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

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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: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://patch.msgid.link/20251126185952.546277-9-matthew.brost@intel.com
This commit is contained in:
Matthew Brost 2025-11-26 10:59:51 -08:00
parent b80961a86b
commit 7032361d8c
3 changed files with 12 additions and 0 deletions
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8
drivers/gpu/drm/xe/xe_lrc.c
View File

@ -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;

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

@ -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;

3
drivers/gpu/drm/xe/xe_lrc_types.h
View File

@ -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;