perf: xgene: Add support for SoC PMU version 3
This patch adds support for SoC-wide (AKA uncore) Performance Monitoring Unit version 3. It can support up to - 2 IOB PMU instances - 8 L3C PMU instances - 2 MCB PMU instances - 8 MCU PMU instances and these PMUs support 64 bit counter Signed-off-by: Hoan Tran <hotran@apm.com> [Mark: stop counters in _xgene_pmu_isr()] Signed-off-by: Mark Rutland <mark.rutland@arm.com> [will: make xgene_pmu_v3_ops static] Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Hoan Tran
Will Deacon
parent
e35e0a04a9
commit
c0f7f7acde
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@ -37,6 +37,8 @@
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#define CSW_CSWCR 0x0000
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#define CSW_CSWCR_DUALMCB_MASK BIT(0)
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#define CSW_CSWCR_MCB0_ROUTING(x) (((x) & 0x0C) >> 2)
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#define CSW_CSWCR_MCB1_ROUTING(x) (((x) & 0x30) >> 4)
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#define MCBADDRMR 0x0000
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#define MCBADDRMR_DUALMCU_MODE_MASK BIT(2)
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@ -50,8 +52,17 @@
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#define PCPPMU_INT_L3C BIT(2)
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#define PCPPMU_INT_IOB BIT(3)
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#define PCPPMU_V3_INTMASK 0x00FF33FF
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#define PCPPMU_V3_INTENMASK 0xFFFFFFFF
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#define PCPPMU_V3_INTCLRMASK 0xFF00CC00
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#define PCPPMU_V3_INT_MCU 0x000000FF
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#define PCPPMU_V3_INT_MCB 0x00000300
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#define PCPPMU_V3_INT_L3C 0x00FF0000
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#define PCPPMU_V3_INT_IOB 0x00003000
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#define PMU_MAX_COUNTERS 4
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#define PMU_CNT_MAX_PERIOD 0x100000000ULL
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#define PMU_CNT_MAX_PERIOD 0xFFFFFFFFULL
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#define PMU_V3_CNT_MAX_PERIOD 0xFFFFFFFFFFFFFFFFULL
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#define PMU_OVERFLOW_MASK 0xF
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#define PMU_PMCR_E BIT(0)
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#define PMU_PMCR_P BIT(1)
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@ -73,6 +84,10 @@
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#define PMU_PMOVSR 0xC80
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#define PMU_PMCR 0xE04
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/* PMU registers for V3 */
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#define PMU_PMOVSCLR 0xC80
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#define PMU_PMOVSSET 0xCC0
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#define to_pmu_dev(p) container_of(p, struct xgene_pmu_dev, pmu)
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#define GET_CNTR(ev) (ev->hw.idx)
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#define GET_EVENTID(ev) (ev->hw.config & 0xFFULL)
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@ -119,6 +134,7 @@ struct xgene_pmu {
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void __iomem *pcppmu_csr;
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u32 mcb_active_mask;
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u32 mc_active_mask;
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u32 l3c_active_mask;
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cpumask_t cpu;
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raw_spinlock_t lock;
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const struct xgene_pmu_ops *ops;
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@ -143,11 +159,13 @@ struct xgene_pmu_data {
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enum xgene_pmu_version {
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PCP_PMU_V1 = 1,
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PCP_PMU_V2,
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PCP_PMU_V3,
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};
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enum xgene_pmu_dev_type {
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PMU_TYPE_L3C = 0,
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PMU_TYPE_IOB,
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PMU_TYPE_IOB_SLOW,
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PMU_TYPE_MCB,
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PMU_TYPE_MC,
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};
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@ -213,6 +231,56 @@ static const struct attribute_group mc_pmu_format_attr_group = {
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.attrs = mc_pmu_format_attrs,
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};
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static struct attribute *l3c_pmu_v3_format_attrs[] = {
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XGENE_PMU_FORMAT_ATTR(l3c_eventid, "config:0-39"),
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NULL,
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};
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static struct attribute *iob_pmu_v3_format_attrs[] = {
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XGENE_PMU_FORMAT_ATTR(iob_eventid, "config:0-47"),
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NULL,
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};
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static struct attribute *iob_slow_pmu_v3_format_attrs[] = {
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XGENE_PMU_FORMAT_ATTR(iob_slow_eventid, "config:0-16"),
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NULL,
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};
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static struct attribute *mcb_pmu_v3_format_attrs[] = {
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XGENE_PMU_FORMAT_ATTR(mcb_eventid, "config:0-35"),
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NULL,
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};
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static struct attribute *mc_pmu_v3_format_attrs[] = {
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XGENE_PMU_FORMAT_ATTR(mc_eventid, "config:0-44"),
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NULL,
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};
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static const struct attribute_group l3c_pmu_v3_format_attr_group = {
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.name = "format",
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.attrs = l3c_pmu_v3_format_attrs,
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};
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static const struct attribute_group iob_pmu_v3_format_attr_group = {
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.name = "format",
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.attrs = iob_pmu_v3_format_attrs,
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};
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static const struct attribute_group iob_slow_pmu_v3_format_attr_group = {
