diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 8dee9e62a73e..7894447c2858 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -2748,14 +2748,25 @@ static void driver_initiated_flr(struct intel_uncore *uncore) /* Trigger the actual Driver-FLR */ intel_uncore_rmw_fw(uncore, GU_CNTL, 0, DRIVERFLR); + /* Wait for hardware teardown to complete */ + ret = intel_wait_for_register_fw(uncore, GU_CNTL, + DRIVERFLR, 0, + flr_timeout_ms); + if (ret) { + drm_err(&i915->drm, "Driver-FLR-teardown wait completion failed! %d\n", ret); + return; + } + + /* Wait for hardware/firmware re-init to complete */ ret = intel_wait_for_register_fw(uncore, GU_DEBUG, DRIVERFLR_STATUS, DRIVERFLR_STATUS, flr_timeout_ms); if (ret) { - drm_err(&i915->drm, "wait for Driver-FLR completion failed! %d\n", ret); + drm_err(&i915->drm, "Driver-FLR-reinit wait completion failed! %d\n", ret); return; } + /* Clear sticky completion status */ intel_uncore_write_fw(uncore, GU_DEBUG, DRIVERFLR_STATUS); } |