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linux_dsm_epyc7002/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
Kevin Wang c4e0dbcb20 drm/amd/swsmu: allow asic to handle sensor type by itself 
1. allow asic to handle sensor type by itself.
2. if not, use smu common sensor to handle it.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-08-06 16:35:56 -04:00

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58 KiB
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/*
* Copyright 2019 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.
*/
#define SWSMU_CODE_LAYER_L1
#include <linux/firmware.h>
#include <linux/pci.h>
#include "amdgpu.h"
#include "amdgpu_smu.h"
#include "smu_internal.h"
#include "atom.h"
#include "arcturus_ppt.h"
#include "navi10_ppt.h"
#include "sienna_cichlid_ppt.h"
#include "renoir_ppt.h"
#include "amd_pcie.h"
/*
* DO NOT use these for err/warn/info/debug messages.
* Use dev_err, dev_warn, dev_info and dev_dbg instead.
* They are more MGPU friendly.
*/
#undef pr_err
#undef pr_warn
#undef pr_info
#undef pr_debug
size_t smu_sys_get_pp_feature_mask(struct smu_context *smu, char *buf)
{
size_t size = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
size = smu_get_pp_feature_mask(smu, buf);
mutex_unlock(&smu->mutex);
return size;
}
int smu_sys_set_pp_feature_mask(struct smu_context *smu, uint64_t new_mask)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
ret = smu_set_pp_feature_mask(smu, new_mask);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_status_gfxoff(struct amdgpu_device *adev, uint32_t *value)
{
int ret = 0;
struct smu_context *smu = &adev->smu;
if (is_support_sw_smu(adev) && smu->ppt_funcs->get_gfx_off_status)
*value = smu_get_gfx_off_status(smu);
else
ret = -EINVAL;
return ret;
}
int smu_set_soft_freq_range(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t min,
uint32_t max)
{
int ret = 0;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_soft_freq_limited_range)
ret = smu->ppt_funcs->set_soft_freq_limited_range(smu,
clk_type,
min,
max);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_dpm_freq_range(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t *min,
uint32_t *max)
{
int ret = 0;
if (!min && !max)
return -EINVAL;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_dpm_ultimate_freq)
ret = smu->ppt_funcs->get_dpm_ultimate_freq(smu,
clk_type,
min,
max);
mutex_unlock(&smu->mutex);
return ret;
}
/**
* smu_dpm_set_power_gate - power gate/ungate the specific IP block
*
* @smu: smu_context pointer
* @block_type: the IP block to power gate/ungate
* @gate: to power gate if true, ungate otherwise
*
* This API uses no smu->mutex lock protection due to:
* 1. It is either called by other IP block(gfx/sdma/vcn/uvd/vce).
* This is guarded to be race condition free by the caller.
* 2. Or get called on user setting request of power_dpm_force_performance_level.
* Under this case, the smu->mutex lock protection is already enforced on
* the parent API smu_force_performance_level of the call path.
*/
int smu_dpm_set_power_gate(struct smu_context *smu, uint32_t block_type,
bool gate)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
switch (block_type) {
/*
* Some legacy code of amdgpu_vcn.c and vcn_v2*.c still uses
* AMD_IP_BLOCK_TYPE_UVD for VCN. So, here both of them are kept.
