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authorZhao Yakui <yakui.zhao@intel.com>2014-04-17 10:37:36 +0800
committerDaniel Vetter <daniel.vetter@ffwll.ch>2014-05-05 09:08:44 +0200
commitb1a93306ed2686a7064ed54f99203b6db852ca27 (patch)
tree3f572cc008c20b6bb9ab0d43a47b631aaec0e9f6 /drivers/gpu/drm/i915/intel_ringbuffer.h
parentfd3c269f8ff940cc0fbb3b7f7e84c0572f6f759a (diff)
drm/i915: Update the restrict check to filter out wrong Ring ID passed by user-space
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com> Reviewed-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.h')
-rw-r--r--drivers/gpu/drm/i915/intel_ringbuffer.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 54839165eb6d..7c0eb33d5027 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -63,6 +63,7 @@ struct intel_ring_buffer {
VECS,
} id;
#define I915_NUM_RINGS 4
+#define LAST_USER_RING (VECS + 1)
u32 mmio_base;
void __iomem *virtual_start;
struct drm_device *dev;