lkml.org 
[lkml]   [2023]   [Nov]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH V2 4/5] perf/x86/intel/uncore: Support IIO free-running counters on GNR
Date
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.

Tested-by: Ammy Yi <ammy.yi@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
---

Changes since V1:
- Add Tested-by tag

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 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)
--
2.35.1
\
 
 \ /
  Last update: 2023-11-20 14:03    [W:0.058 / U:0.488 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site