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>

drivers/gpu/drm/i915/i915_reg.h

@@ -1653,8 +1653,16 @@ enum skl_disp_power_wells {
 #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

drivers/gpu/drm/i915/intel_lrc.c

@@ -2261,24 +2261,24 @@ populate_lr_context(struct intel_context *ctx, struct drm_i915_gem_object *ctx_o
 	reg_state[CTX_RING_BUFFER_CONTROL] = RING_CTL(ring->mmio_base);
 	reg_state[CTX_RING_BUFFER_CONTROL+1] =
 			((ringbuf->size - PAGE_SIZE) & RING_NR_PAGES) | RING_VALID;
-	reg_state[CTX_BB_HEAD_U] = ring->mmio_base + 0x168;
+	reg_state[CTX_BB_HEAD_U] = RING_BBADDR_UDW(ring->mmio_base);
 	reg_state[CTX_BB_HEAD_U+1] = 0;
-	reg_state[CTX_BB_HEAD_L] = ring->mmio_base + 0x140;
+	reg_state[CTX_BB_HEAD_L] = RING_BBADDR(ring->mmio_base);
 	reg_state[CTX_BB_HEAD_L+1] = 0;
-	reg_state[CTX_BB_STATE] = ring->mmio_base + 0x110;
-	reg_state[CTX_BB_STATE+1] = (1<<5);
-	reg_state[CTX_SECOND_BB_HEAD_U] = ring->mmio_base + 0x11c;
+	reg_state[CTX_BB_STATE] = RING_BBSTATE(ring->mmio_base);
+	reg_state[CTX_BB_STATE+1] = RING_BB_PPGTT;
+	reg_state[CTX_SECOND_BB_HEAD_U] = RING_SBBADDR_UDW(ring->mmio_base);
 	reg_state[CTX_SECOND_BB_HEAD_U+1] = 0;
-	reg_state[CTX_SECOND_BB_HEAD_L] = ring->mmio_base + 0x114;
+	reg_state[CTX_SECOND_BB_HEAD_L] = RING_SBBADDR(ring->mmio_base);
 	reg_state[CTX_SECOND_BB_HEAD_L+1] = 0;
-	reg_state[CTX_SECOND_BB_STATE] = ring->mmio_base + 0x118;
+	reg_state[CTX_SECOND_BB_STATE] = RING_SBBSTATE(ring->mmio_base);
 	reg_state[CTX_SECOND_BB_STATE+1] = 0;
 	if (ring->id == RCS) {
-		reg_state[CTX_BB_PER_CTX_PTR] = ring->mmio_base + 0x1c0;
+		reg_state[CTX_BB_PER_CTX_PTR] = RING_BB_PER_CTX_PTR(ring->mmio_base);
 		reg_state[CTX_BB_PER_CTX_PTR+1] = 0;
-		reg_state[CTX_RCS_INDIRECT_CTX] = ring->mmio_base + 0x1c4;
+		reg_state[CTX_RCS_INDIRECT_CTX] = RING_INDIRECT_CTX(ring->mmio_base);
 		reg_state[CTX_RCS_INDIRECT_CTX+1] = 0;
-		reg_state[CTX_RCS_INDIRECT_CTX_OFFSET] = ring->mmio_base + 0x1c8;
+		reg_state[CTX_RCS_INDIRECT_CTX_OFFSET] = RING_INDIRECT_CTX_OFFSET(ring->mmio_base);
 		reg_state[CTX_RCS_INDIRECT_CTX_OFFSET+1] = 0;
 		if (ring->wa_ctx.obj) {
 			struct i915_ctx_workarounds *wa_ctx = &ring->wa_ctx;
@@ -2298,7 +2298,7 @@ populate_lr_context(struct intel_context *ctx, struct drm_i915_gem_object *ctx_o
 	}
 	reg_state[CTX_LRI_HEADER_1] = MI_LOAD_REGISTER_IMM(9);
 	reg_state[CTX_LRI_HEADER_1] |= MI_LRI_FORCE_POSTED;
-	reg_state[CTX_CTX_TIMESTAMP] = ring->mmio_base + 0x3a8;
+	reg_state[CTX_CTX_TIMESTAMP] = RING_CTX_TIMESTAMP(ring->mmio_base);
 	reg_state[CTX_CTX_TIMESTAMP+1] = 0;
 	reg_state[CTX_PDP3_UDW] = GEN8_RING_PDP_UDW(ring, 3);
 	reg_state[CTX_PDP3_LDW] = GEN8_RING_PDP_LDW(ring, 3);