diff options
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 1243 |
1 files changed, 669 insertions, 574 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index df338c5cc91..80b94b0add1 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -1,32 +1,60 @@ -# For a description of the syntax of this configuration file, -# see Documentation/kbuild/kconfig-language.txt. -# - -mainmenu "Linux/PowerPC Kernel Configuration" - -config PPC64 - bool "64-bit kernel" - default n - help - This option selects whether a 32-bit or a 64-bit kernel - will be built. +source "arch/powerpc/platforms/Kconfig.cputype" config PPC32 bool default y if !PPC64 +config 32BIT + bool + default y if PPC32 + config 64BIT bool default y if PPC64 -config PPC_MERGE - def_bool y +config WORD_SIZE + int + default 64 if PPC64 + default 32 if !PPC64 + +config ARCH_PHYS_ADDR_T_64BIT + def_bool PPC64 || PHYS_64BIT + +config ARCH_DMA_ADDR_T_64BIT + def_bool ARCH_PHYS_ADDR_T_64BIT config MMU bool default y -config GENERIC_HARDIRQS +config HAVE_SETUP_PER_CPU_AREA + def_bool PPC64 + +config NEED_PER_CPU_EMBED_FIRST_CHUNK + def_bool PPC64 + +config NR_IRQS + int "Number of virtual interrupt numbers" + range 32 32768 + default "512" + help + This defines the number of virtual interrupt numbers the kernel + can manage. Virtual interrupt numbers are what you see in + /proc/interrupts. If you configure your system to have too few, + drivers will fail to load or worse - handle with care. + +config STACKTRACE_SUPPORT + bool + default y + +config HAVE_LATENCYTOP_SUPPORT + def_bool y + +config TRACE_IRQFLAGS_SUPPORT + bool + default y + +config LOCKDEP_SUPPORT bool default y @@ -37,21 +65,105 @@ config RWSEM_XCHGADD_ALGORITHM bool default y -config GENERIC_CALIBRATE_DELAY +config GENERIC_LOCKBREAK + bool + default y + depends on SMP && PREEMPT + +config ARCH_HAS_ILOG2_U32 + bool + default y + +config ARCH_HAS_ILOG2_U64 + bool + default y if 64BIT + +config GENERIC_HWEIGHT bool default y config PPC bool default y + select ARCH_MIGHT_HAVE_PC_PARPORT + select ARCH_MIGHT_HAVE_PC_SERIO + select BINFMT_ELF + select OF + select OF_EARLY_FLATTREE + select OF_RESERVED_MEM + select HAVE_FTRACE_MCOUNT_RECORD + select HAVE_DYNAMIC_FTRACE + select HAVE_FUNCTION_TRACER + select HAVE_FUNCTION_GRAPH_TRACER + select SYSCTL_EXCEPTION_TRACE + select ARCH_WANT_OPTIONAL_GPIOLIB + select VIRT_TO_BUS if !PPC64 + select HAVE_IDE + select HAVE_IOREMAP_PROT + select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN + select HAVE_KPROBES + select HAVE_ARCH_KGDB + select HAVE_KRETPROBES + select HAVE_ARCH_TRACEHOOK + select HAVE_MEMBLOCK + select HAVE_MEMBLOCK_NODE_MAP + select HAVE_DMA_ATTRS + select HAVE_DMA_API_DEBUG + select HAVE_OPROFILE + select HAVE_DEBUG_KMEMLEAK + select GENERIC_ATOMIC64 if PPC32 + select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE + select HAVE_PERF_EVENTS + select HAVE_REGS_AND_STACK_ACCESS_API + select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 + select ARCH_WANT_IPC_PARSE_VERSION + select SPARSE_IRQ + select IRQ_DOMAIN + select GENERIC_IRQ_SHOW + select GENERIC_IRQ_SHOW_LEVEL + select IRQ_FORCED_THREADING + select HAVE_RCU_TABLE_FREE if SMP + select HAVE_SYSCALL_TRACEPOINTS + select HAVE_BPF_JIT if PPC64 + select HAVE_ARCH_JUMP_LABEL + select ARCH_HAVE_NMI_SAFE_CMPXCHG + select GENERIC_SMP_IDLE_THREAD + select GENERIC_CMOS_UPDATE + select GENERIC_TIME_VSYSCALL_OLD + select GENERIC_CLOCKEVENTS + select GENERIC_CLOCKEVENTS_BROADCAST if SMP + select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select GENERIC_STRNCPY_FROM_USER + select GENERIC_STRNLEN_USER + select HAVE_MOD_ARCH_SPECIFIC + select MODULES_USE_ELF_RELA + select CLONE_BACKWARDS + select ARCH_USE_BUILTIN_BSWAP + select OLD_SIGSUSPEND + select OLD_SIGACTION if PPC32 + select HAVE_DEBUG_STACKOVERFLOW + select HAVE_IRQ_EXIT_ON_IRQ_STACK + select ARCH_USE_CMPXCHG_LOCKREF if PPC64 + select HAVE_ARCH_AUDITSYSCALL + select ARCH_SUPPORTS_ATOMIC_RMW + +config GENERIC_CSUM + def_bool CPU_LITTLE_ENDIAN config