drm/amd/powerplay: add the smu manager for vega12 (v4)

handles the driver interaction with the smu firmware

v2: squash in:
- s3 fix for firmware loading
- smu loading through the psp
- unecessary calls to is_smc_ram_running()
- smu table cleanups
v3: rebase
v4: rebase, smu bo allocation fixes, add dpm running callback
Acked-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NEvan Quan <evan.quan@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/smumgr/Makefile

@@ -25,7 +25,8 @@
 
 SMU_MGR = smumgr.o smu8_smumgr.o tonga_smumgr.o fiji_smumgr.o \
 	  polaris10_smumgr.o iceland_smumgr.o \
-	  smu7_smumgr.o vega10_smumgr.o smu10_smumgr.o ci_smumgr.o
+	  smu7_smumgr.o vega10_smumgr.o smu10_smumgr.o ci_smumgr.o \
+	  vega12_smumgr.o
 
 AMD_PP_SMUMGR = $(addprefix $(AMD_PP_PATH)/smumgr/,$(SMU_MGR))
 

drivers/gpu/drm/amd/powerplay/smumgr/vega12_smumgr.c

+/*
+ * Copyright 2017 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.
+ *
+ */
+
+#include "smumgr.h"
+#include "vega12_inc.h"
+#include "pp_soc15.h"
+#include "vega12_smumgr.h"
+#include "vega12_ppsmc.h"
+#include "vega12/smu9_driver_if.h"
+
+#include "ppatomctrl.h"
+#include "pp_debug.h"
+#include "smu_ucode_xfer_vi.h"
+#include "smu7_smumgr.h"
+
+/* MP Apertures */
+#define MP0_Public                  0x03800000
+#define MP0_SRAM                    0x03900000
+#define MP1_Public                  0x03b00000
+#define MP1_SRAM                    0x03c00004
+
+#define smnMP1_FIRMWARE_FLAGS                                                                           0x3010028
+#define smnMP0_FW_INTF                                                                                  0x3010104
+#define smnMP1_PUB_CTRL                                                                                 0x3010b14
+
+static bool vega12_is_smc_ram_running(struct pp_hwmgr *hwmgr)
+{
+	uint32_t mp1_fw_flags, reg;
+
+	reg = soc15_get_register_offset(NBIF_HWID, 0,
+			mmPCIE_INDEX2_BASE_IDX, mmPCIE_INDEX2);
+
+	cgs_write_register(hwmgr->device, reg,
+			(MP1_Public | (smnMP1_FIRMWARE_FLAGS & 0xffffffff)));
+
+	reg = soc15_get_register_offset(NBIF_HWID, 0,
+			mmPCIE_DATA2_BASE_IDX, mmPCIE_DATA2);
+
+	mp1_fw_flags = cgs_read_register(hwmgr->device, reg);
+
+	if ((mp1_fw_flags & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK) >>
+				MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED__SHIFT)
+		return true;
+
+	return false;
+}
+
+/*
+ * Check if SMC has responded to previous message.
+ *
+ * @param    smumgr  the address of the powerplay hardware manager.
+ * @return   TRUE    SMC has responded, FALSE otherwise.
+ */
+static uint32_t vega12_wait_for_response(struct pp_hwmgr *hwmgr)
+{
+	uint32_t reg;
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90);
+
+	phm_wait_for_register_unequal(hwmgr, reg,
+			0, MP1_C2PMSG_90__CONTENT_MASK);
+
+	return cgs_read_register(hwmgr->device, reg);
+}
+
+/*
+ * Send a message to the SMC, and do not wait for its response.
+ * @param    smumgr  the address of the powerplay hardware manager.
+ * @param    msg the message to send.
+ * @return   Always return 0.
+ */
+int vega12_send_msg_to_smc_without_waiting(struct pp_hwmgr *hwmgr,
+		uint16_t msg)
+{
+	uint32_t reg;
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_66_BASE_IDX, mmMP1_SMN_C2PMSG_66);
+	cgs_write_register(hwmgr->device, reg, msg);
+
+	return 0;
+}
+
+/*
+ * Send a message to the SMC, and wait for its response.
