drm/xe: Add stats for tlb invalidation count

Add stats for tlb invalidation count which can be viewed with per GT
stat debugfs file.

Example output:
cat /sys/kernel/debug/dri/0/gt0/stats
tlb_inval_count: 22

v2: fix #include order(Tejas)

Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sai Gowtham Ch <sai.gowtham.ch@intel.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240810191522.18616-2-nirmoy.das@intel.com
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_gt_stats.c b/drivers/gpu/drm/xe/xe_gt_stats.c
index a054cd52329cbf721f00d62a61220a06a55c3cc0..c7364a5aef8fa34dd97b3d464affdd45910d1a34 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_stats.c
+++ b/drivers/gpu/drm/xe/xe_gt_stats.c
@@ -27,6 +27,7 @@ void xe_gt_stats_incr(struct xe_gt *gt, const enum xe_gt_stats_id id, int incr)
 }
 
 static const char *const stat_description[__XE_GT_STATS_NUM_IDS] = {
+       "tlb_inval_count",
 };
 
 /**

diff --git a/drivers/gpu/drm/xe/xe_gt_stats.h b/drivers/gpu/drm/xe/xe_gt_stats.h
index 1be71ce533db1d6a9c14be5614b56ece4f5168ab..91d944f6c4e4361d14b6c44ebd9f4daed1900e7b 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_stats.h
+++ b/drivers/gpu/drm/xe/xe_gt_stats.h
@@ -10,6 +10,7 @@ struct xe_gt;
 struct drm_printer;
 
 enum xe_gt_stats_id {
+       XE_GT_STATS_ID_TLB_INVAL,
        /* must be the last entry */
        __XE_GT_STATS_NUM_IDS,
 };

diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
index 87cb76a8718c998683fc772a125ab353d43bbaeb..cca9cf536f769326e2993d9c66236a36f3fe9ba6 100644 (file)
--- a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
+++ b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
@@ -12,6 +12,7 @@
 #include "xe_gt_printk.h"
 #include "xe_guc.h"
 #include "xe_guc_ct.h"
+#include "xe_gt_stats.h"
 #include "xe_mmio.h"
 #include "xe_pm.h"
 #include "xe_sriov.h"
@@ -213,6 +214,7 @@ static int send_tlb_invalidation(struct xe_guc *guc,
                        gt->tlb_invalidation.seqno = 1;
        }
        mutex_unlock(&guc->ct.lock);
+       xe_gt_stats_incr(gt, XE_GT_STATS_ID_TLB_INVAL, 1);
 
        return ret;
 }