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-rw-r--r--arch/powerpc/perf/isa207-common.c91
1 files changed, 72 insertions, 19 deletions
diff --git a/arch/powerpc/perf/isa207-common.c b/arch/powerpc/perf/isa207-common.c
index 4c86da5eb28a..964437adec18 100644
--- a/arch/powerpc/perf/isa207-common.c
+++ b/arch/powerpc/perf/isa207-common.c
@@ -55,7 +55,9 @@ static bool is_event_valid(u64 event)
{
u64 valid_mask = EVENT_VALID_MASK;
- if (cpu_has_feature(CPU_FTR_ARCH_300))
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+ valid_mask = p10_EVENT_VALID_MASK;
+ else if (cpu_has_feature(CPU_FTR_ARCH_300))
valid_mask = p9_EVENT_VALID_MASK;
return !(event & ~valid_mask);
@@ -69,6 +71,14 @@ static inline bool is_event_marked(u64 event)
return false;
}
+static unsigned long sdar_mod_val(u64 event)
+{
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+ return p10_SDAR_MODE(event);
+
+ return p9_SDAR_MODE(event);
+}
+
static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
{
/*
@@ -79,7 +89,7 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
* MMCRA[SDAR_MODE] will be programmed as "0b01" for continous sampling
* mode and will be un-changed when setting MMCRA[63] (Marked events).
*
- * Incase of Power9:
+ * Incase of Power9/power10:
* Marked event: MMCRA[SDAR_MODE] will be set to 0b00 ('No Updates'),
* or if group already have any marked events.
* For rest
@@ -90,8 +100,8 @@ static void mmcra_sdar_mode(u64 event, unsigned long *mmcra)
if (cpu_has_feature(CPU_FTR_ARCH_300)) {
if (is_event_marked(event) || (*mmcra & MMCRA_SAMPLE_ENABLE))
*mmcra &= MMCRA_SDAR_MODE_NO_UPDATES;
- else if (p9_SDAR_MODE(event))
- *mmcra |= p9_SDAR_MODE(event) << MMCRA_SDAR_MODE_SHIFT;
+ else if (sdar_mod_val(event))
+ *mmcra |= sdar_mod_val(event) << MMCRA_SDAR_MODE_SHIFT;
else
*mmcra |= MMCRA_SDAR_MODE_DCACHE;
} else
@@ -134,7 +144,11 @@ static bool is_thresh_cmp_valid(u64 event)
/*
* Check the mantissa upper two bits are not zero, unless the
* exponent is also zero. See the THRESH_CMP_MANTISSA doc.
+ * Power10: thresh_cmp is replaced by l2_l3 event select.
*/
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+ return false;
+
cmp = (event >> EVENT_THR_CMP_SHIFT) & EVENT_THR_CMP_MASK;
exp = cmp >> 7;
@@ -251,7 +265,12 @@ int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp)
pmc = (event >> EVENT_PMC_SHIFT) & EVENT_PMC_MASK;
unit = (event >> EVENT_UNIT_SHIFT) & EVENT_UNIT_MASK;
- cache = (event >> EVENT_CACHE_SEL_SHIFT) & EVENT_CACHE_SEL_MASK;
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+ cache = (event >> EVENT_CACHE_SEL_SHIFT) &
+ p10_EVENT_CACHE_SEL_MASK;
+ else
+ cache = (event >> EVENT_CACHE_SEL_SHIFT) &
+ EVENT_CACHE_SEL_MASK;
ebb = (event >> EVENT_EBB_SHIFT) & EVENT_EBB_MASK;
if (pmc) {
@@ -283,7 +302,10 @@ int isa207_get_constraint(u64 event, unsigned long *maskp, unsigned long *valp)
}
if (unit >= 6 && unit <= 9) {
- if (cpu_has_feature(CPU_FTR_ARCH_300)) {
+ if (cpu_has_feature(CPU_FTR_ARCH_31) && (unit == 6)) {
+ mask |= CNST_L2L3_GROUP_MASK;
+ value |= CNST_L2L3_GROUP_VAL(event >> p10_L2L3_EVENT_SHIFT);
+ } else if (cpu_has_feature(CPU_FTR_ARCH_300)) {
mask |= CNST_CACHE_GROUP_MASK;
value |= CNST_CACHE_GROUP_VAL(event & 0xff);
@@ -363,10 +385,11 @@ 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[],
+ unsigned int hwc[], struct mmcr_regs *mmcr,
struct perf_event *pevents[])
{
unsigned long mmcra, mmcr1, mmcr2, unit, combine, psel, cache, val;
+ unsigned long mmcr3;
unsigned int pmc, pmc_inuse;
int i;
@@ -379,7 +402,14 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
pmc_inuse |= 1 << pmc;
}
- mmcra = mmcr1 = mmcr2 = 0;
+ mmcra = mmcr1 = mmcr2 = mmcr3 = 0;
+
+ /*
+ * Disable bhrb unless explicitly requested
+ * by setting MMCRA (BHRBRD) bit.