EARLY_PRINTK bool default y +config PANIC_TIMEOUT + int + default 180 + config COMPAT bool default y if PPC64 + select COMPAT_BINFMT_ELF + select ARCH_WANT_OLD_COMPAT_IPC + select COMPAT_OLD_SIGACTION config SYSVIPC_COMPAT bool @@ -63,13 +175,13 @@ config GENERIC_NVRAM bool default y if PPC32 -config SCHED_NO_NO_OMIT_FRAME_POINTER +config SCHED_OMIT_FRAME_POINTER bool default y config ARCH_MAY_HAVE_PC_FDC bool - default y + default !PPC_PSERIES || PCI config PPC_OF def_bool y @@ -83,427 +195,103 @@ config GENERIC_TBSYNC default y if PPC32 && SMP default n -menu "Processor support" -choice - prompt "Processor Type" - depends on PPC32 - default 6xx - -config CLASSIC32 - bool "6xx/7xx/74xx" - select PPC_FPU - select 6xx - help - There are four families of PowerPC chips supported. The more common - types (601, 603, 604, 740, 750, 7400), the Motorola embedded - versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC - embedded versions (403 and 405) and the high end 64 bit Power - processors (POWER 3, POWER4, and IBM PPC970 also known as G5). - - Unless you are building a kernel for one of the embedded processor - systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx. - Note that the kernel runs in 32-bit mode even on 64-bit chips. - -config PPC_52xx - bool "Freescale 52xx" - select 6xx - select PPC_FPU - -config PPC_82xx - bool "Freescale 82xx" - select 6xx - select PPC_FPU - -config PPC_83xx - bool "Freescale 83xx" - select 6xx - select FSL_SOC - select 83xx - select PPC_FPU - -config 40x - bool "AMCC 40x" - -config 44x - bool "AMCC 44x" - -config 8xx - bool "Freescale 8xx" - -config E200 - bool "Freescale e200" - -config E500 - bool "Freescale e500" -endchoice - -config POWER4_ONLY - bool "Optimize for POWER4" - depends on PPC64 - default n - ---help--- - Cause the compiler to optimize for POWER4/POWER5/PPC970 processors. - The resulting binary will not work on POWER3 or RS64 processors - when compiled with binutils 2.15 or later. - -config POWER3 +config AUDIT_ARCH bool - depends on PPC64 - default y if !POWER4_ONLY - -config POWER4 - depends on PPC64 - def_bool y - -config 6xx - bool - -# this is temp to handle compat with arch=ppc -config 83xx - bool - -config PPC_FPU - bool - default y if PPC64 - -config BOOKE - bool - depends on E200 || E500 default y -config FSL_BOOKE +config GENERIC_BUG bool - depends on E200 || E500 default y + depends on BUG -config PTE_64BIT - bool - depends on 44x || E500 - default y if 44x - default y if E500 && PHYS_64BIT - -config PHYS_64BIT - bool 'Large physical address support' if E500 - depends on 44x || E500 - default y if 44x - ---help--- - This option enables kernel support for larger than 32-bit physical - addresses. This features is not be available on all e500 cores. - - If in doubt, say N here. - -config ALTIVEC - bool "AltiVec Support" - depends on CLASSIC32 || POWER4 - ---help--- - This option enables kernel support for the Altivec extensions to the - PowerPC processor. The kernel currently supports saving and restoring - altivec registers, and turning on the 'altivec enable' bit so user - processes can execute altivec instructions. - - This option is only usefully if you have a processor that supports - altivec (G4, otherwise known as 74xx series), but does not have - any affect on a non-altivec cpu (it does, however add code to the - kernel). - - If in doubt, say Y here. - -config SPE - bool "SPE Support" - depends on E200 || E500 - ---help--- - This option enables kernel support for the Signal Processing - Extensions (SPE) to the PowerPC processor. The kernel currently - supports saving and restoring SPE registers, and turning on the - 'spe enable' bit so user processes can execute SPE instructions. - - This option is only useful if you have a processor that supports - SPE (e500, otherwise known as 85xx series), but does not have any - effect on a non-spe cpu (it does, however add code to the kernel). - - If in doubt, say Y here. - -config PPC_STD_MMU +config SYS_SUPPORTS_APM_EMULATION + default