drm/i915/bdw: GEN-specific logical ring emit request

Very similar to the legacy add_request, only modified to account for
logical ringbuffer.

v2: Use MI_GLOBAL_GTT, as suggested by Brad Volkin.

v3: Unify render and non-render in the same function, as noticed by
Brad Volkin.

Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 81bad364e36d..467885159a80 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -216,6 +216,9 @@ struct  intel_engine_cs {
                                   unsigned int num_dwords);
         } semaphore;
 
+        /* Execlists */
+        int             (*emit_request)(struct intel_ringbuffer *ringbuf);
+
         /**
          * List of objects currently involved in rendering from the
          * ringbuffer.