drm/i915: Give names to more ring registers

The logical render context population has a bunch of raw ring register
offsets. Use the names we have for them, and in cases where we we don't,
give them names.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446672017-24497-23-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b24d02f..fd81067 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1653,8 +1653,16 @@
 #define HWSTAM		0x02098
 #define DMA_FADD_I8XX	0x020d0
 #define RING_BBSTATE(base)	((base)+0x110)
+#define   RING_BB_PPGTT		(1 << 5)
+#define RING_SBBADDR(base)	((base)+0x114) /* hsw+ */
+#define RING_SBBSTATE(base)	((base)+0x118) /* hsw+ */
+#define RING_SBBADDR_UDW(base)	((base)+0x11c) /* gen8+ */
 #define RING_BBADDR(base)	((base)+0x140)
 #define RING_BBADDR_UDW(base)	((base)+0x168) /* gen8+ */
+#define RING_BB_PER_CTX_PTR(base)	((base)+0x1c0) /* gen8+ */
+#define RING_INDIRECT_CTX(base)		((base)+0x1c4) /* gen8+ */
+#define RING_INDIRECT_CTX_OFFSET(base)	((base)+0x1c8) /* gen8+ */
+#define RING_CTX_TIMESTAMP(base)	((base)+0x3a8) /* gen8+ */
 
 #define ERROR_GEN6	0x040a0
 #define GEN7_ERR_INT	0x44040