diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_guc_loader.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_guc_loader.c | 40 |
1 files changed, 19 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c index d84c5608f068..876e5da44c4e 100644 --- a/drivers/gpu/drm/i915/intel_guc_loader.c +++ b/drivers/gpu/drm/i915/intel_guc_loader.c @@ -387,7 +387,7 @@ int intel_guc_ucode_load(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_guc_fw *guc_fw = &dev_priv->guc.guc_fw; - int err = 0; + int retries, err = 0; if (!i915.enable_guc_submission) return 0; @@ -441,29 +441,26 @@ int intel_guc_ucode_load(struct drm_device *dev) * steppings also so this is extended as well. */ /* WaEnableGuCBootHashCheckNotSet:skl,bxt */ - err = guc_ucode_xfer(dev_priv); - if (err) { - int retries = 3; - - DRM_ERROR("GuC fw load failed, err=%d, attempting reset and retry\n", err); - - while (retries--) { - err = i915_reset_guc(dev_priv); - if (err) - break; - - err = guc_ucode_xfer(dev_priv); - if (!err) { - DRM_DEBUG_DRIVER("GuC fw reload succeeded after reset\n"); - break; - } - DRM_DEBUG_DRIVER("GuC fw reload retries left: %d\n", retries); - } - + for (retries = 3; ; ) { + /* + * Always reset the GuC just before (re)loading, so + * that the state and timing are fairly predictable + */ + err = i915_reset_guc(dev_priv); if (err) { - DRM_ERROR("GuC fw reload attempt failed, ret=%d\n", err); + DRM_ERROR("GuC reset failed, err %d\n", err); goto fail; } + + err = guc_ucode_xfer(dev_priv); + if (!err) + break; + + if (--retries == 0) + goto fail; + + DRM_INFO("GuC fw load failed, err %d; will reset and " + "retry %d more time(s)\n", err, retries); } guc_fw->guc_fw_load_status = GUC_FIRMWARE_SUCCESS; @@ -485,6 +482,7 @@ int intel_guc_ucode_load(struct drm_device *dev) return 0; fail: + DRM_ERROR("GuC firmware load failed, err %d\n", err); if (guc_fw->guc_fw_load_status == GUC_FIRMWARE_PENDING) guc_fw->guc_fw_load_status = GUC_FIRMWARE_FAIL; |