[PATCH v2 3/3] perf: xgene: Add support for SoC PMU version 3

From: Hoan Tran
Date: Mon Apr 03 2017 - 12:48:59 EST

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

Signed-off-by: Hoan Tran <hotran@xxxxxxx>
---
drivers/perf/xgene_pmu.c | 572 +++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 524 insertions(+), 48 deletions(-)

diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index f34fc78..a72814d 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -37,6 +37,8 @@

#define CSW_CSWCR 0x0000
#define CSW_CSWCR_DUALMCB_MASK BIT(0)
+#define CSW_CSWCR_MCB0_ROUTING(x) (((x) & 0x0C) >> 2)
+#define CSW_CSWCR_MCB1_ROUTING(x) (((x) & 0x30) >> 4)
#define MCBADDRMR 0x0000
#define MCBADDRMR_DUALMCU_MODE_MASK BIT(2)

@@ -50,8 +52,17 @@
#define PCPPMU_INT_L3C BIT(2)
#define PCPPMU_INT_IOB BIT(3)

+#define PCPPMU_V3_INTMASK 0x00FF33FF
+#define PCPPMU_V3_INTENMASK 0xFFFFFFFF
+#define PCPPMU_V3_INTCLRMASK 0xFF00CC00
+#define PCPPMU_V3_INT_MCU 0x000000FF
+#define PCPPMU_V3_INT_MCB 0x00000300
+#define PCPPMU_V3_INT_L3C 0x00FF0000
+#define PCPPMU_V3_INT_IOB 0x00003000
+
#define PMU_MAX_COUNTERS 4
-#define PMU_CNT_MAX_PERIOD 0x100000000ULL
+#define PMU_CNT_MAX_PERIOD 0xFFFFFFFFULL
+#define PMU_V3_CNT_MAX_PERIOD 0xFFFFFFFFFFFFFFFFULL
#define PMU_OVERFLOW_MASK 0xF
#define PMU_PMCR_E BIT(0)
#define PMU_PMCR_P BIT(1)
@@ -73,6 +84,10 @@
#define PMU_PMOVSR 0xC80
#define PMU_PMCR 0xE04

+/* PMU registers for V3 */
+#define PMU_PMOVSCLR 0xC80
+#define PMU_PMOVSSET 0xCC0
+
#define to_pmu_dev(p) container_of(p, struct xgene_pmu_dev, pmu)
#define GET_CNTR(ev) (ev->hw.idx)
#define GET_EVENTID(ev) (ev->hw.config & 0xFFULL)
@@ -119,6 +134,7 @@ struct xgene_pmu {
void __iomem *pcppmu_csr;
u32 mcb_active_mask;
u32 mc_active_mask;
+ u32 l3c_active_mask;
cpumask_t cpu;
raw_spinlock_t lock;
const struct xgene_pmu_ops *ops;
@@ -143,11 +159,13 @@ struct xgene_pmu_data {
enum xgene_pmu_version {
PCP_PMU_V1 = 1,
PCP_PMU_V2,
+ PCP_PMU_V3,
};

enum xgene_pmu_dev_type {
PMU_TYPE_L3C = 0,
PMU_TYPE_IOB,
+ PMU_TYPE_IOB_SLOW,
PMU_TYPE_MCB,
PMU_TYPE_MC,
};
@@ -213,6 +231,56 @@ static ssize_t xgene_pmu_format_show(struct device *dev,
.attrs = mc_pmu_format_attrs,
};

