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authorMadhavan Srinivasan <maddy@linux.vnet.ibm.com>2017-04-11 04:51:06 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2017-04-19 13:00:21 +0300
commit79e96f8f930d425ab48c511f8a6db16ca7fc68b1 (patch)
tree3387541ca447b33b95fdbd736e392098bc392143 /arch/powerpc/perf/isa207-common.h
parent8c5073db0ee680c7e70e123918c9b260e49f757d (diff)
downloadlinux-79e96f8f930d425ab48c511f8a6db16ca7fc68b1.tar.xz
powerpc/perf: Export memory hierarchy info to user space
The LDST field and DATA_SRC in SIER identifies the memory hierarchy level (eg: L1, L2 etc), from which a data-cache miss for a marked instruction was satisfied. Use the 'perf_mem_data_src' object to export this hierarchy level to user space. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/perf/isa207-common.h')
-rw-r--r--arch/powerpc/perf/isa207-common.h16
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/powerpc/perf/isa207-common.h b/arch/powerpc/perf/isa207-common.h
index 899210f14ee4..f711f337e358 100644
--- a/arch/powerpc/perf/isa207-common.h
+++ b/arch/powerpc/perf/isa207-common.h
@@ -260,6 +260,19 @@
#define MAX_ALT 2
#define MAX_PMU_COUNTERS 6
+#define ISA207_SIER_TYPE_SHIFT 15
+#define ISA207_SIER_TYPE_MASK (0x7ull << ISA207_SIER_TYPE_SHIFT)
+
+#define ISA207_SIER_LDST_SHIFT 1
+#define ISA207_SIER_LDST_MASK (0x7ull << ISA207_SIER_LDST_SHIFT)
+
+#define ISA207_SIER_DATA_SRC_SHIFT 53
+#define ISA207_SIER_DATA_SRC_MASK (0x7ull << ISA207_SIER_DATA_SRC_SHIFT)
+
+#define P(a, b) PERF_MEM_S(a, b)
+#define PH(a, b) (P(LVL, HIT) | P(a, b))
+#define PM(a, b) (P(LVL, MISS) | P(a, b))
+
int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp);
int isa207_compute_mmcr(u64 event[], int n_ev,
unsigned int hwc[], unsigned long mmcr[],
@@ -267,6 +280,7 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[]);
int isa207_get_alternatives(u64 event, u64 alt[],
const unsigned int ev_alt[][MAX_ALT], int size);
-
+void isa207_get_mem_data_src(union perf_mem_data_src *dsrc, u32 flags,
+ struct pt_regs *regs);
#endif