+ * @param    hwmgr  the address of the powerplay hardware manager.
+ * @param    msg the message to send.
+ * @return   Always return 0.
+ */
+int vega12_send_msg_to_smc(struct pp_hwmgr *hwmgr, uint16_t msg)
+{
+	uint32_t reg;
+
+	vega12_wait_for_response(hwmgr);
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90);
+	cgs_write_register(hwmgr->device, reg, 0);
+
+	vega12_send_msg_to_smc_without_waiting(hwmgr, msg);
+
+	if (vega12_wait_for_response(hwmgr) != 1)
+		pr_err("Failed to send message: 0x%x\n", msg);
+
+	return 0;
+}
+
+/*
+ * Send a message to the SMC with parameter
+ * @param    hwmgr:  the address of the powerplay hardware manager.
+ * @param    msg: the message to send.
+ * @param    parameter: the parameter to send
+ * @return   Always return 0.
+ */
+int vega12_send_msg_to_smc_with_parameter(struct pp_hwmgr *hwmgr,
+		uint16_t msg, uint32_t parameter)
+{
+	uint32_t reg;
+
+	vega12_wait_for_response(hwmgr);
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_90_BASE_IDX, mmMP1_SMN_C2PMSG_90);
+	cgs_write_register(hwmgr->device, reg, 0);
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_82_BASE_IDX, mmMP1_SMN_C2PMSG_82);
+	cgs_write_register(hwmgr->device, reg, parameter);
+
+	vega12_send_msg_to_smc_without_waiting(hwmgr, msg);
+
+	if (vega12_wait_for_response(hwmgr) != 1)
+		pr_err("Failed to send message: 0x%x\n", msg);
+
+	return 0;
+}
+
+
+/*
+ * Send a message to the SMC with parameter, do not wait for response
+ * @param    hwmgr:  the address of the powerplay hardware manager.
+ * @param    msg: the message to send.
+ * @param    parameter: the parameter to send
+ * @return   The response that came from the SMC.
+ */
+int vega12_send_msg_to_smc_with_parameter_without_waiting(
+		struct pp_hwmgr *hwmgr, uint16_t msg, uint32_t parameter)
+{
+	uint32_t reg;
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_66_BASE_IDX, mmMP1_SMN_C2PMSG_66);
+	cgs_write_register(hwmgr->device, reg, parameter);
+
+	return vega12_send_msg_to_smc_without_waiting(hwmgr, msg);
+}
+
+/*
+ * Retrieve an argument from SMC.
+ * @param    hwmgr  the address of the powerplay hardware manager.
+ * @param    arg     pointer to store the argument from SMC.
+ * @return   Always return 0.
+ */
+int vega12_read_arg_from_smc(struct pp_hwmgr *hwmgr, uint32_t *arg)
+{
+	uint32_t reg;
+
+	reg = soc15_get_register_offset(MP1_HWID, 0,
+			mmMP1_SMN_C2PMSG_82_BASE_IDX, mmMP1_SMN_C2PMSG_82);
+
+	*arg = cgs_read_register(hwmgr->device, reg);
+
+	return 0;
+}
+
+/*
+ * Copy table from SMC into driver FB
+ * @param   hwmgr    the address of the HW manager
+ * @param   table_id    the driver's table ID to copy from
+ */
+int vega12_copy_table_from_smc(struct pp_hwmgr *hwmgr,
+		uint8_t *table, int16_t table_id)
+{
+	struct vega12_smumgr *priv =
+			(struct vega12_smumgr *)(hwmgr->smu_backend);
+
+	PP_ASSERT_WITH_CODE(table_id < TABLE_COUNT,
+			"Invalid SMU Table ID!", return -EINVAL);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
+			"Invalid SMU Table version!", return -EINVAL);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
+			"Invalid SMU Table Length!", return -EINVAL);
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+			PPSMC_MSG_SetDriverDramAddrHigh,
+			upper_32_bits(priv->smu_tables.entry[table_id].mc_addr)) == 0,
+			"[CopyTableFromSMC] Attempt to Set Dram Addr High Failed!", return -EINVAL);