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.name = "format",
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.attrs = iob_slow_pmu_v3_format_attrs,
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};
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static const struct attribute_group mcb_pmu_v3_format_attr_group = {
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.name = "format",
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.attrs = mcb_pmu_v3_format_attrs,
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};
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static const struct attribute_group mc_pmu_v3_format_attr_group = {
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.name = "format",
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.attrs = mc_pmu_v3_format_attrs,
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};
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/*
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* sysfs event attributes
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*/
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@ -329,6 +397,219 @@ static const struct attribute_group mc_pmu_events_attr_group = {
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.attrs = mc_pmu_events_attrs,
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};
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static struct attribute *l3c_pmu_v3_events_attrs[] = {
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XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
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XGENE_PMU_EVENT_ATTR(read-hit, 0x01),
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XGENE_PMU_EVENT_ATTR(read-miss, 0x02),
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XGENE_PMU_EVENT_ATTR(index-flush-eviction, 0x03),
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XGENE_PMU_EVENT_ATTR(write-caused-replacement, 0x04),
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XGENE_PMU_EVENT_ATTR(write-not-caused-replacement, 0x05),
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XGENE_PMU_EVENT_ATTR(clean-eviction, 0x06),
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XGENE_PMU_EVENT_ATTR(dirty-eviction, 0x07),
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XGENE_PMU_EVENT_ATTR(read, 0x08),
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XGENE_PMU_EVENT_ATTR(write, 0x09),
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XGENE_PMU_EVENT_ATTR(request, 0x0a),
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XGENE_PMU_EVENT_ATTR(tq-bank-conflict-issue-stall, 0x0b),
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XGENE_PMU_EVENT_ATTR(tq-full, 0x0c),
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XGENE_PMU_EVENT_ATTR(ackq-full, 0x0d),
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XGENE_PMU_EVENT_ATTR(wdb-full, 0x0e),
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XGENE_PMU_EVENT_ATTR(odb-full, 0x10),
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XGENE_PMU_EVENT_ATTR(wbq-full, 0x11),
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XGENE_PMU_EVENT_ATTR(input-req-async-fifo-stall, 0x12),
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XGENE_PMU_EVENT_ATTR(output-req-async-fifo-stall, 0x13),
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XGENE_PMU_EVENT_ATTR(output-data-async-fifo-stall, 0x14),
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XGENE_PMU_EVENT_ATTR(total-insertion, 0x15),
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XGENE_PMU_EVENT_ATTR(sip-insertions-r-set, 0x16),
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XGENE_PMU_EVENT_ATTR(sip-insertions-r-clear, 0x17),
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XGENE_PMU_EVENT_ATTR(dip-insertions-r-set, 0x18),
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XGENE_PMU_EVENT_ATTR(dip-insertions-r-clear, 0x19),
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XGENE_PMU_EVENT_ATTR(dip-insertions-force-r-set, 0x1a),
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XGENE_PMU_EVENT_ATTR(egression, 0x1b),
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XGENE_PMU_EVENT_ATTR(replacement, 0x1c),
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XGENE_PMU_EVENT_ATTR(old-replacement, 0x1d),
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XGENE_PMU_EVENT_ATTR(young-replacement, 0x1e),
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XGENE_PMU_EVENT_ATTR(r-set-replacement, 0x1f),
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XGENE_PMU_EVENT_ATTR(r-clear-replacement, 0x20),
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XGENE_PMU_EVENT_ATTR(old-r-replacement, 0x21),
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XGENE_PMU_EVENT_ATTR(old-nr-replacement, 0x22),
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XGENE_PMU_EVENT_ATTR(young-r-replacement, 0x23),
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XGENE_PMU_EVENT_ATTR(young-nr-replacement, 0x24),
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XGENE_PMU_EVENT_ATTR(bloomfilter-clearing, 0x25),
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XGENE_PMU_EVENT_ATTR(generation-flip, 0x26),
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XGENE_PMU_EVENT_ATTR(vcc-droop-detected, 0x27),
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NULL,
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};
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static struct attribute *iob_fast_pmu_v3_events_attrs[] = {
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XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
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XGENE_PMU_EVENT_ATTR(pa-req-buf-alloc-all, 0x01),
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XGENE_PMU_EVENT_ATTR(pa-req-buf-alloc-rd, 0x02),
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XGENE_PMU_EVENT_ATTR(pa-req-buf-alloc-wr, 0x03),
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XGENE_PMU_EVENT_ATTR(pa-all-cp-req, 0x04),
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XGENE_PMU_EVENT_ATTR(pa-cp-blk-req, 0x05),
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XGENE_PMU_EVENT_ATTR(pa-cp-ptl-req, 0x06),
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XGENE_PMU_EVENT_ATTR(pa-cp-rd-req, 0x07),
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XGENE_PMU_EVENT_ATTR(pa-cp-wr-req, 0x08),
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XGENE_PMU_EVENT_ATTR(ba-all-req, 0x09),
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XGENE_PMU_EVENT_ATTR(ba-rd-req, 0x0a),
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XGENE_PMU_EVENT_ATTR(ba-wr-req, 0x0b),
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XGENE_PMU_EVENT_ATTR(pa-rd-shared-req-issued, 0x10),
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XGENE_PMU_EVENT_ATTR(pa-rd-exclusive-req-issued, 0x11),
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XGENE_PMU_EVENT_ATTR(pa-wr-invalidate-req-issued-stashable, 0x12),
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XGENE_PMU_EVENT_ATTR(pa-wr-invalidate-req-issued-nonstashable, 0x13),
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XGENE_PMU_EVENT_ATTR(pa-wr-back-req-issued-stashable, 0x14),
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XGENE_PMU_EVENT_ATTR(pa-wr-back-req-issued-nonstashable, 0x15),
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XGENE_PMU_EVENT_ATTR(pa-ptl-wr-req, 0x16),
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XGENE_PMU_EVENT_ATTR(pa-ptl-rd-req, 0x17),
