[PATCH 8/8] powerpc/perf: mpc7450: Export event names in sysfs

[Matt Turner <mattst88@gmail.com>]

perf list shows only the generic events for the MPC7450 family, so every
other event has to be written as a raw code.

Name the events in the manual (MPC7450UM Rev. 5, Tables 11-9 to 11-14)
in mpc7450-events-list.h, as the POWER7 driver does.  An event that
several PMCs implement at the same select value is listed once without
a PMC, so the driver still picks the counter.  An event repeated at
different select values is listed once and reached through the
alternatives table, whose comments now use the same names.  223 names
cover all 279 non-reserved select values.

The 7441, 7445, 7447, 7447A and 7448 have no L3, and their L3 events
are reserved.  Hide the L3 names when CPU_FTR_L3CR is clear, which is
on the 7447A and 7448.  The 7441, 7445 and 7447 share their PVRs with
the 7451, 7455 and 7457 and get CPU_FTR_L3CR, so they keep them.

Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 arch/powerpc/perf/mpc7450-events-list.h | 250 ++++++++++++++++++++++++++++++++
 arch/powerpc/perf/mpc7450-pmu.c         |  68 ++++++++-
 2 files changed, 315 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/perf/mpc7450-events-list.h b/arch/powerpc/perf/mpc7450-events-list.h
new file mode 100644
index 000000000000..b79f2fc675bf
--- /dev/null
+++ b/arch/powerpc/perf/mpc7450-events-list.h
@@ -0,0 +1,250 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Performance counter events for MPC7450-family processors, from the
+ * MPC7450 RISC Microprocessor Family Reference Manual, Rev. 5, tables 11-9
+ * to 11-14.
+ *
+ * Codes below 0x100 are the events that several PMCs implement with the
+ * same select value; the driver picks the counter.  Events that exist on
+ * more than one PMC under different select values are listed once, and
+ * the others are found through the alternatives table.
+ *
+ * EVENT_L3() events count only on parts with an L3 cache interface.
+ */
+
+/* Events available on several PMCs */
+EVENT(PM_CYC,				0x001)
+EVENT(PM_INST_CMPL,			0x002)
+EVENT(PM_TBL_BIT_TRANS,			0x003)
+EVENT(PM_INST_DISP,			0x004)
+EVENT(PM_PMEXC,				0x005)
+EVENT(PM_PMON_IN,			0x007)
+EVENT(PM_VPU_CMPL,			0x008)
+EVENT(PM_VFPU_CMPL,			0x009)
+EVENT(PM_VIU1_CMPL,			0x00a)
+EVENT(PM_VIU2_CMPL,			0x00b)
+EVENT(PM_MTVSCR_CMPL,			0x00c)
+EVENT(PM_MTVRSAVE_CMPL,			0x00d)
+EVENT(PM_VPU_OPND_WAIT_CYC,		0x00e)
+EVENT(PM_VFPU_OPND_WAIT_CYC,		0x00f)
+EVENT(PM_VIU1_OPND_WAIT_CYC,		0x010)
+EVENT(PM_VIU2_OPND_WAIT_CYC,		0x011)
+EVENT(PM_MFVSCR_SYNC_CYC,		0x012)
+EVENT(PM_VSCR_SAT_SET,			0x013)
+EVENT(PM_ST_CMPL,			0x014)
+EVENT(PM_L1_ICACHE_MISS,		0x015)
+EVENT(PM_L1_DCACHE_SNOOP,		0x016)
+
+/* PMC1 */
+EVENT(PM_BR_UNRESOLVED,			0x117)
+EVENT(PM_BR_SPEC_BUF1_CYC,		0x118)
+EVENT(PM_BR_UNIT_STALL_CYC,		0x119)
+EVENT(PM_BR_TARGET_HIT,			0x11a)
+EVENT(PM_BR_LINK_STACK_PRED,		0x11b)
+EVENT(PM_GPR_IQ_DISP,			0x11c)
+EVENT(PM_DISP_3_CYC,			0x11d)
+EVENT(PM_INSTQ_EXCEED_CYC,		0x11e)
+EVENT(PM_ALTV_IQ_EXCEED_CYC,		0x11f)
+EVENT(PM_NO_CMPL_CYC,			0x120)
+EVENT(PM_IU2_CMPL,			0x121)
+EVENT(PM_BR_CMPL,			0x122)
+EVENT(PM_EIEIO_CMPL,			0x123)
+EVENT(PM_MTSPR_CMPL,			0x124)
+EVENT(PM_SC_CMPL,			0x125)
+EVENT(PM_LD_STR_MULT_CMPL,		0x126)
+EVENT(PM_ITLB_SEARCH_CYC,		0x127)
+EVENT(PM_DTLB_SEARCH_EXCEED_CYC,	0x128)