*/
case AMD_IP_BLOCK_TYPE_UVD:
case AMD_IP_BLOCK_TYPE_VCN:
ret = smu_dpm_set_vcn_enable(smu, !gate);
if (ret)
dev_err(smu->adev->dev, "Failed to power %s VCN!\n",
gate ? "gate" : "ungate");
break;
case AMD_IP_BLOCK_TYPE_GFX:
ret = smu_gfx_off_control(smu, gate);
if (ret)
dev_err(smu->adev->dev, "Failed to %s gfxoff!\n",
gate ? "enable" : "disable");
break;
case AMD_IP_BLOCK_TYPE_SDMA:
ret = smu_powergate_sdma(smu, gate);
if (ret)
dev_err(smu->adev->dev, "Failed to power %s SDMA!\n",
gate ? "gate" : "ungate");
break;
case AMD_IP_BLOCK_TYPE_JPEG:
ret = smu_dpm_set_jpeg_enable(smu, !gate);
if (ret)
dev_err(smu->adev->dev, "Failed to power %s JPEG!\n",
gate ? "gate" : "ungate");
break;
default:
dev_err(smu->adev->dev, "Unsupported block type!\n");
return -EINVAL;
}
return ret;
}
int smu_get_power_num_states(struct smu_context *smu,
struct pp_states_info *state_info)
{
if (!state_info)
return -EINVAL;
/* not support power state */
memset(state_info, 0, sizeof(struct pp_states_info));
state_info->nums = 1;
state_info->states[0] = POWER_STATE_TYPE_DEFAULT;
return 0;
}
bool is_support_sw_smu(struct amdgpu_device *adev)
{
if (adev->asic_type >= CHIP_ARCTURUS)
return true;
return false;
}
int smu_sys_get_pp_table(struct smu_context *smu, void **table)
{
struct smu_table_context *smu_table = &smu->smu_table;
uint32_t powerplay_table_size;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!smu_table->power_play_table && !smu_table->hardcode_pptable)
return -EINVAL;
mutex_lock(&smu->mutex);
if (smu_table->hardcode_pptable)
*table = smu_table->hardcode_pptable;
else
*table = smu_table->power_play_table;
powerplay_table_size = smu_table->power_play_table_size;
mutex_unlock(&smu->mutex);
return powerplay_table_size;
}
int smu_sys_set_pp_table(struct smu_context *smu, void *buf, size_t size)
{
struct smu_table_context *smu_table = &smu->smu_table;
ATOM_COMMON_TABLE_HEADER *header = (ATOM_COMMON_TABLE_HEADER *)buf;
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (header->usStructureSize != size) {
dev_err(smu->adev->dev, "pp table size not matched !\n");
return -EIO;
}
mutex_lock(&smu->mutex);
if (!smu_table->hardcode_pptable)
smu_table->hardcode_pptable = kzalloc(size, GFP_KERNEL);
if (!smu_table->hardcode_pptable) {
ret = -ENOMEM;
goto failed;
}
memcpy(smu_table->hardcode_pptable, buf, size);
smu_table->power_play_table = smu_table->hardcode_pptable;
smu_table->power_play_table_size = size;
/*
* Special hw_fini action(for Navi1x, the DPMs disablement will be
* skipped) may be needed for custom pptable uploading.
*/
smu->uploading_custom_pp_table = true;
ret = smu_reset(smu);
if (ret)
dev_info(smu->adev->dev, "smu reset failed, ret = %d\n", ret);
smu->uploading_custom_pp_table = false;
failed:
mutex_unlock(&smu->mutex);
return ret;
}
static int smu_get_driver_allowed_feature_mask(struct smu_context *smu)
{
struct smu_feature *feature = &smu->smu_feature;
int ret = 0;
uint32_t allowed_feature_mask[SMU_FEATURE_MAX/32];
mutex_lock(&feature->mutex);
bitmap_zero(feature->allowed, SMU_FEATURE_MAX);
mutex_unlock(&feature->mutex);
ret = smu_get_allowed_feature_mask(smu, allowed_feature_mask,
SMU_FEATURE_MAX/32);
if (ret)
return ret;
mutex_lock(&feature->mutex);
bitmap_or(feature->allowed, feature->allowed,
(unsigned long *)allowed_feature_mask,
feature->feature_num);
mutex_unlock(&feature->mutex);
return ret;
}
static int smu_set_funcs(struct amdgpu_device *adev)
{
struct smu_context *smu = &adev->smu;
if (adev->pm.pp_feature & PP_OVERDRIVE_MASK)
smu->od_enabled = true;
switch (adev->asic_type) {
case CHIP_NAVI10:
case CHIP_NAVI14:
case CHIP_NAVI12:
navi10_set_ppt_funcs(smu);
break;
case CHIP_ARCTURUS:
adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
arcturus_set_ppt_funcs(smu);
/* OD is not supported on Arcturus */
smu->od_enabled =false;
break;
case CHIP_SIENNA_CICHLID:
case CHIP_NAVY_FLOUNDER:
sienna_cichlid_set_ppt_funcs(smu);
break;
case CHIP_RENOIR:
renoir_set_ppt_funcs(smu);
break;
default:
return -EINVAL;
}
return 0;
}
static int smu_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
smu->adev = adev;
smu->pm_enabled = !!amdgpu_dpm;
smu->is_apu = false;
mutex_init(&smu->mutex);
return smu_set_funcs(adev);
}
static int smu_late_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
int ret = 0;
if (!smu->pm_enabled)
return 0;
ret = smu_set_default_od_settings(smu);
if (ret) {
dev_err(adev->dev, "Failed to setup default OD settings!\n");
return ret;
}
/*
* Set initialized values (get from vbios) to dpm tables context such as
* gfxclk, memclk, dcefclk, and etc. And enable the DPM feature for each
* type of clks.
