summaryrefslogtreecommitdiffstats
path: root/arch/powerpc/perf/power8-pmu.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/perf/power8-pmu.c')
-rw-r--r--arch/powerpc/perf/power8-pmu.c27
1 files changed, 24 insertions, 3 deletions
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index 639cd9156585..396351db601b 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/perf_event.h>
#include <asm/firmware.h>
+#include <asm/cputable.h>
/*
@@ -266,6 +267,11 @@
#define MMCRA_SDAR_MODE_TLB (1ull << 42)
#define MMCRA_IFM_SHIFT 30
+/* Bits in MMCR2 for POWER8 */
+#define MMCR2_FCS(pmc) (1ull << (63 - (((pmc) - 1) * 9)))
+#define MMCR2_FCP(pmc) (1ull << (62 - (((pmc) - 1) * 9)))
+#define MMCR2_FCH(pmc) (1ull << (57 - (((pmc) - 1) * 9)))
+
static inline bool event_is_fab_match(u64 event)
{
@@ -393,9 +399,10 @@ static int power8_get_constraint(u64 event, unsigned long *maskp, unsigned long
}
static int power8_compute_mmcr(u64 event[], int n_ev,
- unsigned int hwc[], unsigned long mmcr[])
+ unsigned int hwc[], unsigned long mmcr[],
+ struct perf_event *pevents[])
{
- unsigned long mmcra, mmcr1, unit, combine, psel, cache, val;
+ unsigned long mmcra, mmcr1, mmcr2, unit, combine, psel, cache, val;
unsigned int pmc, pmc_inuse;
int i;
@@ -410,7 +417,7 @@ static int power8_compute_mmcr(u64 event[], int n_ev,
/* In continous sampling mode, update SDAR on TLB miss */
mmcra = MMCRA_SDAR_MODE_TLB;
- mmcr1 = 0;
+ mmcr1 = mmcr2 = 0;
/* Second pass: assign PMCs, set all MMCR1 fields */
for (i = 0; i < n_ev; ++i) {
@@ -472,6 +479,19 @@ static int power8_compute_mmcr(u64 event[], int n_ev,
mmcra |= val << MMCRA_IFM_SHIFT;
}
+ if (pevents[i]->attr.exclude_user)
+ mmcr2 |= MMCR2_FCP(pmc);
+
+ if (pevents[i]->attr.exclude_hv)
+ mmcr2 |= MMCR2_FCH(pmc);
+
+ if (pevents[i]->attr.exclude_kernel) {
+ if (cpu_has_feature(CPU_FTR_HVMODE))
+ mmcr2 |= MMCR2_FCH(pmc);
+ else
+ mmcr2 |= MMCR2_FCS(pmc);
+ }
+
hwc[i] = pmc - 1;
}
@@ -491,6 +511,7 @@ static int power8_compute_mmcr(u64 event[], int n_ev,
mmcr[1] = mmcr1;
mmcr[2] = mmcra;
+ mmcr[3] = mmcr2;
return 0;
}