+static struct attribute *l3c_pmu_v3_format_attrs[] = {
+ XGENE_PMU_FORMAT_ATTR(l3c_eventid, "config:0-39"),
+ NULL,
+};
+
+static struct attribute *iob_pmu_v3_format_attrs[] = {
+ XGENE_PMU_FORMAT_ATTR(iob_eventid, "config:0-47"),
+ NULL,
+};
+
+static struct attribute *iob_slow_pmu_v3_format_attrs[] = {
+ XGENE_PMU_FORMAT_ATTR(iob_slow_eventid, "config:0-16"),
+ NULL,
+};
+
+static struct attribute *mcb_pmu_v3_format_attrs[] = {
+ XGENE_PMU_FORMAT_ATTR(mcb_eventid, "config:0-35"),
+ NULL,
+};
+
+static struct attribute *mc_pmu_v3_format_attrs[] = {
+ XGENE_PMU_FORMAT_ATTR(mc_eventid, "config:0-44"),
+ NULL,
+};
+
+static const struct attribute_group l3c_pmu_v3_format_attr_group = {
+ .name = "format",
+ .attrs = l3c_pmu_v3_format_attrs,
+};
+
+static const struct attribute_group iob_pmu_v3_format_attr_group = {
+ .name = "format",
+ .attrs = iob_pmu_v3_format_attrs,
+};
+
+static const struct attribute_group iob_slow_pmu_v3_format_attr_group = {
+ .name = "format",
+ .attrs = iob_slow_pmu_v3_format_attrs,
+};
+
+static const struct attribute_group mcb_pmu_v3_format_attr_group = {
+ .name = "format",
+ .attrs = mcb_pmu_v3_format_attrs,
+};
+
+static const struct attribute_group mc_pmu_v3_format_attr_group = {
+ .name = "format",
+ .attrs = mc_pmu_v3_format_attrs,
+};
+
/*
* sysfs event attributes
*/
@@ -329,6 +397,219 @@ static ssize_t xgene_pmu_event_show(struct device *dev,
.attrs = mc_pmu_events_attrs,
};