+EVENT(PM_L1_ICACHE_ACCESS,		0x129)
+EVENT(PM_IABR_MATCH,			0x12a)
+EVENT(PM_LD_MISS_EXCEED_L1_CYC,		0x12b)
+EVENT(PM_L1_DCACHE_SNOOP_HIT_MOD,	0x12c)
+EVENT(PM_LD_MISS_ALIAS,			0x12d)
+EVENT(PM_LD_MISS_ALIAS_TOUCH,		0x12e)
+EVENT(PM_TOUCH_ALIAS,			0x12f)
+EVENT(PM_L1_DCACHE_SNOOP_HIT_COQ,	0x130)
+EVENT(PM_L1_DCACHE_SNOOP_HIT_CO,	0x131)
+EVENT(PM_L1_DCACHE_SNOOP_HIT,		0x132)
+EVENT(PM_WT_ST,				0x133)
+EVENT(PM_CI_ST,				0x134)
+EVENT(PM_L1_DCACHE_LD_HIT,		0x135)
+EVENT(PM_L1_DCACHE_TOUCH_HIT,		0x136)
+EVENT(PM_L1_DCACHE_ST_HIT,		0x137)
+EVENT(PM_L1_DCACHE_HIT,			0x138)
+EVENT(PM_DST_DISP,			0x139)
+EVENT(PM_DST_REFRESH,			0x13a)
+EVENT(PM_DST_SEARCH,			0x13b)
+EVENT(PM_DSS_CMPL,			0x13c)
+EVENT(PM_DST0_FETCH,			0x13d)
+EVENT(PM_VTQ_SUSPEND,			0x13e)
+EVENT(PM_VTQ_FETCH_HIT,			0x13f)
+EVENT(PM_VEC_LD_CMPL,			0x140)
+EVENT(PM_FP_ST_CMPL,			0x141)
+EVENT(PM_FP_ST_RENORM,			0x142)
+EVENT(PM_FP_ST_DENORM,			0x143)
+EVENT(PM_FP_ST_STALL_CYC,		0x144)
+EVENT(PM_LSU_TRUE_ALIAS_STALL,		0x146)
+EVENT(PM_LSU_INDEX_ALIAS_STALL,		0x147)
+EVENT(PM_LSU_ALIAS_FSQ,			0x148)
+EVENT(PM_LSU_ALIAS_CSQ,			0x149)
+EVENT(PM_LSU_LD_HIT_ALIAS_CSQ0,		0x14a)
+EVENT(PM_LSU_LD_MISS_ALIAS_CSQ0,	0x14b)
+EVENT(PM_LSU_TOUCH_ALIAS_FSQ,		0x14c)
+EVENT(PM_LSU_TOUCH_ALIAS_CSQ,		0x14d)
+EVENT(PM_LSU_LMQ_FULL_STALL,		0x14e)
+EVENT(PM_FP_LD_CMPL,			0x14f)
+EVENT(PM_FP_LD_SINGLE_CMPL,		0x150)
+EVENT(PM_FP_LD_DOUBLE_CMPL,		0x151)
+EVENT(PM_LSU_RA_LATCH_STALL,		0x152)
+EVENT(PM_LSU_LD_ST_ALIAS_STALL,		0x153)
+EVENT(PM_LSU_LMQ_INDEX_ALIAS,		0x154)
+EVENT(PM_LSU_STQ_INDEX_ALIAS,		0x155)
+EVENT(PM_LSU_CSQ_FWD,			0x156)
+EVENT(PM_LSU_MISALIGN_LD_FIN,		0x157)
+EVENT(PM_LSU_MISALIGN_ST_CMPL,		0x158)
+EVENT(PM_LSU_MISALIGN_STALL,		0x159)
+EVENT(PM_FPSCR_RENAME_QTR_BUSY,		0x15a)
+EVENT(PM_FPSCR_RENAME_HALF_BUSY,	0x15b)
+EVENT(PM_FPSCR_RENAME_3QTR_BUSY,	0x15c)
+EVENT(PM_FPSCR_RENAME_FULL,		0x15d)
+EVENT(PM_FP_DENORM_RESULT,		0x15e)
+
+/* PMC2 */
+EVENT(PM_L1_DCACHE_MISS,		0x217)
+EVENT(PM_FPR_IQ_DISP,			0x218)
+EVENT(PM_LSU_CMPL,			0x219)
+EVENT(PM_LD_CMPL,			0x21a)
+EVENT(PM_ST_STR_MULT_CMPL,		0x21b)
+EVENT(PM_TLBIE_CMPL,			0x21c)
+EVENT(PM_LWARX_CMPL,			0x21d)
+EVENT(PM_MFSPR_CMPL,			0x21e)
+EVENT(PM_REFETCH_SERIAL,		0x21f)
+EVENT(PM_CQ_EXCEED_CYC,			0x220)
+EVENT(PM_CMPL_1_CYC,			0x221)
+EVENT(PM_DISP_2_CYC,			0x222)
+EVENT(PM_ITLB_MISS,			0x223)
+EVENT(PM_L1_ICACHE_MISS_CYC,		0x224)
+EVENT(PM_L1_DCACHE_LD_MISS,		0x225)
+EVENT(PM_L1_DCACHE_TOUCH_MISS,		0x226)
+EVENT(PM_L1_DCACHE_ST_MISS,		0x227)
+EVENT(PM_L1_DCACHE_TOUCH_MISS_CYC,	0x228)
+EVENT(PM_L1_DCACHE_BUSY_CYC,		0x229)
+EVENT(PM_DST1_FETCH,			0x22a)
+EVENT(PM_VTQ_CANCEL,			0x22b)
+EVENT(PM_VTQ_RESUME,			0x22c)
+EVENT(PM_VTQ_FETCH_MISS,		0x22d)
+EVENT(PM_VTQ_FETCH,			0x22e)
+EVENT(PM_TLBIE_SNOOP,			0x22f)
+EVENT(PM_L1_ICACHE_RELOAD,		0x230)
+EVENT(PM_L1_DCACHE_RELOAD,		0x231)
+EVENT(PM_L1_DCACHE_CASTOUT,		0x232)
+EVENT(PM_ST_MERGE,			0x233)
+EVENT(PM_ST_MERGE_32B,			0x234)
+EVENT(PM_DABR_MATCH,			0x235)
+EVENT(PM_BR_FALLTHRU,			0x236)
+EVENT(PM_BR_SPEC_BUF1_OK,		0x237)
+EVENT(PM_BR_SPEC_BUF2_CYC,		0x238)
+EVENT(PM_BR_LR_STALL_CYC,		0x239)
+EVENT(PM_BTIC_MISS,			0x23a)
+EVENT(PM_BR_LINK_STACK_OK,		0x23b)
+EVENT(PM_FPR_IQ_STALL,			0x23c)
+EVENT(PM_PR_SWITCH,			0x23d)
+EVENT(PM_FP_ST_SINGLE_CMPL,		0x23e)
+
+/* PMC3 */
+EVENT(PM_CMPL_2_CYC,			0x308)
