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drm/xe: Add page reclamation related stats

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Add page reclaim list (PRL) related stats to GT stats to assist in
debugging and tuning of page reclaim related actions. Include counters
of page sizes added to PRL and if PRL action is issued.

v2:
 - Add PRL_ABORTED_COUNT stats and corresponding changes. (Matthew B)

Signed-off-by: Brian Nguyen <brian3.nguyen@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patch.msgid.link/20260107010447.4125005-10-brian3.nguyen@intel.com
This commit is contained in:
Brian Nguyen 2026-01-07 09:04:52 +08:00 committed by Matthew Brost
parent 83b914f972
commit 2e08feebe0
6 changed files with 20 additions and 0 deletions
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5
drivers/gpu/drm/xe/xe_gt_stats.c
View File

@ -76,6 +76,11 @@ static const char *const stat_description[__XE_GT_STATS_NUM_IDS] = {
"hw_engine_group_suspend_lr_queue_us"),
DEF_STAT_STR(HW_ENGINE_GROUP_WAIT_DMA_QUEUE_US,
"hw_engine_group_wait_dma_queue_us"),
DEF_STAT_STR(PRL_4K_ENTRY_COUNT, "prl_4k_entry_count"),
DEF_STAT_STR(PRL_64K_ENTRY_COUNT, "prl_64k_entry_count"),
DEF_STAT_STR(PRL_2M_ENTRY_COUNT, "prl_2m_entry_count"),
DEF_STAT_STR(PRL_ISSUED_COUNT, "prl_issued_count"),
DEF_STAT_STR(PRL_ABORTED_COUNT, "prl_aborted_count"),
};
/**

5
drivers/gpu/drm/xe/xe_gt_stats_types.h
View File

@ -49,6 +49,11 @@ enum xe_gt_stats_id {
XE_GT_STATS_ID_HW_ENGINE_GROUP_WAIT_DMA_QUEUE_COUNT,
XE_GT_STATS_ID_HW_ENGINE_GROUP_SUSPEND_LR_QUEUE_US,
XE_GT_STATS_ID_HW_ENGINE_GROUP_WAIT_DMA_QUEUE_US,
XE_GT_STATS_ID_PRL_4K_ENTRY_COUNT,
XE_GT_STATS_ID_PRL_64K_ENTRY_COUNT,
XE_GT_STATS_ID_PRL_2M_ENTRY_COUNT,
XE_GT_STATS_ID_PRL_ISSUED_COUNT,
XE_GT_STATS_ID_PRL_ABORTED_COUNT,
/* must be the last entry */
__XE_GT_STATS_NUM_IDS,
};

3
drivers/gpu/drm/xe/xe_guc_tlb_inval.c
View File

@ -97,6 +97,7 @@ static int send_tlb_inval_ggtt(struct xe_tlb_inval *tlb_inval, u32 seqno)
static int send_page_reclaim(struct xe_guc *guc, u32 seqno,
u64 gpu_addr)
{
struct xe_gt *gt = guc_to_gt(guc);
u32 action[] = {
XE_GUC_ACTION_PAGE_RECLAMATION,
seqno,
@ -104,6 +105,8 @@ static int send_page_reclaim(struct xe_guc *guc, u32 seqno,
upper_32_bits(gpu_addr),
};
xe_gt_stats_incr(gt, XE_GT_STATS_ID_PRL_ISSUED_COUNT, 1);
return xe_guc_ct_send(&guc->ct, action, ARRAY_SIZE(action),
G2H_LEN_DW_PAGE_RECLAMATION, 1);
}

1
drivers/gpu/drm/xe/xe_page_reclaim.c
View File

@ -12,6 +12,7 @@
#include "regs/xe_gt_regs.h"
#include "xe_assert.h"
#include "xe_gt_stats.h"
#include "xe_macros.h"
#include "xe_mmio.h"
#include "xe_pat.h"

1
drivers/gpu/drm/xe/xe_page_reclaim.h
View File

@ -91,6 +91,7 @@ void xe_page_reclaim_list_invalidate(struct xe_page_reclaim_list *prl);
struct xe_page_reclaim_list *__prl = (prl); \
\
xe_page_reclaim_list_invalidate(__prl); \
xe_gt_stats_incr(__gt, XE_GT_STATS_ID_PRL_ABORTED_COUNT, 1); \
vm_dbg(&gt_to_xe(__gt)->drm, "PRL aborted: " fmt, ##__VA_ARGS__); \
} while (0)

5
drivers/gpu/drm/xe/xe_pt.c
View File

@ -11,6 +11,7 @@
#include "xe_drm_client.h"
#include "xe_exec_queue.h"
#include "xe_gt.h"
#include "xe_gt_stats.h"
#include "xe_migrate.h"
#include "xe_page_reclaim.h"
#include "xe_pt_types.h"
@ -1587,6 +1588,7 @@ static int generate_reclaim_entry(struct xe_tile *tile,
struct xe_page_reclaim_list *prl,
u64 pte, struct xe_pt *xe_child)
{
struct xe_gt *gt = tile->primary_gt;
struct xe_guc_page_reclaim_entry *reclaim_entries = prl->entries;
u64 phys_addr = pte & XE_PTE_ADDR_MASK;
u64 phys_page = phys_addr >> XE_PTE_SHIFT;
@ -1607,12 +1609,15 @@ static int generate_reclaim_entry(struct xe_tile *tile,
* Only 4K, 64K (level 0), and 2M pages are supported by hardware for page reclaim
*/
if (xe_child->level == 0 && !(pte & XE_PTE_PS64)) {
xe_gt_stats_incr(gt, XE_GT_STATS_ID_PRL_4K_ENTRY_COUNT, 1);
reclamation_size = COMPUTE_RECLAIM_ADDRESS_MASK(SZ_4K); /* reclamation_size = 0 */
xe_tile_assert(tile, phys_addr % SZ_4K == 0);
} else if (xe_child->level == 0) {
xe_gt_stats_incr(gt, XE_GT_STATS_ID_PRL_64K_ENTRY_COUNT, 1);
reclamation_size = COMPUTE_RECLAIM_ADDRESS_MASK(SZ_64K); /* reclamation_size = 4 */
xe_tile_assert(tile, phys_addr % SZ_64K == 0);
} else if (xe_child->level == 1 && pte & XE_PDE_PS_2M) {
xe_gt_stats_incr(gt, XE_GT_STATS_ID_PRL_2M_ENTRY_COUNT, 1);
reclamation_size = COMPUTE_RECLAIM_ADDRESS_MASK(SZ_2M); /* reclamation_size = 9 */
xe_tile_assert(tile, phys_addr % SZ_2M == 0);
} else {