+static struct attribute *l3c_pmu_v3_events_attrs[] = {
+ XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
+ XGENE_PMU_EVENT_ATTR(read-hit, 0x01),
+ XGENE_PMU_EVENT_ATTR(read-miss, 0x02),
+ XGENE_PMU_EVENT_ATTR(index-flush-eviction, 0x03),
+ XGENE_PMU_EVENT_ATTR(write-caused-replacement, 0x04),
+ XGENE_PMU_EVENT_ATTR(write-not-caused-replacement, 0x05),
+ XGENE_PMU_EVENT_ATTR(clean-eviction, 0x06),
+ XGENE_PMU_EVENT_ATTR(dirty-eviction, 0x07),
+ XGENE_PMU_EVENT_ATTR(reads, 0x08),
+ XGENE_PMU_EVENT_ATTR(writes, 0x09),
+ XGENE_PMU_EVENT_ATTR(requests, 0x0a),
+ XGENE_PMU_EVENT_ATTR(tq-bank-conflict-issue-stall, 0x0b),
+ XGENE_PMU_EVENT_ATTR(tq-full, 0x0c),
+ XGENE_PMU_EVENT_ATTR(ackq-full, 0x0d),
+ XGENE_PMU_EVENT_ATTR(wdb-full, 0x0e),
+ XGENE_PMU_EVENT_ATTR(odb-full, 0x10),
+ XGENE_PMU_EVENT_ATTR(wbq-full, 0x11),
+ XGENE_PMU_EVENT_ATTR(input-req-async-fifo-stall, 0x12),
+ XGENE_PMU_EVENT_ATTR(output-req-async-fifo-stall, 0x13),
+ XGENE_PMU_EVENT_ATTR(output-data-async-fifo-stall, 0x14),
+ XGENE_PMU_EVENT_ATTR(total-insertions, 0x15),
+ XGENE_PMU_EVENT_ATTR(sip-insertions-r-set, 0x16),
+ XGENE_PMU_EVENT_ATTR(sip-insertions-r-clear, 0x17),
+ XGENE_PMU_EVENT_ATTR(dip-insertions-r-set, 0x18),
+ XGENE_PMU_EVENT_ATTR(dip-insertions-r-clear, 0x19),
+ XGENE_PMU_EVENT_ATTR(dip-insertions-force-r-set, 0x1a),
+ XGENE_PMU_EVENT_ATTR(egressions, 0x1b),
+ XGENE_PMU_EVENT_ATTR(replacements, 0x1c),
+ XGENE_PMU_EVENT_ATTR(old-replacements, 0x1d),
+ XGENE_PMU_EVENT_ATTR(young-replacements, 0x1e),
+ XGENE_PMU_EVENT_ATTR(r-set-replacements, 0x1f),
+ XGENE_PMU_EVENT_ATTR(r-clear-replacements, 0x20),
+ XGENE_PMU_EVENT_ATTR(old-r-replacements, 0x21),
+ XGENE_PMU_EVENT_ATTR(old-nr-replacements, 0x22),
+ XGENE_PMU_EVENT_ATTR(young-r-replacements, 0x23),
+ XGENE_PMU_EVENT_ATTR(young-nr-replacements, 0x24),
+ XGENE_PMU_EVENT_ATTR(bloomfilter-clearings, 0x25),
+ XGENE_PMU_EVENT_ATTR(generation-flips, 0x26),
+ XGENE_PMU_EVENT_ATTR(vcc-droop-detected, 0x27),
+ NULL,
+};
+
+static struct attribute *iob_fast_pmu_v3_events_attrs[] = {
+ XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
+ XGENE_PMU_EVENT_ATTR(PA-req-buf-alloc-all, 0x01),
+ XGENE_PMU_EVENT_ATTR(PA-req-buf-alloc-rd, 0x02),
+ XGENE_PMU_EVENT_ATTR(PA-req-buf-alloc-wr, 0x03),
+ XGENE_PMU_EVENT_ATTR(PA-all-CP-req, 0x04),
+ XGENE_PMU_EVENT_ATTR(PA-CP-blk-req, 0x05),
+ XGENE_PMU_EVENT_ATTR(PA-CP-ptl-req, 0x06),
+ XGENE_PMU_EVENT_ATTR(PA-CP-rd-req, 0x07),
+ XGENE_PMU_EVENT_ATTR(PA-CP-wr-req, 0x08),
+ XGENE_PMU_EVENT_ATTR(BA-all-req, 0x09),
+ XGENE_PMU_EVENT_ATTR(BA-rd-req, 0x0a),
+ XGENE_PMU_EVENT_ATTR(BA-wr-req, 0x0b),
+ XGENE_PMU_EVENT_ATTR(PA-rd-shared-req-issued, 0x10),
+ XGENE_PMU_EVENT_ATTR(PA-rd-exclusive-req-issued, 0x11),
+ XGENE_PMU_EVENT_ATTR(PA-wr-invalidate-req-issued-stashable, 0x12),
+ XGENE_PMU_EVENT_ATTR(PA-wr-invalidate-req-issued-nonstashable, 0x13),
+ XGENE_PMU_EVENT_ATTR(PA-wr-back-req-issued-stashable, 0x14),
+ XGENE_PMU_EVENT_ATTR(PA-wr-back-req-issued-nonstashable, 0x15),