*/
ret = smu_set_default_dpm_table(smu);
if (ret) {
dev_err(adev->dev, "Failed to setup default dpm clock tables!\n");
return ret;
}
ret = smu_populate_umd_state_clk(smu);
if (ret) {
dev_err(adev->dev, "Failed to populate UMD state clocks!\n");
return ret;
}
ret = smu_get_asic_power_limits(smu);
if (ret) {
dev_err(adev->dev, "Failed to get asic power limits!\n");
return ret;
}
smu_get_unique_id(smu);
smu_handle_task(&adev->smu,
smu->smu_dpm.dpm_level,
AMD_PP_TASK_COMPLETE_INIT,
false);
return 0;
}
static int smu_init_fb_allocations(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
struct smu_table_context *smu_table = &smu->smu_table;
struct smu_table *tables = smu_table->tables;
struct smu_table *driver_table = &(smu_table->driver_table);
uint32_t max_table_size = 0;
int ret, i;
/* VRAM allocation for tool table */
if (tables[SMU_TABLE_PMSTATUSLOG].size) {
ret = amdgpu_bo_create_kernel(adev,
tables[SMU_TABLE_PMSTATUSLOG].size,
tables[SMU_TABLE_PMSTATUSLOG].align,
tables[SMU_TABLE_PMSTATUSLOG].domain,
&tables[SMU_TABLE_PMSTATUSLOG].bo,
&tables[SMU_TABLE_PMSTATUSLOG].mc_address,
&tables[SMU_TABLE_PMSTATUSLOG].cpu_addr);
if (ret) {
dev_err(adev->dev, "VRAM allocation for tool table failed!\n");
return ret;
}
}
/* VRAM allocation for driver table */
for (i = 0; i < SMU_TABLE_COUNT; i++) {
if (tables[i].size == 0)
continue;
if (i == SMU_TABLE_PMSTATUSLOG)
continue;
if (max_table_size < tables[i].size)
max_table_size = tables[i].size;
}
driver_table->size = max_table_size;
driver_table->align = PAGE_SIZE;
driver_table->domain = AMDGPU_GEM_DOMAIN_VRAM;
ret = amdgpu_bo_create_kernel(adev,
driver_table->size,
driver_table->align,
driver_table->domain,
&driver_table->bo,
&driver_table->mc_address,
&driver_table->cpu_addr);
if (ret) {
dev_err(adev->dev, "VRAM allocation for driver table failed!\n");
if (tables[SMU_TABLE_PMSTATUSLOG].mc_address)
amdgpu_bo_free_kernel(&tables[SMU_TABLE_PMSTATUSLOG].bo,
&tables[SMU_TABLE_PMSTATUSLOG].mc_address,
&tables[SMU_TABLE_PMSTATUSLOG].cpu_addr);
}
return ret;
}
static int smu_fini_fb_allocations(struct smu_context *smu)
{
struct smu_table_context *smu_table = &smu->smu_table;
struct smu_table *tables = smu_table->tables;
struct smu_table *driver_table = &(smu_table->driver_table);
if (!tables)
return 0;
if (tables[SMU_TABLE_PMSTATUSLOG].mc_address)
amdgpu_bo_free_kernel(&tables[SMU_TABLE_PMSTATUSLOG].bo,
&tables[SMU_TABLE_PMSTATUSLOG].mc_address,
&tables[SMU_TABLE_PMSTATUSLOG].cpu_addr);
amdgpu_bo_free_kernel(&driver_table->bo,
&driver_table->mc_address,
&driver_table->cpu_addr);
return 0;
}
/**
* smu_alloc_memory_pool - allocate memory pool in the system memory
*
* @smu: amdgpu_device pointer
*
* This memory pool will be used for SMC use and msg SetSystemVirtualDramAddr
* and DramLogSetDramAddr can notify it changed.
