Re: [PATCH RESEND v4 2/8] tools/include: Sync uapi/linux/perf.h with the kernel sources
From: Leo Yan <leo.yan@arm.com>
Date: 2026-01-16 15:27:05
Also in:
linux-perf-users, lkml
On Tue, Jan 06, 2026 at 12:07:52PM +0000, Leo Yan wrote:
Sync for extended memory operation bit fields.
Hi Peter, Ingo, This patch is important for enabling the Arm SPE feature, I appreciate if you could give a review; otherwise, the changes in the perf cannot proceed. Thanks a lot!
quoted hunk ↗ jump to hunk
Reviewed-by: James Clark <james.clark@linaro.org> Reviewed-by: Ian Rogers <irogers@google.com> Signed-off-by: Leo Yan <leo.yan@arm.com> --- tools/include/uapi/linux/perf_event.h | 32 ++++++++++++++++++++++++++++++-- 1 file changed, 30 insertions(+), 2 deletions(-)diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h index c44a8fb3e4181c91a1e6e3a40e23fcf1de421af3..3d2c5ee9282efc4a2310f554443082f1d0027889 100644 --- a/tools/include/uapi/linux/perf_event.h +++ b/tools/include/uapi/linux/perf_event.h@@ -1330,14 +1330,32 @@ union perf_mem_data_src { mem_snoopx : 2, /* Snoop mode, ext */ mem_blk : 3, /* Access blocked */ mem_hops : 3, /* Hop level */ - mem_rsvd : 18; + mem_op_ext : 4, /* Extended type of opcode */ + mem_dp : 1, /* Data processing */ + mem_fp : 1, /* Floating-point */ + mem_pred : 1, /* Predicated */ + mem_atomic : 1, /* Atomic operation */ + mem_excl : 1, /* Exclusive */ + mem_ar : 1, /* Acquire/release */ + mem_sg : 1, /* Scatter/Gather */ + mem_cond : 1, /* Conditional */ + mem_rsvd : 6; }; }; #elif defined(__BIG_ENDIAN_BITFIELD) union perf_mem_data_src { __u64 val; struct { - __u64 mem_rsvd : 18, + __u64 mem_rsvd : 6, + mem_cond : 1, /* Conditional */ + mem_sg : 1, /* Scatter/Gather */ + mem_ar : 1, /* Acquire/release */ + mem_excl : 1, /* Exclusive */ + mem_atomic : 1, /* Atomic operation */ + mem_pred : 1, /* Predicated */ + mem_fp : 1, /* Floating-point */ + mem_dp : 1, /* Data processing */ + mem_op_ext : 4, /* Extended type of opcode */ mem_hops : 3, /* Hop level */ mem_blk : 3, /* Access blocked */ mem_snoopx : 2, /* Snoop mode, ext */@@ -1447,6 +1465,16 @@ union perf_mem_data_src { /* 5-7 available */ #define PERF_MEM_HOPS_SHIFT 43 +/* Extended type of memory opcode: */ +#define PERF_MEM_EXT_OP_NA 0x0 /* Not available */ +#define PERF_MEM_EXT_OP_MTE_TAG 0x1 /* MTE tag */ +#define PERF_MEM_EXT_OP_NESTED_VIRT 0x2 /* Nested virtualization */ +#define PERF_MEM_EXT_OP_MEMCPY 0x3 /* Memory copy */ +#define PERF_MEM_EXT_OP_MEMSET 0x4 /* Memory set */ +#define PERF_MEM_EXT_OP_SIMD 0x5 /* SIMD */ +#define PERF_MEM_EXT_OP_GCS 0x6 /* Guarded Control Stack */ +#define PERF_MEM_EXT_OP_SHIFT 46 + #define PERF_MEM_S(a, s) \ (((__u64)PERF_MEM_##a##_##s) << PERF_MEM_##a##_SHIFT)-- 2.34.1