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XGENE_PMU_EVENT_ATTR(pa-wr-back-clean-data, 0x18),
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XGENE_PMU_EVENT_ATTR(pa-wr-back-cancelled-on-SS, 0x1b),
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XGENE_PMU_EVENT_ATTR(pa-barrier-occurrence, 0x1c),
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XGENE_PMU_EVENT_ATTR(pa-barrier-cycles, 0x1d),
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XGENE_PMU_EVENT_ATTR(pa-total-cp-snoops, 0x20),
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XGENE_PMU_EVENT_ATTR(pa-rd-shared-snoop, 0x21),
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XGENE_PMU_EVENT_ATTR(pa-rd-shared-snoop-hit, 0x22),
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XGENE_PMU_EVENT_ATTR(pa-rd-exclusive-snoop, 0x23),
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XGENE_PMU_EVENT_ATTR(pa-rd-exclusive-snoop-hit, 0x24),
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XGENE_PMU_EVENT_ATTR(pa-rd-wr-invalid-snoop, 0x25),
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XGENE_PMU_EVENT_ATTR(pa-rd-wr-invalid-snoop-hit, 0x26),
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XGENE_PMU_EVENT_ATTR(pa-req-buffer-full, 0x28),
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XGENE_PMU_EVENT_ATTR(cswlf-outbound-req-fifo-full, 0x29),
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XGENE_PMU_EVENT_ATTR(cswlf-inbound-snoop-fifo-backpressure, 0x2a),
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XGENE_PMU_EVENT_ATTR(cswlf-outbound-lack-fifo-full, 0x2b),
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XGENE_PMU_EVENT_ATTR(cswlf-inbound-gack-fifo-backpressure, 0x2c),
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XGENE_PMU_EVENT_ATTR(cswlf-outbound-data-fifo-full, 0x2d),
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XGENE_PMU_EVENT_ATTR(cswlf-inbound-data-fifo-backpressure, 0x2e),
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XGENE_PMU_EVENT_ATTR(cswlf-inbound-req-backpressure, 0x2f),
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NULL,
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};
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static struct attribute *iob_slow_pmu_v3_events_attrs[] = {
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XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
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XGENE_PMU_EVENT_ATTR(pa-axi0-rd-req, 0x01),
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XGENE_PMU_EVENT_ATTR(pa-axi0-wr-req, 0x02),
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XGENE_PMU_EVENT_ATTR(pa-axi1-rd-req, 0x03),
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XGENE_PMU_EVENT_ATTR(pa-axi1-wr-req, 0x04),
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XGENE_PMU_EVENT_ATTR(ba-all-axi-req, 0x07),
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XGENE_PMU_EVENT_ATTR(ba-axi-rd-req, 0x08),
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XGENE_PMU_EVENT_ATTR(ba-axi-wr-req, 0x09),
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XGENE_PMU_EVENT_ATTR(ba-free-list-empty, 0x10),
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NULL,
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};
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static struct attribute *mcb_pmu_v3_events_attrs[] = {
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XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
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XGENE_PMU_EVENT_ATTR(req-receive, 0x01),
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XGENE_PMU_EVENT_ATTR(rd-req-recv, 0x02),
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XGENE_PMU_EVENT_ATTR(rd-req-recv-2, 0x03),
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XGENE_PMU_EVENT_ATTR(wr-req-recv, 0x04),
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XGENE_PMU_EVENT_ATTR(wr-req-recv-2, 0x05),
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XGENE_PMU_EVENT_ATTR(rd-req-sent-to-mcu, 0x06),
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XGENE_PMU_EVENT_ATTR(rd-req-sent-to-mcu-2, 0x07),
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XGENE_PMU_EVENT_ATTR(rd-req-sent-to-spec-mcu, 0x08),
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XGENE_PMU_EVENT_ATTR(rd-req-sent-to-spec-mcu-2, 0x09),
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XGENE_PMU_EVENT_ATTR(glbl-ack-recv-for-rd-sent-to-spec-mcu, 0x0a),
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XGENE_PMU_EVENT_ATTR(glbl-ack-go-recv-for-rd-sent-to-spec-mcu, 0x0b),
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XGENE_PMU_EVENT_ATTR(glbl-ack-nogo-recv-for-rd-sent-to-spec-mcu, 0x0c),
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XGENE_PMU_EVENT_ATTR(glbl-ack-go-recv-any-rd-req, 0x0d),
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XGENE_PMU_EVENT_ATTR(glbl-ack-go-recv-any-rd-req-2, 0x0e),
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XGENE_PMU_EVENT_ATTR(wr-req-sent-to-mcu, 0x0f),
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XGENE_PMU_EVENT_ATTR(gack-recv, 0x10),
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XGENE_PMU_EVENT_ATTR(rd-gack-recv, 0x11),
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XGENE_PMU_EVENT_ATTR(wr-gack-recv, 0x12),
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XGENE_PMU_EVENT_ATTR(cancel-rd-gack, 0x13),
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XGENE_PMU_EVENT_ATTR(cancel-wr-gack, 0x14),
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XGENE_PMU_EVENT_ATTR(mcb-csw-req-stall, 0x15),
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XGENE_PMU_EVENT_ATTR(mcu-req-intf-blocked, 0x16),
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XGENE_PMU_EVENT_ATTR(mcb-mcu-rd-intf-stall, 0x17),
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XGENE_PMU_EVENT_ATTR(csw-rd-intf-blocked, 0x18),
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XGENE_PMU_EVENT_ATTR(csw-local-ack-intf-blocked, 0x19),
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XGENE_PMU_EVENT_ATTR(mcu-req-table-full, 0x1a),
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XGENE_PMU_EVENT_ATTR(mcu-stat-table-full, 0x1b),
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XGENE_PMU_EVENT_ATTR(mcu-wr-table-full, 0x1c),
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XGENE_PMU_EVENT_ATTR(mcu-rdreceipt-resp, 0x1d),
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XGENE_PMU_EVENT_ATTR(mcu-wrcomplete-resp, 0x1e),
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XGENE_PMU_EVENT_ATTR(mcu-retryack-resp, 0x1f),
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XGENE_PMU_EVENT_ATTR(mcu-pcrdgrant-resp, 0x20),
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XGENE_PMU_EVENT_ATTR(mcu-req-from-lastload, 0x21),
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XGENE_PMU_EVENT_ATTR(mcu-req-from-bypass, 0x22),
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XGENE_PMU_EVENT_ATTR(volt-droop-detect, 0x23),
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NULL,
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};
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static struct attribute *mc_pmu_v3_events_attrs[] = {
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XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
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XGENE_PMU_EVENT_ATTR(act-sent, 0x01),
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XGENE_PMU_EVENT_ATTR(pre-sent, 0x02),
