perf_mem_data_src is an union that is initialized via the ->val field
and accessed via the bitmap fields. For this to work on big endian
platforms, we also need a big-endian represenation of perf_mem_data_src.

Signed-off-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Ingo Molnar <mi...@redhat.com>
Cc: Arnaldo Carvalho de Melo <a...@kernel.org>
Cc: Alexander Shishkin <alexander.shish...@linux.intel.com>
Cc: Wang Nan <wangn...@huawei.com>
Cc: Alexei Starovoitov <a...@kernel.org>
Cc: Stephane Eranian <eran...@google.com>
Cc: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com>
---
 include/uapi/linux/perf_event.h       | 16 ++++++++++++++++
 tools/include/uapi/linux/perf_event.h | 16 ++++++++++++++++
 2 files changed, 32 insertions(+)

diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index c66a485a24ac..c4af1159a200 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -891,6 +891,7 @@ enum perf_callchain_context {
 #define PERF_FLAG_PID_CGROUP           (1UL << 2) /* pid=cgroup id, per-cpu 
mode only */
 #define PERF_FLAG_FD_CLOEXEC           (1UL << 3) /* O_CLOEXEC */
 
+#if defined(__LITTLE_ENDIAN_BITFIELD)
 union perf_mem_data_src {
        __u64 val;
        struct {
@@ -902,6 +903,21 @@ union perf_mem_data_src {
                        mem_rsvd:31;
        };
 };
+#elif defined(__BIG_ENDIAN_BITFIELD)
+union perf_mem_data_src {
+       __u64 val;
+       struct {
+               __u64   mem_rsvd:31,
+                       mem_dtlb:7,     /* tlb access */
+                       mem_lock:2,     /* lock instr */
+                       mem_snoop:5,    /* snoop mode */
+                       mem_lvl:14,     /* memory hierarchy level */
+                       mem_op:5;       /* type of opcode */
+       };
+};
+#else
+#error "Unknown endianness"
+#endif
 
 /* type of opcode (load/store/prefetch,code) */
 #define PERF_MEM_OP_NA         0x01 /* not available */
diff --git a/tools/include/uapi/linux/perf_event.h 
b/tools/include/uapi/linux/perf_event.h
index c66a485a24ac..c4af1159a200 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -891,6 +891,7 @@ enum perf_callchain_context {
 #define PERF_FLAG_PID_CGROUP           (1UL << 2) /* pid=cgroup id, per-cpu 
mode only */
 #define PERF_FLAG_FD_CLOEXEC           (1UL << 3) /* O_CLOEXEC */
 
+#if defined(__LITTLE_ENDIAN_BITFIELD)
 union perf_mem_data_src {
        __u64 val;
        struct {
@@ -902,6 +903,21 @@ union perf_mem_data_src {
                        mem_rsvd:31;
        };
 };
+#elif defined(__BIG_ENDIAN_BITFIELD)
+union perf_mem_data_src {
+       __u64 val;
+       struct {
+               __u64   mem_rsvd:31,
+                       mem_dtlb:7,     /* tlb access */
+                       mem_lock:2,     /* lock instr */
+                       mem_snoop:5,    /* snoop mode */
+                       mem_lvl:14,     /* memory hierarchy level */
+                       mem_op:5;       /* type of opcode */
+       };
+};
+#else
+#error "Unknown endianness"
+#endif
 
 /* type of opcode (load/store/prefetch,code) */
 #define PERF_MEM_OP_NA         0x01 /* not available */
-- 
2.7.4

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