drm/amd/display: Add DCN35 DWB

[Why & How]
Add DWB handling for DCN35.

Signed-off-by: Qingqing Zhuo <Qingqing.Zhuo@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dwb.c

@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2023 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.
+ *
+ */
+
+#include "reg_helper.h"
+#include "dcn35_dwb.h"
+
+#define REG(reg)\
+	dwbc30->dwbc_regs->reg
+
+#define CTX \
+	dwbc30->base.ctx
+
+#undef FN
+#define FN(reg_name, field_name)                                             \
+	((const struct dcn35_dwbc_shift *)(dwbc30->dwbc_shift))->field_name, \
+		((const struct dcn35_dwbc_mask *)(dwbc30->dwbc_mask))        \
+			->field_name
+
+#define DC_LOGGER \
+	dwbc30->base.ctx->logger
+
+void dcn35_dwbc_construct(struct dcn30_dwbc *dwbc30,
+	struct dc_context *ctx,
+	const struct dcn30_dwbc_registers *dwbc_regs,
+	const struct dcn35_dwbc_shift *dwbc_shift,
+	const struct dcn35_dwbc_mask *dwbc_mask,
+	int inst)
+{
+	dcn30_dwbc_construct(dwbc30, ctx, dwbc_regs,
+			     (const struct dcn30_dwbc_shift *)dwbc_shift,
+			     (const struct dcn30_dwbc_mask *)dwbc_mask, inst);
+}
+
+void dcn35_dwbc_set_fgcg(struct dcn30_dwbc *dwbc30, bool enable)
+{
+	REG_UPDATE(DWB_ENABLE_CLK_CTRL, DWB_FGCG_REP_DIS, !enable);
+}

drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dwb.h

@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2023 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.
+ *
+ */
+
+#ifndef __DCN35_DWB_H
+#define __DCN35_DWB_H
+
+#include "resource.h"
+#include "dwb.h"
+#include "dcn30/dcn30_dwb.h"
+
+#define DWBC_COMMON_MASK_SH_LIST_DCN35(mask_sh) \
+	DWBC_COMMON_MASK_SH_LIST_DCN30(mask_sh), \
+	SF_DWB2(DWB_ENABLE_CLK_CTRL, DWB_TOP, 0, DWB_FGCG_REP_DIS, mask_sh)
+
+#define DWBC_REG_FIELD_LIST_DCN3_5(type)          \
+	struct {                                  \
+		DWBC_REG_FIELD_LIST_DCN3_0(type); \
+		type DWB_FGCG_REP_DIS;            \
+	}
+
+struct dcn35_dwbc_mask {
+	DWBC_REG_FIELD_LIST_DCN3_5(uint32_t);
+};
+
+struct dcn35_dwbc_shift {
+	DWBC_REG_FIELD_LIST_DCN3_5(uint8_t);
+};
+
+void dcn35_dwbc_construct(struct dcn30_dwbc *dwbc30,
+	struct dc_context *ctx,
+	const struct dcn30_dwbc_registers *dwbc_regs,
+	const struct dcn35_dwbc_shift *dwbc_shift,
+	const struct dcn35_dwbc_mask *dwbc_mask,
+	int inst);
+
+void dcn35_dwbc_set_fgcg(struct dcn30_dwbc *dwbc30, bool enable);
+
+#endif