i915.enable_guc_loading/submission=2 forces the usage of GuC.
For platforms that do not have a GuC, asking the kernel to
use a GuC should not result in an error state. Do extra checks
to see if the platform even has a GuC or not, regardless of the
kernel parameter.
Cc: Zanoni Paulo <paulo.r.zanoni@xxxxxxxxx>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_guc_loader.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index 7ace96b..15d2d53 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -717,13 +717,16 @@ void intel_guc_init(struct drm_device *dev)
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_guc_fw *guc_fw = &dev_priv->guc.guc_fw;
const char *fw_path;
-
+ if (!HAS_GUC(dev)) {
+ i915.enable_guc_loading = 0;
+ i915.enable_guc_submission = 0;
+ } else {
/* A negative value means "use platform default" */
- if (i915.enable_guc_loading < 0)
- i915.enable_guc_loading = HAS_GUC_UCODE(dev);
- if (i915.enable_guc_submission < 0)
- i915.enable_guc_submission = HAS_GUC_SCHED(dev);
-
+ if (i915.enable_guc_loading < 0)
+ i915.enable_guc_loading = HAS_GUC_UCODE(dev);
+ if (i915.enable_guc_submission < 0)
+ i915.enable_guc_submission = HAS_GUC_SCHED(dev);
+ }
if (!HAS_GUC_UCODE(dev)) {
fw_path = NULL;
} else if (IS_SKYLAKE(dev)) {
--
2.7.4
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