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XGENE_PMU_EVENT_ATTR(rd-sent, 0x03),
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XGENE_PMU_EVENT_ATTR(rda-sent, 0x04),
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XGENE_PMU_EVENT_ATTR(wr-sent, 0x05),
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XGENE_PMU_EVENT_ATTR(wra-sent, 0x06),
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XGENE_PMU_EVENT_ATTR(pd-entry-vld, 0x07),
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XGENE_PMU_EVENT_ATTR(sref-entry-vld, 0x08),
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XGENE_PMU_EVENT_ATTR(prea-sent, 0x09),
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XGENE_PMU_EVENT_ATTR(ref-sent, 0x0a),
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XGENE_PMU_EVENT_ATTR(rd-rda-sent, 0x0b),
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XGENE_PMU_EVENT_ATTR(wr-wra-sent, 0x0c),
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XGENE_PMU_EVENT_ATTR(raw-hazard, 0x0d),
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XGENE_PMU_EVENT_ATTR(war-hazard, 0x0e),
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XGENE_PMU_EVENT_ATTR(waw-hazard, 0x0f),
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XGENE_PMU_EVENT_ATTR(rar-hazard, 0x10),
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XGENE_PMU_EVENT_ATTR(raw-war-waw-hazard, 0x11),
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XGENE_PMU_EVENT_ATTR(hprd-lprd-wr-req-vld, 0x12),
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XGENE_PMU_EVENT_ATTR(lprd-req-vld, 0x13),
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XGENE_PMU_EVENT_ATTR(hprd-req-vld, 0x14),
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XGENE_PMU_EVENT_ATTR(hprd-lprd-req-vld, 0x15),
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XGENE_PMU_EVENT_ATTR(wr-req-vld, 0x16),
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XGENE_PMU_EVENT_ATTR(partial-wr-req-vld, 0x17),
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XGENE_PMU_EVENT_ATTR(rd-retry, 0x18),
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XGENE_PMU_EVENT_ATTR(wr-retry, 0x19),
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XGENE_PMU_EVENT_ATTR(retry-gnt, 0x1a),
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XGENE_PMU_EVENT_ATTR(rank-change, 0x1b),
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XGENE_PMU_EVENT_ATTR(dir-change, 0x1c),
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XGENE_PMU_EVENT_ATTR(rank-dir-change, 0x1d),
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XGENE_PMU_EVENT_ATTR(rank-active, 0x1e),
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XGENE_PMU_EVENT_ATTR(rank-idle, 0x1f),
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XGENE_PMU_EVENT_ATTR(rank-pd, 0x20),
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XGENE_PMU_EVENT_ATTR(rank-sref, 0x21),
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XGENE_PMU_EVENT_ATTR(queue-fill-gt-thresh, 0x22),
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XGENE_PMU_EVENT_ATTR(queue-rds-gt-thresh, 0x23),
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XGENE_PMU_EVENT_ATTR(queue-wrs-gt-thresh, 0x24),
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XGENE_PMU_EVENT_ATTR(phy-updt-complt, 0x25),
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XGENE_PMU_EVENT_ATTR(tz-fail, 0x26),
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||||
XGENE_PMU_EVENT_ATTR(dram-errc, 0x27),
|
||||
XGENE_PMU_EVENT_ATTR(dram-errd, 0x28),
|
||||
XGENE_PMU_EVENT_ATTR(rd-enq, 0x29),
|
||||
XGENE_PMU_EVENT_ATTR(wr-enq, 0x2a),
|
||||
XGENE_PMU_EVENT_ATTR(tmac-limit-reached, 0x2b),
|
||||
XGENE_PMU_EVENT_ATTR(tmaw-tracker-full, 0x2c),
|
||||
NULL,
|
||||
};
|
||||
|
||||
static const struct attribute_group l3c_pmu_v3_events_attr_group = {
|
||||
.name = "events",
|
||||
.attrs = l3c_pmu_v3_events_attrs,
|
||||
};
|
||||
|
||||
static const struct attribute_group iob_fast_pmu_v3_events_attr_group = {
|
||||
.name = "events",
|
||||
.attrs = iob_fast_pmu_v3_events_attrs,
|
||||
};
|
||||
|
||||
static const struct attribute_group iob_slow_pmu_v3_events_attr_group = {
|
||||
.name = "events",
|
||||
.attrs = iob_slow_pmu_v3_events_attrs,
|
||||
};
|
||||
|
||||
static const struct attribute_group mcb_pmu_v3_events_attr_group = {
|
||||
.name = "events",
|
||||
.attrs = mcb_pmu_v3_events_attrs,
|
||||
};
|
||||
|
||||
static const struct attribute_group mc_pmu_v3_events_attr_group = {
|
||||
.name = "events",
|
||||
.attrs = mc_pmu_v3_events_attrs,
|
||||
};
|
||||
|
||||
/*
|
||||
* sysfs cpumask attributes
|
||||
*/
|
||||
|
|
@ -352,7 +633,7 @@ static const struct attribute_group pmu_cpumask_attr_group = {
|
|||
};
|
||||
|
||||
/*
|
||||
* Per PMU device attribute groups
|
||||
* Per PMU device attribute groups of PMU v1 and v2
|
||||
*/
|
||||
static const struct attribute_group *l3c_pmu_attr_groups[] = {
|
||||
&l3c_pmu_format_attr_group,
|
||||
|
|
@ -382,6 +663,44 @@ static const struct attribute_group *mc_pmu_attr_groups[] = {
|
|||
NULL
|
||||
};
|
||||
|
||||
/*
|
||||
* Per PMU device attribute groups of PMU v3
|
||||
*/
|
||||
static const struct attribute_group *l3c_pmu_v3_attr_groups[] = {
|
||||
&l3c_pmu_v3_format_attr_group,
|
||||
&pmu_cpumask_attr_group,
|
||||
&l3c_pmu_v3_events_attr_group,
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct attribute_group *iob_fast_pmu_v3_attr_groups[] = {
|
||||
&iob_pmu_v3_format_attr_group,
|
||||
&pmu_cpumask_attr_group,
|
||||
&iob_fast_pmu_v3_events_attr_group,
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct attribute_group *iob_slow_pmu_v3_attr_groups[] = {
|
||||
&iob_slow_pmu_v3_format_attr_group,
|
||||
&pmu_cpumask_attr_group,
|
||||
&iob_slow_pmu_v3_events_attr_group,
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct attribute_group *mcb_pmu_v3_attr_groups[] = {
|
||||
&mcb_pmu_v3_format_attr_group,
|
||||
&pmu_cpumask_attr_group,
|
||||
&mcb_pmu_v3_events_attr_group,
|
||||
NULL
|
||||
};
|
||||
|
||||
static const struct attribute_group *mc_pmu_v3_attr_groups[] = {
|
||||
&mc_pmu_v3_format_attr_group,
|
||||
&pmu_cpumask_attr_group,
|
||||
&mc_pmu_v3_events_attr_group,
|
||||
NULL
|
||||
};
|
||||
|
||||
static int get_next_avail_cntr(struct xgene_pmu_dev *pmu_dev)
|
||||
{
|
||||
int cntr;
|
||||
|
|
@ -405,23 +724,66 @@ static inline void xgene_pmu_mask_int(struct xgene_pmu *xgene_pmu)
|
|||
writel(PCPPMU_INTENMASK, xgene_pmu->pcppmu_csr + PCPPMU_INTMASK_REG);
|
||||
}
|
||||
|
||||
static inline void xgene_pmu_v3_mask_int(struct xgene_pmu *xgene_pmu)
|
||||
{
|
||||
writel(PCPPMU_V3_INTENMASK, xgene_pmu->pcppmu_csr + PCPPMU_INTMASK_REG);
|
||||
}
|
||||
|
||||
static inline void xgene_pmu_unmask_int(struct xgene_pmu *xgene_pmu)
|
||||
{
|
||||
writel(PCPPMU_INTCLRMASK, xgene_pmu->pcppmu_csr + PCPPMU_INTMASK_REG);
|
||||
}
|
||||
|
||||
static inline void xgene_pmu_v3_unmask_int(struct xgene_pmu *xgene_pmu)
|
||||
{
|
||||
writel(PCPPMU_V3_INTCLRMASK,
|
||||
xgene_pmu->pcppmu_csr + PCPPMU_INTMASK_REG);
|
||||
}
|
||||
|
||||
static inline u64 xgene_pmu_read_counter32(struct xgene_pmu_dev *pmu_dev,
|
||||
int idx)
|
||||
{
|
||||
return readl(pmu_dev->inf->csr + PMU_PMEVCNTR0 + (4 * idx));
|
||||
}
|
||||
|
||||
static inline u64 xgene_pmu_read_counter64(struct xgene_pmu_dev *pmu_dev,
|
||||
int idx)
|
||||
{
|
||||
u32 lo, hi;
|
||||
|
||||
/*
|
||||
* v3 has 64-bit counter registers composed by 2 32-bit registers
|
||||
* This can be a problem if the counter increases and carries
|
||||
* out of bit [31] between 2 reads. The extra reads would help
|
||||
* to prevent this issue.
