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drm/i915: Fix I915_EXEC_RING_MASK

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commit d90c06d570 upstream.

This was supposed to be a mask of all known rings, but it is being used
by execbuffer to filter out invalid rings, and so is instead mapping high
unused values onto valid rings. Instead of a mask of all known rings,
we need it to be the mask of all possible rings.

Fixes: 549f736582 ("drm/i915: Enable SandyBridge blitter ring")
Fixes: de1add3605 ("drm/i915: Decouple execbuf uAPI from internal implementation")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: <stable@vger.kernel.org> # v4.6+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190301140404.26690-21-chris@chris-wilson.co.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chris Wilson 2019-03-01 14:03:47 +00:00 committed by Greg Kroah-Hartman
parent f3dcc88d53
commit 554f425370
1 changed files with 1 additions and 1 deletions
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2
include/uapi/drm/i915_drm.h
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@ -942,7 +942,7 @@ struct drm_i915_gem_execbuffer2 {
* struct drm_i915_gem_exec_fence *fences.
*/
__u64 cliprects_ptr;
#define I915_EXEC_RING_MASK (7<<0)
#define I915_EXEC_RING_MASK (0x3f)
#define I915_EXEC_DEFAULT (0<<0)
#define I915_EXEC_RENDER (1<<0)
#define I915_EXEC_BSD (2<<0)