Messages in this thread Patch in this message | | | From | kan.liang@linux ... | Subject | [PATCH 4/5] perf/x86/intel/uncore: Support IIO free-running counters on GNR | Date | Mon, 2 Oct 2023 08:03:24 -0700 |
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From: Kan Liang <kan.liang@linux.intel.com>
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> --- arch/x86/events/intel/uncore_snbep.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index e2ce97d73a31..60334026141a 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -6632,11 +6632,21 @@ static struct intel_uncore_type *gnr_uncores[UNCORE_GNR_NUM_UNCORE_TYPES] = { &gnr_uncore_mdf_sbo, }; +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) -- 2.35.1
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