| # SPDX-License-Identifier: GPL-2.0 |
| config PPC64 |
| bool "64-bit kernel" |
| select ZLIB_DEFLATE |
| help |
| This option selects whether a 32-bit or a 64-bit kernel |
| will be built. |
| |
| menu "Processor support" |
| choice |
| prompt "Processor Type" |
| depends on PPC32 |
| help |
| There are five families of 32 bit PowerPC chips supported. |
| The most common ones are the desktop and server CPUs (601, 603, |
| 604, 740, 750, 74xx) CPUs from Freescale and IBM, with their |
| embedded 512x/52xx/82xx/83xx/86xx counterparts. |
| The other embedded parts, namely 4xx, 8xx, e200 (55xx) and e500 |
| (85xx) each form a family of their own that is not compatible |
| with the others. |
| |
| If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx. |
| |
| config PPC_BOOK3S_32 |
| bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx" |
| select PPC_FPU |
| select PPC_HAVE_PMU_SUPPORT |
| select PPC_HAVE_KUEP |
| select PPC_HAVE_KUAP |
| |
| config PPC_85xx |
| bool "Freescale 85xx" |
| select E500 |
| |
| config PPC_8xx |
| bool "Freescale 8xx" |
| select FSL_SOC |
| select SYS_SUPPORTS_HUGETLBFS |
| select PPC_HAVE_KUEP |
| select PPC_HAVE_KUAP |
| select PPC_MM_SLICES if HUGETLB_PAGE |
| |
| config 40x |
| bool "AMCC 40x" |
| select PPC_DCR_NATIVE |
| select PPC_UDBG_16550 |
| select 4xx_SOC |
| select HAVE_PCI |
| |
| config 44x |
| bool "AMCC 44x, 46x or 47x" |
| select PPC_DCR_NATIVE |
| select PPC_UDBG_16550 |
| select 4xx_SOC |
| select HAVE_PCI |
| select PHYS_64BIT |
| |
| config E200 |
| bool "Freescale e200" |
| |
| endchoice |
| |
| choice |
| prompt "Processor Type" |
| depends on PPC64 |
| help |
| There are two families of 64 bit PowerPC chips supported. |
| The most common ones are the desktop and server CPUs |
| (POWER5, 970, POWER5+, POWER6, POWER7, POWER8, POWER9 ...) |
| |
| The other are the "embedded" processors compliant with the |
| "Book 3E" variant of the architecture |
| |
| config PPC_BOOK3S_64 |
| bool "Server processors" |
| select PPC_FPU |
| select PPC_HAVE_PMU_SUPPORT |
| select SYS_SUPPORTS_HUGETLBFS |
| select HAVE_ARCH_TRANSPARENT_HUGEPAGE |
| select ARCH_ENABLE_THP_MIGRATION if TRANSPARENT_HUGEPAGE |
| select ARCH_SUPPORTS_NUMA_BALANCING |
| select IRQ_WORK |
| select PPC_MM_SLICES |
| |
| config PPC_BOOK3E_64 |
| bool "Embedded processors" |
| select PPC_FPU # Make it a choice ? |
| select PPC_SMP_MUXED_IPI |
| select PPC_DOORBELL |
| |
| endchoice |
| |
| choice |
| prompt "CPU selection" |
| default GENERIC_CPU |
| help |
| This will create a kernel which is optimised for a particular CPU. |
| The resulting kernel may not run on other CPUs, so use this with care. |
| |
| If unsure, select Generic. |
| |
| config GENERIC_CPU |
| bool "Generic (POWER4 and above)" |
| depends on PPC64 && !CPU_LITTLE_ENDIAN |
| |
| config GENERIC_CPU |
| bool "Generic (POWER8 and above)" |
| depends on PPC64 && CPU_LITTLE_ENDIAN |
| select ARCH_HAS_FAST_MULTIPLIER |
| |
| config GENERIC_CPU |
| bool "Generic 32 bits powerpc" |
| depends on PPC32 && !PPC_8xx |
| |
| config CELL_CPU |
| bool "Cell Broadband Engine" |
| depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN |
| |
| config POWER5_CPU |
| bool "POWER5" |
| depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN |
| |
| config POWER6_CPU |
| bool "POWER6" |
| depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN |
| |
| config POWER7_CPU |
| bool "POWER7" |
| depends on PPC_BOOK3S_64 |
| select ARCH_HAS_FAST_MULTIPLIER |
| |
| config POWER8_CPU |
| bool "POWER8" |
| depends on PPC_BOOK3S_64 |
| select ARCH_HAS_FAST_MULTIPLIER |
| |
| config POWER9_CPU |
| bool "POWER9" |
| depends on PPC_BOOK3S_64 |
| select ARCH_HAS_FAST_MULTIPLIER |
| |
| config E5500_CPU |
| bool "Freescale e5500" |
| depends on E500 |
| |
| config E6500_CPU |
| bool "Freescale e6500" |
| depends on E500 |
| |
| config 860_CPU |
| bool "8xx family" |
| depends on PPC_8xx |
| |
| config E300C2_CPU |
| bool "e300c2 (832x)" |
| depends on PPC_BOOK3S_32 |
| |
| config E300C3_CPU |
| bool "e300c3 (831x)" |
| depends on PPC_BOOK3S_32 |