+EVENT(PM_DISP_1_CYC,			0x309)
+EVENT(PM_VR_IQ_DISP,			0x30a)
+EVENT(PM_VR_IQ_STALL,			0x30b)
+EVENT(PM_GPR_RB_EXCEED_CYC,		0x30c)
+EVENT(PM_FPR_IQ_ENTRIES,		0x30d)
+EVENT(PM_FPU_CMPL,			0x30e)
+EVENT(PM_STWCX_CMPL,			0x30f)
+EVENT(PM_LD_STR_MULT_PIECES,		0x310)
+EVENT(PM_ITLB_SEARCH_EXCEED,		0x311)
+EVENT(PM_DTLB_MISS,			0x312)
+EVENT(PM_L1_ICACHE_MISS_CANCEL,		0x313)
+EVENT(PM_L1_DCACHE_OP_HIT,		0x314)
+EVENT(PM_L1_DCACHE_LD_MISS_CYC,		0x315)
+EVENT(PM_L1_DCACHE_PUSH,		0x316)
+EVENT(PM_VT2_FETCH,			0x318)
+EVENT(PM_BR_TAKEN,			0x319)
+EVENT(PM_BR_FLUSH,			0x31a)
+EVENT(PM_BR_SPEC_BUF2_OK,		0x31b)
+EVENT(PM_BR_SPEC_BUF3_CYC,		0x31c)
+EVENT(PM_BR_CTR_STALL_CYC,		0x31d)
+EVENT(PM_FBTIC_HIT,			0x31e)
+EVENT(PM_BR_LINK_STACK_MPRED,		0x31f)
+
+/* PMC4 */
+EVENT(PM_CMPL_3_CYC,			0x40e)
+EVENT(PM_DISP_0_CYC,			0x40f)
+EVENT(PM_GPR_IQ_EXCEED_CYC,		0x410)
+EVENT(PM_GPR_IQ_STALL_CYC,		0x411)
+EVENT(PM_IU1_CMPL,			0x412)
+EVENT(PM_DSSALL_CMPL,			0x413)
+EVENT(PM_TLBSYNC_CMPL,			0x414)
+EVENT(PM_SYNC_CMPL,			0x415)
+EVENT(PM_ST_STR_MULT_PIECES,		0x416)
+EVENT(PM_DTLB_SEARCH_CYC,		0x417)
+EVENT(PM_LSU_SNOOP_RETRY,		0x418)
+EVENT(PM_STWCX_OK,			0x419)
+EVENT(PM_DST3_FETCH,			0x41a)
+EVENT(PM_BR_SPEC_BUF3_OK,		0x41b)
+EVENT(PM_BR_MPRED,			0x41c)
+EVENT(PM_BR_FOLDED,			0x41d)
+EVENT(PM_FP_ST_DOUBLE_CMPL,		0x41e)
+
+/* PMC5 */
+EVENT(PM_L2_HIT,			0x502)
+EVENT_L3(PM_L3_HIT,			0x503)
+EVENT(PM_L2_ICACHE_MISS,		0x504)
+EVENT_L3(PM_L3_ICACHE_MISS,		0x505)
+EVENT(PM_L2_DCACHE_MISS,		0x506)
+EVENT_L3(PM_L3_DCACHE_MISS,		0x507)
+EVENT(PM_L2_LD_HIT,			0x508)
+EVENT(PM_L2_ST_HIT,			0x509)
+EVENT_L3(PM_L3_LD_HIT,			0x50a)
+EVENT_L3(PM_L3_ST_HIT,			0x50b)
+EVENT(PM_L2_TOUCH_HIT,			0x50d)
+EVENT_L3(PM_L3_TOUCH_HIT,		0x50e)
+EVENT(PM_INT_RETRY,			0x50f)
+EVENT(PM_SNOOP_MOD,			0x510)
+EVENT(PM_SNOOP_VALID,			0x511)
+EVENT(PM_INTV_LOCAL,			0x512)
+EVENT(PM_L2_MISS,			0x513)
+EVENT_L3(PM_L3_MISS,			0x514)
+
+/* PMC6 */
+EVENT(PM_L2_CASTOUT,			0x608)
+EVENT_L3(PM_L3_CASTOUT,			0x609)
+EVENT(PM_L2SQ_FULL_CYC,			0x60a)
+EVENT_L3(PM_L3SQ_FULL_CYC,		0x60b)
+EVENT(PM_SNOOP_RETRY,			0x60f)
+EVENT_L3(PM_L3_RAQ_FULL_CYC,		0x610)
+EVENT_L3(PM_L3_WAQ_FULL_CYC,		0x611)
+EVENT(PM_L1_EXT_INTV,			0x613)
+EVENT(PM_L2_EXT_INTV,			0x614)
+EVENT_L3(PM_L3_EXT_INTV,		0x615)
+EVENT(PM_EXT_INTV,			0x616)
+EVENT(PM_EXT_PUSH,			0x617)
+EVENT(PM_EXT_SNOOP_RETRY,		0x618)
+EVENT(PM_DTQ_FULL_CYC,			0x619)
+EVENT(PM_BUS_RETRY,			0x61a)
+EVENT(PM_L2_VALID_REQ,			0x61b)
+EVENT(PM_BORDQ_FULL_CYC,		0x61c)
+EVENT(PM_BUS_TA_RD,			0x62a)
+EVENT(PM_BUS_TA_WR,			0x62b)
+EVENT(PM_BUS_RD_OK,			0x62c)
+EVENT(PM_BUS_WR_OK,			0x62d)
+EVENT(PM_BUS_RDWR_OK,			0x62e)
+EVENT(PM_BUS_RETRY_L1,			0x62f)
+EVENT(PM_BUS_RETRY_ADJ,			0x630)
+EVENT(PM_BUS_RETRY_COLLISION,		0x631)
+EVENT(PM_BUS_RETRY_INTV_ORDER,		0x632)
+EVENT(PM_SNOOP_REQ,			0x633)
+EVENT(PM_L2_PREF,			0x634)
+EVENT(PM_L2_PREF_LD_COLLISION,		0x635)
+EVENT(PM_L2_PREF_ST_COLLISION,		0x636)
+EVENT(PM_L2_PREF_IFETCH_COLLISION,	0x637)
+EVENT(PM_L2_PREF_LMQ_COLLISION,		0x638)
+EVENT(PM_L2_PREF_FULL,			0x639)
diff --git a/arch/powerpc/perf/mpc7450-pmu.c b/arch/powerpc/perf/mpc7450-pmu.c
index 9bed5c238f45..4ee7b1a822ea 100644
--- a/arch/powerpc/perf/mpc7450-pmu.c
+++ b/arch/powerpc/perf/mpc7450-pmu.c
@@ -22,6 +22,18 @@
 #define PM_PMC_MSK	7
 #define PM_PMCSEL_MSK	0x7f
 
