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| author | Nicholas Piggin <npiggin@gmail.com> | 2022-09-09 15:23:12 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-11-24 23:31:47 +1100 |
| commit | b86cf14f240e002e001fd4f2bf49114c7836fd5c (patch) | |
| tree | 40f979d9e82642c1f7d0a16578f0de5ed2113975 /arch/powerpc/platforms | |
| parent | ff8fae94e26f5cd2779ceda0ee6d714a10501abd (diff) | |
| download | linux-b86cf14f240e002e001fd4f2bf49114c7836fd5c.tar.bz2 | |
powerpc: add compile-time support for lbarx, lharx
ISA v2.06 (POWER7 and up) as well as e6500 support lbarx and lharx.
Add a compile option that allows code to use it, and add support in
cmpxchg and xchg 8 and 16 bit values without shifting and masking.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220909052312.63916-1-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/Kconfig.cputype | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 0c4eed9aea80..7bac213b4125 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -135,6 +135,7 @@ config GENERIC_CPU depends on PPC_BOOK3S_64 && CPU_LITTLE_ENDIAN select ARCH_HAS_FAST_MULTIPLIER select PPC_64S_HASH_MMU + select PPC_HAS_LBARX_LHARX config POWERPC_CPU bool "Generic 32 bits powerpc" @@ -160,17 +161,20 @@ config POWER7_CPU depends on PPC_BOOK3S_64 select ARCH_HAS_FAST_MULTIPLIER select PPC_64S_HASH_MMU + select PPC_HAS_LBARX_LHARX config POWER8_CPU bool "POWER8" depends on PPC_BOOK3S_64 select ARCH_HAS_FAST_MULTIPLIER select PPC_64S_HASH_MMU + select PPC_HAS_LBARX_LHARX config POWER9_CPU bool "POWER9" depends on PPC_BOOK3S_64 select ARCH_HAS_FAST_MULTIPLIER + select PPC_HAS_LBARX_LHARX config POWER10_CPU bool "POWER10" @@ -184,6 +188,7 @@ config E5500_CPU config E6500_CPU bool "Freescale e6500" depends on PPC64 && PPC_E500 + select PPC_HAS_LBARX_LHARX config 405_CPU bool "40x family" |