6b332fa20f
Due to timing issues in the HW, some of the status bits required for GuC authentication occasionally don't get set; when that happens, the GuC cannot be initialized and we will be left with a wedged GPU. The W/A suggested is to perform a soft reset of the GuC and attempt to reload the F/W again for few times before giving up. As the failure is dependent on timing, tests performed by triggering manual full gpu reset (i915_wedged) showed that we could sometimes hit this after several thousand iterations, but sometimes tests ran even longer without any issues. Reset and reload mechanism proved helpful when we indeed hit f/w load failure, so it is better to include this to improve driver stability. This change implements the following WAs, WaEnableuKernelHeaderValidFix:skl,bxt WaEnableGuCBootHashCheckNotSet:skl,bxt Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com> Signed-off-by: Dave Gordon <david.s.gordon@intel.com> Reviewed-by: Alex Dai <yu.dai@intel.com> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> |
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| drm | ||
| host1x | ||
| ipu-v3 | ||
| vga | ||
| Makefile | ||