drm/amd/display: Add DCN3 DML

Add support for DML(Display mode library) for bandwidth calculations
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dml/Makefile

@@ -61,6 +61,10 @@ CFLAGS_$(AMDDALPATH)/dc/dml/dcn20/display_rq_dlg_calc_20v2.o := $(dml_ccflags)
 CFLAGS_$(AMDDALPATH)/dc/dml/dcn21/display_mode_vba_21.o := $(dml_ccflags)
 CFLAGS_$(AMDDALPATH)/dc/dml/dcn21/display_rq_dlg_calc_21.o := $(dml_ccflags)
 endif
+ifdef CONFIG_DRM_AMD_DC_DCN3_0
+CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_mode_vba_30.o := $(dml_ccflags) -Wframe-larger-than=2048
+CFLAGS_$(AMDDALPATH)/dc/dml/dcn30/display_rq_dlg_calc_30.o := $(dml_ccflags)
+endif
 CFLAGS_$(AMDDALPATH)/dc/dml/dml1_display_rq_dlg_calc.o := $(dml_ccflags)
 CFLAGS_$(AMDDALPATH)/dc/dml/display_rq_dlg_helpers.o := $(dml_ccflags)
 
@@ -72,6 +76,9 @@ DML += dcn20/display_rq_dlg_calc_20v2.o dcn20/display_mode_vba_20v2.o
 DML += dcn21/display_rq_dlg_calc_21.o dcn21/display_mode_vba_21.o
 endif
 
+ifdef CONFIG_DRM_AMD_DC_DCN3_0
+DML += dcn30/display_mode_vba_30.o dcn30/display_rq_dlg_calc_30.o
+endif
 
 AMD_DAL_DML = $(addprefix $(AMDDALPATH)/dc/dml/,$(DML))
 

drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.h

+/*
+ * 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 __DML30_DISPLAY_MODE_VBA_H__
+#define __DML30_DISPLAY_MODE_VBA_H__
+
+void dml30_recalculate(struct display_mode_lib *mode_lib);
+void dml30_ModeSupportAndSystemConfigurationFull(struct display_mode_lib *mode_lib);
+double dml30_CalculateWriteBackDISPCLK(
+		enum source_format_class WritebackPixelFormat,
+		double PixelClock,
+		double WritebackHRatio,
+		double WritebackVRatio,
+		unsigned int WritebackHTaps,
+		unsigned int WritebackVTaps,
+		long   WritebackSourceWidth,
+		long   WritebackDestinationWidth,
+		unsigned int HTotal,
+		unsigned int WritebackLineBufferSize);
+
+#endif /* __DML30_DISPLAY_MODE_VBA_H__ */

drivers/gpu/drm/amd/display/dc/dml/dcn30/display_rq_dlg_calc_30.h

+/*
+ * 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 __DML30_DISPLAY_RQ_DLG_CALC_H__
+#define __DML30_DISPLAY_RQ_DLG_CALC_H__
+
+#include "../display_rq_dlg_helpers.h"
+
+struct display_mode_lib;
+
+// Function: dml_rq_dlg_get_rq_reg
+//  Main entry point for test to get the register values out of this DML class.
+//  This function calls <get_rq_param> and <extract_rq_regs> fucntions to calculate
+//  and then populate the rq_regs struct
+// Input:
+//  pipe_param - pipe source configuration (e.g. vp, pitch, scaling, dest, etc.)
+// Output:
+//  rq_regs - struct that holds all the RQ registers field value.
+//            See also: <display_rq_regs_st>
+void dml30_rq_dlg_get_rq_reg(struct display_mode_lib *mode_lib,
+		display_rq_regs_st *rq_regs,
+		const display_pipe_params_st pipe_param);
+
+// Function: dml_rq_dlg_get_dlg_reg
+//   Calculate and return DLG and TTU register struct given the system setting
+// Output:
+//  dlg_regs - output DLG register struct
+//  ttu_regs - output DLG TTU register struct
+// Input:
+//  e2e_pipe_param - "compacted" array of e2e pipe param struct
+//  num_pipes - num of active "pipe" or "route"
+//  pipe_idx - index that identifies the e2e_pipe_param that corresponding to this dlg
+//  cstate - 0: when calculate min_ttu_vblank it is assumed cstate is not required. 1: Normal mode, cstate is considered.
+//           Added for legacy or unrealistic timing tests.
+void dml30_rq_dlg_get_dlg_reg(struct display_mode_lib             *mode_lib,
+		display_dlg_regs_st          *dlg_regs,
+		display_ttu_regs_st          *ttu_regs,
+		display_e2e_pipe_params_st   *e2e_pipe_param,
+		const unsigned int            num_pipes,
+		const unsigned int            pipe_idx,
+		const bool                    cstate_en,
+		const bool                    pstate_en,
+		const bool                    vm_en,
+		const bool                    ignore_viewport_pos,
+		const bool                    immediate_flip_support);
+
+#endif

drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.h

@@ -37,6 +37,9 @@ enum dml_project {
 	DML_PROJECT_NAVI10,
 	DML_PROJECT_NAVI10v2,
 	DML_PROJECT_DCN21,
+#ifdef CONFIG_DRM_AMD_DC_DCN3_0
+	DML_PROJECT_DCN30,
+#endif
 };
 
 struct display_mode_lib;
@@ -78,4 +81,12 @@ void dml_init_instance(struct display_mode_lib *lib,
 
 const char *dml_get_status_message(enum dm_validation_status status);
 
+#if defined(CONFIG_DRM_AMD_DC_DCN3_0)
+void dml_log_pipe_params(
+		struct display_mode_lib *mode_lib,
+		display_e2e_pipe_params_st *pipes,
+		int pipe_cnt);
+
+void dml_log_mode_support_params(struct display_mode_lib *mode_lib);
+#endif  // CONFIG_DRM_AMD_DC_DCN3_0
 #endif

drivers/gpu/drm/amd/display/dc/dml/display_mode_structs.h

@@ -124,6 +124,9 @@ struct _vcs_dpi_soc_bounding_box_st {
 
 struct _vcs_dpi_ip_params_st {
 	bool use_min_dcfclk;
+#ifdef CONFIG_DRM_AMD_DC_DCN3_0
+	bool clamp_min_dcfclk;
+#endif
 	bool gpuvm_enable;
 	bool hostvm_enable;
 	bool dsc422_native_support;

drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.c

@@ -300,6 +300,9 @@ static void fetch_ip_params(struct display_mode_lib *mode_lib)
 
 	// IP Parameters
 	mode_lib->vba.UseMinimumRequiredDCFCLK = ip->use_min_dcfclk;
+#ifdef CONFIG_DRM_AMD_DC_DCN3_0
+	mode_lib->vba.ClampMinDCFCLK = ip->clamp_min_dcfclk;
+#endif
 	mode_lib->vba.MaxNumDPP = ip->max_num_dpp;
 	mode_lib->vba.MaxNumOTG = ip->max_num_otg;
 	mode_lib->vba.MaxNumHDMIFRLOutputs = ip->max_num_hdmi_frl_outputs;

drivers/gpu/drm/amd/display/dc/dml/display_mode_vba.h

@@ -924,6 +924,9 @@ struct vba_vars_st {
 	double BPP;
 	enum odm_combine_policy ODMCombinePolicy;
 	bool UseMinimumRequiredDCFCLK;
+#ifdef CONFIG_DRM_AMD_DC_DCN3_0
+	bool ClampMinDCFCLK;
+#endif
 	bool AllowDramClockChangeOneDisplayVactive;
 	bool SynchronizeTimingsIfSingleRefreshRate;