*
* Returns 0 on success, error on failure.
*/
static int smu_alloc_memory_pool(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
struct smu_table_context *smu_table = &smu->smu_table;
struct smu_table *memory_pool = &smu_table->memory_pool;
uint64_t pool_size = smu->pool_size;
int ret = 0;
if (pool_size == SMU_MEMORY_POOL_SIZE_ZERO)
return ret;
memory_pool->size = pool_size;
memory_pool->align = PAGE_SIZE;
memory_pool->domain = AMDGPU_GEM_DOMAIN_GTT;
switch (pool_size) {
case SMU_MEMORY_POOL_SIZE_256_MB:
case SMU_MEMORY_POOL_SIZE_512_MB:
case SMU_MEMORY_POOL_SIZE_1_GB:
case SMU_MEMORY_POOL_SIZE_2_GB:
ret = amdgpu_bo_create_kernel(adev,
memory_pool->size,
memory_pool->align,
memory_pool->domain,
&memory_pool->bo,
&memory_pool->mc_address,
&memory_pool->cpu_addr);
if (ret)
dev_err(adev->dev, "VRAM allocation for dramlog failed!\n");
break;
default:
break;
}
return ret;
}
static int smu_free_memory_pool(struct smu_context *smu)
{
struct smu_table_context *smu_table = &smu->smu_table;
struct smu_table *memory_pool = &smu_table->memory_pool;
if (memory_pool->size == SMU_MEMORY_POOL_SIZE_ZERO)
return 0;
amdgpu_bo_free_kernel(&memory_pool->bo,
&memory_pool->mc_address,
&memory_pool->cpu_addr);
memset(memory_pool, 0, sizeof(struct smu_table));
return 0;
}
static int smu_smc_table_sw_init(struct smu_context *smu)
{
int ret;
/**
* Create smu_table structure, and init smc tables such as
* TABLE_PPTABLE, TABLE_WATERMARKS, TABLE_SMU_METRICS, and etc.
*/
ret = smu_init_smc_tables(smu);
if (ret) {
dev_err(smu->adev->dev, "Failed to init smc tables!\n");
return ret;
}
/**
* Create smu_power_context structure, and allocate smu_dpm_context and
* context size to fill the smu_power_context data.
*/
ret = smu_init_power(smu);
if (ret) {
dev_err(smu->adev->dev, "Failed to init smu_init_power!\n");
return ret;
}
/*
* allocate vram bos to store smc table contents.
