drm/amd/display: Add Renoir clock manager

Controls display clocks and interfaces with powerplay for
clock and power requirements.

Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 125 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
index 938bdc5c21a1..76f9ad1b23df 100644
--- a/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
+++ b/drivers/gpu/drm/amd/display/dc/inc/hw/clk_mgr.h
@@ -31,6 +31,128 @@
 #define DCN_MINIMUM_DISPCLK_Khz 100000
 #define DCN_MINIMUM_DPPCLK_Khz 100000
 
+#ifdef CONFIG_DRM_AMD_DC_DCN2_1
+/* Constants */
+#define DDR4_DRAM_WIDTH   64
+#define WM_A 0
+#define WM_B 1
+#define WM_C 2
+#define WM_D 3
+#define WM_SET_COUNT 4
+#endif
+
+#define DCN_MINIMUM_DISPCLK_Khz 100000
+#define DCN_MINIMUM_DPPCLK_Khz 100000
+
+#ifdef CONFIG_DRM_AMD_DC_DCN2_1
+/* Will these bw structures be ASIC specific? */
+
+#define MAX_NUM_DPM_LVL		4
+#define WM_SET_COUNT 		4
+
+
+struct clk_limit_table_entry {
+	unsigned int voltage; /* milivolts withh 2 fractional bits */
+	unsigned int dcfclk_mhz;
+	unsigned int fclk_mhz;
+	unsigned int memclk_mhz;
+	unsigned int socclk_mhz;
+};
+
+/* This table is contiguous */
+struct clk_limit_table {
+	struct clk_limit_table_entry entries[MAX_NUM_DPM_LVL];
+	unsigned int num_entries;
+};
+
+struct wm_range_table_entry {
+	unsigned int wm_inst;
+	unsigned int wm_type;
+	double pstate_latency_us;
+	bool valid;
+};
+
+
+struct clk_log_info {
+	bool enabled;
+	char *pBuf;
+	unsigned int bufSize;
+	unsigned int *sum_chars_printed;
+};
+
+struct clk_state_registers_and_bypass {
+	uint32_t dcfclk;
+	uint32_t dcf_deep_sleep_divider;
+	uint32_t dcf_deep_sleep_allow;
+	uint32_t dprefclk;
+	uint32_t dispclk;
+	uint32_t dppclk;
+
+	uint32_t dppclk_bypass;
+	uint32_t dcfclk_bypass;
+	uint32_t dprefclk_bypass;
+	uint32_t dispclk_bypass;
+};
+
+struct rv1_clk_internal {
+	uint32_t CLK0_CLK8_CURRENT_CNT;  //dcfclk
+	uint32_t CLK0_CLK8_DS_CNTL;		 //dcf_deep_sleep_divider
+	uint32_t CLK0_CLK8_ALLOW_DS;	 //dcf_deep_sleep_allow
+	uint32_t CLK0_CLK10_CURRENT_CNT; //dprefclk
+	uint32_t CLK0_CLK11_CURRENT_CNT; //dispclk
+
+	uint32_t CLK0_CLK8_BYPASS_CNTL;  //dcfclk bypass
+	uint32_t CLK0_CLK10_BYPASS_CNTL; //dprefclk bypass
+	uint32_t CLK0_CLK11_BYPASS_CNTL; //dispclk bypass
+};
+
+struct rn_clk_internal {
+	uint32_t CLK1_CLK0_CURRENT_CNT; //dispclk
+	uint32_t CLK1_CLK1_CURRENT_CNT; //dppclk
+	uint32_t CLK1_CLK2_CURRENT_CNT; //dprefclk
+	uint32_t CLK1_CLK3_CURRENT_CNT; //dcfclk
+	uint32_t CLK1_CLK3_DS_CNTL;		//dcf_deep_sleep_divider
+	uint32_t CLK1_CLK3_ALLOW_DS;	//dcf_deep_sleep_allow
+
+	uint32_t CLK1_CLK0_BYPASS_CNTL; //dispclk bypass
+	uint32_t CLK1_CLK1_BYPASS_CNTL; //dppclk bypass
+	uint32_t CLK1_CLK2_BYPASS_CNTL; //dprefclk bypass
+	uint32_t CLK1_CLK3_BYPASS_CNTL; //dcfclk bypass
+
+};
+
+/* For dtn logging and debugging */
+struct clk_state_registers {
+		uint32_t CLK0_CLK8_CURRENT_CNT;  //dcfclk
+		uint32_t CLK0_CLK8_DS_CNTL;		 //dcf_deep_sleep_divider
+		uint32_t CLK0_CLK8_ALLOW_DS;	 //dcf_deep_sleep_allow
+		uint32_t CLK0_CLK10_CURRENT_CNT; //dprefclk
+		uint32_t CLK0_CLK11_CURRENT_CNT; //dispclk
+};
+
+/* TODO: combine this with the above */
+struct clk_bypass {
+	uint32_t dcfclk_bypass;
+	uint32_t dispclk_pypass;
+	uint32_t dprefclk_bypass;
+};
+/*
+ * This table is not contiguous, can have holes, each
+ * entry correspond to one set of WM. For example if
+ * we have 2 DPM and LPDDR, we will WM set A, B and
+ * D occupied, C will be emptry.
+ */
+struct wm_table {
+	struct wm_range_table_entry entries[WM_SET_COUNT];
+};
+
+struct clk_bw_params {
+	unsigned int vram_type;
+	unsigned int num_channels;
+	struct clk_limit_table clk_table;
+	struct wm_table wm_table;
+};
+#endif
 /* Public interfaces */
 
 struct clk_states {
@@ -65,6 +187,9 @@ struct clk_mgr {
 	struct clk_mgr_funcs *funcs;
 	struct dc_clocks clks;
 	int dprefclk_khz; // Used by program pixel clock in clock source funcs, need to figureout where this goes
+#ifdef CONFIG_DRM_AMD_DC_DCN2_1
+	struct clk_bw_params *bw_params;
+#endif
 };
 
 /* forward declarations */