|
||||
*/
|
||||
do {
|
||||
hi = xgene_pmu_read_counter32(pmu_dev, 2 * idx + 1);
|
||||
lo = xgene_pmu_read_counter32(pmu_dev, 2 * idx);
|
||||
} while (hi != xgene_pmu_read_counter32(pmu_dev, 2 * idx + 1));
|
||||
|
||||
return (((u64)hi << 32) | lo);
|
||||
}
|
||||
|
||||
static inline void
|
||||
xgene_pmu_write_counter32(struct xgene_pmu_dev *pmu_dev, int idx, u64 val)
|
||||
{
|
||||
writel(val, pmu_dev->inf->csr + PMU_PMEVCNTR0 + (4 * idx));
|
||||
}
|
||||
|
||||
static inline void
|
||||
xgene_pmu_write_counter64(struct xgene_pmu_dev *pmu_dev, int idx, u64 val)
|
||||
{
|
||||
u32 cnt_lo, cnt_hi;
|
||||
|
||||
cnt_hi = upper_32_bits(val);
|
||||
cnt_lo = lower_32_bits(val);
|
||||
|
||||
/* v3 has 64-bit counter registers composed by 2 32-bit registers */
|
||||
xgene_pmu_write_counter32(pmu_dev, 2 * idx, cnt_lo);
|
||||
xgene_pmu_write_counter32(pmu_dev, 2 * idx + 1, cnt_hi);
|
||||
}
|
||||
|
||||
static inline void
|
||||
xgene_pmu_write_evttype(struct xgene_pmu_dev *pmu_dev, int idx, u32 val)
|
||||
{
|
||||
|
|
@ -434,12 +796,18 @@ xgene_pmu_write_agentmsk(struct xgene_pmu_dev *pmu_dev, u32 val)
|
|||
writel(val, pmu_dev->inf->csr + PMU_PMAMR0);
|
||||
}
|
||||
|
||||
static inline void
|
||||
xgene_pmu_v3_write_agentmsk(struct xgene_pmu_dev *pmu_dev, u32 val) { }
|
||||
|
||||
static inline void
|
||||
xgene_pmu_write_agent1msk(struct xgene_pmu_dev *pmu_dev, u32 val)
|
||||
{
|
||||
writel(val, pmu_dev->inf->csr + PMU_PMAMR1);
|
||||
}
|
||||
|
||||
static inline void
|
||||
xgene_pmu_v3_write_agent1msk(struct xgene_pmu_dev *pmu_dev, u32 val) { }
|
||||
|
||||
static inline void
|
||||
xgene_pmu_enable_counter(struct xgene_pmu_dev *pmu_dev, int idx)
|
||||
{
|
||||
|
|
@ -621,10 +989,11 @@ static void xgene_perf_event_set_period(struct perf_event *event)
|
|||
struct xgene_pmu *xgene_pmu = pmu_dev->parent;
|
||||
struct hw_perf_event *hw = &event->hw;
|
||||
/*
|
||||
* The X-Gene PMU counters have a period of 2^32. To account for the
|
||||
* possiblity of extreme interrupt latency we program for a period of
|
||||
* half that. Hopefully we can handle the interrupt before another 2^31
|
||||
* For 32 bit counter, it has a period of 2^32. To account for the
|
||||
* possibility of extreme interrupt latency we program for a period of
|
||||
* half that. Hopefully, we can handle the interrupt before another 2^31
|
||||
* events occur and the counter overtakes its previous value.
|
||||
* For 64 bit counter, we don't expect it overflow.