*/
ret = smu_init_fb_allocations(smu);
if (ret)
return ret;
ret = smu_alloc_memory_pool(smu);
if (ret)
return ret;
return 0;
}
static int smu_smc_table_sw_fini(struct smu_context *smu)
{
int ret;
ret = smu_free_memory_pool(smu);
if (ret)
return ret;
ret = smu_fini_fb_allocations(smu);
if (ret)
return ret;
ret = smu_fini_power(smu);
if (ret) {
dev_err(smu->adev->dev, "Failed to init smu_fini_power!\n");
return ret;
}
ret = smu_fini_smc_tables(smu);
if (ret) {
dev_err(smu->adev->dev, "Failed to smu_fini_smc_tables!\n");
return ret;
}
return 0;
}
static void smu_throttling_logging_work_fn(struct work_struct *work)
{
struct smu_context *smu = container_of(work, struct smu_context,
throttling_logging_work);
smu_log_thermal_throttling(smu);
}
static int smu_sw_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
int ret;
smu->pool_size = adev->pm.smu_prv_buffer_size;
smu->smu_feature.feature_num = SMU_FEATURE_MAX;
mutex_init(&smu->smu_feature.mutex);
bitmap_zero(smu->smu_feature.supported, SMU_FEATURE_MAX);
bitmap_zero(smu->smu_feature.enabled, SMU_FEATURE_MAX);
bitmap_zero(smu->smu_feature.allowed, SMU_FEATURE_MAX);
mutex_init(&smu->smu_baco.mutex);
smu->smu_baco.state = SMU_BACO_STATE_EXIT;
smu->smu_baco.platform_support = false;
mutex_init(&smu->sensor_lock);
mutex_init(&smu->metrics_lock);
mutex_init(&smu->message_lock);
INIT_WORK(&smu->throttling_logging_work, smu_throttling_logging_work_fn);
smu->watermarks_bitmap = 0;
smu->power_profile_mode = PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT;
smu->default_power_profile_mode = PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT;
smu->workload_mask = 1 << smu->workload_prority[PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT];
smu->workload_prority[PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT] = 0;
smu->workload_prority[PP_SMC_POWER_PROFILE_FULLSCREEN3D] = 1;
smu->workload_prority[PP_SMC_POWER_PROFILE_POWERSAVING] = 2;
smu->workload_prority[PP_SMC_POWER_PROFILE_VIDEO] = 3;
smu->workload_prority[PP_SMC_POWER_PROFILE_VR] = 4;
smu->workload_prority[PP_SMC_POWER_PROFILE_COMPUTE] = 5;
smu->workload_prority[PP_SMC_POWER_PROFILE_CUSTOM] = 6;
smu->workload_setting[0] = PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT;
smu->workload_setting[1] = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
smu->workload_setting[2] = PP_SMC_POWER_PROFILE_POWERSAVING;
smu->workload_setting[3] = PP_SMC_POWER_PROFILE_VIDEO;
smu->workload_setting[4] = PP_SMC_POWER_PROFILE_VR;
smu->workload_setting[5] = PP_SMC_POWER_PROFILE_COMPUTE;
smu->workload_setting[6] = PP_SMC_POWER_PROFILE_CUSTOM;
smu->display_config = &adev->pm.pm_display_cfg;
smu->smu_dpm.dpm_level = AMD_DPM_FORCED_LEVEL_AUTO;
smu->smu_dpm.requested_dpm_level = AMD_DPM_FORCED_LEVEL_AUTO;
ret = smu_init_microcode(smu);
if (ret) {
dev_err(adev->dev, "Failed to load smu firmware!\n");
return ret;
}
ret = smu_smc_table_sw_init(smu);
if (ret) {
dev_err(adev->dev, "Failed to sw init smc table!\n");
return ret;
}
ret = smu_register_irq_handler(smu);
if (ret) {
dev_err(adev->dev, "Failed to register smc irq handler!\n");
return ret;
}
return 0;
}
static int smu_sw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
int ret;
ret = smu_smc_table_sw_fini(smu);
if (ret) {
dev_err(adev->dev, "Failed to sw fini smc table!\n");
return ret;
}
smu_fini_microcode(smu);
return 0;
}
static int smu_get_thermal_temperature_range(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
struct smu_temperature_range *range =
&smu->thermal_range;
int ret = 0;
if (!smu->ppt_funcs->get_thermal_temperature_range)
return 0;
ret = smu->ppt_funcs->get_thermal_temperature_range(smu, range);
if (ret)
return ret;
adev->pm.dpm.thermal.min_temp = range->min;
adev->pm.dpm.thermal.max_temp = range->max;
adev->pm.dpm.thermal.max_edge_emergency_temp = range->edge_emergency_max;
adev->pm.dpm.thermal.min_hotspot_temp = range->hotspot_min;
adev->pm.dpm.thermal.max_hotspot_crit_temp = range->hotspot_crit_max;
adev->pm.dpm.thermal.max_hotspot_emergency_temp = range->hotspot_emergency_max;
adev->pm.dpm.thermal.min_mem_temp = range->mem_min;
adev->pm.dpm.thermal.max_mem_crit_temp = range->mem_crit_max;
adev->pm.dpm.thermal.max_mem_emergency_temp = range->mem_emergency_max;
return ret;
}
static int smu_smc_hw_setup(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
uint32_t pcie_gen = 0, pcie_width = 0;
int ret;
if (adev->in_suspend && smu_is_dpm_running(smu)) {
dev_info(adev->dev, "dpm has been enabled\n");
return 0;
}
ret = smu_init_display_count(smu, 0);
if (ret) {
dev_info(adev->dev, "Failed to pre-set display count as 0!\n");
return ret;
}
ret = smu_set_driver_table_location(smu);
if (ret) {
dev_err(adev->dev, "Failed to SetDriverDramAddr!\n");
return ret;
}
/*
* Set PMSTATUSLOG table bo address with SetToolsDramAddr MSG for tools.