| |
| config G4_CPU |
| bool "G4 (74xx)" |
| depends on PPC_BOOK3S_32 |
| select ALTIVEC |
| |
| endchoice |
| |
| config TARGET_CPU_BOOL |
| bool |
| default !GENERIC_CPU |
| |
| config TARGET_CPU |
| string |
| depends on TARGET_CPU_BOOL |
| default "cell" if CELL_CPU |
| default "power5" if POWER5_CPU |
| default "power6" if POWER6_CPU |
| default "power7" if POWER7_CPU |
| default "power8" if POWER8_CPU |
| default "power9" if POWER9_CPU |
| default "860" if 860_CPU |
| default "e300c2" if E300C2_CPU |
| default "e300c3" if E300C3_CPU |
| default "G4" if G4_CPU |
| |
| config PPC_BOOK3S |
| def_bool y |
| depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 |
| |
| config PPC_BOOK3E |
| def_bool y |
| depends on PPC_BOOK3E_64 |
| |
| config E500 |
| select FSL_EMB_PERFMON |
| select PPC_FSL_BOOK3E |
| bool |
| |
| config PPC_E500MC |
| bool "e500mc Support" |
| select PPC_FPU |
| select COMMON_CLK |
| depends on E500 |
| help |
| This must be enabled for running on e500mc (and derivatives |
| such as e5500/e6500), and must be disabled for running on |
| e500v1 or e500v2. |
| |
| config PPC_FPU |
| bool |
| default y if PPC64 |
| |
| config FSL_EMB_PERFMON |
| bool "Freescale Embedded Perfmon" |
| depends on E500 || PPC_83xx |
| help |
| This is the Performance Monitor support found on the e500 core |
| and some e300 cores (c3 and c4). Select this only if your |
| core supports the Embedded Performance Monitor APU |
| |
| config FSL_EMB_PERF_EVENT |
| bool |
| depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS |
| default y |
| |
| config FSL_EMB_PERF_EVENT_E500 |
| bool |
| depends on FSL_EMB_PERF_EVENT && E500 |
| default y |
| |
| config 4xx |
| bool |
| depends on 40x || 44x |
| default y |
| |
| config BOOKE |
| bool |
| depends on E200 || E500 || 44x || PPC_BOOK3E |
| default y |
| |
| config FSL_BOOKE |
| bool |
| depends on (E200 || E500) && PPC32 |
| default y |
| |
| # this is for common code between PPC32 & PPC64 FSL BOOKE |
| config PPC_FSL_BOOK3E |
| bool |
| select FSL_EMB_PERFMON |
| select PPC_SMP_MUXED_IPI |
| select SYS_SUPPORTS_HUGETLBFS if PHYS_64BIT || PPC64 |
| select PPC_DOORBELL |
| default y if FSL_BOOKE |
| |
| config PTE_64BIT |
| bool |
| depends on 44x || E500 || PPC_86xx |
| default y if PHYS_64BIT |
| |
| config PHYS_64BIT |
| bool 'Large physical address support' if E500 || PPC_86xx |
| depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx |
| select PHYS_ADDR_T_64BIT |
| ---help--- |
| This option enables kernel support for larger than 32-bit physical |
| addresses. This feature may not be available on all cores. |
| |
| If you have more than 3.5GB of RAM or so, you also need to enable |
| SWIOTLB under Kernel Options for this to work. The actual number |
| is platform-dependent. |
| |
| If in doubt, say N here. |
| |
| config ALTIVEC |
| bool "AltiVec Support" |
| depends on PPC_BOOK3S_32 || PPC_BOOK3S_64 || (PPC_E500MC && PPC64) |
| ---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 VSX |
| bool "VSX Support" |
| depends on PPC_BOOK3S_64 && ALTIVEC && PPC_FPU |
| ---help--- |
| |
| This option enables kernel support for the Vector Scaler extensions |
| to the PowerPC processor. The kernel currently supports saving and |
| restoring VSX registers, and turning on the 'VSX enable' bit so user |
| processes can execute VSX instructions. |
| |
| This option is only useful if you have a processor that supports |
| VSX (P7 and above), but does not have any affect on a non-VSX |
| CPUs (it does, however add code to the kernel). |
| |
| If in doubt, say Y here. |
| |
| config SPE_POSSIBLE |
| def_bool y |
| depends on E200 || (E500 && !PPC_E500MC) |
| |
| config SPE |
| bool "SPE Support" |
| depends on SPE_POSSIBLE |
| default y |
| ---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 ARCH_ENABLE_SPLIT_PMD_PTLOCK |
| def_bool y |
| depends on PPC_BOOK3S_64 |
| |
| config PPC_RADIX_MMU |
| bool "Radix MMU Support" |
| depends on PPC_BOOK3S_64 |
| select ARCH_HAS_GIGANTIC_PAGE |
| select PPC_HAVE_KUEP |
| select PPC_HAVE_KUAP |
