drm/i915/aux: add separate register macros and functions for VLV/CHV

Add separate macros for VLV/CHV registers without the implicit dev_priv,
and with the display MMIO base baked in.

A number of implicitly used dev_priv local variables can be removed.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231011201533.1081368-1-jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_dp_aux.c

@@ -531,9 +531,40 @@ intel_dp_aux_transfer(struct drm_dp_aux *aux, struct drm_dp_aux_msg *msg)
 	return ret;
 }
 
+static i915_reg_t vlv_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	enum aux_ch aux_ch = dig_port->aux_ch;
+
+	switch (aux_ch) {
+	case AUX_CH_B:
+	case AUX_CH_C:
+	case AUX_CH_D:
+		return VLV_DP_AUX_CH_CTL(aux_ch);
+	default:
+		MISSING_CASE(aux_ch);
+		return VLV_DP_AUX_CH_CTL(AUX_CH_B);
+	}
+}
+
+static i915_reg_t vlv_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	enum aux_ch aux_ch = dig_port->aux_ch;
+
+	switch (aux_ch) {
+	case AUX_CH_B:
+	case AUX_CH_C:
+	case AUX_CH_D:
+		return VLV_DP_AUX_CH_DATA(aux_ch, index);
+	default:
+		MISSING_CASE(aux_ch);
+		return VLV_DP_AUX_CH_DATA(AUX_CH_B, index);
+	}
+}
+
 static i915_reg_t g4x_aux_ctl_reg(struct intel_dp *intel_dp)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -550,7 +581,6 @@ static i915_reg_t g4x_aux_ctl_reg(struct intel_dp *intel_dp)
 
 static i915_reg_t g4x_aux_data_reg(struct intel_dp *intel_dp, int index)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -567,7 +597,6 @@ static i915_reg_t g4x_aux_data_reg(struct intel_dp *intel_dp, int index)
 
 static i915_reg_t ilk_aux_ctl_reg(struct intel_dp *intel_dp)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -586,7 +615,6 @@ static i915_reg_t ilk_aux_ctl_reg(struct intel_dp *intel_dp)
 
 static i915_reg_t ilk_aux_data_reg(struct intel_dp *intel_dp, int index)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -605,7 +633,6 @@ static i915_reg_t ilk_aux_data_reg(struct intel_dp *intel_dp, int index)
 
 static i915_reg_t skl_aux_ctl_reg(struct intel_dp *intel_dp)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -625,7 +652,6 @@ static i915_reg_t skl_aux_ctl_reg(struct intel_dp *intel_dp)
 
 static i915_reg_t skl_aux_data_reg(struct intel_dp *intel_dp, int index)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -645,7 +671,6 @@ static i915_reg_t skl_aux_data_reg(struct intel_dp *intel_dp, int index)
 
 static i915_reg_t tgl_aux_ctl_reg(struct intel_dp *intel_dp)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -668,7 +693,6 @@ static i915_reg_t tgl_aux_ctl_reg(struct intel_dp *intel_dp)
 
 static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index)
 {
-	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
@@ -757,6 +781,9 @@ void intel_dp_aux_init(struct intel_dp *intel_dp)
 	} else if (HAS_PCH_SPLIT(dev_priv)) {
 		intel_dp->aux_ch_ctl_reg = ilk_aux_ctl_reg;
 		intel_dp->aux_ch_data_reg = ilk_aux_data_reg;
+	} else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
+		intel_dp->aux_ch_ctl_reg = vlv_aux_ctl_reg;
+		intel_dp->aux_ch_data_reg = vlv_aux_data_reg;
 	} else {
 		intel_dp->aux_ch_ctl_reg = g4x_aux_ctl_reg;
 		intel_dp->aux_ch_data_reg = g4x_aux_data_reg;

drivers/gpu/drm/i915/display/intel_dp_aux_regs.h

@@ -21,13 +21,14 @@
 #define __xe2lpd_aux_ch_idx(aux_ch)						\
 	(aux_ch >= AUX_CH_USBC1 ? aux_ch : AUX_CH_USBC4 + 1 + (aux_ch) - AUX_CH_A)
 
-/* TODO: Remove implicit dev_priv */
-#define _DPA_AUX_CH_CTL			(DISPLAY_MMIO_BASE(dev_priv) + 0x64010)
-#define _DPB_AUX_CH_CTL			(DISPLAY_MMIO_BASE(dev_priv) + 0x64110)
+#define _DPA_AUX_CH_CTL			0x64010
+#define _DPB_AUX_CH_CTL			0x64110
 #define _XELPDP_USBC1_AUX_CH_CTL	0x16f210
 #define _XELPDP_USBC2_AUX_CH_CTL	0x16f410
 #define DP_AUX_CH_CTL(aux_ch)		_MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL,	\
 						   _DPB_AUX_CH_CTL)
+#define VLV_DP_AUX_CH_CTL(aux_ch)	_MMIO(VLV_DISPLAY_BASE + \
+					      _PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL))
 #define _XELPDP_DP_AUX_CH_CTL(aux_ch)						\
 		_MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1,			\
 					 _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL,	\
@@ -69,13 +70,14 @@
 #define   DP_AUX_CH_CTL_SYNC_PULSE_SKL_MASK	REG_GENMASK(4, 0) /* skl+ */
 #define   DP_AUX_CH_CTL_SYNC_PULSE_SKL(c)	REG_FIELD_PREP(DP_AUX_CH_CTL_SYNC_PULSE_SKL_MASK, (c) - 1)
 
-/* TODO: Remove implicit dev_priv */
-#define _DPA_AUX_CH_DATA1		(DISPLAY_MMIO_BASE(dev_priv) + 0x64014)
-#define _DPB_AUX_CH_DATA1		(DISPLAY_MMIO_BASE(dev_priv) + 0x64114)
+#define _DPA_AUX_CH_DATA1		0x64014
+#define _DPB_AUX_CH_DATA1		0x64114
 #define _XELPDP_USBC1_AUX_CH_DATA1	0x16f214
 #define _XELPDP_USBC2_AUX_CH_DATA1	0x16f414
 #define DP_AUX_CH_DATA(aux_ch, i)	_MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1,	\
 						    _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
+#define VLV_DP_AUX_CH_DATA(aux_ch, i)	_MMIO(VLV_DISPLAY_BASE + _PORT(aux_ch, _DPA_AUX_CH_DATA1, \
+								       _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
 #define _XELPDP_DP_AUX_CH_DATA(aux_ch, i)					\
 		_MMIO(_PICK_EVEN_2RANGES(aux_ch, AUX_CH_USBC1,			\
 					 _DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1,	\

drivers/gpu/drm/i915/gvt/handlers.c

@@ -2576,7 +2576,6 @@ static int init_bdw_mmio_info(struct intel_gvt *gvt)
 
 static int init_skl_mmio_info(struct intel_gvt *gvt)
 {
-	struct drm_i915_private *dev_priv = gvt->gt->i915;
 	int ret;
 
 	MMIO_DH(FORCEWAKE_RENDER_GEN9, D_SKL_PLUS, NULL, mul_force_wake_write);