+ */
+ if (cpu_has_feature(CPU_FTR_ARCH_31))
+ mmcra |= MMCRA_BHRB_DISABLE;
/* Second pass: assign PMCs, set all MMCR1 fields */
for (i = 0; i < n_ev; ++i) {
@@ -438,8 +468,17 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
mmcra |= val << MMCRA_THR_CTL_SHIFT;
val = (event[i] >> EVENT_THR_SEL_SHIFT) & EVENT_THR_SEL_MASK;
mmcra |= val << MMCRA_THR_SEL_SHIFT;
- val = (event[i] >> EVENT_THR_CMP_SHIFT) & EVENT_THR_CMP_MASK;
- mmcra |= thresh_cmp_val(val);
+ if (!cpu_has_feature(CPU_FTR_ARCH_31)) {
+ val = (event[i] >> EVENT_THR_CMP_SHIFT) &
+ EVENT_THR_CMP_MASK;
+ mmcra |= thresh_cmp_val(val);
+ }
+ }
+
+ if (cpu_has_feature(CPU_FTR_ARCH_31) && (unit == 6)) {
+ val = (event[i] >> p10_L2L3_EVENT_SHIFT) &
+ p10_EVENT_L2L3_SEL_MASK;
+ mmcr2 |= val << p10_L2L3_SEL_SHIFT;
}
if (event[i] & EVENT_WANTS_BHRB) {
@@ -447,6 +486,11 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
mmcra |= val << MMCRA_IFM_SHIFT;
}
+ /* set MMCRA (BHRBRD) to 0 if there is user request for BHRB */
+ if (cpu_has_feature(CPU_FTR_ARCH_31) &&
+ (has_branch_stack(pevents[i]) || (event[i] & EVENT_WANTS_BHRB)))
+ mmcra &= ~MMCRA_BHRB_DISABLE;
+
if (pevents[i]->attr.exclude_user)
mmcr2 |= MMCR2_FCP(pmc);
@@ -460,34 +504,43 @@ int isa207_compute_mmcr(u64 event[], int n_ev,
mmcr2 |= MMCR2_FCS(pmc);
}
+ if (cpu_has_feature(CPU_FTR_ARCH_31)) {
+ if (pmc <= 4) {
+ val = (event[i] >> p10_EVENT_MMCR3_SHIFT) &
+ p10_EVENT_MMCR3_MASK;
+ mmcr3 |= val << MMCR3_SHIFT(pmc);
+ }
+ }
+
hwc[i] = pmc - 1;
}
/* Return MMCRx values */
- mmcr[0] = 0;
+ mmcr->mmcr0 = 0;
/* pmc_inuse is 1-based */
if (pmc_inuse & 2)
- mmcr[0] = MMCR0_PMC1CE;
+ mmcr->mmcr0 = MMCR0_PMC1CE;
if (pmc_inuse & 0x7c)
- mmcr[0] |= MMCR0_PMCjCE;
+ mmcr->mmcr0 |= MMCR0_PMCjCE;
/* If we're not using PMC 5 or 6, freeze them */
if (!(pmc_inuse & 0x60))
- mmcr[0] |= MMCR0_FC56;
+ mmcr->mmcr0 |= MMCR0_FC56;
- mmcr[1] = mmcr1;
- mmcr[2] = mmcra;
- mmcr[3] = mmcr2;
+ mmcr->mmcr1 = mmcr1;
+ mmcr->mmcra = mmcra;
+ mmcr->mmcr2 = mmcr2;
+ mmcr->mmcr3 = mmcr3;
return 0;
}
-void isa207_disable_pmc(unsigned int pmc, unsigned long mmcr[])
+void isa207_disable_pmc(unsigned int pmc, struct mmcr_regs *mmcr)
{
if (pmc <= 3)
- mmcr[1] &= ~(0xffUL << MMCR1_PMCSEL_SHIFT(pmc + 1));
+ mmcr->mmcr1 &= ~(0xffUL << MMCR1_PMCSEL_SHIFT(pmc + 1));
}
static int find_alternative(u64 event, const unsigned int ev_alt[][MAX_ALT], int size)
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-04-27 01:40:17 +0000