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+			PPSMC_MSG_SetDriverDramAddrLow,
+			lower_32_bits(priv->smu_tables.entry[table_id].mc_addr)) == 0,
+			"[CopyTableFromSMC] Attempt to Set Dram Addr Low Failed!",
+			return -EINVAL);
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+			PPSMC_MSG_TransferTableSmu2Dram,
+			table_id) == 0,
+			"[CopyTableFromSMC] Attempt to Transfer Table From SMU Failed!",
+			return -EINVAL);
+
+	memcpy(table, priv->smu_tables.entry[table_id].table,
+			priv->smu_tables.entry[table_id].size);
+
+	return 0;
+}
+
+/*
+ * Copy table from Driver FB into SMC
+ * @param   hwmgr    the address of the HW manager
+ * @param   table_id    the table to copy from
+ */
+int vega12_copy_table_to_smc(struct pp_hwmgr *hwmgr,
+		uint8_t *table, int16_t table_id)
+{
+	struct vega12_smumgr *priv =
+			(struct vega12_smumgr *)(hwmgr->smu_backend);
+
+	PP_ASSERT_WITH_CODE(table_id < TABLE_COUNT,
+			"Invalid SMU Table ID!", return -EINVAL);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].version != 0,
+			"Invalid SMU Table version!", return -EINVAL);
+	PP_ASSERT_WITH_CODE(priv->smu_tables.entry[table_id].size != 0,
+			"Invalid SMU Table Length!", return -EINVAL);
+
+	memcpy(priv->smu_tables.entry[table_id].table, table,
+			priv->smu_tables.entry[table_id].size);
+
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+			PPSMC_MSG_SetDriverDramAddrHigh,
+			upper_32_bits(priv->smu_tables.entry[table_id].mc_addr)) == 0,
+			"[CopyTableToSMC] Attempt to Set Dram Addr High Failed!",
+			return -EINVAL;);
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+			PPSMC_MSG_SetDriverDramAddrLow,
+			lower_32_bits(priv->smu_tables.entry[table_id].mc_addr)) == 0,
+			"[CopyTableToSMC] Attempt to Set Dram Addr Low Failed!",
+			return -EINVAL);
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+			PPSMC_MSG_TransferTableDram2Smu,
+			table_id) == 0,
+			"[CopyTableToSMC] Attempt to Transfer Table To SMU Failed!",
+			return -EINVAL);
+
+	return 0;
+}
+
+int vega12_enable_smc_features(struct pp_hwmgr *hwmgr,
+		bool enable, uint64_t feature_mask)
+{
+	uint32_t smu_features_low, smu_features_high;
+
+	smu_features_low = (uint32_t)((feature_mask & SMU_FEATURES_LOW_MASK) >> SMU_FEATURES_LOW_SHIFT);
+	smu_features_high = (uint32_t)((feature_mask & SMU_FEATURES_HIGH_MASK) >> SMU_FEATURES_HIGH_SHIFT);
+
+	if (enable) {
+		PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_EnableSmuFeaturesLow, smu_features_low) == 0,
+				"[EnableDisableSMCFeatures] Attemp to enable SMU features Low failed!",
+				return -EINVAL);
+		PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_EnableSmuFeaturesHigh, smu_features_high) == 0,
+				"[EnableDisableSMCFeatures] Attemp to enable SMU features High failed!",
+				return -EINVAL);
+	} else {
+		PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_DisableSmuFeaturesLow, smu_features_low) == 0,
+				"[EnableDisableSMCFeatures] Attemp to disable SMU features Low failed!",
+				return -EINVAL);
+		PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_DisableSmuFeaturesHigh, smu_features_high) == 0,
+				"[EnableDisableSMCFeatures] Attemp to disable SMU features High failed!",
+				return -EINVAL);
+	}
+
+	return 0;
+}
+
+int vega12_get_enabled_smc_features(struct pp_hwmgr *hwmgr,
+		uint64_t *features_enabled)
