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authorMadhavan Srinivasan <maddy@linux.vnet.ibm.com>2017-02-12 18:03:12 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-17 11:48:53 +0100
commita114aca57a59cd92189bf3795ac082a5e8fac0f1 (patch)
treea025ccd1f67230e4fe7315269a60a7f7a09a9644 /arch
parentpowerpc/perf: Add PM_INST_DISP event to Power9 event list (diff)
downloadlinux-a114aca57a59cd92189bf3795ac082a5e8fac0f1.tar.xz
linux-a114aca57a59cd92189bf3795ac082a5e8fac0f1.zip
powerpc/perf: Add alternative event table and function for power9
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/perf/power9-pmu.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index 7332634e18c9..b38acff8a791 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c
@@ -106,6 +106,21 @@ enum {
/* PowerISA v2.07 format attribute structure*/
extern struct attribute_group isa207_pmu_format_group;
+/* Table of alternatives, sorted by column 0 */
+static const unsigned int power9_event_alternatives[][MAX_ALT] = {
+ { PM_INST_DISP, PM_INST_DISP_ALT },
+};
+
+static int power9_get_alternatives(u64 event, unsigned int flags, u64 alt[])
+{
+ int num_alt = 0;
+
+ num_alt = isa207_get_alternatives(event, alt, power9_event_alternatives,
+ (int)ARRAY_SIZE(power9_event_alternatives));
+
+ return num_alt;
+}
+
GENERIC_EVENT_ATTR(cpu-cycles, PM_CYC);
GENERIC_EVENT_ATTR(stalled-cycles-frontend, PM_ICT_NOSLOT_CYC);
GENERIC_EVENT_ATTR(stalled-cycles-backend, PM_CMPLU_STALL);
@@ -383,6 +398,7 @@ static struct power_pmu power9_isa207_pmu = {
.config_bhrb = power9_config_bhrb,
.bhrb_filter_map = power9_bhrb_filter_map,
.get_constraint = isa207_get_constraint,
+ .get_alternatives = power9_get_alternatives,
.disable_pmc = isa207_disable_pmc,
.flags = PPMU_NO_SIAR | PPMU_ARCH_207S,
.n_generic = ARRAY_SIZE(power9_generic_events),
@@ -401,6 +417,7 @@ static struct power_pmu power9_pmu = {
.config_bhrb = power9_config_bhrb,
.bhrb_filter_map = power9_bhrb_filter_map,
.get_constraint = isa207_get_constraint,
+ .get_alternatives = power9_get_alternatives,
.disable_pmc = isa207_disable_pmc,
.flags = PPMU_HAS_SIER | PPMU_ARCH_207S,
.n_generic = ARRAY_SIZE(power9_generic_events),