y if PMAC_APM_EMU bool - depends on 6xx || POWER3 || POWER4 || PPC64 - default y - -config PPC_STD_MMU_32 - def_bool y - depends on PPC_STD_MMU && PPC32 - -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 - int "Maximum number of CPUs (2-128)" - range 2 128 - depends on SMP - default "32" if PPC64 - default "4" -config NOT_COHERENT_CACHE +config EPAPR_BOOT bool - depends on 4xx || 8xx || E200 - default y -endmenu - -source "init/Kconfig" - -menu "Platform support" - depends on PPC64 || CLASSIC32 - -choice - prompt "Machine type" - default PPC_MULTIPLATFORM - -config PPC_MULTIPLATFORM - bool "Generic desktop/server/laptop" - help - Select this option if configuring for an IBM pSeries or - RS/6000 machine, an Apple machine, or a PReP, CHRP, - Maple or Cell-based machine. - -config PPC_ISERIES - bool "IBM Legacy iSeries" - depends on PPC64 - -config EMBEDDED6xx - bool "Embedded 6xx/7xx/7xxx-based board" - depends on PPC32 && BROKEN - -config APUS - bool "Amiga-APUS" - depends on PPC32 && BROKEN help - Select APUS if configuring for a PowerUP Amiga. - More information is available at: - <http://linux-apus.sourceforge.net/>. -endchoice - -config PPC_PSERIES - depends on PPC_MULTIPLATFORM && PPC64 - bool " IBM pSeries & new (POWER5-based) iSeries" - select PPC_I8259 - select PPC_RTAS - select RTAS_ERROR_LOGGING - select PPC_UDBG_16550 - default y - -config PPC_CHRP - bool " Common Hardware Reference Platform (CHRP) based machines" - depends on PPC_MULTIPLATFORM && PPC32 - select PPC_I8259 - select PPC_INDIRECT_PCI - select PPC_RTAS - select PPC_MPC106 - select PPC_UDBG_16550 - default y - -config PPC_PMAC - bool " Apple PowerMac based machines" - depends on PPC_MULTIPLATFORM - select PPC_INDIRECT_PCI if PPC32 - select PPC_MPC106 if PPC32 - default y - -config PPC_PMAC64 - bool - depends on PPC_PMAC && POWER4 - select U3_DART - select MPIC_BROKEN_U3 - select GENERIC_TBSYNC - default y - -config PPC_PREP - bool " PowerPC Reference Platform (PReP) based machines" - depends on PPC_MULTIPLATFORM && PPC32 && BROKEN - select PPC_I8259 - select PPC_INDIRECT_PCI - select PPC_UDBG_16550 - default y - -config PPC_MAPLE - depends on PPC_MULTIPLATFORM && PPC64 - bool " Maple 970FX Evaluation Board" - select U3_DART - select MPIC_BROKEN_U3 - select GENERIC_TBSYNC - select PPC_UDBG_16550 + Used to allow a board to specify it wants an ePAPR compliant wrapper. default n - help - This option enables support for the Maple 970FX Evaluation Board. - For more informations, refer to <http://www.970eval.com> -config PPC_CELL - bool " Cell Broadband Processor Architecture" - depends on PPC_MULTIPLATFORM && PPC64 - select PPC_RTAS - select MMIO_NVRAM - select PPC_UDBG_16550 - -config XICS - depends on PPC_PSERIES +config DEFAULT_UIMAGE bool - default y - -config U3_DART - bool - depends on PPC_MULTIPLATFORM && PPC64 + help + Used to allow a board to specify it wants a uImage built by default default n -config MPIC - depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP +config ARCH_HIBERNATION_POSSIBLE bool default y -config PPC_RTAS - bool - default n +config ARCH_SUSPEND_POSSIBLE + def_bool y + depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ + (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ + || 44x || 40x -config RTAS_ERROR_LOGGING +config PPC_DCR_NATIVE bool - depends on PPC_RTAS default n -config RTAS_PROC - bool "Proc interface to RTAS" - depends on PPC_RTAS - default y - -config RTAS_FLASH - tristate "Firmware flash interface" - depends on PPC64 && RTAS_PROC - -config MMIO_NVRAM +config PPC_DCR_MMIO bool default n -config MPIC_BROKEN_U3 +config PPC_DCR bool - depends on PPC_MAPLE + depends on PPC_DCR_NATIVE || PPC_DCR_MMIO default y -config CELL_IIC - depends on PPC_CELL - bool - default y - -config IBMVIO - depends on PPC_PSERIES || PPC_ISERIES - bool - default y - -config IBMEBUS - depends on PPC_PSERIES - bool "Support for GX bus based adapters" - help - Bus device driver for GX bus based adapters. - -config PPC_MPC106 +config PPC_OF_PLATFORM_PCI