powerpc/perf: Pass the struct perf_events down to compute_mmcr()

To support per-event exclude settings on Power8 we need access to the
struct perf_events in compute_mmcr().
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/perf_event_server.h

@@ -19,6 +19,8 @@
 #define MAX_EVENT_ALTERNATIVES	8
 #define MAX_LIMITED_HWCOUNTERS	2
 
+struct perf_event;
+
 /*
  * This struct provides the constants and functions needed to
  * describe the PMU on a particular POWER-family CPU.
@@ -30,7 +32,8 @@ struct power_pmu {
 	unsigned long	add_fields;
 	unsigned long	test_adder;
 	int		(*compute_mmcr)(u64 events[], int n_ev,
-				unsigned int hwc[], unsigned long mmcr[]);
+				unsigned int hwc[], unsigned long mmcr[],
+				struct perf_event *pevents[]);
 	int		(*get_constraint)(u64 event_id, unsigned long *mskp,
 				unsigned long *valp);
 	int		(*get_alternatives)(u64 event_id, unsigned int flags,

arch/powerpc/perf/core-book3s.c

@@ -1224,7 +1224,7 @@ static void power_pmu_enable(struct pmu *pmu)
 	memset(cpuhw->mmcr, 0, sizeof(cpuhw->mmcr));
 
 	if (ppmu->compute_mmcr(cpuhw->events, cpuhw->n_events, hwc_index,
-			       cpuhw->mmcr)) {
+			       cpuhw->mmcr, cpuhw->event)) {
 		/* shouldn't ever get here */
 		printk(KERN_ERR "oops compute_mmcr failed\n");
 		goto out;

arch/powerpc/perf/mpc7450-pmu.c

@@ -260,8 +260,9 @@ static const u32 pmcsel_mask[N_COUNTER] = {
 /*
  * Compute MMCR0/1/2 values for a set of events.
  */
-static int mpc7450_compute_mmcr(u64 event[], int n_ev,
-				unsigned int hwc[], unsigned long mmcr[])
+static int mpc7450_compute_mmcr(u64 event[], int n_ev, unsigned int hwc[],
+				unsigned long mmcr[],
+				struct perf_event *pevents[])
 {
 	u8 event_index[N_CLASSES][N_COUNTER];
 	int n_classevent[N_CLASSES];

arch/powerpc/perf/power4-pmu.c

@@ -356,7 +356,7 @@ static int p4_get_alternatives(u64 event, unsigned int flags, u64 alt[])
 }
 
 static int p4_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 mmcr0 = 0, mmcr1 = 0, mmcra = 0;
 	unsigned int pmc, unit, byte, psel, lower;

arch/powerpc/perf/power5+-pmu.c

@@ -452,7 +452,7 @@ static int power5p_marked_instr_event(u64 event)
 }
 
 static int power5p_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 mmcr1 = 0;
 	unsigned long mmcra = 0;

arch/powerpc/perf/power5-pmu.c

@@ -383,7 +383,7 @@ static int power5_marked_instr_event(u64 event)
 }
 
 static int power5_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 mmcr1 = 0;
 	unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;

arch/powerpc/perf/power6-pmu.c

@@ -175,7 +175,7 @@ static int power6_marked_instr_event(u64 event)
  * Assign PMC numbers and compute MMCR1 value for a set of events
  */
 static int p6_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 mmcr1 = 0;
 	unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;

arch/powerpc/perf/power7-pmu.c

@@ -245,7 +245,7 @@ static int power7_marked_instr_event(u64 event)
 }
 
 static int power7_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 mmcr1 = 0;
 	unsigned long mmcra = MMCRA_SDAR_DCACHE_MISS | MMCRA_SDAR_ERAT_MISS;

arch/powerpc/perf/power8-pmu.c

@@ -393,7 +393,8 @@ 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 int pmc, pmc_inuse;

arch/powerpc/perf/ppc970-pmu.c

@@ -257,7 +257,7 @@ static int p970_get_alternatives(u64 event, unsigned int flags, u64 alt[])
 }
 
 static int p970_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 mmcr0 = 0, mmcr1 = 0, mmcra = 0;
 	unsigned int pmc, unit, byte, psel;