+ XGENE_PMU_EVENT_ATTR(PA-ptl-wr-req, 0x16),
+ XGENE_PMU_EVENT_ATTR(PA-ptl-rd-req, 0x17),
+ XGENE_PMU_EVENT_ATTR(PA-wr-back-clean-data, 0x18),
+ XGENE_PMU_EVENT_ATTR(PA-wr-back-cancelled-on-SS, 0x1b),
+ XGENE_PMU_EVENT_ATTR(PA-barrier-occurrence, 0x1c),
+ XGENE_PMU_EVENT_ATTR(PA-barrier-cycles, 0x1d),
+ XGENE_PMU_EVENT_ATTR(PA-total-CP-snoops, 0x20),
+ XGENE_PMU_EVENT_ATTR(PA-rd-shared-snoop, 0x21),
+ XGENE_PMU_EVENT_ATTR(PA-rd-shared-snoop-hit, 0x22),
+ XGENE_PMU_EVENT_ATTR(PA-rd-exclusive-snoop, 0x23),
+ XGENE_PMU_EVENT_ATTR(PA-rd-exclusive-snoop-hit, 0x24),
+ XGENE_PMU_EVENT_ATTR(PA-rd-wr-invalid-snoop, 0x25),
+ XGENE_PMU_EVENT_ATTR(PA-rd-wr-invalid-snoop-hit, 0x26),
+ XGENE_PMU_EVENT_ATTR(PA-req-buffer-full, 0x28),
+ XGENE_PMU_EVENT_ATTR(Cswlf-outbound-req-fifo-full, 0x29),
+ XGENE_PMU_EVENT_ATTR(Cswlf-inbound-snoop-fifo-backpressure, 0x2a),
+ XGENE_PMU_EVENT_ATTR(Cswlf-outbound-lack-fifo-full, 0x2b),
+ XGENE_PMU_EVENT_ATTR(Cswlf-inbound-gack-fifo-backpressure, 0x2c),
+ XGENE_PMU_EVENT_ATTR(Cswlf-outbound-data-fifo-full, 0x2d),
+ XGENE_PMU_EVENT_ATTR(Cswlf-inbound-data-fifo-backpressure, 0x2e),
+ XGENE_PMU_EVENT_ATTR(Cswlf-inbound-req-backpressure, 0x2f),
+ NULL,
+};
+
+static struct attribute *iob_slow_pmu_v3_events_attrs[] = {
+ XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
+ XGENE_PMU_EVENT_ATTR(PA-AXI0-rd-req, 0x01),
+ XGENE_PMU_EVENT_ATTR(PA-AXI0-wr-req, 0x02),
+ XGENE_PMU_EVENT_ATTR(PA-AXI1-rd-req, 0x03),
+ XGENE_PMU_EVENT_ATTR(PA-AXI1-wr-req, 0x04),
+ XGENE_PMU_EVENT_ATTR(BA-all-AXI-req, 0x07),
+ XGENE_PMU_EVENT_ATTR(BA-AXI-rd-req, 0x08),
+ XGENE_PMU_EVENT_ATTR(BA-AXI-wr-req, 0x09),
+ XGENE_PMU_EVENT_ATTR(BA-free-list-empty, 0x10),
+ NULL,
+};
+
+static struct attribute *mcb_pmu_v3_events_attrs[] = {
+ XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
+ XGENE_PMU_EVENT_ATTR(req-receive, 0x01),
+ XGENE_PMU_EVENT_ATTR(rd-req-recv, 0x02),
+ XGENE_PMU_EVENT_ATTR(rd-req-recv-2, 0x03),
+ XGENE_PMU_EVENT_ATTR(wr-req-recv, 0x04),
+ XGENE_PMU_EVENT_ATTR(wr-req-recv-2, 0x05),
+ XGENE_PMU_EVENT_ATTR(rd-req-sent-to-mcu, 0x06),
+ XGENE_PMU_EVENT_ATTR(rd-req-sent-to-mcu-2, 0x07),
+ XGENE_PMU_EVENT_ATTR(rd-req-sent-to-spec-mcu, 0x08),
+ XGENE_PMU_EVENT_ATTR(rd-req-sent-to-spec-mcu-2, 0x09),
+ XGENE_PMU_EVENT_ATTR(glbl-ack-recv-for-rd-sent-to-spec-mcu, 0x0a),
+ XGENE_PMU_EVENT_ATTR(glbl-ack-go-recv-for-rd-sent-to-spec-mcu, 0x0b),
+ XGENE_PMU_EVENT_ATTR(glbl-ack-nogo-recv-for-rd-sent-to-spec-mcu, 0x0c),
+ XGENE_PMU_EVENT_ATTR(glbl-ack-go-recv-any-rd-req, 0x0d),
+ XGENE_PMU_EVENT_ATTR(glbl-ack-go-recv-any-rd-req-2, 0x0e),
+ XGENE_PMU_EVENT_ATTR(wr-req-sent-to-mcu, 0x0f),
+ XGENE_PMU_EVENT_ATTR(gack-recv, 0x10),
+ XGENE_PMU_EVENT_ATTR(rd-gack-recv, 0x11),
+ XGENE_PMU_EVENT_ATTR(wr-gack-recv, 0x12),
+ XGENE_PMU_EVENT_ATTR(cancel-rd-gack, 0x13),
+ XGENE_PMU_EVENT_ATTR(cancel-wr-gack, 0x14),
+ XGENE_PMU_EVENT_ATTR(mcb-csw-req-stall, 0x15),
+ XGENE_PMU_EVENT_ATTR(mcu-req-intf-blocked, 0x16),
