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perf/x86/intel/uncore: Fix the scale of IIO free running counters on ICX

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There was a mistake in the ICX uncore spec too. The counter increments
for every 32 bytes rather than 4 bytes.

The same as SNR, there are 1 ioclk and 8 IIO bandwidth in free running
counters. Reuse the snr_uncore_iio_freerunning_events().

Fixes: 2b3b76b5ec67 ("perf/x86/intel/uncore: Add Ice Lake server uncore support")
Reported-by: Tang Jun <dukang.tj@alibaba-inc.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250416142426.3933977-2-kan.liang@linux.intel.com
This commit is contained in:
Kan Liang 2025-04-16 07:24:25 -07:00 committed by Ingo Molnar
parent 96a720db59
commit 32c7f11502
1 changed files with 1 additions and 32 deletions
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33
arch/x86/events/intel/uncore_snbep.c
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@ -5485,37 +5485,6 @@ static struct freerunning_counters icx_iio_freerunning[] = {
[ICX_IIO_MSR_BW_IN] = { 0xaa0, 0x1, 0x10, 8, 48, icx_iio_bw_freerunning_box_offsets },
};
static struct uncore_event_desc icx_uncore_iio_freerunning_events[] = {
/* Free-Running IIO CLOCKS Counter */
INTEL_UNCORE_EVENT_DESC(ioclk, "event=0xff,umask=0x10"),
/* Free-Running IIO BANDWIDTH IN Counters */
INTEL_UNCORE_EVENT_DESC(bw_in_port0, "event=0xff,umask=0x20"),
INTEL_UNCORE_EVENT_DESC(bw_in_port0.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port0.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(bw_in_port1, "event=0xff,umask=0x21"),
INTEL_UNCORE_EVENT_DESC(bw_in_port1.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port1.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(bw_in_port2, "event=0xff,umask=0x22"),
INTEL_UNCORE_EVENT_DESC(bw_in_port2.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port2.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(bw_in_port3, "event=0xff,umask=0x23"),
INTEL_UNCORE_EVENT_DESC(bw_in_port3.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port3.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(bw_in_port4, "event=0xff,umask=0x24"),
INTEL_UNCORE_EVENT_DESC(bw_in_port4.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port4.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(bw_in_port5, "event=0xff,umask=0x25"),
INTEL_UNCORE_EVENT_DESC(bw_in_port5.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port5.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(bw_in_port6, "event=0xff,umask=0x26"),
INTEL_UNCORE_EVENT_DESC(bw_in_port6.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port6.unit, "MiB"),
INTEL_UNCORE_EVENT_DESC(bw_in_port7, "event=0xff,umask=0x27"),
INTEL_UNCORE_EVENT_DESC(bw_in_port7.scale, "3.814697266e-6"),
INTEL_UNCORE_EVENT_DESC(bw_in_port7.unit, "MiB"),
{ /* end: all zeroes */ },
};
static struct intel_uncore_type icx_uncore_iio_free_running = {
.name = "iio_free_running",
.num_counters = 9,
@ -5523,7 +5492,7 @@ static struct intel_uncore_type icx_uncore_iio_free_running = {
.num_freerunning_types = ICX_IIO_FREERUNNING_TYPE_MAX,
.freerunning = icx_iio_freerunning,
.ops = &skx_uncore_iio_freerunning_ops,
.event_descs = icx_uncore_iio_freerunning_events,
.event_descs = snr_uncore_iio_freerunning_events,
.format_group = &skx_uncore_iio_freerunning_format_group,
};