[PATCH 1/9] tools headers uapi: Update tools's copy of linux/perf_event.h

kan.liang
2021-02-02T20:16:36Z

From: Kan Liang <kan.liang@linux.intel.com>

To get the changes in:

commit 2a6c6b7d7ad3 ("perf/core: Add PERF_SAMPLE_WEIGHT_STRUCT")

This cures the following warning during perf's build:

Warning: Kernel ABI header at
'tools/include/uapi/linux/perf_event.h' differs from latest version at
'include/uapi/linux/perf_event.h'
diff -u tools/include/uapi/linux/perf_event.h
include/uapi/linux/perf_event.h

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---
tools/include/uapi/linux/perf_event.h | 54 ++++++++++++++++++++++++++++++++---
1 file changed, 50 insertions(+), 4 deletions(-)

diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index b15e344..7d292de5 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -145,12 +145,14 @@ enum perf_event_sample_format {
PERF_SAMPLE_CGROUP = 1U << 21,
PERF_SAMPLE_DATA_PAGE_SIZE = 1U << 22,
PERF_SAMPLE_CODE_PAGE_SIZE = 1U << 23,
+ PERF_SAMPLE_WEIGHT_STRUCT = 1U << 24,

- PERF_SAMPLE_MAX = 1U << 24, /* non-ABI */
+ PERF_SAMPLE_MAX = 1U << 25, /* non-ABI */

__PERF_SAMPLE_CALLCHAIN_EARLY = 1ULL << 63, /* non-ABI; internal use */
};

+#define PERF_SAMPLE_WEIGHT_TYPE (PERF_SAMPLE_WEIGHT | PERF_SAMPLE_WEIGHT_STRUCT)
/*
* values to program into branch_sample_type when PERF_SAMPLE_BRANCH is set
*
@@ -890,7 +892,24 @@ enum perf_event_type {
* char data[size];
* u64 dyn_size; } && PERF_SAMPLE_STACK_USER
*
- * { u64 weight; } && PERF_SAMPLE_WEIGHT
+ * { union perf_sample_weight
+ * {
+ * u64 full; && PERF_SAMPLE_WEIGHT
+ * #if defined(__LITTLE_ENDIAN_BITFIELD)
+ * struct {
+ * u32 var1_dw;
+ * u16 var2_w;
+ * u16 var3_w;
+ * } && PERF_SAMPLE_WEIGHT_STRUCT
+ * #elif defined(__BIG_ENDIAN_BITFIELD)
+ * struct {
+ * u16 var3_w;
+ * u16 var2_w;
+ * u32 var1_dw;
+ * } && PERF_SAMPLE_WEIGHT_STRUCT
+ * #endif
+ * }
+ * }
* { u64 data_src; } && PERF_SAMPLE_DATA_SRC
* { u64 transaction; } && PERF_SAMPLE_TRANSACTION
* { u64 abi; # enum perf_sample_regs_abi
@@ -1127,14 +1146,16 @@ union perf_mem_data_src {
mem_lvl_num:4, /* memory hierarchy level number */
mem_remote:1, /* remote */
mem_snoopx:2, /* snoop mode, ext */
- mem_rsvd:24;
+ mem_blk:3, /* access blocked */
+ mem_rsvd:21;
};
};
#elif defined(__BIG_ENDIAN_BITFIELD)
union perf_mem_data_src {
__u64 val;
struct {
- __u64 mem_rsvd:24,
+ __u64 mem_rsvd:21,
+ mem_blk:3, /* access blocked */
mem_snoopx:2, /* snoop mode, ext */
mem_remote:1, /* remote */
mem_lvl_num:4, /* memory hierarchy level number */
@@ -1217,6 +1238,12 @@ union perf_mem_data_src {
#define PERF_MEM_TLB_OS 0x40 /* OS fault handler */
#define PERF_MEM_TLB_SHIFT 26

+/* Access blocked */
+#define PERF_MEM_BLK_NA 0x01 /* not available */
+#define PERF_MEM_BLK_DATA 0x02 /* data could not be forwarded */
+#define PERF_MEM_BLK_ADDR 0x04 /* address conflict */
+#define PERF_MEM_BLK_SHIFT 40
+
#define PERF_MEM_S(a, s) \
(((__u64)PERF_MEM_##a##_##s) << PERF_MEM_##a##_SHIFT)

@@ -1248,4 +1275,23 @@ struct perf_branch_entry {
reserved:40;
};

+union perf_sample_weight {
+ __u64 full;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ struct {
+ __u32 var1_dw;
+ __u16 var2_w;
+ __u16 var3_w;
+ };
+#elif defined(__BIG_ENDIAN_BITFIELD)
+ struct {
+ __u16 var3_w;
+ __u16 var2_w;
+ __u32 var1_dw;
+ };
+#else
+#error "Unknown endianness"
+#endif
+};
+
#endif /* _UAPI_LINUX_PERF_EVENT_H */
--
2.7.4