*/
ret = smu_set_tool_table_location(smu);
if (ret) {
dev_err(adev->dev, "Failed to SetToolsDramAddr!\n");
return ret;
}
/*
* Use msg SetSystemVirtualDramAddr and DramLogSetDramAddr can notify
* pool location.
*/
ret = smu_notify_memory_pool_location(smu);
if (ret) {
dev_err(adev->dev, "Failed to SetDramLogDramAddr!\n");
return ret;
}
/* smu_dump_pptable(smu); */
/*
* Copy pptable bo in the vram to smc with SMU MSGs such as
* SetDriverDramAddr and TransferTableDram2Smu.
*/
ret = smu_write_pptable(smu);
if (ret) {
dev_err(adev->dev, "Failed to transfer pptable to SMC!\n");
return ret;
}
/* issue Run*Btc msg */
ret = smu_run_btc(smu);
if (ret)
return ret;
ret = smu_feature_set_allowed_mask(smu);
if (ret) {
dev_err(adev->dev, "Failed to set driver allowed features mask!\n");
return ret;
}
ret = smu_system_features_control(smu, true);
if (ret) {
dev_err(adev->dev, "Failed to enable requested dpm features!\n");
return ret;
}
if (!smu_is_dpm_running(smu))
dev_info(adev->dev, "dpm has been disabled\n");
if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4)
pcie_gen = 3;
else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3)
pcie_gen = 2;
else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2)
pcie_gen = 1;
else if (adev->pm.pcie_gen_mask & CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1)
pcie_gen = 0;
/* Bit 31:16: LCLK DPM level. 0 is DPM0, and 1 is DPM1
* Bit 15:8: PCIE GEN, 0 to 3 corresponds to GEN1 to GEN4
* Bit 7:0: PCIE lane width, 1 to 7 corresponds is x1 to x32
*/
if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X16)
pcie_width = 6;
else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X12)
pcie_width = 5;
else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X8)
pcie_width = 4;
else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X4)
pcie_width = 3;
else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X2)
pcie_width = 2;
else if (adev->pm.pcie_mlw_mask & CAIL_PCIE_LINK_WIDTH_SUPPORT_X1)
pcie_width = 1;
ret = smu_update_pcie_parameters(smu, pcie_gen, pcie_width);
if (ret) {
dev_err(adev->dev, "Attempt to override pcie params failed!\n");
return ret;
}
ret = smu_get_thermal_temperature_range(smu);
if (ret) {
dev_err(adev->dev, "Failed to get thermal temperature ranges!\n");
return ret;
}
ret = smu_enable_thermal_alert(smu);
if (ret) {
dev_err(adev->dev, "Failed to enable thermal alert!\n");
return ret;
}
ret = smu_i2c_init(smu, &adev->pm.smu_i2c);
if (ret)
return ret;
ret = smu_disable_umc_cdr_12gbps_workaround(smu);
if (ret) {
dev_err(adev->dev, "Workaround failed to disable UMC CDR feature on 12Gbps SKU!\n");
return ret;
}
/*
* For Navi1X, manually switch it to AC mode as PMFW
* may boot it with DC mode.