+{
+	uint32_t smc_features_low, smc_features_high;
+
+	if (features_enabled == NULL)
+		return -EINVAL;
+
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc(hwmgr,
+			PPSMC_MSG_GetEnabledSmuFeaturesLow) == 0,
+			"[GetEnabledSMCFeatures] Attemp to get SMU features Low failed!",
+			return -EINVAL);
+	PP_ASSERT_WITH_CODE(vega12_read_arg_from_smc(hwmgr,
+			&smc_features_low) == 0,
+			"[GetEnabledSMCFeatures] Attemp to read SMU features Low argument failed!",
+			return -EINVAL);
+	PP_ASSERT_WITH_CODE(vega12_send_msg_to_smc(hwmgr,
+			PPSMC_MSG_GetEnabledSmuFeaturesHigh) == 0,
+			"[GetEnabledSMCFeatures] Attemp to get SMU features High failed!",
+			return -EINVAL);
+	PP_ASSERT_WITH_CODE(vega12_read_arg_from_smc(hwmgr,
+			&smc_features_high) == 0,
+			"[GetEnabledSMCFeatures] Attemp to read SMU features High argument failed!",
+			return -EINVAL);
+
+	*features_enabled = ((((uint64_t)smc_features_low << SMU_FEATURES_LOW_SHIFT) & SMU_FEATURES_LOW_MASK) |
+			(((uint64_t)smc_features_high << SMU_FEATURES_HIGH_SHIFT) & SMU_FEATURES_HIGH_MASK));
+
+	return 0;
+}
+
+static bool vega12_is_dpm_running(struct pp_hwmgr *hwmgr)
+{
+	uint64_t features_enabled = 0;
+
+	vega12_get_enabled_smc_features(hwmgr, &features_enabled);
+
+	if (features_enabled & SMC_DPM_FEATURES)
+		return true;
+	else
+		return false;
+}
+
+static int vega12_set_tools_address(struct pp_hwmgr *hwmgr)
+{
+	struct vega12_smumgr *priv =
+			(struct vega12_smumgr *)(hwmgr->smu_backend);
+
+	if (priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr) {
+		if (!vega12_send_msg_to_smc_with_parameter(hwmgr,
+				PPSMC_MSG_SetToolsDramAddrHigh,
+				upper_32_bits(priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr)))
+			vega12_send_msg_to_smc_with_parameter(hwmgr,
+					PPSMC_MSG_SetToolsDramAddrLow,
+					lower_32_bits(priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr));
+	}
+	return 0;
+}
+
+#if 0 /* tentatively remove */
+static int vega12_verify_smc_interface(struct pp_hwmgr *hwmgr)
+{
+	uint32_t smc_driver_if_version;
+
+	PP_ASSERT_WITH_CODE(!vega12_send_msg_to_smc(hwmgr,
+			PPSMC_MSG_GetDriverIfVersion),
+			"Attempt to get SMC IF Version Number Failed!",
+			return -EINVAL);
+	vega12_read_arg_from_smc(hwmgr, &smc_driver_if_version);
+
+	if (smc_driver_if_version != SMU9_DRIVER_IF_VERSION) {
+		pr_err("Your firmware(0x%x) doesn't match \
+			SMU9_DRIVER_IF_VERSION(0x%x). \
+			Please update your firmware!\n",
+			smc_driver_if_version, SMU9_DRIVER_IF_VERSION);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+#endif
+
+static int vega12_smu_init(struct pp_hwmgr *hwmgr)
+{
+	struct vega12_smumgr *priv;
+	unsigned long tools_size;
+	struct cgs_firmware_info info = {0};
+	int ret;
+
+	ret = cgs_get_firmware_info(hwmgr->device,
+				smu7_convert_fw_type_to_cgs(UCODE_ID_SMU),
+				&info);
+	if (ret || !info.kptr)
+		return -EINVAL;
+
+	priv = kzalloc(sizeof(struct vega12_smumgr), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	hwmgr->smu_backend = priv;
+
+	/* allocate space for pptable */
+	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
+			sizeof(PPTable_t),
+			PAGE_SIZE,
+			AMDGPU_GEM_DOMAIN_VRAM,
+			&priv->smu_tables.entry[TABLE_PPTABLE].handle,
+			&priv->smu_tables.entry[TABLE_PPTABLE].mc_addr,
+			&priv->smu_tables.entry[TABLE_PPTABLE].table);
+	if (ret)
+		goto free_backend;