| default y |
| help |
| Enable support for the Power ISA 3.0 Radix style MMU. Currently this |
| is only implemented by IBM Power9 CPUs, if you don't have one of them |
| you can probably disable this. |
| |
| config PPC_RADIX_MMU_DEFAULT |
| bool "Default to using the Radix MMU when possible" |
| depends on PPC_RADIX_MMU |
| default y |
| help |
| When the hardware supports the Radix MMU, default to using it unless |
| "disable_radix[=yes]" is specified on the kernel command line. |
| |
| If this option is disabled, the Hash MMU will be used by default, |
| unless "disable_radix=no" is specified on the kernel command line. |
| |
| If you're unsure, say Y. |
| |
| config PPC_HAVE_KUEP |
| bool |
| |
| config PPC_KUEP |
| bool "Kernel Userspace Execution Prevention" |
| depends on PPC_HAVE_KUEP |
| default y |
| help |
| Enable support for Kernel Userspace Execution Prevention (KUEP) |
| |
| If you're unsure, say Y. |
| |
| config PPC_HAVE_KUAP |
| bool |
| |
| config PPC_KUAP |
| bool "Kernel Userspace Access Protection" |
| depends on PPC_HAVE_KUAP |
| default y |
| help |
| Enable support for Kernel Userspace Access Protection (KUAP) |
| |
| If you're unsure, say Y. |
| |
| config PPC_KUAP_DEBUG |
| bool "Extra debugging for Kernel Userspace Access Protection" |
| depends on PPC_HAVE_KUAP && (PPC_RADIX_MMU || PPC_32) |
| help |
| Add extra debugging for Kernel Userspace Access Protection (KUAP) |
| If you're unsure, say N. |
| |
| config ARCH_ENABLE_HUGEPAGE_MIGRATION |
| def_bool y |
| depends on PPC_BOOK3S_64 && HUGETLB_PAGE && MIGRATION |
| |
| |
| config PPC_MMU_NOHASH |
| def_bool y |
| depends on !PPC_BOOK3S |
| |
| config PPC_MMU_NOHASH_32 |
| def_bool y |
| depends on PPC_MMU_NOHASH && PPC32 |
| |
| config PPC_BOOK3E_MMU |
| def_bool y |
| depends on FSL_BOOKE || PPC_BOOK3E |
| |
| config PPC_MM_SLICES |
| bool |
| |
| config PPC_HAVE_PMU_SUPPORT |
| bool |
| |
| config PPC_PERF_CTRS |
| def_bool y |
| depends on PERF_EVENTS && PPC_HAVE_PMU_SUPPORT |
| help |
| This enables the powerpc-specific perf_event back-end. |
| |
| config FORCE_SMP |
| # Allow platforms to force SMP=y by selecting this |
| bool |
| select SMP |
| |
| config SMP |
| depends on PPC_BOOK3S || PPC_BOOK3E || FSL_BOOKE || PPC_47x |
| select GENERIC_IRQ_MIGRATION |
| bool "Symmetric multi-processing support" if !FORCE_SMP |
| ---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 (2-8192)" |
| range 2 8192 |
| depends on SMP |
| default "32" if PPC64 |
| default "4" |
| |
| config NOT_COHERENT_CACHE |
| bool |
| depends on 4xx || PPC_8xx || E200 || PPC_MPC512x || \ |
| GAMECUBE_COMMON || AMIGAONE |
| select ARCH_HAS_DMA_COHERENT_TO_PFN |
| select ARCH_HAS_SYNC_DMA_FOR_DEVICE |
| select ARCH_HAS_SYNC_DMA_FOR_CPU |
| default n if PPC_47x |
| default y |
| |
| config CHECK_CACHE_COHERENCY |
| bool |
| |
| config PPC_DOORBELL |
| bool |
| |
| endmenu |
| |
| config VDSO32 |
| def_bool y |
| depends on PPC32 || CPU_BIG_ENDIAN |
| help |
| This symbol controls whether we build the 32-bit VDSO. We obviously |
| want to do that if we're building a 32-bit kernel. If we're building |
| a 64-bit kernel then we only want a 32-bit VDSO if we're building for |
| big endian. That is because the only little endian configuration we |
| support is ppc64le which is 64-bit only. |
| |
| choice |
| prompt "Endianness selection" |
| default CPU_BIG_ENDIAN |
| help |
| This option selects whether a big endian or little endian kernel will |
| be built. |
| |
| config CPU_BIG_ENDIAN |
| bool "Build big endian kernel" |
| help |
| Build a big endian kernel. |
| |
| If unsure, select this option. |
| |
| config CPU_LITTLE_ENDIAN |
| bool "Build little endian kernel" |
| depends on PPC_BOOK3S_64 |
| select PPC64_BOOT_WRAPPER |
| help |
| Build a little endian kernel. |
| |
| Note that if cross compiling a little endian kernel, |
| CROSS_COMPILE must point to a toolchain capable of targeting |
| little endian powerpc. |
| |
| endchoice |
| |
| config PPC64_BOOT_WRAPPER |
| def_bool n |
| depends on CPU_LITTLE_ENDIAN |