*/
ret = smu_set_power_source(smu,
adev->pm.ac_power ? SMU_POWER_SOURCE_AC :
SMU_POWER_SOURCE_DC);
if (ret) {
dev_err(adev->dev, "Failed to switch to %s mode!\n", adev->pm.ac_power ? "AC" : "DC");
return ret;
}
ret = smu_notify_display_change(smu);
if (ret)
return ret;
/*
* Set min deep sleep dce fclk with bootup value from vbios via
* SetMinDeepSleepDcefclk MSG.
*/
ret = smu_set_min_dcef_deep_sleep(smu,
smu->smu_table.boot_values.dcefclk / 100);
if (ret)
return ret;
return ret;
}
static int smu_start_smc_engine(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
int ret = 0;
if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
if (adev->asic_type < CHIP_NAVI10) {
if (smu->ppt_funcs->load_microcode) {
ret = smu->ppt_funcs->load_microcode(smu);
if (ret)
return ret;
}
}
}
if (smu->ppt_funcs->check_fw_status) {
ret = smu->ppt_funcs->check_fw_status(smu);
if (ret) {
dev_err(adev->dev, "SMC is not ready\n");
return ret;
}
}
/*
* Send msg GetDriverIfVersion to check if the return value is equal
* with DRIVER_IF_VERSION of smc header.
*/
ret = smu_check_fw_version(smu);
if (ret)
return ret;
return ret;
}
static int smu_hw_init(void *handle)
{
int ret;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev)) {
smu->pm_enabled = false;
return 0;
}
ret = smu_start_smc_engine(smu);
if (ret) {
dev_err(adev->dev, "SMC engine is not correctly up!\n");
return ret;
}
if (smu->is_apu) {
smu_powergate_sdma(&adev->smu, false);
smu_dpm_set_vcn_enable(smu, true);
smu_dpm_set_jpeg_enable(smu, true);
smu_set_gfx_cgpg(&adev->smu, true);
}
if (!smu->pm_enabled)
return 0;
/* get boot_values from vbios to set revision, gfxclk, and etc. */
ret = smu_get_vbios_bootup_values(smu);
if (ret) {
dev_err(adev->dev, "Failed to get VBIOS boot clock values!\n");
return ret;
}
ret = smu_setup_pptable(smu);
if (ret) {
dev_err(adev->dev, "Failed to setup pptable!\n");
return ret;
}
ret = smu_get_driver_allowed_feature_mask(smu);
if (ret)
return ret;
ret = smu_smc_hw_setup(smu);
if (ret) {
dev_err(adev->dev, "Failed to setup smc hw!\n");
return ret;
}
/*
* Move maximum sustainable clock retrieving here considering
* 1. It is not needed on resume(from S3).
* 2. DAL settings come between .hw_init and .late_init of SMU.
* And DAL needs to know the maximum sustainable clocks. Thus
* it cannot be put in .late_init().
*/
ret = smu_init_max_sustainable_clocks(smu);
if (ret) {
dev_err(adev->dev, "Failed to init max sustainable clocks!\n");
return ret;
}
adev->pm.dpm_enabled = true;
dev_info(adev->dev, "SMU is initialized successfully!\n");
return 0;
}
static int smu_disable_dpms(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
int ret = 0;
bool use_baco = !smu->is_apu &&
((adev->in_gpu_reset &&
(amdgpu_asic_reset_method(adev) == AMD_RESET_METHOD_BACO)) ||
((adev->in_runpm || adev->in_hibernate) && amdgpu_asic_supports_baco(adev)));
/*
* For custom pptable uploading, skip the DPM features
* disable process on Navi1x ASICs.
* - As the gfx related features are under control of
* RLC on those ASICs. RLC reinitialization will be
* needed to reenable them. That will cost much more
* efforts.
*
* - SMU firmware can handle the DPM reenablement
* properly.
*/
if (smu->uploading_custom_pp_table &&
(adev->asic_type >= CHIP_NAVI10) &&
(adev->asic_type <= CHIP_NAVI12))
return 0;
/*
* For Sienna_Cichlid, PMFW will handle the features disablement properly
* on BACO in. Driver involvement is unnecessary.
