Return error when I915_EXEC_BSD_RING2 flag is set but BSD2 ring
is not available in the HW.
v2: Reworked
Signed-off-by: Gabriel Feceoru <gabriel.feceoru@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 8fd00d2..9fbd023 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1394,6 +1394,13 @@ eb_select_ring(struct drm_i915_private *dev_priv,
return -EINVAL;
}
+ if ((user_ring_id == I915_EXEC_BSD) && !HAS_BSD2(dev_priv) &&
+ ((args->flags & I915_EXEC_BSD_MASK) != 0)) {
+ DRM_DEBUG("execbuf with bsd ring but with invalid "
+ "bsd dispatch flags: %d\n", (int)(args->flags));
+ return -EINVAL;
+ }
+
if (user_ring_id == I915_EXEC_BSD && HAS_BSD2(dev_priv)) {
unsigned int bsd_idx = args->flags & I915_EXEC_BSD_MASK;
--
1.9.1
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