@@ -695,6 +695,7 @@ enum perf_callchain_context {
#define PERF_FLAG_FD_OUTPUT (1U << 1)
#define PERF_FLAG_PID_CGROUP (1U << 2) /* pid=cgroup id, per-cpu mode only */
+#if defined(__LITTLE_ENDIAN_BITFIELD)
union perf_mem_data_src {
__u64 val;
struct {
@@ -706,6 +707,21 @@ 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 */
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. Cc: Stephane Eranian <eranian@google.com> Cc: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> --- Changelog [v6] - [Michael Ellerman] Use __BIG_ENDIAN_BITFIELD to simplify the endian check. Changelog [v5]: - perf_event.h includes <byteorder.h> which pulls in the local byteorder.h when building the perf tool. This local byteorder.h leaves __LITTLE_ENDIAN and __BIG_ENDIAN undefined. Include <endian.h> explicitly in the local byteorder.h. Changelog [v2]: - [Vince Weaver, Michael Ellerman] No __KERNEL__ in uapi headers. include/uapi/linux/perf_event.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)