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drm/i915/guc: fix comment about fallback to execlists

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We stopped supporting fallback to execlists in commit 121981fafe
(drm/i915/guc: Combine enable_guc_loading|submission modparams). We
do instead reset and retry in some cases, depending on the workarounds
required by the platform.

Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181022230427.5616-4-daniele.ceraolospurio@intel.com
This commit is contained in:
Daniele Ceraolo Spurio 2018-10-22 16:04:25 -07:00 committed by Chris Wilson
parent fb0c37f670
commit caef29cd07
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/intel_guc_fw.c
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@ -217,8 +217,8 @@ static int guc_wait_ucode(struct intel_guc *guc)
* NB: Docs recommend not using the interrupt for completion.
* Measurements indicate this should take no more than 20ms, so a
* timeout here indicates that the GuC has failed and is unusable.
* (Higher levels of the driver will attempt to fall back to
* execlist mode if this happens.)
* (Higher levels of the driver may decide to reset the GuC and
* attempt the ucode load again if this happens.)
*/
ret = wait_for(guc_ready(guc, &status), 100);
DRM_DEBUG_DRIVER("GuC status %#x\n", status);