing. + +config PHYSICAL_START + hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL + default "0x02000000" if PPC_STD_MMU && CRASH_DUMP + default "0x00000000" + +config PHYSICAL_ALIGN + hex + default "0x10000000" 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 + address which meets above alignment restriction. + config TASK_SIZE_BOOL bool "Set custom user task size" depends on ADVANCED_OPTIONS @@ -663,31 +765,23 @@ 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 if PPC64 +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 source "net/Kconfig" @@ -722,3 +816,4 @@ config PPC_CLOCK config PPC_LIB_RHEAP bool +source "arch/powerpc/kvm/Kconfig" |