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perf/x86/intel/uncore: Support IIO free-running counters on GNR

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The free-running counters for IIO uncore blocks on Granite Rapids are
similar to Sapphire Rapids. The key difference is the offset of the
registers. The number of the IIO uncore blocks can also be retrieved
from the discovery table.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Ammy Yi <ammy.yi@intel.com>
Link: https://lore.kernel.org/r/20231117163939.2468007-4-kan.liang@linux.intel.com
This commit is contained in:
Kan Liang 2023-11-17 08:39:38 -08:00 • committed by Peter Zijlstra
parent 632c4bf6d0
commit 388d76175b
1 changed files with 11 additions and 1 deletions
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12
arch/x86/events/intel/uncore_snbep.c
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@ -6648,11 +6648,21 @@ static struct intel_uncore_type *gnr_uncores[UNCORE_GNR_NUM_UNCORE_TYPES] = {
NULL,
};
static struct freerunning_counters gnr_iio_freerunning[] = {
[SPR_IIO_MSR_IOCLK] = { 0x290e, 0x01, 0x10, 1, 48 },
[SPR_IIO_MSR_BW_IN] = { 0x360e, 0x10, 0x80, 8, 48 },
[SPR_IIO_MSR_BW_OUT] = { 0x2e0e, 0x10, 0x80, 8, 48 },
};
void gnr_uncore_cpu_init(void)
{
uncore_msr_uncores = uncore_get_uncores(UNCORE_ACCESS_MSR, 0, NULL,
uncore_msr_uncores = uncore_get_uncores(UNCORE_ACCESS_MSR,
UNCORE_SPR_MSR_EXTRA_UNCORES,
spr_msr_uncores,
UNCORE_GNR_NUM_UNCORE_TYPES,
gnr_uncores);
spr_uncore_iio_free_running.num_boxes = uncore_type_max_boxes(uncore_msr_uncores, UNCORE_SPR_IIO);
spr_uncore_iio_free_running.freerunning = gnr_iio_freerunning;
}
int gnr_uncore_pci_init(void)