drm/i915: Add 'offset' to uncore funcs

Add 'u32 offset' to the uncore register access functions. For now
it's the same as 'reg', but once type safety gets added 'reg' will be
the type safe register variable and 'offset' the raw offset.

v2: s/uint32_t/u32/ (Chris)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1446839236-20035-1-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/intel_uncore.c

@@ -667,6 +667,7 @@ __gen2_read(64)
 #undef GEN2_READ_HEADER
 
 #define GEN6_READ_HEADER(x) \
+	u32 offset = reg; \
 	unsigned long irqflags; \
 	u##x val = 0; \
 	assert_device_not_suspended(dev_priv); \
@@ -706,7 +707,7 @@ static u##x \
 gen6_read##x(struct drm_i915_private *dev_priv, off_t reg, bool trace) { \
 	GEN6_READ_HEADER(x); \
 	hsw_unclaimed_reg_debug(dev_priv, reg, true, true); \
-	if (NEEDS_FORCE_WAKE(reg)) \
+	if (NEEDS_FORCE_WAKE(offset)) \
 		__force_wake_get(dev_priv, FORCEWAKE_RENDER); \
 	val = __raw_i915_read##x(dev_priv, reg); \
 	hsw_unclaimed_reg_debug(dev_priv, reg, true, false); \
@@ -718,11 +719,11 @@ static u##x \
 vlv_read##x(struct drm_i915_private *dev_priv, off_t reg, bool trace) { \
 	enum forcewake_domains fw_engine = 0; \
 	GEN6_READ_HEADER(x); \
-	if (!NEEDS_FORCE_WAKE(reg)) \
+	if (!NEEDS_FORCE_WAKE(offset)) \
 		fw_engine = 0; \
-	else if (FORCEWAKE_VLV_RENDER_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_VLV_RENDER_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER; \
-	else if (FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_VLV_MEDIA_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_MEDIA; \
 	if (fw_engine) \
 		__force_wake_get(dev_priv, fw_engine); \
@@ -735,13 +736,13 @@ static u##x \
 chv_read##x(struct drm_i915_private *dev_priv, off_t reg, bool trace) { \
 	enum forcewake_domains fw_engine = 0; \
 	GEN6_READ_HEADER(x); \
-	if (!NEEDS_FORCE_WAKE(reg)) \
+	if (!NEEDS_FORCE_WAKE(offset)) \
 		fw_engine = 0; \
-	else if (FORCEWAKE_CHV_RENDER_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_CHV_RENDER_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER; \
-	else if (FORCEWAKE_CHV_MEDIA_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_CHV_MEDIA_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_MEDIA; \
-	else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \
 	if (fw_engine) \
 		__force_wake_get(dev_priv, fw_engine); \
@@ -758,13 +759,13 @@ gen9_read##x(struct drm_i915_private *dev_priv, off_t reg, bool trace) { \
 	enum forcewake_domains fw_engine; \
 	GEN6_READ_HEADER(x); \
 	hsw_unclaimed_reg_debug(dev_priv, reg, true, true); \
-	if (!SKL_NEEDS_FORCE_WAKE(reg)) \
+	if (!SKL_NEEDS_FORCE_WAKE(offset)) \
 		fw_engine = 0; \
-	else if (FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER; \
-	else if (FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_MEDIA; \
-	else if (FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \
 	else \
 		fw_engine = FORCEWAKE_BLITTER; \
@@ -866,6 +867,7 @@ __gen2_write(64)
 #undef GEN2_WRITE_HEADER
 
 #define GEN6_WRITE_HEADER \
+	u32 offset = reg; \
 	unsigned long irqflags; \
 	trace_i915_reg_rw(true, reg, val, sizeof(val), trace); \
 	assert_device_not_suspended(dev_priv); \
@@ -879,7 +881,7 @@ static void \
 gen6_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace) { \
 	u32 __fifo_ret = 0; \
 	GEN6_WRITE_HEADER; \
-	if (NEEDS_FORCE_WAKE(reg)) { \
+	if (NEEDS_FORCE_WAKE(offset)) { \
 		__fifo_ret = __gen6_gt_wait_for_fifo(dev_priv); \
 	} \
 	__raw_i915_write##x(dev_priv, reg, val); \
@@ -894,7 +896,7 @@ static void \
 hsw_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace) { \
 	u32 __fifo_ret = 0; \
 	GEN6_WRITE_HEADER; \
-	if (NEEDS_FORCE_WAKE(reg)) { \
+	if (NEEDS_FORCE_WAKE(offset)) { \
 		__fifo_ret = __gen6_gt_wait_for_fifo(dev_priv); \
 	} \
 	hsw_unclaimed_reg_debug(dev_priv, reg, false, true); \
@@ -933,7 +935,7 @@ static void \
 gen8_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace) { \
 	GEN6_WRITE_HEADER; \
 	hsw_unclaimed_reg_debug(dev_priv, reg, false, true); \
-	if (NEEDS_FORCE_WAKE(reg) && !is_gen8_shadowed(dev_priv, reg)) \
+	if (NEEDS_FORCE_WAKE(offset) && !is_gen8_shadowed(dev_priv, reg)) \
 		__force_wake_get(dev_priv, FORCEWAKE_RENDER); \
 	__raw_i915_write##x(dev_priv, reg, val); \
 	hsw_unclaimed_reg_debug(dev_priv, reg, false, false); \
@@ -946,14 +948,14 @@ static void \
 chv_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, bool trace) { \
 	enum forcewake_domains fw_engine = 0; \
 	GEN6_WRITE_HEADER; \
-	if (!NEEDS_FORCE_WAKE(reg) || \
+	if (!NEEDS_FORCE_WAKE(offset) || \
 	    is_gen8_shadowed(dev_priv, reg)) \
 		fw_engine = 0; \
-	else if (FORCEWAKE_CHV_RENDER_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_CHV_RENDER_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER; \
-	else if (FORCEWAKE_CHV_MEDIA_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_CHV_MEDIA_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_MEDIA; \
-	else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_CHV_COMMON_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \
 	if (fw_engine) \
 		__force_wake_get(dev_priv, fw_engine); \
@@ -991,14 +993,14 @@ gen9_write##x(struct drm_i915_private *dev_priv, off_t reg, u##x val, \
 	enum forcewake_domains fw_engine; \
 	GEN6_WRITE_HEADER; \
 	hsw_unclaimed_reg_debug(dev_priv, reg, false, true); \
-	if (!SKL_NEEDS_FORCE_WAKE(reg) || \
+	if (!SKL_NEEDS_FORCE_WAKE(offset) || \
 	    is_gen9_shadowed(dev_priv, reg)) \
 		fw_engine = 0; \
-	else if (FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_GEN9_RENDER_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER; \
-	else if (FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_GEN9_MEDIA_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_MEDIA; \
-	else if (FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(reg)) \
+	else if (FORCEWAKE_GEN9_COMMON_RANGE_OFFSET(offset)) \
 		fw_engine = FORCEWAKE_RENDER | FORCEWAKE_MEDIA; \
 	else \
 		fw_engine = FORCEWAKE_BLITTER; \