+ XGENE_PMU_EVENT_ATTR(mcb-mcu-rd-intf-stall, 0x17),
+ XGENE_PMU_EVENT_ATTR(csw-rd-intf-blocked, 0x18),
+ XGENE_PMU_EVENT_ATTR(csw-local-ack-intf-blocked, 0x19),
+ XGENE_PMU_EVENT_ATTR(mcu-req-table-full, 0x1a),
+ XGENE_PMU_EVENT_ATTR(mcu-stat-table-full, 0x1b),
+ XGENE_PMU_EVENT_ATTR(mcu-wr-table-full, 0x1c),
+ XGENE_PMU_EVENT_ATTR(mcu-rdreceipt-resp, 0x1d),
+ XGENE_PMU_EVENT_ATTR(mcu-wrcomplete-resp, 0x1e),
+ XGENE_PMU_EVENT_ATTR(mcu-retryack-resp, 0x1f),
+ XGENE_PMU_EVENT_ATTR(mcu-pcrdgrant-resp, 0x20),
+ XGENE_PMU_EVENT_ATTR(mcu-req-from-lastload, 0x21),
+ XGENE_PMU_EVENT_ATTR(mcu-req-from-bypass, 0x22),
+ XGENE_PMU_EVENT_ATTR(volt-droop-detect, 0x23),
+ NULL,
+};
+
+static struct attribute *mc_pmu_v3_events_attrs[] = {
+ XGENE_PMU_EVENT_ATTR(cycle-count, 0x00),
+ XGENE_PMU_EVENT_ATTR(pmu-act-sent, 0x01),
+ XGENE_PMU_EVENT_ATTR(pmu-pre-sent, 0x02),
+ XGENE_PMU_EVENT_ATTR(pmu-rd-sent, 0x03),
+ XGENE_PMU_EVENT_ATTR(pmu-rda-sent, 0x04),
+ XGENE_PMU_EVENT_ATTR(pmu-wr-sent, 0x05),
+ XGENE_PMU_EVENT_ATTR(pmu-wra-sent, 0x06),
+ XGENE_PMU_EVENT_ATTR(pmu-pd-entry-vld, 0x07),
+ XGENE_PMU_EVENT_ATTR(pmu-sref-entry-vld, 0x08),
+ XGENE_PMU_EVENT_ATTR(pmu-prea-sent, 0x09),
+ XGENE_PMU_EVENT_ATTR(pmu-ref-sent, 0x0a),
+ XGENE_PMU_EVENT_ATTR(pmu-rd-rda-sent, 0x0b),
+ XGENE_PMU_EVENT_ATTR(pmu-wr-wra-sent, 0x0c),
+ XGENE_PMU_EVENT_ATTR(pmu-raw-hazard, 0x0d),
+ XGENE_PMU_EVENT_ATTR(pmu-war-hazard, 0x0e),
+ XGENE_PMU_EVENT_ATTR(pmu-waw-hazard, 0x0f),
+ XGENE_PMU_EVENT_ATTR(pmu-rar-hazard, 0x10),
+ XGENE_PMU_EVENT_ATTR(pmu-raw-war-waw-hazard, 0x11),
+ XGENE_PMU_EVENT_ATTR(pmu-hprd-lprd-wr-req-vld, 0x12),
+ XGENE_PMU_EVENT_ATTR(pmu-lprd-req-vld, 0x13),
+ XGENE_PMU_EVENT_ATTR(pmu-hprd-req-vld, 0x14),
+ XGENE_PMU_EVENT_ATTR(pmu-hprd-lprd-req-vld, 0x15),
+ XGENE_PMU_EVENT_ATTR(pmu-wr-req-vld, 0x16),
+ XGENE_PMU_EVENT_ATTR(pmu-partial-wr-req-vld, 0x17),
+ XGENE_PMU_EVENT_ATTR(pmu-rd-retry, 0x18),
+ XGENE_PMU_EVENT_ATTR(pmu-wr-retry, 0x19),
+ XGENE_PMU_EVENT_ATTR(pmu-retry-gnt, 0x1a),
+ XGENE_PMU_EVENT_ATTR(pmu-rank-change, 0x1b),
+ XGENE_PMU_EVENT_ATTR(pmu-dir-change, 0x1c),
+ XGENE_PMU_EVENT_ATTR(pmu-rank-dir-change, 0x1d),
+ XGENE_PMU_EVENT_ATTR(pmu-rank-active, 0x1e),
+ XGENE_PMU_EVENT_ATTR(pmu-rank-idle, 0x1f),
+ XGENE_PMU_EVENT_ATTR(pmu-rank-pd, 0x20),
+ XGENE_PMU_EVENT_ATTR(pmu-rank-sref, 0x21),
+ XGENE_PMU_EVENT_ATTR(pmu-queue-fill-gt-thresh, 0x22),
+ XGENE_PMU_EVENT_ATTR(pmu-queue-rds-gt-thresh, 0x23),
+ XGENE_PMU_EVENT_ATTR(pmu-queue-wrs-gt-thresh, 0x24),
+ XGENE_PMU_EVENT_ATTR(pmu-phy-updt-complt, 0x25),
+ XGENE_PMU_EVENT_ATTR(pmu-tz-fail, 0x26),
+ XGENE_PMU_EVENT_ATTR(pmu-dram-errc, 0x27),
+ XGENE_PMU_EVENT_ATTR(pmu-dram-errd, 0x28),
+ XGENE_PMU_EVENT_ATTR(pmu-rd-enq, 0x29),
+ XGENE_PMU_EVENT_ATTR(pmu-wr-enq, 0x2a),
+ XGENE_PMU_EVENT_ATTR(pmu-tmac-limit-reached, 0x2b),
+ XGENE_PMU_EVENT_ATTR(pmu-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 ssize_t xgene_pmu_cpumask_show(struct device *dev,
};

