Both error-capture and relay-logging mechanism use the GuC log infrastructure. That means the KMD must send a log flush complete notification back to GuC after reading the data out. This call is currently being sent synchronously. However, synchronous H2Gs cause problems when the system is backed up. There is no need for this to be synchronous. The KMD wasn't even looking at the return status from it. So make it asynchronous and then there is no issue about time outs. Signed-off-by: Alan Previn <alan.previn.teres.alexis@xxxxxxxxx> --- drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c | 3 ++- drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c index 97a32e610c30..ffcd7a35f8df 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c @@ -1261,7 +1261,8 @@ static int __guc_capture_flushlog_complete(struct intel_guc *guc) GUC_CAPTURE_LOG_BUFFER }; - return intel_guc_send(guc, action, ARRAY_SIZE(action)); + return intel_guc_send_nb(guc, action, ARRAY_SIZE(action), 0); + } static void __guc_capture_process_output(struct intel_guc *guc) diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c index 02311ad90264..25b2d7ce6640 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_log.c @@ -31,7 +31,7 @@ static int guc_action_flush_log_complete(struct intel_guc *guc) GUC_DEBUG_LOG_BUFFER }; - return intel_guc_send(guc, action, ARRAY_SIZE(action)); + return intel_guc_send_nb(guc, action, ARRAY_SIZE(action), 0); } static int guc_action_flush_log(struct intel_guc *guc) -- 2.25.1