bool + depends on PCI + depends on PPC64 # not supported on 32 bits yet default n -source "drivers/cpufreq/Kconfig" - -config CPU_FREQ_PMAC - bool "Support for Apple PowerBooks" - depends on CPU_FREQ && ADB_PMU && PPC32 - select CPU_FREQ_TABLE - help - This adds support for frequency switching on Apple PowerBooks, - this currently includes some models of iBook & Titanium - PowerBook. +config ARCH_SUPPORTS_DEBUG_PAGEALLOC + def_bool y -config CPU_FREQ_PMAC64 - bool "Support for some Apple G5s" - depends on CPU_FREQ && PMAC_SMU && PPC64 - select CPU_FREQ_TABLE - help - This adds support for frequency switching on Apple iMac G5, - and some of the more recent desktop G5 machines as well. +config ARCH_SUPPORTS_UPROBES + def_bool y -config PPC601_SYNC_FIX - bool "Workarounds for PPC601 bugs" - depends on 6xx && (PPC_PREP || PPC_PMAC) - help - Some versions of the PPC601 (the first PowerPC chip) have bugs which - mean that extra synchronization instructions are required near - certain instructions, typically those that make major changes to the - CPU state. These extra instructions reduce performance slightly. - If you say N here, these extra instructions will not be included, - resulting in a kernel which will run faster but may not run at all - on some systems with the PPC601 chip. +config PPC_ADV_DEBUG_REGS + bool + depends on 40x || BOOKE + default y - If in doubt, say Y here. +config PPC_ADV_DEBUG_IACS + int + depends on PPC_ADV_DEBUG_REGS + default 4 if 44x + default 2 -config TAU - bool "Thermal Management Support" - depends on 6xx - help - G3 and G4 processors have an on-chip temperature sensor called the - 'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die - temperature within 2-4 degrees Celsius. This option shows the current - on-die temperature in /proc/cpuinfo if the cpu supports it. +config PPC_ADV_DEBUG_DACS + int + depends on PPC_ADV_DEBUG_REGS + default 2 - Unfortunately, on some chip revisions, this sensor is very inaccurate - and in some cases, does not work at all, so don't assume the cpu - temp is actually what /proc/cpuinfo says it is. +config PPC_ADV_DEBUG_DVCS + int + depends on PPC_ADV_DEBUG_REGS + default 2 if 44x + default 0 -config TAU_INT - bool "Interrupt driven TAU driver (DANGEROUS)" - depends on TAU - ---help--- - The TAU supports an interrupt driven mode which causes an interrupt - whenever the temperature goes out of range. This is the fastest way - to get notified the temp has exceeded a range. With this option off, - a timer is used to re-check the temperature periodically. +config PPC_ADV_DEBUG_DAC_RANGE + bool + depends on PPC_ADV_DEBUG_REGS && 44x + default y - However, on some cpus it appears that the TAU interrupt hardware - is buggy and can cause a situation which would lead unexplained hard - lockups. +config PPC_EMULATE_SSTEP + bool + default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT - Unless you are extending the TAU driver, or enjoy kernel/hardware - debugging, leave this option off. +source "init/Kconfig" -config TAU_AVERAGE - bool "Average high and low temp" - depends on TAU - ---help--- - The TAU hardware can compare the temperature to an upper and lower - bound. The default behavior is to show both the upper and lower - bound in /proc/cpuinfo. If the range is large, the temperature is - either changing a lot, or the TAU hardware is broken (likely on some - G4's). If the range is small (around 4 degrees), the temperature is - relatively stable. If you say Y here, a single temperature value, - halfway between the upper and lower bounds, will be reported in - /proc/cpuinfo. - - If in doubt, say N here. -endmenu +source "kernel/Kconfig.freezer" -source arch/powerpc/platforms/embedded6xx/Kconfig -source arch/powerpc/platforms/4xx/Kconfig -source arch/powerpc/platforms/83xx/Kconfig -source arch/powerpc/platforms/85xx/Kconfig -source arch/powerpc/platforms/8xx/Kconfig -source arch/powerpc/platforms/cell/Kconfig +source "arch/powerpc/sysdev/Kconfig" +source "arch/powerpc/platforms/Kconfig" menu "Kernel options" @@ -515,18 +303,14 @@ 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 + default y config MATH_EMULATION bool "Math emulation" - depends on 4xx || 8xx || E200 || E500 + depends on 4xx || 8xx || PPC_MPC832x || BOOKE ---help--- Some PowerPC chips designed for embedded applications do not have a floating-point unit and therefore do not implement the @@ -535,83 +319,149 @@ config MATH_EMULATION 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 + This is also useful to emulate missing (optional) instructions + such as fsqrt on cores that do have an FPU but do not implement + them (such as Freescale BookE). + +choice + prompt "Math emulation options" + default MATH_EMULATION_FULL + depends on MATH_EMULATION + +config MATH_EMULATION_FULL + bool "Emulate all the floating point instructions" + ---help--- + Select this option will enable the kernel to support to emulate + all the floating point instructions. If your SoC doesn't have + a FPU, you should select this. + +config MATH_EMULATION_HW_UNIMPLEMENTED + bool "Just emulate the FPU unimplemented instructions" + ---help--- + Select this if you know there does have a hardware FPU on your + SoC, but some floating point instructions are not implemented by that. + +endchoice + +config PPC_TRANSACTIONAL_MEM + bool "Transactional Memory support for POWERPC" + depends on PPC_BOOK3S_64 + depends on SMP + select ALTIVEC + select VSX + default n + ---help--- + Support user-mode Transactional Memory on POWERPC. + +config IOMMU_HELPER + def_bool PPC64 + +config SWIOTLB + bool "SWIOTLB support" 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. + select IOMMU_HELPER + ---help--- + Support for IO bounce buffering for systems without an IOMMU. + This allows us to DMA to the full physical address space on + platforms where the size of a physical address is larger + than the bus address. Not all platforms support this. config HOTPLUG_CPU bool "Support for enabling/disabling CPUs" - depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) + depends on SMP && (PPC_PSERIES || \ + PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC)) ---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. +config ARCH_CPU_PROBE_RELEASE + def_bool y + depends on HOTPLUG_CPU + +config ARCH_ENABLE_MEMORY_HOTPLUG + def_bool y + +config ARCH_HAS_WALK_MEMORY + def_bool y + +config ARCH_ENABLE_MEMORY_HOTREMOVE + def_bool y + +config PPC64_SUPPORTS_MEMORY_FAILURE + bool "Add support for memory hwpoison" + depends on PPC_BOOK3S_64 + default "y" if PPC_POWERNV + select ARCH_SUPPORTS_MEMORY_FAILURE + config KEXEC - bool "kexec system call (EXPERIMENTAL)" - depends on PPC_MULTIPLATFORM && EXPERIMENTAL + bool "kexec system call" + depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) 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 - but it is indepedent of the system firmware. And like a reboot + but it is independent of the system firmware. And like a reboot you can start any kernel with it, not just Linux. - The name comes from the similiarity to the exec system call. + The name comes from the similarity to the exec system call. 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. + initially work for you. As of this writing the exact hardware + interface is strongly in flux, so no good recommendation can be + made. config CRASH_DUMP - bool "kernel crash dumps (EXPERIMENTAL)" - depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL + bool "Build a kdump crash kernel" + depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) + select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE 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. + The same kernel binary can be used as production kernel and dump + capture kernel. - Don't change this unless you know what you are doing. - -config EMBEDDEDBOOT - bool - depends on 8xx || 8260 - default y - -config PC_KEYBOARD - bool "PC PS/2 style Keyboard" - depends on 4xx || CPM2 +config FA_DUMP + bool "Firmware-assisted