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[1/2] drm/i915/guc: Fix Gen9 GuC loading workarounds

Message ID 20181016085931.23532-1-michal.wajdeczko@intel.com (mailing list archive)
State New, archived
Headers show
Series [1/2] drm/i915/guc: Fix Gen9 GuC loading workarounds | expand

Commit Message

Michal Wajdeczko Oct. 16, 2018, 8:59 a.m. UTC
In commit 4502e9ec820d ("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 4502e9ec820d ("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>
---
 drivers/gpu/drm/i915/intel_uc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Daniele Ceraolo Spurio Oct. 16, 2018, 11:03 p.m. UTC | #1
On 16/10/18 01:59, Michal Wajdeczko wrote:
> In commit 4502e9ec820d ("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 4502e9ec820d ("drm/i915/uc: Unify firmware loading")

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>

> 
> 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>
> ---
>   drivers/gpu/drm/i915/intel_uc.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
> index b1b3e81..b34c318 100644
> --- a/drivers/gpu/drm/i915/intel_uc.c
> +++ b/drivers/gpu/drm/i915/intel_uc.c
> @@ -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 "
>
Chris Wilson Oct. 17, 2018, 8:09 a.m. UTC | #2
Quoting Daniele Ceraolo Spurio (2018-10-17 00:03:38)
> 
> 
> On 16/10/18 01:59, Michal Wajdeczko wrote:
> > In commit 4502e9ec820d ("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 4502e9ec820d ("drm/i915/uc: Unify firmware loading")
> 
> Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>

Thanks for the fix and review, pushed.
-Chris
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index b1b3e81..b34c318 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -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 "