drm/amd/display: Add DCN35 DSC

[Why & How]
Add DSC 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_dsc.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 "dcn35_dsc.h"
+#include "reg_helper.h"
+
+/* Macro definitios for REG_SET macros*/
+#define CTX \
+	dsc20->base.ctx
+
+#define REG(reg)\
+	dsc20->dsc_regs->reg
+
+#undef FN
+#define FN(reg_name, field_name)                                          \
+	((const struct dcn35_dsc_shift *)(dsc20->dsc_shift))->field_name, \
+		((const struct dcn35_dsc_mask *)(dsc20->dsc_mask))->field_name
+
+#define DC_LOGGER \
+	dsc->ctx->logger
+
+void dsc35_construct(struct dcn20_dsc *dsc,
+		struct dc_context *ctx,
+		int inst,
+		const struct dcn20_dsc_registers *dsc_regs,
+		const struct dcn35_dsc_shift *dsc_shift,
+		const struct dcn35_dsc_mask *dsc_mask)
+{
+	dsc2_construct(dsc, ctx, inst, dsc_regs,
+		(const struct dcn20_dsc_shift *)(dsc_shift),
+		(const struct dcn20_dsc_mask *)(dsc_mask));
+}
+
+void dsc35_set_fgcg(struct dcn20_dsc *dsc20, bool enable)
+{
+	REG_UPDATE(DSC_TOP_CONTROL, DSC_FGCG_REP_DIS, !enable);
+}

drivers/gpu/drm/amd/display/dc/dcn35/dcn35_dsc.h

@@ -0,0 +1,57 @@
+/* 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_DSC_H__
+#define __DCN35_DSC_H__
+
+#include "dcn20/dcn20_dsc.h"
+
+#define DSC_REG_LIST_SH_MASK_DCN35(mask_sh)  \
+	DSC_REG_LIST_SH_MASK_DCN20(mask_sh), \
+		DSC_SF(DSC_TOP0_DSC_TOP_CONTROL, DSC_FGCG_REP_DIS, mask_sh)
+
+#define DSC_FIELD_LIST_DCN35(type)          \
+	struct {                            \
+		DSC_FIELD_LIST_DCN20(type); \
+		type DSC_FGCG_REP_DIS;      \
+	}
+
+struct dcn35_dsc_shift {
+	DSC_FIELD_LIST_DCN35(uint8_t);
+};
+
+struct dcn35_dsc_mask {
+	DSC_FIELD_LIST_DCN35(uint32_t);
+};
+
+void dsc35_construct(struct dcn20_dsc *dsc,
+		struct dc_context *ctx,
+		int inst,
+		const struct dcn20_dsc_registers *dsc_regs,
+		const struct dcn35_dsc_shift *dsc_shift,
+		const struct dcn35_dsc_mask *dsc_mask);
+
+void dsc35_set_fgcg(struct dcn20_dsc *dsc20, bool enable);
+
+#endif /* __DCN35_DSC_H__ */