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drm/i915/guc: Fix Gen9 GuC loading workarounds 

In commit 4502e9ec82 ("drm/i915/uc: Unify firmware loading") we
stopped converting errors detected during firmware transfer into
-EAGAIN and this indirectly killed our workarounds for Gen9 GuC.
Reactivate those workarounds by looking for actual -ETIMEDOUT error.

Testcase: igt@drv_selftest@live_hangcheck
Reported-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
References: commit 4502e9ec82 ("drm/i915/uc: Unify firmware loading")

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181016085931.23532-1-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko 2018-10-16 08:59:30 +00:00 committed by Chris Wilson
parent 593a21a04f
commit ad52fcc97c
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_uc.c
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@ -376,7 +376,7 @@ int intel_uc_init_hw(struct drm_i915_private *i915)
intel_guc_init_params(guc);
ret = intel_guc_fw_upload(guc);
if (ret == 0 || ret != -EAGAIN)
if (ret == 0 || ret != -ETIMEDOUT)
break;
DRM_DEBUG_DRIVER("GuC fw load failed: %d; will reset and "