On 6/24/2021 00:04, Matthew Brost wrote:
Update the bonding extension to return -ENODEV when using GuC submission
as this extension fundamentally will not work with the GuC submission
interface.
Signed-off-by: Matthew Brost <matthew.brost@xxxxxxxxx>
Reviewed-by: John Harrison <John.C.Harrison@xxxxxxxxx>
---
drivers/gpu/drm/i915/gem/i915_gem_context.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 8a9293e0ca92..0429aa4172bf 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -1674,6 +1674,11 @@ set_engines__bond(struct i915_user_extension __user *base, void *data)
}
virtual = set->engines->engines[idx]->engine;
+ if (intel_engine_uses_guc(virtual)) {
+ DRM_DEBUG("bonding extension not supported with GuC submission");
+ return -ENODEV;
+ }
+
err = check_user_mbz(&ext->flags);
if (err)
return err;
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