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dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: daniele.ceraolospurio@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 12/10/2021 16:56, Matthew Brost wrote: > Print CT state (H2G + G2H head / tail pointers, credits) on CT > deadlock. > > Signed-off-by: Matthew Brost Reviewed-by: John Harrison > --- > drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 9 +++++++++ > 1 file changed, 9 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c > index a0cc34be7b56..ee5525c6f79b 100644 > --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c > +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c > @@ -523,6 +523,15 @@ static inline bool ct_deadlocked(struct intel_guc_ct *ct) > CT_ERROR(ct, "Communication stalled for %lld ms, desc status=%#x,%#x\n", > ktime_ms_delta(ktime_get(), ct->stall_time), > send->status, recv->status); > + CT_ERROR(ct, "H2G Space: %u\n", > + atomic_read(&ct->ctbs.send.space) * 4); > + CT_ERROR(ct, "Head: %u\n", ct->ctbs.send.desc->head); > + CT_ERROR(ct, "Tail: %u\n", ct->ctbs.send.desc->tail); > + CT_ERROR(ct, "G2H Space: %u\n", > + atomic_read(&ct->ctbs.recv.space) * 4); > + CT_ERROR(ct, "Head: %u\n", ct->ctbs.recv.desc->head); > + CT_ERROR(ct, "Tail: %u\n", ct->ctbs.recv.desc->tail); > + > ct->ctbs.send.broken = true; > } >