Commit 4e966014 authored by Francois Dugast's avatar Francois Dugast Committed by Matthew Brost
Browse files

drm/xe: Add new SVM copy GT stats per size 



Breakdown the GT stats for copy to host and copy to device per size (4K,
64K 2M) to make it easier for user space to track memory migrations.
This is helpful to verify allocation alignment is correct when porting
applications to SVM.

Cc: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: default avatarFrancois Dugast <francois.dugast@intel.com>
Reviewed-by: default avatarMatthew Brost <matthew.brost@intel.com>
Signed-off-by: default avatarMatthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260325160152.1057556-1-francois.dugast@intel.com
parent 50c577ea

drivers/gpu/drm/xe/xe_gt_stats.c

+6 −0
Original line number Diff line number Diff line
@@ -85,7 +85,13 @@ static const char *const stat_description[__XE_GT_STATS_NUM_IDS] = { 
	DEF_STAT_STR(SVM_64K_CPU_COPY_US, "svm_64K_cpu_copy_us"),

	DEF_STAT_STR(SVM_2M_CPU_COPY_US, "svm_2M_cpu_copy_us"),

	DEF_STAT_STR(SVM_DEVICE_COPY_KB, "svm_device_copy_kb"),

	DEF_STAT_STR(SVM_4K_DEVICE_COPY_KB, "svm_4K_device_copy_kb"),

	DEF_STAT_STR(SVM_64K_DEVICE_COPY_KB, "svm_64K_device_copy_kb"),

	DEF_STAT_STR(SVM_2M_DEVICE_COPY_KB, "svm_2M_device_copy_kb"),

	DEF_STAT_STR(SVM_CPU_COPY_KB, "svm_cpu_copy_kb"),

	DEF_STAT_STR(SVM_4K_CPU_COPY_KB, "svm_4K_cpu_copy_kb"),

	DEF_STAT_STR(SVM_64K_CPU_COPY_KB, "svm_64K_cpu_copy_kb"),

	DEF_STAT_STR(SVM_2M_CPU_COPY_KB, "svm_2M_cpu_copy_kb"),

	DEF_STAT_STR(SVM_4K_GET_PAGES_US, "svm_4K_get_pages_us"),

	DEF_STAT_STR(SVM_64K_GET_PAGES_US, "svm_64K_get_pages_us"),

	DEF_STAT_STR(SVM_2M_GET_PAGES_US, "svm_2M_get_pages_us"),

drivers/gpu/drm/xe/xe_gt_stats_types.h

+6 −0
Original line number Diff line number Diff line
@@ -40,7 +40,13 @@ enum xe_gt_stats_id { 
	XE_GT_STATS_ID_SVM_64K_CPU_COPY_US,

	XE_GT_STATS_ID_SVM_2M_CPU_COPY_US,

	XE_GT_STATS_ID_SVM_DEVICE_COPY_KB,

	XE_GT_STATS_ID_SVM_4K_DEVICE_COPY_KB,

	XE_GT_STATS_ID_SVM_64K_DEVICE_COPY_KB,

	XE_GT_STATS_ID_SVM_2M_DEVICE_COPY_KB,

	XE_GT_STATS_ID_SVM_CPU_COPY_KB,

	XE_GT_STATS_ID_SVM_4K_CPU_COPY_KB,

	XE_GT_STATS_ID_SVM_64K_CPU_COPY_KB,

	XE_GT_STATS_ID_SVM_2M_CPU_COPY_KB,

	XE_GT_STATS_ID_SVM_4K_GET_PAGES_US,

	XE_GT_STATS_ID_SVM_64K_GET_PAGES_US,

	XE_GT_STATS_ID_SVM_2M_GET_PAGES_US,

drivers/gpu/drm/xe/xe_svm.c

+25 −2
Original line number Diff line number Diff line
@@ -485,11 +485,34 @@ static void xe_svm_copy_kb_stats_incr(struct xe_gt *gt, 
				      const enum xe_svm_copy_dir dir,

				      int kb)

{

	if (dir == XE_SVM_COPY_TO_VRAM)

	if (dir == XE_SVM_COPY_TO_VRAM) {

		switch (kb) {

		case 4:

			xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_4K_DEVICE_COPY_KB, kb);

			break;

		case 64:

			xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_64K_DEVICE_COPY_KB, kb);

			break;

		case 2048:

			xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_2M_DEVICE_COPY_KB, kb);

			break;

		}

		xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_DEVICE_COPY_KB, kb);

	else

	} else {

		switch (kb) {

		case 4:

			xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_4K_CPU_COPY_KB, kb);

			break;

		case 64:

			xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_64K_CPU_COPY_KB, kb);

			break;

		case 2048:

			xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_2M_CPU_COPY_KB, kb);

			break;

		}

		xe_gt_stats_incr(gt, XE_GT_STATS_ID_SVM_CPU_COPY_KB, kb);

	}

}



static void xe_svm_copy_us_stats_incr(struct xe_gt *gt,

				      const enum xe_svm_copy_dir dir,