dump" + depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC + help + A robust mechanism to get reliable kernel crash dump with + assistance from firmware. This approach does not use kexec, + instead firmware assists in booting the kdump kernel + while preserving memory contents. Firmware-assisted dump + is meant to be a kdump replacement offering robustness and + speed not possible without system firmware assistance. -config PPCBUG_NVRAM - bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC - default y if PPC_PREP + If unsure, say "N" config IRQ_ALL_CPUS bool "Distribute interrupts on all CPUs by default" - depends on SMP && !MV64360 + depends on SMP 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. -source "arch/powerpc/platforms/pseries/Kconfig" - config NUMA bool "NUMA support" depends on PPC64 default y if SMP && PPC_PSERIES +config NODES_SHIFT + int + default "8" if PPC64 + default "4" + depends on NEED_MULTIPLE_NODES + +config USE_PERCPU_NUMA_NODE_ID + def_bool y + depends on NUMA + +config HAVE_MEMORYLESS_NODES + def_bool y + depends on NUMA + config ARCH_SELECT_MEMORY_MODEL def_bool y depends on PPC64 @@ -623,53 +473,153 @@ config ARCH_FLATMEM_ENABLE config ARCH_SPARSEMEM_ENABLE def_bool y depends on PPC64 + select SPARSEMEM_VMEMMAP_ENABLE config ARCH_SPARSEMEM_DEFAULT def_bool y - depends on SMP && PPC_PSERIES + depends on (SMP && PPC_PSERIES) || PPC_PS3 -source "mm/Kconfig" +config SYS_SUPPORTS_HUGETLBFS + bool -config HAVE_ARCH_EARLY_PFN_TO_NID - def_bool y - depends on NEED_MULTIPLE_NODES +source "mm/Kconfig" config ARCH_MEMORY_PROBE def_bool y depends on MEMORY_HOTPLUG -config PPC_64K_PAGES - bool "64k page size" +# 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 + +config PPC_HAS_HASH_64K + bool depends on PPC64 + default n + +config STDBINUTILS + bool "Using standard binutils settings" + depends on 44x + default y 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. + 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" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64 + depends on !PPC_FSL_BOOK3E + select PPC_HAS_HASH_64K if PPC_STD_MMU_64 + +config PPC_256K_PAGES + bool "256k page size" if 44x + depends on !STDBINUTILS + help + 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" + range 9 64 if PPC64 && PPC_64K_PAGES + default "9" if PPC64 && PPC_64K_PAGES + range 13 64 if PPC64 && !PPC_64K_PAGES + default "13" if PPC64 && !PPC_64K_PAGES + range 9 64 if PPC32 && PPC_16K_PAGES + default "9" if PPC32 && PPC_16K_PAGES + range 7 64 if PPC32 && PPC_64K_PAGES + default "7" if PPC32 && PPC_64K_PAGES + range 5 64 if PPC32 && PPC_256K_PAGES + default "5" if PPC32 && PPC_256K_PAGES + range 11 64 + 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_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) + on the 4k subpages of each 64k page. config SCHED_SMT bool "SMT (Hyperthreading) scheduler support" depends on PPC64 && SMP - default off 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 - bool "Support for device tree in /proc" - depends on PROC_FS - help - This option adds a device-tree directory under /proc which contains - an image of the device tree that the kernel copies from Open - Firmware or other boot firmware. If unsure, say Y here. - -source "arch/powerpc/platforms/prep/Kconfig" +config PPC_DENORMALISATION + bool "PowerPC denormalisation exception handling" + depends on PPC_BOOK3S_64 + default "y" if PPC_POWERNV + ---help--- + Add support for handling denormalisation of single precision + values. Useful for bare metal only. If unsure say Y here. config CMDLINE_BOOL bool "Default bootloader kernel arguments" - depends on !PPC_ISERIES config CMDLINE string "Initial kernel command string" @@ -681,9 +631,33 @@ config CMDLINE 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 +config CMDLINE_FORCE + bool "Always use the default kernel command string" + depends on CMDLINE_BOOL + help + Always use the default kernel command string, even if the boot + loader passes other arguments to the kernel. + This is useful if you