drm/amd/pp: Setup SoftRegsStart before request smu load fw

need to know SoftRegsStart value to visit the register
UcodeLoadStatus to check fw loading state.
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/smumgr/iceland_smumgr.c

@@ -232,6 +232,7 @@ static int iceland_request_smu_load_specific_fw(struct pp_hwmgr *hwmgr,
 
 static int iceland_start_smu(struct pp_hwmgr *hwmgr)
 {
+	struct iceland_smumgr *priv = hwmgr->smu_backend;
 	int result;
 
 	if (!smu7_is_smc_ram_running(hwmgr)) {
@@ -242,6 +243,14 @@ static int iceland_start_smu(struct pp_hwmgr *hwmgr)
 		iceland_smu_start_smc(hwmgr);
 	}
 
+	/* Setup SoftRegsStart here to visit the register UcodeLoadStatus
+	 * to check fw loading state
+	 */
+	smu7_read_smc_sram_dword(hwmgr,
+			SMU71_FIRMWARE_HEADER_LOCATION +
+			offsetof(SMU71_Firmware_Header, SoftRegisters),
+			&(priv->smu7_data.soft_regs_start), 0x40000);
+
 	result = smu7_request_smu_load_fw(hwmgr);
 
 	return result;
@@ -2652,7 +2661,7 @@ const struct pp_smumgr_func iceland_smu_funcs = {
 	.smu_fini = &smu7_smu_fini,
 	.start_smu = &iceland_start_smu,
 	.check_fw_load_finish = &smu7_check_fw_load_finish,
-	.request_smu_load_fw = &smu7_reload_firmware,
+	.request_smu_load_fw = &smu7_request_smu_load_fw,
 	.request_smu_load_specific_fw = &iceland_request_smu_load_specific_fw,
 	.send_msg_to_smc = &smu7_send_msg_to_smc,
 	.send_msg_to_smc_with_parameter = &smu7_send_msg_to_smc_with_parameter,

drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c

@@ -192,6 +192,7 @@ static int tonga_start_in_non_protection_mode(struct pp_hwmgr *hwmgr)
 
 static int tonga_start_smu(struct pp_hwmgr *hwmgr)
 {
+	struct tonga_smumgr *priv = hwmgr->smu_backend;
 	int result;
 
 	/* Only start SMC if SMC RAM is not running */
@@ -209,6 +210,14 @@ static int tonga_start_smu(struct pp_hwmgr *hwmgr)
 		}
 	}
 
+	/* Setup SoftRegsStart here to visit the register UcodeLoadStatus
+	 * to check fw loading state
+	 */
+	smu7_read_smc_sram_dword(hwmgr,
+			SMU72_FIRMWARE_HEADER_LOCATION +
+			offsetof(SMU72_Firmware_Header, SoftRegisters),
+			&(priv->smu7_data.soft_regs_start), 0x40000);
+
 	result = smu7_request_smu_load_fw(hwmgr);
 
 	return result;