+
+	priv->smu_tables.entry[TABLE_PPTABLE].version = 0x01;
+	priv->smu_tables.entry[TABLE_PPTABLE].size = sizeof(PPTable_t);
+
+	/* allocate space for watermarks table */
+	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
+				      sizeof(Watermarks_t),
+				      PAGE_SIZE,
+				      AMDGPU_GEM_DOMAIN_VRAM,
+				      &priv->smu_tables.entry[TABLE_WATERMARKS].handle,
+				      &priv->smu_tables.entry[TABLE_WATERMARKS].mc_addr,
+				      &priv->smu_tables.entry[TABLE_WATERMARKS].table);
+
+	if (ret)
+		goto err0;
+
+	priv->smu_tables.entry[TABLE_WATERMARKS].version = 0x01;
+	priv->smu_tables.entry[TABLE_WATERMARKS].size = sizeof(Watermarks_t);
+
+	tools_size = 0x19000;
+	if (tools_size) {
+		ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
+					      tools_size,
+					      PAGE_SIZE,
+					      AMDGPU_GEM_DOMAIN_VRAM,
+					      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].handle,
+					      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr,
+					      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].table);
+		if (ret)
+			goto err1;
+
+		priv->smu_tables.entry[TABLE_PMSTATUSLOG].version = 0x01;
+		priv->smu_tables.entry[TABLE_PMSTATUSLOG].size = tools_size;
+	}
+
+	/* allocate space for AVFS Fuse table */
+	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
+				      sizeof(AvfsFuseOverride_t),
+				      PAGE_SIZE,
+				      AMDGPU_GEM_DOMAIN_VRAM,
+				      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].handle,
+				      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].mc_addr,
+				      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].table);
+
+	if (ret)
+		goto err2;
+
+	priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].version = 0x01;
+	priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].size = sizeof(AvfsFuseOverride_t);
+
+	/* allocate space for OverDrive table */
+	ret = amdgpu_bo_create_kernel((struct amdgpu_device *)hwmgr->adev,
+				      sizeof(OverDriveTable_t),
+				      PAGE_SIZE,
+				      AMDGPU_GEM_DOMAIN_VRAM,
+				      &priv->smu_tables.entry[TABLE_OVERDRIVE].handle,
+				      &priv->smu_tables.entry[TABLE_OVERDRIVE].mc_addr,
+				      &priv->smu_tables.entry[TABLE_OVERDRIVE].table);
+	if (ret)
+		goto err3;
+
+	priv->smu_tables.entry[TABLE_OVERDRIVE].version = 0x01;
+	priv->smu_tables.entry[TABLE_OVERDRIVE].size = sizeof(OverDriveTable_t);
+
+	return 0;
+
+err3:
+	amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].handle,
+				&priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].mc_addr,
+				&priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].table);
+err2:
+	if (priv->smu_tables.entry[TABLE_PMSTATUSLOG].table)
+		amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PMSTATUSLOG].handle,
+				&priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr,
+				&priv->smu_tables.entry[TABLE_PMSTATUSLOG].table);
+err1:
+	amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_WATERMARKS].handle,
+				&priv->smu_tables.entry[TABLE_WATERMARKS].mc_addr,
+				&priv->smu_tables.entry[TABLE_WATERMARKS].table);
+err0:
+	amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PPTABLE].handle,
+			&priv->smu_tables.entry[TABLE_PPTABLE].mc_addr,
+			&priv->smu_tables.entry[TABLE_PPTABLE].table);
+free_backend:
+	kfree(hwmgr->smu_backend);
+
+	return -EINVAL;
+}
+
