drm/i915: ring w/a gen 9 revision definitions

Add Skylake stepping Revision IDs definitions.

v1: Use existing revision id.

Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
[danvet: Use magic __I915__ and bikeshed #defines as suggested by
Damien.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index ddfa701d1b9f..217845951b7f 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2339,6 +2339,7 @@ struct drm_i915_cmd_table {
 })
 #define INTEL_INFO(p)   (&__I915__(p)->info)
 #define INTEL_DEVID(p)  (INTEL_INFO(p)->device_id)
+#define INTEL_REVID(p)  (__I915__(p)->dev->pdev->revision)
 
 #define IS_I830(dev)            (INTEL_DEVID(dev) == 0x3577)
 #define IS_845G(dev)            (INTEL_DEVID(dev) == 0x2562)
@@ -2387,6 +2388,11 @@ struct drm_i915_cmd_table {
                                  INTEL_DEVID(dev) == 0x0A1E)
 #define IS_PRELIMINARY_HW(intel_info) ((intel_info)->is_preliminary)
 
+#define SKL_REVID_A0            (0x0)
+#define SKL_REVID_B0            (0x1)
+#define SKL_REVID_C0            (0x2)
+#define SKL_REVID_D0            (0x3)
+
 /*
  * The genX designation typically refers to the render engine, so render
  * capability related checks should use IS_GEN, while display and other checks