/*
- * 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 ssize_t xgene_pmu_cpumask_show(struct device *dev,
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;
@@ -405,17 +724,47 @@ 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 (u64)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)
{
@@ -423,6 +772,19 @@ static inline u64 xgene_pmu_read_counter32(struct xgene_pmu_dev *pmu_dev,
}

static inline void
+xgene_pmu_write_counter64(struct xgene_pmu_dev *pmu_dev, int idx, u64 val)
+{
+ u32 cnt_lo, cnt_hi;
+
+ cnt_lo = val & 0xFFFFFFFF;
+ cnt_hi = val >> 32;
+
+ /* v3 has 64-bit counter registers composed by 2 32-bit registers */
+ xgene_pmu_write_counter32(pmu_dev, 2 * idx, val);
+ xgene_pmu_write_counter32(pmu_dev, 2 * idx + 1, val >> 32);
+}
+
+static inline void
xgene_pmu_write_evttype(struct xgene_pmu_dev *pmu_dev, int idx, u32 val)
{
writel(val, pmu_dev->inf->csr + PMU_PMEVTYPER0 + (4 * idx));
@@ -435,12 +797,18 @@ static inline u64 xgene_pmu_read_counter32(struct xgene_pmu_dev *pmu_dev,
}

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)
{
u32 val;
@@ -621,7 +989,7 @@ 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
+ * The X-Gene PMU counters have a period of 2^32 or more. 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
* events occur and the counter overtakes its previous value.
@@ -741,7 +1109,10 @@ 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 +1157,38 @@ static int xgene_init_perf(struct xgene_pmu_dev *pmu_dev, char *name)

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 +1212,25 @@ static int xgene_init_perf(struct xgene_pmu_dev *pmu_dev, char *name)
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;
+ 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;

/* 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];
@@ -850,6 +1246,7 @@ static void _xgene_pmu_isr(int irq, struct xgene_pmu_dev *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 +1256,33 @@ 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);
}
@@ -885,12 +1293,14 @@ 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,
+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;
unsigned int reg;
+ u32 mcb0routing;
+ u32 mcb1routing;

res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
csw_csr = devm_ioremap_resource(&pdev->dev, res);
@@ -899,41 +1309,72 @@ static int acpi_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
return PTR_ERR(csw_csr);
}

