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| author | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:14:13 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-03-22 02:15:08 +0300 |
| commit | 537c2e91d3549e5d6020bb0576cf9b54a845255f (patch) | |
| tree | c09e8a1b7d733cde19b0c72678c28fb2bc97ff6b /arch/arm64/include/uapi/asm/sve_context.h | |
| parent | 237bb5f7f7f55ec5f773469a974c61a49c298625 (diff) | |
| parent | cba9ffdb9913dfe6be29f049ce920ce451ce7cc4 (diff) | |
| download | linux-537c2e91d3549e5d6020bb0576cf9b54a845255f.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
Signed-off-by: Jakub Kicinski <kuba@kernel.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 754ab751b523..72aefc081061 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 |