drm/amdgpu/powerplay: add core support for pre-SOC15 baco

This adds core support for BACO on pre-vega asics.
Reviewed-by: NEvan Quan <evan.quan@amd.com>
Acked-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/common_baco.c

@@ -79,6 +79,25 @@ static bool baco_cmd_handler(struct pp_hwmgr *hwmgr, u32 command, u32 reg, u32 m
 	return ret;
 }
 
+bool baco_program_registers(struct pp_hwmgr *hwmgr,
+			    const struct baco_cmd_entry *entry,
+			    const u32 array_size)
+{
+	u32 i, reg = 0;
+
+	for (i = 0; i < array_size; i++) {
+		if ((entry[i].cmd == CMD_WRITE) ||
+		    (entry[i].cmd == CMD_READMODIFYWRITE) ||
+		    (entry[i].cmd == CMD_WAITFOR))
+			reg = entry[i].reg_offset;
+		if (!baco_cmd_handler(hwmgr, entry[i].cmd, reg, entry[i].mask,
+				     entry[i].shift, entry[i].val, entry[i].timeout))
+			return false;
+	}
+
+	return true;
+}
+
 bool soc15_baco_program_registers(struct pp_hwmgr *hwmgr,
 				 const struct soc15_baco_cmd_entry *entry,
 				 const u32 array_size)

drivers/gpu/drm/amd/powerplay/hwmgr/common_baco.h

@@ -33,6 +33,15 @@ enum baco_cmd_type {
 	CMD_DELAY_US,
 };
 
+struct baco_cmd_entry {
+	enum baco_cmd_type cmd;
+	uint32_t 	reg_offset;
+	uint32_t     	mask;
+	uint32_t     	shift;
+	uint32_t     	timeout;
+	uint32_t     	val;
+};
+
 struct soc15_baco_cmd_entry {
 	enum baco_cmd_type cmd;
 	uint32_t 	hwip;
@@ -44,6 +53,10 @@ struct soc15_baco_cmd_entry {
 	uint32_t     	timeout;
 	uint32_t     	val;
 };
+
+extern bool baco_program_registers(struct pp_hwmgr *hwmgr,
+				   const struct baco_cmd_entry *entry,
+				   const u32 array_size);
 extern bool soc15_baco_program_registers(struct pp_hwmgr *hwmgr,
 					const struct soc15_baco_cmd_entry *entry,
 					const u32 array_size);