cannot or don't want to change the + command-line options your boot loader passes to the kernel. + +config EXTRA_TARGETS + string "Additional default image types" + help + List additional targets to be built by the bootwrapper here (separated + by spaces). This is useful for targets that depend of device tree + files in the .dts directory. + + Targets in this list will be build as part of the default build + target, or when the user does a 'make zImage' or a + 'make zImage.initrd'. + + If unsure, leave blank + +config ARCH_WANTS_FREEZER_CONTROL + def_bool y + depends on ADB_PMU + source kernel/power/Kconfig -endif config SECCOMP bool "Enable seccomp to safely compute untrusted bytecode" @@ -706,35 +680,40 @@ endmenu config ISA_DMA_API bool - default y + default PCI menu "Bus options" config ISA bool "Support for ISA-bus hardware" - depends on PPC_PREP || PPC_CHRP + depends on PPC_CHRP select PPC_I8259 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. + have an IBM RS/6000 or pSeries machine, say Y. If you have an + embedded board, consult your board documentation. -config GENERIC_ISA_DMA +config ZONE_DMA bool - depends on PPC64 || POWER4 || 6xx && !CPM2 default y -config PPC_I8259 +config NEED_DMA_MAP_STATE + def_bool (PPC64 || NOT_COHERENT_CACHE) + +config NEED_SG_DMA_LENGTH + def_bool y + +config GENERIC_ISA_DMA bool - default y if 85xx - default n + depends on ISA_DMA_API + default y config PPC_INDIRECT_PCI bool depends on PCI - default y if 40x || 44x || 85xx + default y if 40x || 44x default n config EISA @@ -746,15 +725,61 @@ config SBUS config FSL_SOC bool +config FSL_PCI + bool + select PPC_INDIRECT_PCI + select PCI_QUIRKS + +config FSL_PMC + bool + default y + depends on SUSPEND && (PPC_85xx || PPC_86xx) + help + Freescale MPC85xx/MPC86xx power management controller support + (suspend/resume). For MPC83xx see platforms/83xx/suspend.c + +config PPC4xx_CPM + bool + default y + depends on SUSPEND && (44x || 40x) + help + PPC4xx Clock Power Management (CPM) support (suspend/resume). + It also enables support for two different idle states (idle-wait + and idle-doze). + +config 4xx_SOC + bool + +config FSL_LBC + bool "Freescale Local Bus support" + depends on FSL_SOC + help + Enables reporting of errors from the Freescale local bus + controller. Also contains some common code used by + drivers for specific local bus peripherals. + +config FSL_GTM + bool + depends on PPC_83xx || QUICC_ENGINE || CPM2 + help + Freescale General-purpose Timers support + # Yes MCA RS/6000s exist but Linux-PPC does not currently support any 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 || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES) - default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !85xx - default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS + bool "PCI support" if PPC_PCI_CHOICE + default y if !40x && !CPM2 && !8xx && !PPC_83xx \ + && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON default PCI_QSPAN if !4xx && !CPM2 && 8xx + select GENERIC_PCI_IOMAP 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 @@ -762,8 +787,10 @@ config PCI infrastructure code to support PCI bus devices. config PCI_DOMAINS - bool - default PCI + def_bool PCI + +config PCI_SYSCALL + def_bool PCI config PCI_QSPAN bool "QSpan PCI" @@ -779,37 +806,41 @@ config PCI_8260 select PPC_INDIRECT_PCI default y -config 8260_PCI9 - bool " Enable workaround for MPC826x erratum PCI 9" - depends on PCI_8260 && !ADS8272 - default y - -choice - prompt " IDMA channel for PCI 9 workaround" - depends on 8260_PCI9 +source "drivers/pci/pcie/Kconfig" -config 8260_PCI9_IDMA1 - bool "IDMA1" +source "drivers/pci/Kconfig" -config 8260_PCI9_IDMA2 - bool "IDMA2" +source "drivers/pcmcia/Kconfig" -config 8260_PCI9_IDMA3 - bool "IDMA3" +source "drivers/pci/hotplug/Kconfig" -config 8260_PCI9_IDMA4 - bool "IDMA4" +config HAS_RAPIDIO + bool + default n -endchoice +config RAPIDIO + tristate "RapidIO support" + depends on HAS_RAPIDIO || PCI + help + If you say Y here, the