drm/amd/display: Add DCN3 DCCG

Add programming of the DCCG (Display Controller Clock Generator)
block:

HW Blocks:

    +--------+       +--------+
    |  DIO   |       |  DCCG  |
    +--------+       +--------+

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dccg.h

@@ -76,18 +76,40 @@
 	type REFCLK_CLOCK_EN;\
 	type REFCLK_SRC_SEL;
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+#define DCCG3_REG_FIELD_LIST(type) \
+	type PHYASYMCLK_FORCE_EN;\
+	type PHYASYMCLK_FORCE_SRC_SEL;\
+	type PHYBSYMCLK_FORCE_EN;\
+	type PHYBSYMCLK_FORCE_SRC_SEL;\
+	type PHYCSYMCLK_FORCE_EN;\
+	type PHYCSYMCLK_FORCE_SRC_SEL;
+#endif
+
 struct dccg_shift {
 	DCCG_REG_FIELD_LIST(uint8_t)
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	DCCG3_REG_FIELD_LIST(uint8_t)
+#endif
 };
 
 struct dccg_mask {
 	DCCG_REG_FIELD_LIST(uint32_t)
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	DCCG3_REG_FIELD_LIST(uint32_t)
+#endif
 };
 
 struct dccg_registers {
 	uint32_t DPPCLK_DTO_CTRL;
 	uint32_t DPPCLK_DTO_PARAM[6];
 	uint32_t REFCLK_CNTL;
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+	uint32_t HDMICHARCLK_CLOCK_CNTL[6];
+	uint32_t PHYASYMCLK_CLOCK_CNTL;
+	uint32_t PHYBSYMCLK_CLOCK_CNTL;
+	uint32_t PHYCSYMCLK_CLOCK_CNTL;
+#endif
 };
 
 struct dcn_dccg {

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dccg.c

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#include "reg_helper.h"
+#include "core_types.h"
+#include "dcn30_dccg.h"
+
+#define TO_DCN_DCCG(dccg)\
+	container_of(dccg, struct dcn_dccg, base)
+
+#define REG(reg) \
+	(dccg_dcn->regs->reg)
+
+#undef FN
+#define FN(reg_name, field_name) \
+	dccg_dcn->dccg_shift->field_name, dccg_dcn->dccg_mask->field_name
+
+#define CTX \
+	dccg_dcn->base.ctx
+#define DC_LOGGER \
+	dccg->ctx->logger
+
+
+static const struct dccg_funcs dccg3_funcs = {
+	.update_dpp_dto = dccg2_update_dpp_dto,
+	.get_dccg_ref_freq = dccg2_get_dccg_ref_freq,
+	.dccg_init = dccg2_init
+};
+
+struct dccg *dccg3_create(
+	struct dc_context *ctx,
+	const struct dccg_registers *regs,
+	const struct dccg_shift *dccg_shift,
+	const struct dccg_mask *dccg_mask)
+{
+	struct dcn_dccg *dccg_dcn = kzalloc(sizeof(*dccg_dcn), GFP_KERNEL);
+	struct dccg *base;
+
+	if (dccg_dcn == NULL) {
+		BREAK_TO_DEBUGGER();
+		return NULL;
+	}
+
+	base = &dccg_dcn->base;
+	base->ctx = ctx;
+	base->funcs = &dccg3_funcs;
+
+	dccg_dcn->regs = regs;
+	dccg_dcn->dccg_shift = dccg_shift;
+	dccg_dcn->dccg_mask = dccg_mask;
+
+	return &dccg_dcn->base;
+}
+
+struct dccg *dccg30_create(
+	struct dc_context *ctx,
+	const struct dccg_registers *regs,
+	const struct dccg_shift *dccg_shift,
+	const struct dccg_mask *dccg_mask)
+{
+	struct dcn_dccg *dccg_dcn = kzalloc(sizeof(*dccg_dcn), GFP_KERNEL);
+	struct dccg *base;
+
+	if (dccg_dcn == NULL) {
+		BREAK_TO_DEBUGGER();
+		return NULL;
+	}
+
+	base = &dccg_dcn->base;
+	base->ctx = ctx;
+	base->funcs = &dccg3_funcs;
+
+	dccg_dcn->regs = regs;
+	dccg_dcn->dccg_shift = dccg_shift;
+	dccg_dcn->dccg_mask = dccg_mask;
+
+	return &dccg_dcn->base;
+}

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_dccg.h

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: AMD
+ *
+ */
+
+#ifndef __DCN30_DCCG_H__
+#define __DCN30_DCCG_H__
+
+#include "dcn20/dcn20_dccg.h"
+
+
+#define DCCG_REG_LIST_DCN3AG() \
+	DCCG_COMMON_REG_LIST_DCN_BASE(),\
+	SR(PHYASYMCLK_CLOCK_CNTL),\
+	SR(PHYBSYMCLK_CLOCK_CNTL),\
+	SR(PHYCSYMCLK_CLOCK_CNTL)
+
+
+#define DCCG_REG_LIST_DCN30() \
+	DCCG_REG_LIST_DCN2(),\
+	SR(PHYASYMCLK_CLOCK_CNTL),\
+	SR(PHYBSYMCLK_CLOCK_CNTL),\
+	SR(PHYCSYMCLK_CLOCK_CNTL)
+
+#define DCCG_MASK_SH_LIST_DCN3(mask_sh) \
+	DCCG_MASK_SH_LIST_DCN2(mask_sh),\
+	DCCG_SF(PHYASYMCLK_CLOCK_CNTL, PHYASYMCLK_FORCE_EN, mask_sh),\
+	DCCG_SF(PHYASYMCLK_CLOCK_CNTL, PHYASYMCLK_FORCE_SRC_SEL, mask_sh),\
+	DCCG_SF(PHYBSYMCLK_CLOCK_CNTL, PHYBSYMCLK_FORCE_EN, mask_sh),\
+	DCCG_SF(PHYBSYMCLK_CLOCK_CNTL, PHYBSYMCLK_FORCE_SRC_SEL, mask_sh),\
+	DCCG_SF(PHYCSYMCLK_CLOCK_CNTL, PHYCSYMCLK_FORCE_EN, mask_sh),\
+	DCCG_SF(PHYCSYMCLK_CLOCK_CNTL, PHYCSYMCLK_FORCE_SRC_SEL, mask_sh)
+
+struct dccg *dccg3_create(
+	struct dc_context *ctx,
+	const struct dccg_registers *regs,
+	const struct dccg_shift *dccg_shift,
+	const struct dccg_mask *dccg_mask);
+
+struct dccg *dccg30_create(
+	struct dc_context *ctx,
+	const struct dccg_registers *regs,
+	const struct dccg_shift *dccg_shift,
+	const struct dccg_mask *dccg_mask);
+
+#endif //__DCN30_DCCG_H__