drm/amd/display: Add DCN315 CLK_MGR

Clk and SMU interfaces for DCN 3.1.5.
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/clk_mgr/Makefile

@@ -154,6 +154,15 @@ AMD_DAL_CLK_MGR_DCN31 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn31/,$(CLK_MGR_DC
 
 AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN31)
 
+###############################################################################
+# DCN315
+###############################################################################
+CLK_MGR_DCN315 = dcn315_smu.o dcn315_clk_mgr.o
+
+AMD_DAL_CLK_MGR_DCN315 = $(addprefix $(AMDDALPATH)/dc/clk_mgr/dcn315/,$(CLK_MGR_DCN315))
+
+AMD_DISPLAY_FILES += $(AMD_DAL_CLK_MGR_DCN315)
+
 ###############################################################################
 # DCN316
 ###############################################################################

drivers/gpu/drm/amd/display/dc/clk_mgr/clk_mgr.c

@@ -43,6 +43,7 @@
 #include "dcn30/dcn30_clk_mgr.h"
 #include "dcn301/vg_clk_mgr.h"
 #include "dcn31/dcn31_clk_mgr.h"
+#include "dcn315/dcn315_clk_mgr.h"
 #include "dcn316/dcn316_clk_mgr.h"
 
 
@@ -290,6 +291,19 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p
 		dcn31_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
 		return &clk_mgr->base.base;
 	}
+		break;
+	case AMDGPU_FAMILY_GC_10_3_6: {
+		struct clk_mgr_dcn315 *clk_mgr = kzalloc(sizeof(*clk_mgr), GFP_KERNEL);
+
+		if (clk_mgr == NULL) {
+			BREAK_TO_DEBUGGER();
+			return NULL;
+		}
+
+		dcn315_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
+		return &clk_mgr->base.base;
+	}
+		break;
 	case AMDGPU_FAMILY_GC_10_3_7: {
 		struct clk_mgr_dcn316 *clk_mgr = kzalloc(sizeof(*clk_mgr), GFP_KERNEL);
 
@@ -301,6 +315,7 @@ struct clk_mgr *dc_clk_mgr_create(struct dc_context *ctx, struct pp_smu_funcs *p
 		dcn316_clk_mgr_construct(ctx, clk_mgr, pp_smu, dccg);
 		return &clk_mgr->base.base;
 	}
+		break;
 #endif
 
 	default:
@@ -334,11 +349,15 @@ void dc_destroy_clk_mgr(struct clk_mgr *clk_mgr_base)
 		break;
 
 	case FAMILY_YELLOW_CARP:
-			dcn31_clk_mgr_destroy(clk_mgr);
+		dcn31_clk_mgr_destroy(clk_mgr);
+		break;
+
+	case AMDGPU_FAMILY_GC_10_3_6:
+		dcn315_clk_mgr_destroy(clk_mgr);
 		break;
 
 	case AMDGPU_FAMILY_GC_10_3_7:
-			dcn316_clk_mgr_destroy(clk_mgr);
+		dcn316_clk_mgr_destroy(clk_mgr);
 		break;
 
 	default:

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.h

+/*
+ * Copyright 2021 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 __DCN315_CLK_MGR_H__
+#define __DCN315_CLK_MGR_H__
+#include "clk_mgr_internal.h"
+
+struct dcn315_watermarks;
+
+struct dcn315_smu_watermark_set {
+	struct dcn315_watermarks *wm_set;
+	union large_integer mc_address;
+};
+
+struct clk_mgr_dcn315 {
+	struct clk_mgr_internal base;
+	struct dcn315_smu_watermark_set smu_wm_set;
+};
+
+void dcn315_clk_mgr_construct(struct dc_context *ctx,
+		struct clk_mgr_dcn315 *clk_mgr,
+		struct pp_smu_funcs *pp_smu,
+		struct dccg *dccg);
+
+void dcn315_clk_mgr_destroy(struct clk_mgr_internal *clk_mgr_int);
+
+#endif //__DCN315_CLK_MGR_H__

