tools headers UAPI: Sync linux/prctl.h with the kernel sources

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

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Brown <broonie@kernel.org>
Link: http://lore.kernel.org/lkml/Yq81we+XFOqlBWyu@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
index e998764f0262522903f04101f945a73a2f724a36..a5e06dcbba136d618c6dcf61f0cbb6e3bfe9ea2c 100644 (file)
--- a/tools/include/uapi/linux/prctl.h
+++ b/tools/include/uapi/linux/prctl.h
@@ -272,6 +272,15 @@ struct prctl_mm_map {
 # define PR_SCHED_CORE_SCOPE_THREAD_GROUP      1
 # define PR_SCHED_CORE_SCOPE_PROCESS_GROUP     2
 
+/* arm64 Scalable Matrix Extension controls */
+/* Flag values must be in sync with SVE versions */
+#define PR_SME_SET_VL                  63      /* set task vector length */
+# define PR_SME_SET_VL_ONEXEC          (1 << 18) /* defer effect until exec */
+#define PR_SME_GET_VL                  64      /* get task vector length */
+/* Bits common to PR_SME_SET_VL and PR_SME_GET_VL */
+# define PR_SME_VL_LEN_MASK            0xffff
+# define PR_SME_VL_INHERIT             (1 << 17) /* inherit across exec */
+
 #define PR_SET_VMA             0x53564d41
 # define PR_SET_VMA_ANON_NAME          0