kernel will include drivers and + infrastructure code to support RapidIO interconnect devices. -source "drivers/pci/Kconfig" +config FSL_RIO + bool "Freescale Embedded SRIO Controller support" + depends on RAPIDIO = y && HAS_RAPIDIO + default "n" + ---help--- + Include support for RapidIO controller on Freescale embedded + processors (MPC8548, MPC8641, etc). -source "drivers/pcmcia/Kconfig" - -source "drivers/pci/hotplug/Kconfig" +source "drivers/rapidio/Kconfig" endmenu +config NONSTATIC_KERNEL + bool + default n + menu "Advanced setup" depends on PPC32 @@ -826,20 +857,6 @@ 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 @@ -856,21 +873,116 @@ 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 DYNAMIC_MEMSTART + bool "Enable page aligned dynamic load address for kernel" + depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) + select NONSTATIC_KERNEL + help + This option enables the kernel to be loaded at any page aligned + physical address. The kernel creates a mapping from KERNELBASE to + the address where the kernel is loaded. The page size here implies + the TLB page size of the mapping for kernel on the particular platform. + Please refer to the init code for finding the TLB page size. + + DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE + kernel image, where the only restriction is the page aligned kernel + load address. When this option is enabled, the compile time physical + address CONFIG_PHYSICAL_START is ignored. + + This option is overridden by CONFIG_RELOCATABLE + +config RELOCATABLE + bool "Build a relocatable kernel" + depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE) + select NONSTATIC_KERNEL + help + This builds a kernel image that is capable of running at the + location the kernel is loaded at, without any alignment restrictions. + This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. + + 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 address of the kernel (eg. u-boot/mkimage). + +config RELOCATABLE_PPC32 + def_bool y + depends on PPC32 && RELOCATABLE + +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 && !NONSTATIC_KERNEL 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 && !NONSTATIC_KERNEL + default "0x00000000" + +config PHYSICAL_ALIGN + hex + 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 + address which meets above alignment restriction. + config TASK_SIZE_BOOL bool "Set custom user task size" depends on ADVANCED_OPTIONS @@ -883,25 +995,14 @@ config TASK_SIZE_BOOL 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 - of the 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 "0xff100000" if NOT_COHERENT_CACHE + default "0x80000000" if PPC_8xx + default "0xc0000000" 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 the + 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. @@ -909,63 +1010,52 @@ 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 RELOCATABLE + bool "Build a relocatable kernel" + depends on !COMPILE_TEST + select NONSTATIC_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. + +# This value must have zeroes in the bottom 60 bits otherwise lots will break +config PAGE_OFFSET + hex + default "0xc000000000000000" config KERNEL_START hex default "0xc000000000000000" +config PHYSICAL_START + hex + default "0x00000000" endif +config ARCH_RANDOM + def_bool n + source "net/Kconfig" source "drivers/Kconfig" source "fs/Kconfig" -# XXX source "arch/ppc/8xx_io/Kconfig" - -# XXX source "arch/ppc/8260_io/Kconfig" - -source "arch/powerpc/platforms/iseries/Kconfig" +source "arch/powerpc/sysdev/qe_lib/Kconfig" source "lib/Kconfig" -menu "Instrumentation Support" - depends on EXPERIMENTAL - -source "arch/powerpc/oprofile/Kconfig" - -config KPROBES - bool "Kprobes (EXPERIMENTAL)" - depends on PPC64 - 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 - source "arch/powerpc/Kconfig.debug" source "security/Kconfig" @@ -976,3 +1066,8 @@ config KEYS_COMPAT default y source "crypto/Kconfig" + +config PPC_LIB_RHEAP + bool + +source "arch/powerpc/kvm/Kconfig" |