[Intel-gfx] drm/i915/hsw/bdw: Enable resource streamer v2

[Abdiel Janulgue]

Changes since initial posting:

- Don't split the conversion from args->flags to ring from its
  subsequent EINVAL check (Chris Wilson <chris at chris-wilson.co.uk>)
- Execlists support (Minu Mathai <minu.mathai at intel.com>)

--
Abdiel Janulgue (2):
      drm/i915/hsw/bdw: Expose I915_EXEC_RESOURCE_STREAMER flag
      drm/i915/hsw/bdw: Enable resource streamer bits on MI_BATCH_BUFFER_START

 drivers/gpu/drm/i915/i915_gem_execbuffer.c | 15 +++++++++++++++
 drivers/gpu/drm/i915/i915_reg.h            |  1 +
 drivers/gpu/drm/i915/intel_lrc.c           |  3 ++-
 drivers/gpu/drm/i915/intel_ringbuffer.c    |  6 ++++--
 drivers/gpu/drm/i915/intel_ringbuffer.h    |  1 +
 include/uapi/drm/i915_drm.h                |  7 ++++++-
 6 files changed, 29 insertions(+), 4 deletions(-)