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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-06-19 21:00:51 +0000 |
| commit | 6d03a247468059b0e59c821ef39e6762d4d6fc30 (patch) | |
| tree | 17b9c00de2c62e68c965c742cdbc206f77a375da /arch/arm64/include/uapi/asm/sve_context.h | |
| parent | Releasing progress-linux version 6.8.12-1~progress7.99u1. (diff) | |
| download | linux-6d03a247468059b0e59c821ef39e6762d4d6fc30.tar.xz linux-6d03a247468059b0e59c821ef39e6762d4d6fc30.zip | |
Merging upstream version 6.9.2.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm64/include/uapi/asm/sve_context.h')
| -rw-r--r-- | arch/arm64/include/uapi/asm/sve_context.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/sve_context.h b/arch/arm64/include/uapi/asm/sve_context.h index 754ab751b5..72aefc0810 100644 --- a/arch/arm64/include/uapi/asm/sve_context.h +++ b/arch/arm64/include/uapi/asm/sve_context.h @@ -13,6 +13,17 @@ #define __SVE_VQ_BYTES 16 /* number of bytes per quadword */ +/* + * Yes, __SVE_VQ_MAX is 512 QUADWORDS. + * + * To help ensure forward portability, this is much larger than the + * current maximum value defined by the SVE architecture. While arrays + * or static allocations can be sized based on this value, watch out! + * It will waste a surprisingly large amount of memory. + * + * Dynamic sizing based on the actual runtime vector length is likely to + * be preferable for most purposes. + */ #define __SVE_VQ_MIN 1 #define __SVE_VQ_MAX 512 |