drm/i915/guc: Add a debug print on GuC triggered reset

For understanding bug reports, it can be useful to have an explicit
dmesg print when a reset notification is received from GuC. As opposed
to simply inferring that this happened from other messages.

Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230127002842.3169194-8-John.C.Harrison@Intel.com

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index 7adc35b..2e6ab0b 100644 (file)
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -4666,6 +4666,10 @@ static void guc_handle_context_reset(struct intel_guc *guc,
 {
        trace_intel_context_reset(ce);
 
+       drm_dbg(&guc_to_gt(guc)->i915->drm, "Got GuC reset of 0x%04X, exiting = %d, banned = %d\n",
+               ce->guc_id.id, test_bit(CONTEXT_EXITING, &ce->flags),
+               test_bit(CONTEXT_BANNED, &ce->flags));
+
        if (likely(intel_context_is_schedulable(ce))) {
                capture_error_state(guc, ce);
                guc_context_replay(ce);