To pick the changes in: 9e4ab6c891094720 ("arm64/sme: Implement vector length configuration prctl()s") That don't result in any changes in tooling: $ tools/perf/trace/beauty/prctl_option.sh > before $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h $ tools/perf/trace/beauty/prctl_option.sh > after $ diff -u before after $ Just silences this perf tools build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h' diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h
Unified · Split
| @@ -272,6 +272,15 @@ struct prctl_mm_map { · 271 unmodified lines | ||
| 272 | 272 | # define PR_SCHED_CORE_SCOPE_THREAD_GROUP 1 |
| 273 | 273 | # define PR_SCHED_CORE_SCOPE_PROCESS_GROUP 2 |
| 274 | 274 | |
| 275 | +/* arm64 Scalable Matrix Extension controls */ | |
| 276 | +/* Flag values must be in sync with SVE versions */ | |
| 277 | +#define PR_SME_SET_VL 63 /* set task vector length */ | |
| 278 | +# define PR_SME_SET_VL_ONEXEC (1 << 18) /* defer effect until exec */ | |
| 279 | +#define PR_SME_GET_VL 64 /* get task vector length */ | |
| 280 | +/* Bits common to PR_SME_SET_VL and PR_SME_GET_VL */ | |
| 281 | +# define PR_SME_VL_LEN_MASK 0xffff | |
| 282 | +# define PR_SME_VL_INHERIT (1 << 17) /* inherit across exec */ | |
| 283 | + | |
| 275 | 284 | #define PR_SET_VMA 0x53564d41 |
| 276 | 285 | # define PR_SET_VMA_ANON_NAME 0 |
| 277 | 286 | |