- res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
- mcba_csr = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(mcba_csr)) {
- dev_err(&pdev->dev, "ioremap failed for MCBA CSR resource\n");
- return PTR_ERR(mcba_csr);
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
- mcbb_csr = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(mcbb_csr)) {
- dev_err(&pdev->dev, "ioremap failed for MCBB CSR resource\n");
- return PTR_ERR(mcbb_csr);
- }
-
reg = readl(csw_csr + CSW_CSWCR);
- if (reg & CSW_CSWCR_DUALMCB_MASK) {
- /* Dual MCB active */
- xgene_pmu->mcb_active_mask = 0x3;
- /* Probe all active MC(s) */
- reg = readl(mcbb_csr + CSW_CSWCR);
- xgene_pmu->mc_active_mask =
- (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0xF : 0x5;
+ if (xgene_pmu->version == PCP_PMU_V3) {
+ mcb0routing = CSW_CSWCR_MCB0_ROUTING(reg);
+ mcb1routing = CSW_CSWCR_MCB0_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) && (mcb1routing == 0x0))
+ xgene_pmu->mc_active_mask = 0x0F;
+ else if ((mcb0routing == 0x1) && (mcb1routing == 0x0))
+ xgene_pmu->mc_active_mask = 0x03;
+ else
+ xgene_pmu->mc_active_mask = 0x01;
+ }
} else {
- /* Single MCB active */
- xgene_pmu->mcb_active_mask = 0x1;
- /* Probe all active MC(s) */
- reg = readl(mcba_csr + CSW_CSWCR);
- xgene_pmu->mc_active_mask =
- (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0x3 : 0x1;
- }
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+ mcba_csr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(mcba_csr)) {
+ dev_err(&pdev->dev, "ioremap failed for MCBA CSR resource\n");
+ return PTR_ERR(mcba_csr);
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
+ mcbb_csr = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(mcbb_csr)) {
+ dev_err(&pdev->dev, "ioremap failed for MCBB CSR resource\n");
+ return PTR_ERR(mcbb_csr);
+ }

+ xgene_pmu->l3c_active_mask = 0x1;
+ if (reg & CSW_CSWCR_DUALMCB_MASK) {
+ /* Dual MCB active */
+ xgene_pmu->mcb_active_mask = 0x3;
+ /* Probe all active MC(s) */
+ reg = readl(mcbb_csr + CSW_CSWCR);
+ xgene_pmu->mc_active_mask =
+ (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0xF : 0x5;
+ } else {
+ /* Single MCB active */
+ xgene_pmu->mcb_active_mask = 0x1;
+ /* Probe all active MC(s) */
+ reg = readl(mcba_csr + CSW_CSWCR);
+ xgene_pmu->mc_active_mask =
+ (reg & MCBADDRMR_DUALMCU_MODE_MASK) ? 0x3 : 0x1;
+ }
+ }
return 0;
}

-static int fdt_pmu_probe_active_mcb_mcu(struct xgene_pmu *xgene_pmu,
+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;
@@ -958,6 +1399,7 @@ 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, &reg))
return -EINVAL;

@@ -986,8 +1428,8 @@ static int xgene_pmu_probe_active_mcb_mcu(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);
+ 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 +1439,8 @@ 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 +1524,11 @@ xgene_pmu_dev_ctx *acpi_get_pmu_hw_inf(struct xgene_pmu *xgene_pmu,
{"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 +1583,9 @@ 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 +1707,9 @@ 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 +1755,23 @@ static int xgene_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu,
.stop_counters = xgene_pmu_stop_counters,
};

+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 +1782,7 @@ static int xgene_pmu_probe_pmu_dev(struct xgene_pmu *xgene_pmu,
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 +1822,10 @@ 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_ops;
+ else
+ xgene_pmu->ops = &xgene_pmu_v3_ops;

INIT_LIST_HEAD(&xgene_pmu->l3cpmus);
INIT_LIST_HEAD(&xgene_pmu->iobpmus);
--
1.9.1