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_smu.h

+/*
+ * Copyright 2021 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 DAL_DC_315_SMU_H_
+#define DAL_DC_315_SMU_H_
+#include "os_types.h"
+
+#define PMFW_DRIVER_IF_VERSION 4
+
+#define NUM_DCFCLK_DPM_LEVELS   4
+#define NUM_DISPCLK_DPM_LEVELS  4
+#define NUM_DPPCLK_DPM_LEVELS   4
+#define NUM_SOCCLK_DPM_LEVELS   4
+#define NUM_VCN_DPM_LEVELS      4
+#define NUM_SOC_VOLTAGE_LEVELS  4
+#define NUM_DF_PSTATE_LEVELS    4
+
+typedef struct {
+  uint16_t MinClock; // This is either DCFCLK or SOCCLK (in MHz)
+  uint16_t MaxClock; // This is either DCFCLK or SOCCLK (in MHz)
+  uint16_t MinMclk;
+  uint16_t MaxMclk;
+  uint8_t  WmSetting;
+  uint8_t  WmType;  // Used for normal pstate change or memory retraining
+  uint8_t  Padding[2];
+} WatermarkRowGeneric_t;
+
+#define NUM_WM_RANGES 4
+#define WM_PSTATE_CHG 0
+#define WM_RETRAINING 1
+
+typedef enum {
+  WM_SOCCLK = 0,
+  WM_DCFCLK,
+  WM_COUNT,
+} WM_CLOCK_e;
+
+typedef struct {
+  uint32_t FClk;
+  uint32_t MemClk;
+  uint32_t Voltage;
+} DfPstateTable_t;
+
+//Freq in MHz
+//Voltage in milli volts with 2 fractional bits
+typedef struct {
+  uint32_t DcfClocks[NUM_DCFCLK_DPM_LEVELS];
+  uint32_t DispClocks[NUM_DISPCLK_DPM_LEVELS];
+  uint32_t DppClocks[NUM_DPPCLK_DPM_LEVELS];
+  uint32_t SocClocks[NUM_SOCCLK_DPM_LEVELS];
+  uint32_t VClocks[NUM_VCN_DPM_LEVELS];
+  uint32_t DClocks[NUM_VCN_DPM_LEVELS];
+  uint32_t SocVoltage[NUM_SOC_VOLTAGE_LEVELS];
+  DfPstateTable_t DfPstateTable[NUM_DF_PSTATE_LEVELS];
+  uint8_t  NumDcfClkLevelsEnabled;
+  uint8_t  NumDispClkLevelsEnabled; //Applies to both Dispclk and Dppclk
+  uint8_t  NumSocClkLevelsEnabled;
+  uint8_t  VcnClkLevelsEnabled;     //Applies to both Vclk and Dclk
+  uint8_t  NumDfPstatesEnabled;
+  uint8_t  spare[3];
+  uint32_t MinGfxClk;
+  uint32_t MaxGfxClk;
+} DpmClocks_315_t;
+
+struct dcn315_watermarks {
+  // Watermarks
+  WatermarkRowGeneric_t WatermarkRow[WM_COUNT][NUM_WM_RANGES];
+  uint32_t MmHubPadding[7]; // SMU internal use
+};
+
+struct dcn315_smu_dpm_clks {
+	DpmClocks_315_t *dpm_clks;
+	union large_integer mc_address;
+};
+
+#define TABLE_WATERMARKS         1 // Called by DAL through VBIOS
+#define TABLE_DPMCLOCKS          4 // Called by Driver and VBIOS
+
+struct display_idle_optimization {
+	unsigned int df_request_disabled : 1;
+	unsigned int phy_ref_clk_off     : 1;
+	unsigned int s0i2_rdy            : 1;
+	unsigned int reserved            : 29;
+};
+
+union display_idle_optimization_u {
+	struct display_idle_optimization idle_info;
+	uint32_t data;
+};
+
+int dcn315_smu_get_smu_version(struct clk_mgr_internal *clk_mgr);
+int dcn315_smu_set_dispclk(struct clk_mgr_internal *clk_mgr, int requested_dispclk_khz);
+int dcn315_smu_set_hard_min_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_dcfclk_khz);
+int dcn315_smu_set_min_deep_sleep_dcfclk(struct clk_mgr_internal *clk_mgr, int requested_min_ds_dcfclk_khz);
+int dcn315_smu_set_dppclk(struct clk_mgr_internal *clk_mgr, int requested_dpp_khz);
+void dcn315_smu_set_display_idle_optimization(struct clk_mgr_internal *clk_mgr, uint32_t idle_info);
+void dcn315_smu_enable_phy_refclk_pwrdwn(struct clk_mgr_internal *clk_mgr, bool enable);
+void dcn315_smu_set_dram_addr_high(struct clk_mgr_internal *clk_mgr, uint32_t addr_high);
+void dcn315_smu_set_dram_addr_low(struct clk_mgr_internal *clk_mgr, uint32_t addr_low);
+void dcn315_smu_transfer_dpm_table_smu_2_dram(struct clk_mgr_internal *clk_mgr);
+void dcn315_smu_transfer_wm_table_dram_2_smu(struct clk_mgr_internal *clk_mgr);
+void dcn315_smu_request_voltage_via_phyclk(struct clk_mgr_internal *clk_mgr, int requested_phyclk_khz);
+void dcn315_smu_enable_pme_wa(struct clk_mgr_internal *clk_mgr);
+#endif /* DAL_DC_315_SMU_H_ */