|
||||
*/
|
||||
u64 val = 1ULL << 31;
|
||||
|
||||
|
|
@ -741,7 +1110,10 @@ static int xgene_init_perf(struct xgene_pmu_dev *pmu_dev, char *name)
|
|||
{
|
||||
struct xgene_pmu *xgene_pmu;
|
||||
|
||||
pmu_dev->max_period = PMU_CNT_MAX_PERIOD - 1;
|
||||
if (pmu_dev->parent->version == PCP_PMU_V3)
|
||||
pmu_dev->max_period = PMU_V3_CNT_MAX_PERIOD;
|
||||
else
|
||||
pmu_dev->max_period = PMU_CNT_MAX_PERIOD;
|
||||
/* First version PMU supports only single event counter */
|
||||
xgene_pmu = pmu_dev->parent;
|
||||
if (xgene_pmu->version == PCP_PMU_V1)
|
||||
|
|
@ -786,20 +1158,38 @@ xgene_pmu_dev_add(struct xgene_pmu *xgene_pmu, struct xgene_pmu_dev_ctx *ctx)
|
|||
|
||||
switch (pmu->inf->type) {
|
||||
case PMU_TYPE_L3C:
|
||||
pmu->attr_groups = l3c_pmu_attr_groups;
|
||||
if (!(xgene_pmu->l3c_active_mask & pmu->inf->enable_mask))
|
||||
goto dev_err;
|
||||
if (xgene_pmu->version == PCP_PMU_V3)
|
||||
pmu->attr_groups = l3c_pmu_v3_attr_groups;
|
||||
else
|
||||
pmu->attr_groups = l3c_pmu_attr_groups;
|
||||
break;
|
||||
case PMU_TYPE_IOB:
|
||||
pmu->attr_groups = iob_pmu_attr_groups;
|
||||
if (xgene_pmu->version == PCP_PMU_V3)
|
||||
pmu->attr_groups = iob_fast_pmu_v3_attr_groups;
|
||||
else
|
||||
pmu->attr_groups = iob_pmu_attr_groups;
|
||||
break;
|
||||
case PMU_TYPE_IOB_SLOW:
|
||||
if (xgene_pmu->version == PCP_PMU_V3)
|
||||
pmu->attr_groups = iob_slow_pmu_v3_attr_groups;
|
||||
break;
|
||||
case PMU_TYPE_MCB:
|
||||
if (!(xgene_pmu->mcb_active_mask & pmu->inf->enable_mask))
|
||||
goto dev_err;
|
||||
pmu->attr_groups = mcb_pmu_attr_groups;
|
||||
if (xgene_pmu->version == PCP_PMU_V3)
|
||||
pmu->attr_groups = mcb_pmu_v3_attr_groups;
|
||||
else
|
||||
pmu->attr_groups = mcb_pmu_attr_groups;
|
||||
break;
|
||||
case PMU_TYPE_MC:
|
||||
if (!(xgene_pmu->mc_active_mask & pmu->inf->enable_mask))
|
||||
goto dev_err;
|
||||
pmu->attr_groups = mc_pmu_attr_groups;
|
||||
if (xgene_pmu->version == PCP_PMU_V3)
|
||||
pmu->attr_groups = mc_pmu_v3_attr_groups;
|
||||
else
|
||||
pmu->attr_groups = mc_pmu_attr_groups;
|
||||
break;
|
||||
default:
|
||||
return -EINVAL;
|
||||
|
|
@ -823,18 +1213,27 @@ dev_err:
|
|||
static void _xgene_pmu_isr(int irq, struct xgene_pmu_dev *pmu_dev)
|
||||
{
|
||||
struct xgene_pmu *xgene_pmu = pmu_dev->parent;
|
||||
void __iomem *csr = pmu_dev->inf->csr;
|
||||
u32 pmovsr;
|
||||
int idx;
|
||||
|
||||
pmovsr = readl(pmu_dev->inf->csr + PMU_PMOVSR) & PMU_OVERFLOW_MASK;
|
||||
xgene_pmu->ops->stop_counters(pmu_dev);
|
||||
|
||||
if (xgene_pmu->version == PCP_PMU_V3)
|
||||
pmovsr = readl(csr + PMU_PMOVSSET) & PMU_OVERFLOW_MASK;
|
||||
else
|
||||
pmovsr = readl(csr + PMU_PMOVSR) & PMU_OVERFLOW_MASK;
|
||||
|
||||
if (!pmovsr)
|
||||
return;
|
||||
goto out;
|
||||
|
||||
/* Clear interrupt flag */
|
||||
if (xgene_pmu->version == PCP_PMU_V1)
|
||||
writel(0x0, pmu_dev->inf->csr + PMU_PMOVSR);
|
||||
writel(0x0, csr + PMU_PMOVSR);
|
||||
else if (xgene_pmu->version == PCP_PMU_V2)
|
||||
writel(pmovsr, csr + PMU_PMOVSR);
|
||||
else
|
||||
writel(pmovsr, pmu_dev->inf->csr + PMU_PMOVSR);
|
||||
writel(pmovsr, csr + PMU_PMOVSCLR);
|
||||
|
||||
for (idx = 0; idx < PMU_MAX_COUNTERS; idx++) {
|
||||
struct perf_event *event = pmu_dev->pmu_counter_event[idx];
|
||||
|
|
@ -846,10 +1245,14 @@ static void _xgene_pmu_isr(int irq, struct xgene_pmu_dev *pmu_dev)
|
|||
xgene_perf_event_update(event);
|
||||
xgene_perf_event_set_period(event);
|
||||
}
|
||||
|
||||
out:
|
||||
xgene_pmu->ops->start_counters(pmu_dev);
|
||||
}
|
||||
|
||||
static irqreturn_t xgene_pmu_isr(int irq, void *dev_id)
|
||||
{
|
||||
u32 intr_mcu, intr_mcb, intr_l3c, intr_iob;
|
||||
struct xgene_pmu_dev_ctx *ctx;
|
||||
struct xgene_pmu *xgene_pmu = dev_id;
|
||||
unsigned long flags;
|
||||
|
|
@ -859,22 +1262,33 @@ static irqreturn_t xgene_pmu_isr(int irq, void *dev_id)
|
|||
|
||||
/* Get Interrupt PMU source */
|
||||
val = readl(xgene_pmu->pcppmu_csr + PCPPMU_INTSTATUS_REG);
|
||||
if (val & PCPPMU_INT_MCU) {
|
||||
if (xgene_pmu->version == PCP_PMU_V3) {
|
||||
intr_mcu = PCPPMU_V3_INT_MCU;
|
||||
intr_mcb = PCPPMU_V3_INT_MCB;
|
||||
intr_l3c = PCPPMU_V3_INT_L3C;
|
||||
intr_iob = PCPPMU_V3_INT_IOB;
|
||||
} else {
|
||||
intr_mcu = PCPPMU_INT_MCU;
|
||||
intr_mcb = PCPPMU_INT_MCB;
|
||||
intr_l3c = PCPPMU_INT_L3C;
|
||||
intr_iob = PCPPMU_INT_IOB;
|
||||
}
|
||||
