drm/xe: Capture GuC CT snapshot when stopped

It is useful capture the GuC CT snapshot if the GuC CT has been
forcefully put into the stopped state. Enable snapshot capture when in
this state.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240405211632.223568-3-matthew.brost@intel.com

diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c
index 6c37f4f9bddd45769766645cfb5a6f3cd669a521..0aa3abaca66d9d7eab230c58c6c14d1132b49c0d 100644 (file)
--- a/drivers/gpu/drm/xe/xe_guc_ct.c
+++ b/drivers/gpu/drm/xe/xe_guc_ct.c
@@ -1403,7 +1403,7 @@ struct xe_guc_ct_snapshot *xe_guc_ct_snapshot_capture(struct xe_guc_ct *ct,
                return NULL;
        }
 
-       if (xe_guc_ct_enabled(ct)) {
+       if (xe_guc_ct_enabled(ct) || ct->state == XE_GUC_CT_STATE_STOPPED) {
                snapshot->ct_enabled = true;
                snapshot->g2h_outstanding = READ_ONCE(ct->g2h_outstanding);
                guc_ctb_snapshot_capture(xe, &ct->ctbs.h2g,