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| author |   Mark Brown <broonie@kernel.org> | 2021-05-12 16:11:29 +0100 |
|---|---|---|
| committer |   Will Deacon <will@kernel.org> | 2021-05-26 20:04:28 +0100 |
| commit | 483dbf6a35907610597fdc304bd32ecba40cdff0 (patch) | |
| tree | 60acbe166b248ac32df051ac1994c34e1a06fa00 | |
| parent | Linux 5.13-rc3 (diff) | |
| download | wireguard-linux-483dbf6a35907610597fdc304bd32ecba40cdff0.tar.xz wireguard-linux-483dbf6a35907610597fdc304bd32ecba40cdff0.zip | |
arm64/sve: Split _sve_flush macro into separate Z and predicate flushes
Trivial refactoring to support further work, no change to generated code.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210512151131.27877-2-broonie@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
| -rw-r--r-- | arch/arm64/include/asm/fpsimdmacros.h | 4 | ||||
| -rw-r--r-- | arch/arm64/kernel/entry-fpsimd.S | 3 |
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/fpsimdmacros.h b/arch/arm64/include/asm/fpsimdmacros.h index a2563992d2dc..059204477ce6 100644 --- a/arch/arm64/include/asm/fpsimdmacros.h +++ b/arch/arm64/include/asm/fpsimdmacros.h @@ -213,8 +213,10 @@ mov v\nz\().16b, v\nz\().16b .endm -.macro sve_flush +.macro sve_flush_z _for n, 0, 31, _sve_flush_z \n +.endm +.macro sve_flush_p_ffr _for n, 0, 15, _sve_pfalse \n _sve_wrffr 0 .endm diff --git a/arch/arm64/kernel/entry-fpsimd.S b/arch/arm64/kernel/entry-fpsimd.S index 3ecec60d3295..7921d58427c2 100644 --- a/arch/arm64/kernel/entry-fpsimd.S +++ b/arch/arm64/kernel/entry-fpsimd.S @@ -72,7 +72,8 @@ SYM_FUNC_END(sve_load_from_fpsimd_state) /* Zero all SVE registers but the first 128-bits of each vector */ SYM_FUNC_START(sve_flush_live) - sve_flush + sve_flush_z + sve_flush_p_ffr ret SYM_FUNC_END(sve_flush_live) |