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perf/x86/intel/uncore: Add events for Intel SPR IMC PMU 

Add missing clockticks and cas_count_* events for Intel SapphireRapids IMC
PMU. These events are useful to measure memory bandwidth.

Signed-off-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20230419214241.2310385-1-eranian@google.com
This commit is contained in:
Stephane Eranian 2023-04-19 14:42:41 -07:00 committed by Peter Zijlstra
parent 15def34e26
commit 743767d6f6
1 changed files with 12 additions and 0 deletions
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12
arch/x86/events/intel/uncore_snbep.c
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@ -6068,6 +6068,17 @@ static struct intel_uncore_ops spr_uncore_mmio_ops = {
.read_counter = uncore_mmio_read_counter,
};
static struct uncore_event_desc spr_uncore_imc_events[] = {
INTEL_UNCORE_EVENT_DESC(clockticks, "event=0x01,umask=0x00"),
INTEL_UNCORE_EVENT_DESC(cas_count_read, "event=0x05,umask=0xcf"),
INTEL_UNCORE_EVENT_DESC(cas_count_read.scale, "6.103515625e-5"),
INTEL_UNCORE_EVENT_DESC(cas_count_read.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x05,umask=0xf0"),
INTEL_UNCORE_EVENT_DESC(cas_count_write.scale, "6.103515625e-5"),
INTEL_UNCORE_EVENT_DESC(cas_count_write.unit, "MiB"),
{ /* end: all zeroes */ },
};
static struct intel_uncore_type spr_uncore_imc = {
SPR_UNCORE_COMMON_FORMAT(),
.name = "imc",
@ -6075,6 +6086,7 @@ static struct intel_uncore_type spr_uncore_imc = {
.fixed_ctr = SNR_IMC_MMIO_PMON_FIXED_CTR,
.fixed_ctl = SNR_IMC_MMIO_PMON_FIXED_CTL,
.ops = &spr_uncore_mmio_ops,
.event_descs = spr_uncore_imc_events,
};
static void spr_uncore_pci_enable_event(struct intel_uncore_box *box,