+/*
+ * MPC7450 event codes.
+ */
+#define EVENT(_name, _code)	_name = _code,
+#define EVENT_L3(_name, _code)	_name = _code,
+
+enum {
+#include "mpc7450-events-list.h"
+};
+#undef EVENT
+#undef EVENT_L3
+
 /*
  * Classify events according to how specific their PMC requirements are.
  * Result is:
@@ -190,11 +202,11 @@ static const unsigned int event_alternatives[][MAX_ALT] = {
 	{ 0x505, 0x605, 0x621 },	/* PM_L3_ICACHE_MISS */
 	{ 0x506, 0x606 },		/* PM_L2_DCACHE_MISS */
 	{ 0x507, 0x607, 0x622 },	/* PM_L3_DCACHE_MISS */
-	{ 0x50a, 0x623 },		/* PM_LD_HIT_L3 */
-	{ 0x50b, 0x624 },		/* PM_ST_HIT_L3 */
+	{ 0x50a, 0x623 },		/* PM_L3_LD_HIT */
+	{ 0x50b, 0x624 },		/* PM_L3_ST_HIT */
 	{ 0x50d, 0x60d },		/* PM_L2_TOUCH_HIT */
 	{ 0x50e, 0x60e, 0x625 },	/* PM_L3_TOUCH_HIT */
-	{ 0x512, 0x612 },		/* PM_INT_LOCAL */
+	{ 0x512, 0x612 },		/* PM_INTV_LOCAL */
 	{ 0x513, 0x61d },		/* PM_L2_MISS */
 	{ 0x514, 0x61e, 0x620 },	/* PM_L3_MISS */
 };
@@ -398,6 +410,55 @@ static u64 mpc7450_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
 	},
 };
 
