drm/i915: add I915_EXEC_VEBOX to i915_gem_do_execbuffer()

A user can run batchbuffer via VEBOX ring.

Signed-off-by: Xiang, Haihao <haihao.xiang@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

2 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 117ce3813681..a8bb62ca8756 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -885,6 +885,15 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
                         return -EPERM;
                 }
                 break;
+        case I915_EXEC_VEBOX:
+                ring = &dev_priv->ring[VECS];
+                if (ctx_id != 0) {
+                        DRM_DEBUG("Ring %s doesn't support contexts\n",
+                                  ring->name);
+                        return -EPERM;
+                }
+                break;
+
         default:
                 DRM_DEBUG("execbuf with unknown ring: %d\n",
                           (int)(args->flags & I915_EXEC_RING_MASK));
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index 07d59419fe6b..81b99817198e 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -660,6 +660,7 @@ struct drm_i915_gem_execbuffer2 {
 #define I915_EXEC_RENDER                 (1<<0)
 #define I915_EXEC_BSD                    (2<<0)
 #define I915_EXEC_BLT                    (3<<0)
+#define I915_EXEC_VEBOX                  (4<<0)
 
 /* Used for switching the constants addressing mode on gen4+ RENDER ring.
  * Gen6+ only supports relative addressing to dynamic state (default) and