Commit 7032361d authored by Matthew Brost's avatar Matthew Brost
Browse files

drm/xe: Add replay_offset and replay_length lines to LRC HWCTX snapshot 



Add replay_offset and replay_length lines to LRC HWCTX snapshot with the
idea being this information can be used extract the data which needs to
be pass to exec queue extension DRM_XE_EXEC_QUEUE_SET_HANG_REPLAY_STATE
so GPU hang can be replayed via a Mesa tool.

The additional lines look like:

[HWCTX].replay_offset: 0x%x
[HWCTX].replay_length: 0x%x

Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: default avatarMatthew Brost <matthew.brost@intel.com>
Reviewed-by: default avatarJonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patch.msgid.link/20251126185952.546277-9-matthew.brost@intel.com
parent b80961a8

drivers/gpu/drm/xe/xe_lrc.c

+8 −0
Original line number Diff line number Diff line
@@ -1402,6 +1402,9 @@ static int xe_lrc_init(struct xe_lrc *lrc, struct xe_hw_engine *hwe, 


	kref_init(&lrc->refcount);

	lrc->gt = gt;

	lrc->replay_size = xe_gt_lrc_size(gt, hwe->class);

	if (xe_gt_has_indirect_ring_state(gt))

		lrc->replay_size -= LRC_INDIRECT_RING_STATE_SIZE;

	lrc->size = lrc_size;

	lrc->flags = 0;

	lrc->ring.size = ring_size;
@@ -2235,6 +2238,8 @@ struct xe_lrc_snapshot *xe_lrc_snapshot_capture(struct xe_lrc *lrc) 
	snapshot->lrc_bo = xe_bo_get(lrc->bo);

	snapshot->lrc_offset = xe_lrc_pphwsp_offset(lrc);

	snapshot->lrc_size = lrc->size;

	snapshot->replay_offset = 0;

	snapshot->replay_size = lrc->replay_size;

	snapshot->lrc_snapshot = NULL;

	snapshot->ctx_timestamp = lower_32_bits(xe_lrc_ctx_timestamp(lrc));

	snapshot->ctx_job_timestamp = xe_lrc_ctx_job_timestamp(lrc);
@@ -2305,6 +2310,9 @@ void xe_lrc_snapshot_print(struct xe_lrc_snapshot *snapshot, struct drm_printer 
	}



	drm_printf(p, "\n\t[HWCTX].length: 0x%lx\n", snapshot->lrc_size - LRC_PPHWSP_SIZE);

	drm_printf(p, "\n\t[HWCTX].replay_offset: 0x%lx\n", snapshot->replay_offset);

	drm_printf(p, "\n\t[HWCTX].replay_length: 0x%lx\n", snapshot->replay_size);



	drm_puts(p, "\t[HWCTX].data: ");

	for (; i < snapshot->lrc_size; i += sizeof(u32)) {

		u32 *val = snapshot->lrc_snapshot + i;

drivers/gpu/drm/xe/xe_lrc.h

+1 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ struct xe_lrc_snapshot { 
	struct xe_bo *lrc_bo;

	void *lrc_snapshot;

	unsigned long lrc_size, lrc_offset;

	unsigned long replay_size, replay_offset;



	u32 context_desc;

	u32 ring_addr;

drivers/gpu/drm/xe/xe_lrc_types.h

+3 −0
Original line number Diff line number Diff line
@@ -25,6 +25,9 @@ struct xe_lrc { 
	/** @size: size of the lrc and optional indirect ring state */

	u32 size;



	/** @replay_size: Size LRC needed for replaying a hang */

	u32 replay_size;



	/** @gt: gt which this LRC belongs to */

	struct xe_gt *gt;