+static int vega12_smu_fini(struct pp_hwmgr *hwmgr)
+{
+	struct vega12_smumgr *priv =
+			(struct vega12_smumgr *)(hwmgr->smu_backend);
+
+	if (priv) {
+		amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PPTABLE].handle,
+				      &priv->smu_tables.entry[TABLE_PPTABLE].mc_addr,
+				      &priv->smu_tables.entry[TABLE_PPTABLE].table);
+		amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_WATERMARKS].handle,
+				      &priv->smu_tables.entry[TABLE_WATERMARKS].mc_addr,
+				      &priv->smu_tables.entry[TABLE_WATERMARKS].table);
+		if (priv->smu_tables.entry[TABLE_PMSTATUSLOG].table)
+			amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_PMSTATUSLOG].handle,
+					      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].mc_addr,
+					      &priv->smu_tables.entry[TABLE_PMSTATUSLOG].table);
+		amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].handle,
+				      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].mc_addr,
+				      &priv->smu_tables.entry[TABLE_AVFS_FUSE_OVERRIDE].table);
+		amdgpu_bo_free_kernel(&priv->smu_tables.entry[TABLE_OVERDRIVE].handle,
+				      &priv->smu_tables.entry[TABLE_OVERDRIVE].mc_addr,
+				      &priv->smu_tables.entry[TABLE_OVERDRIVE].table);
+		kfree(hwmgr->smu_backend);
+		hwmgr->smu_backend = NULL;
+	}
+	return 0;
+}
+
+static int vega12_start_smu(struct pp_hwmgr *hwmgr)
+{
+	PP_ASSERT_WITH_CODE(vega12_is_smc_ram_running(hwmgr),
+			"SMC is not running!",
+			return -EINVAL);
+
+#if 0 /* tentatively remove */
+	PP_ASSERT_WITH_CODE(!vega12_verify_smc_interface(hwmgr),
+			"Failed to verify SMC interface!",
+			return -EINVAL);
+#endif
+
+	vega12_set_tools_address(hwmgr);
+
+	return 0;
+}
+
+const struct pp_smumgr_func vega12_smu_funcs = {
+	.smu_init = &vega12_smu_init,
+	.smu_fini = &vega12_smu_fini,
+	.start_smu = &vega12_start_smu,
+	.request_smu_load_specific_fw = NULL,
+	.send_msg_to_smc = &vega12_send_msg_to_smc,
+	.send_msg_to_smc_with_parameter = &vega12_send_msg_to_smc_with_parameter,
+	.download_pptable_settings = NULL,
+	.upload_pptable_settings = NULL,
+	.is_dpm_running = vega12_is_dpm_running,
+};

drivers/gpu/drm/amd/powerplay/smumgr/vega12_smumgr.h

+/*
+ * Copyright 2017 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.
+ *
+ */
+#ifndef _VEGA12_SMUMANAGER_H_
+#define _VEGA12_SMUMANAGER_H_
+
+#include "hwmgr.h"
+#include "vega12/smu9_driver_if.h"
+#include "vega12_hwmgr.h"
+
+struct smu_table_entry {
+	uint32_t version;
+	uint32_t size;
+	uint64_t mc_addr;
+	void *table;
+	struct amdgpu_bo *handle;
+};
+
+struct smu_table_array {
+	struct smu_table_entry entry[TABLE_COUNT];
+};
+
+struct vega12_smumgr {
+	struct smu_table_array            smu_tables;
+};
+
+#define SMU_FEATURES_LOW_MASK        0x00000000FFFFFFFF
+#define SMU_FEATURES_LOW_SHIFT       0
+#define SMU_FEATURES_HIGH_MASK       0xFFFFFFFF00000000
+#define SMU_FEATURES_HIGH_SHIFT      32
+
+int vega12_read_arg_from_smc(struct pp_hwmgr *hwmgr, uint32_t *arg);
+int vega12_copy_table_from_smc(struct pp_hwmgr *hwmgr,
+		uint8_t *table, int16_t table_id);
+int vega12_copy_table_to_smc(struct pp_hwmgr *hwmgr,
+		uint8_t *table, int16_t table_id);
+int vega12_enable_smc_features(struct pp_hwmgr *hwmgr,
+		bool enable, uint64_t feature_mask);
+int vega12_get_enabled_smc_features(struct pp_hwmgr *hwmgr,
+		uint64_t *features_enabled);
+
+#endif
+