drm/i915: Add LO/HI PRIVATE_PAT registers

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/i915_gem_gtt.c

@@ -2889,8 +2889,8 @@ static void bdw_setup_private_ppat(struct drm_i915_private *dev_priv)
 
 	/* XXX: spec defines this as 2 distinct registers. It's unclear if a 64b
 	 * write would work. */
-	I915_WRITE(GEN8_PRIVATE_PAT, pat);
-	I915_WRITE(GEN8_PRIVATE_PAT + 4, pat >> 32);
+	I915_WRITE(GEN8_PRIVATE_PAT_LO, pat);
+	I915_WRITE(GEN8_PRIVATE_PAT_HI, pat >> 32);
 }
 
 static void chv_setup_private_ppat(struct drm_i915_private *dev_priv)
@@ -2924,8 +2924,8 @@ static void chv_setup_private_ppat(struct drm_i915_private *dev_priv)
 	      GEN8_PPAT(6, CHV_PPAT_SNOOP) |
 	      GEN8_PPAT(7, CHV_PPAT_SNOOP);
 
-	I915_WRITE(GEN8_PRIVATE_PAT, pat);
-	I915_WRITE(GEN8_PRIVATE_PAT + 4, pat >> 32);
+	I915_WRITE(GEN8_PRIVATE_PAT_LO, pat);
+	I915_WRITE(GEN8_PRIVATE_PAT_HI, pat >> 32);
 }
 
 static int gen8_gmch_probe(struct drm_device *dev,

drivers/gpu/drm/i915/i915_reg.h

@@ -1551,7 +1551,8 @@ enum skl_disp_power_wells {
 #define   RING_FAULT_FAULT_TYPE(x) ((x >> 1) & 0x3)
 #define   RING_FAULT_VALID	(1<<0)
 #define DONE_REG		0x40b0
-#define GEN8_PRIVATE_PAT	0x40e0
+#define GEN8_PRIVATE_PAT_LO	0x40e0
+#define GEN8_PRIVATE_PAT_HI	(0x40e0 + 4)
 #define BSD_HWS_PGA_GEN7	(0x04180)
 #define BLT_HWS_PGA_GEN7	(0x04280)
 #define VEBOX_HWS_PGA_GEN7	(0x04380)