+#define EVENT(_name, _code)	POWER_EVENT_ATTR(_name, _name);
+#define EVENT_L3(_name, _code)	POWER_EVENT_ATTR(_name, _name);
+#include "mpc7450-events-list.h"
+#undef EVENT
+#undef EVENT_L3
+
+#define EVENT(_name, _code)	POWER_EVENT_PTR(_name),
+#define EVENT_L3(_name, _code)	POWER_EVENT_PTR(_name),
+
+static struct attribute *mpc7450_events_attr[] = {
+#include "mpc7450-events-list.h"
+	NULL
+};
+
+#undef EVENT
+#undef EVENT_L3
+
+static bool mpc7450_is_l3_event(u64 event)
+{
+	switch (event) {
+#define EVENT(_name, _code)
+#define EVENT_L3(_name, _code)	case _code:
+#include "mpc7450-events-list.h"
+#undef EVENT
+#undef EVENT_L3
+		return true;
+	}
+	return false;
+}
+
+/* The L3 events are reserved on parts without an L3 interface. */
+static umode_t mpc7450_events_is_visible(struct kobject *kobj,
+					 struct attribute *attr, int n)
+{
+	struct perf_pmu_events_attr *pmu_attr;
+
+	pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr.attr);
+	if (mpc7450_is_l3_event(pmu_attr->id) && !cpu_has_feature(CPU_FTR_L3CR))
+		return 0;
+
+	return attr->mode;
+}
+
+static const struct attribute_group mpc7450_pmu_events_group = {
+	.name = "events",
+	.attrs = mpc7450_events_attr,
+	.is_visible = mpc7450_events_is_visible,
+};
+
 PMU_FORMAT_ATTR(event,		"config:0-18");
 PMU_FORMAT_ATTR(pmcsel,		"config:0-6");
 PMU_FORMAT_ATTR(pmc,		"config:8-10");
@@ -420,6 +481,7 @@ static const struct attribute_group mpc7450_pmu_format_group = {
 
 static const struct attribute_group *mpc7450_pmu_attr_groups[] = {
 	&mpc7450_pmu_format_group,
+	&mpc7450_pmu_events_group,
 	NULL,
 };
 

-- 
2.55.0