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| author | Mark Brown <broonie@kernel.org> | 2022-12-27 17:20:41 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-01-20 15:42:31 +0300 |
| commit | 39e54499280f373d03ab7ffe681ca9d53a9089c9 (patch) | |
| tree | bc36790f611be011a0b8058f73244a76cff28db3 /arch/arm64/include/uapi/asm | |
| parent | 17d0c4a27b2ac90df99307af0b6b6a162805c4fc (diff) | |
| download | linux-39e54499280f373d03ab7ffe681ca9d53a9089c9.tar.xz | |
arm64/signal: Include TPIDR2 in the signal context
Add a new signal frame record for TPIDR2 using the same format as we
already use for ESR with different magic, a header with the value from the
register appended as the only data. If SME is supported then this record is
always included.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Link: https://lore.kernel.org/r/20221208-arm64-tpidr2-sig-v3-2-c77c6c8775f4@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/uapi/asm')
| -rw-r--r-- | arch/arm64/include/uapi/asm/sigcontext.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/sigcontext.h b/arch/arm64/include/uapi/asm/sigcontext.h index 9525041e4a14..4b4398d7fb2d 100644 --- a/arch/arm64/include/uapi/asm/sigcontext.h +++ b/arch/arm64/include/uapi/asm/sigcontext.h @@ -144,6 +144,14 @@ struct sve_context { #define SVE_SIG_FLAG_SM 0x1 /* Context describes streaming mode */ +/* TPIDR2_EL0 context */ +#define TPIDR2_MAGIC 0x54504902 + +struct tpidr2_context { + struct _aarch64_ctx head; + __u64 tpidr2; +}; + #define ZA_MAGIC 0x54366345 struct za_context { |