diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reset.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reset.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_reset.c b/drivers/gpu/drm/i915/i915_reset.c index 8ce819bbd8ff..bc5f9c69895e 100644 --- a/drivers/gpu/drm/i915/i915_reset.c +++ b/drivers/gpu/drm/i915/i915_reset.c @@ -495,7 +495,17 @@ static int gen8_engine_reset_prepare(struct intel_engine_cs *engine) int ret; ack = intel_uncore_read_fw(uncore, reg); - if (!(ack & RESET_CTL_READY_TO_RESET)) { + if (ack & RESET_CTL_CAT_ERROR) { + /* + * For catastrophic errors, ready-for-reset sequence + * needs to be bypassed: HAS#396813 + */ + request = RESET_CTL_CAT_ERROR; + mask = RESET_CTL_CAT_ERROR; + + /* Catastrophic errors need to be cleared by HW */ + ack = 0; + } else if (!(ack & RESET_CTL_READY_TO_RESET)) { request = RESET_CTL_REQUEST_RESET; mask = RESET_CTL_READY_TO_RESET; ack = RESET_CTL_READY_TO_RESET; |