if (val & intr_mcu) {
|
||||
list_for_each_entry(ctx, &xgene_pmu->mcpmus, next) {
|
||||
_xgene_pmu_isr(irq, ctx->pmu_dev);
|
||||
}
|
||||
}
|
||||
if (val & PCPPMU_INT_MCB) {
|
||||
if (val & intr_mcb) {
|
||||
list_for_each_entry(ctx, &xgene_pmu->mcbpmus, next) {
|
||||
_xgene_pmu_isr(irq, ctx->pmu_dev);
|
||||
}
|
||||
}
|
||||
if (val & PCPPMU_INT_L3C) {
|
||||
if (val & intr_l3c) {
|
||||
list_for_each_entry(ctx, &xgene_pmu->l3cpmus, next) {
|
||||
_xgene_pmu_isr(irq, ctx->pmu_dev);
|
||||
}
|
||||
}
|
||||
if (val & PCPPMU_INT_IOB) {
|
||||
if (val & intr_iob) {
|
||||
list_for_each_entry(ctx, &xgene_pmu->iobpmus, next) {
|
||||
_xgene_pmu_isr(irq, ctx->pmu_dev);
|
||||
}
|
||||
|
|
@ -885,8 +1299,8 @@ static irqreturn_t xgene_pmu_isr(int irq, void *dev_id)
|
|||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int acpi_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
|
||||
struct platform_device *pdev)
|
||||
static int acpi_pmu_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu,
|
||||
struct platform_device *pdev)
|
||||
{
|
||||
void __iomem *csw_csr, *mcba_csr, *mcbb_csr;
|
||||
struct resource *res;
|
||||
|
|
@ -913,6 +1327,8 @@ static int acpi_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
|
|||
return PTR_ERR(mcbb_csr);
|
||||
}
|
||||
|
||||
xgene_pmu->l3c_active_mask = 0x1;
|
||||
|
||||
reg = readl(csw_csr + CSW_CSWCR);
|
||||
if (reg & CSW_CSWCR_DUALMCB_MASK) {
|
||||
/* Dual MCB active */
|
||||
|
|
@ -933,8 +1349,56 @@ static int acpi_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int fdt_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
|
||||
struct platform_device *pdev)
|
||||
static int acpi_pmu_v3_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu,
|
||||
struct platform_device *pdev)
|
||||
{
|
||||
void __iomem *csw_csr;
|
||||
struct resource *res;
|
||||
unsigned int reg;
|
||||
u32 mcb0routing;
|
||||
u32 mcb1routing;
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
|
||||
csw_csr = devm_ioremap_resource(&pdev->dev, res);
|
||||
if (IS_ERR(csw_csr)) {
|
||||
dev_err(&pdev->dev, "ioremap failed for CSW CSR resource\n");
|
||||
return PTR_ERR(csw_csr);
|
||||
}
|
||||
|
||||
reg = readl(csw_csr + CSW_CSWCR);
|
||||
mcb0routing = CSW_CSWCR_MCB0_ROUTING(reg);
|
||||
mcb1routing = CSW_CSWCR_MCB1_ROUTING(reg);
|
||||
if (reg & CSW_CSWCR_DUALMCB_MASK) {
|
||||
/* Dual MCB active */
|
||||
xgene_pmu->mcb_active_mask = 0x3;
|
||||
/* Probe all active L3C(s), maximum is 8 */
|
||||
xgene_pmu->l3c_active_mask = 0xFF;
|
||||
/* Probe all active MC(s), maximum is 8 */
|
||||
if ((mcb0routing == 0x2) && (mcb1routing == 0x2))
|
||||
xgene_pmu->mc_active_mask = 0xFF;
|
||||
else if ((mcb0routing == 0x1) && (mcb1routing == 0x1))
|
||||
xgene_pmu->mc_active_mask = 0x33;
|
||||
else
|
||||
xgene_pmu->mc_active_mask = 0x11;
|
||||
} else {
|
||||
/* Single MCB active */
|
||||
xgene_pmu->mcb_active_mask = 0x1;
|
||||
/* Probe all active L3C(s), maximum is 4 */
|
||||
xgene_pmu->l3c_active_mask = 0x0F;
|
||||
/* Probe all active MC(s), maximum is 4 */
|
||||
if (mcb0routing == 0x2)
|
||||
xgene_pmu->mc_active_mask = 0x0F;
|
||||
else if (mcb0routing == 0x1)
|
||||
xgene_pmu->mc_active_mask = 0x03;
|
||||
else
|
||||
xgene_pmu->mc_active_mask = 0x01;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int fdt_pmu_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu,
|
||||
struct platform_device *pdev)
|
||||
{
|
||||
struct regmap *csw_map, *mcba_map, *mcbb_map;
|
||||
struct device_node *np = pdev->dev.of_node;
|
||||
|
|
@ -958,6 +1422,7 @@ static int fdt_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
|
|||
return PTR_ERR(mcbb_map);
|
||||
}
|
||||
|
||||
xgene_pmu->l3c_active_mask = 0x1;
|
||||
if (regmap_read(csw_map, CSW_CSWCR, ®))
|
||||
return -EINVAL;
|
||||
|
||||
|
|
@ -982,12 +1447,18 @@ static int fdt_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
|
|||
return 0;
|
||||
}
|
||||
|
||||
static int xgene_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
|
||||
struct platform_device *pdev)
|
||||
static int xgene_pmu_probe_active_mcb_mcu_l3c(struct xgene_pmu *xgene_pmu,
|
||||
struct platform_device *pdev)
|
||||
{
|
||||
if (has_acpi_companion(&pdev->dev))
|
||||
return acpi_pmu_probe_active_mcb_mcu(xgene_pmu, pdev);
|
||||
return fdt_pmu_probe_active_mcb_mcu(xgene_pmu, pdev);
|
||||
if (has_acpi_companion(&pdev->dev)) {
