drm/i915: Enable SandyBridge blitter ring

Based on an original patch by Zhenyu Wang, this initializes the BLT ring for
SandyBridge and enables support for user execbuffers.

Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 5 insertions, 1 deletions

diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index e41c74facb6a..8c641bed9bbd 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -286,6 +286,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_PAGEFLIPPING      8
 #define I915_PARAM_HAS_EXECBUF2          9
 #define I915_PARAM_HAS_BSD               10
+#define I915_PARAM_HAS_BLT               11
 
 typedef struct drm_i915_getparam {
         int param;
@@ -627,8 +628,11 @@ struct drm_i915_gem_execbuffer2 {
         __u32 num_cliprects;
         /** This is a struct drm_clip_rect *cliprects */
         __u64 cliprects_ptr;
+#define I915_EXEC_RING_MASK              (7<<0)
+#define I915_EXEC_DEFAULT                (0<<0)
 #define I915_EXEC_RENDER                 (1<<0)
-#define I915_EXEC_BSD                    (1<<1)
+#define I915_EXEC_BSD                    (2<<0)
+#define I915_EXEC_BLT                    (3<<0)
         __u64 flags;
         __u64 rsvd1;
         __u64 rsvd2;