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authorKan Liang <kan.liang@linux.intel.com>2023-11-17 19:39:38 +0300
committerPeter Zijlstra <peterz@infradead.org>2023-11-24 22:25:02 +0300
commit388d76175bd9bbad52bbff25c88361d9e5c6615e (patch)
tree8356be53d283a9f02b5be559d24b8a7db612db91 /arch/x86/events
parent632c4bf6d007862307440b177d9fee829857e8bb (diff)
downloadlinux-388d76175bd9bbad52bbff25c88361d9e5c6615e.tar.xz
perf/x86/intel/uncore: Support IIO free-running counters on GNR
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
Diffstat (limited to 'arch/x86/events')
-rw-r--r--arch/x86/events/intel/uncore_snbep.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index ab31cda797df..aeaa8efe3c62 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -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)