|
||||
if (xgene_pmu->version == PCP_PMU_V3)
|
||||
return acpi_pmu_v3_probe_active_mcb_mcu_l3c(xgene_pmu,
|
||||
pdev);
|
||||
else
|
||||
return acpi_pmu_probe_active_mcb_mcu_l3c(xgene_pmu,
|
||||
pdev);
|
||||
}
|
||||
return fdt_pmu_probe_active_mcb_mcu_l3c(xgene_pmu, pdev);
|
||||
}
|
||||
|
||||
static char *xgene_pmu_dev_name(struct device *dev, u32 type, int id)
|
||||
|
|
@ -997,6 +1468,8 @@ static char *xgene_pmu_dev_name(struct device *dev, u32 type, int id)
|
|||
return devm_kasprintf(dev, GFP_KERNEL, "l3c%d", id);
|
||||
case PMU_TYPE_IOB:
|
||||
return devm_kasprintf(dev, GFP_KERNEL, "iob%d", id);
|
||||
case PMU_TYPE_IOB_SLOW:
|
||||
return devm_kasprintf(dev, GFP_KERNEL, "iob-slow%d", id);
|
||||
case PMU_TYPE_MCB:
|
||||
return devm_kasprintf(dev, GFP_KERNEL, "mcb%d", id);
|
||||
case PMU_TYPE_MC:
|
||||
|
|
@ -1080,6 +1553,11 @@ static const struct acpi_device_id xgene_pmu_acpi_type_match[] = {
|
|||
{"APMC0D5E", PMU_TYPE_IOB},
|
||||
{"APMC0D5F", PMU_TYPE_MCB},
|
||||
{"APMC0D60", PMU_TYPE_MC},
|
||||
{"APMC0D84", PMU_TYPE_L3C},
|
||||
{"APMC0D85", PMU_TYPE_IOB},
|
||||
{"APMC0D86", PMU_TYPE_IOB_SLOW},
|
||||
{"APMC0D87", PMU_TYPE_MCB},
|
||||
{"APMC0D88", PMU_TYPE_MC},
|
||||
{},
|
||||
};
|
||||
|
||||
|
|
@ -1134,6 +1612,9 @@ static acpi_status acpi_pmu_dev_add(acpi_handle handle, u32 level,
|
|||
case PMU_TYPE_IOB:
|
||||
list_add(&ctx->next, &xgene_pmu->iobpmus);
|
||||
break;
|
||||
case PMU_TYPE_IOB_SLOW:
|
||||
list_add(&ctx->next, &xgene_pmu->iobpmus);
|
||||
break;
|
||||
case PMU_TYPE_MCB:
|
||||
list_add(&ctx->next, &xgene_pmu->mcbpmus);
|
||||
break;
|
||||
|
|
@ -1255,6 +1736,9 @@ static int fdt_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu,
|
|||
case PMU_TYPE_IOB:
|
||||
list_add(&ctx->next, &xgene_pmu->iobpmus);
|
||||
break;
|
||||
case PMU_TYPE_IOB_SLOW:
|
||||
list_add(&ctx->next, &xgene_pmu->iobpmus);
|
||||
break;
|
||||
case PMU_TYPE_MCB:
|
||||
list_add(&ctx->next, &xgene_pmu->mcbpmus);
|
||||
break;
|
||||
|
|
@ -1300,6 +1784,23 @@ static const struct xgene_pmu_ops xgene_pmu_ops = {
|
|||
.stop_counters = xgene_pmu_stop_counters,
|
||||
};
|
||||
|
||||
static const struct xgene_pmu_ops xgene_pmu_v3_ops = {
|
||||
.mask_int = xgene_pmu_v3_mask_int,
|
||||
.unmask_int = xgene_pmu_v3_unmask_int,
|
||||
.read_counter = xgene_pmu_read_counter64,
|
||||
.write_counter = xgene_pmu_write_counter64,
|
||||
.write_evttype = xgene_pmu_write_evttype,
|
||||
.write_agentmsk = xgene_pmu_v3_write_agentmsk,
|
||||
.write_agent1msk = xgene_pmu_v3_write_agent1msk,
|
||||
.enable_counter = xgene_pmu_enable_counter,
|
||||
.disable_counter = xgene_pmu_disable_counter,
|
||||
.enable_counter_int = xgene_pmu_enable_counter_int,
|
||||
.disable_counter_int = xgene_pmu_disable_counter_int,
|
||||
.reset_counters = xgene_pmu_reset_counters,
|
||||
.start_counters = xgene_pmu_start_counters,
|
||||
.stop_counters = xgene_pmu_stop_counters,
|
||||
};
|
||||
|
||||
static const struct of_device_id xgene_pmu_of_match[] = {
|
||||
{ .compatible = "apm,xgene-pmu", .data = &xgene_pmu_data },
|
||||
{ .compatible = "apm,xgene-pmu-v2", .data = &xgene_pmu_v2_data },
|
||||
|
|
@ -1310,6 +1811,7 @@ MODULE_DEVICE_TABLE(of, xgene_pmu_of_match);
|
|||
static const struct acpi_device_id xgene_pmu_acpi_match[] = {
|
||||
{"APMC0D5B", PCP_PMU_V1},
|
||||
{"APMC0D5C", PCP_PMU_V2},
|
||||
{"APMC0D83", PCP_PMU_V3},
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, xgene_pmu_acpi_match);
|
||||
|
|
@ -1349,7 +1851,10 @@ static int xgene_pmu_probe(struct platform_device *pdev)
|
|||
if (version < 0)
|
||||
return -ENODEV;
|
||||
|
||||
xgene_pmu->ops = &xgene_pmu_ops;
|
||||
if (version == PCP_PMU_V3)
|
||||
xgene_pmu->ops = &xgene_pmu_v3_ops;
|
||||
else
|
||||
xgene_pmu->ops = &xgene_pmu_ops;
|
||||
|
||||
INIT_LIST_HEAD(&xgene_pmu->l3cpmus);
|
||||
INIT_LIST_HEAD(&xgene_pmu->iobpmus);
|
||||
|
|
@ -1384,7 +1889,7 @@ static int xgene_pmu_probe(struct platform_device *pdev)
|
|||
raw_spin_lock_init(&xgene_pmu->lock);
|
||||
|
||||
/* Check for active MCBs and MCUs */
|
||||
rc = xgene_pmu_probe_active_mcb_mcu(xgene_pmu, pdev);
|
||||
rc = xgene_pmu_probe_active_mcb_mcu_l3c(xgene_pmu, pdev);
|
||||
if (rc) {
|
||||
dev_warn(&pdev->dev, "Unknown MCB/MCU active status\n");
|
||||
xgene_pmu->mcb_active_mask = 0x1;
|
||||
|
|
|
|||
Loading…
Reference in New Issue