*/
if ((adev->asic_type == CHIP_SIENNA_CICHLID) &&
use_baco)
return 0;
/*
* For gpu reset, runpm and hibernation through BACO,
* BACO feature has to be kept enabled.
*/
if (use_baco && smu_feature_is_enabled(smu, SMU_FEATURE_BACO_BIT)) {
ret = smu_disable_all_features_with_exception(smu,
SMU_FEATURE_BACO_BIT);
if (ret)
dev_err(adev->dev, "Failed to disable smu features except BACO.\n");
} else {
ret = smu_system_features_control(smu, false);
if (ret)
dev_err(adev->dev, "Failed to disable smu features.\n");
}
if (adev->asic_type >= CHIP_NAVI10 &&
adev->gfx.rlc.funcs->stop)
adev->gfx.rlc.funcs->stop(adev);
return ret;
}
static int smu_smc_hw_cleanup(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
int ret = 0;
smu_i2c_fini(smu, &adev->pm.smu_i2c);
cancel_work_sync(&smu->throttling_logging_work);
ret = smu_disable_thermal_alert(smu);
if (ret) {
dev_err(adev->dev, "Fail to disable thermal alert!\n");
return ret;
}
ret = smu_disable_dpms(smu);
if (ret) {
dev_err(adev->dev, "Fail to disable dpm features!\n");
return ret;
}
return 0;
}
static int smu_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
int ret = 0;
if (amdgpu_sriov_vf(adev)&& !amdgpu_sriov_is_pp_one_vf(adev))
return 0;
if (smu->is_apu) {
smu_powergate_sdma(&adev->smu, true);
smu_dpm_set_vcn_enable(smu, false);
smu_dpm_set_jpeg_enable(smu, false);
}
if (!smu->pm_enabled)
return 0;
adev->pm.dpm_enabled = false;
ret = smu_smc_hw_cleanup(smu);
if (ret)
return ret;
return 0;
}
int smu_reset(struct smu_context *smu)
{
struct amdgpu_device *adev = smu->adev;
int ret = 0;
ret = smu_hw_fini(adev);
if (ret)
return ret;
ret = smu_hw_init(adev);
if (ret)
return ret;
ret = smu_late_init(adev);
return ret;
}
static int smu_suspend(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
int ret;
if (amdgpu_sriov_vf(adev)&& !amdgpu_sriov_is_pp_one_vf(adev))
return 0;
if (!smu->pm_enabled)
return 0;
adev->pm.dpm_enabled = false;
ret = smu_smc_hw_cleanup(smu);
if (ret)
return ret;
smu->watermarks_bitmap &= ~(WATERMARKS_LOADED);
if (smu->is_apu)
smu_set_gfx_cgpg(&adev->smu, false);
return 0;
}
static int smu_resume(void *handle)
{
int ret;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
struct smu_context *smu = &adev->smu;
if (amdgpu_sriov_vf(adev)&& !amdgpu_sriov_is_pp_one_vf(adev))
return 0;
if (!smu->pm_enabled)
return 0;
dev_info(adev->dev, "SMU is resuming...\n");
ret = smu_start_smc_engine(smu);
if (ret) {
dev_err(adev->dev, "SMC engine is not correctly up!\n");
return ret;
}
ret = smu_smc_hw_setup(smu);
if (ret) {
dev_err(adev->dev, "Failed to setup smc hw!\n");
return ret;
}
if (smu->is_apu)
smu_set_gfx_cgpg(&adev->smu, true);
smu->disable_uclk_switch = 0;
adev->pm.dpm_enabled = true;
dev_info(adev->dev, "SMU is resumed successfully!\n");
return 0;
}
int smu_display_configuration_change(struct smu_context *smu,
const struct amd_pp_display_configuration *display_config)
{
int index = 0;
int num_of_active_display = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!display_config)
return -EINVAL;
mutex_lock(&smu->mutex);
smu_set_min_dcef_deep_sleep(smu,
display_config->min_dcef_deep_sleep_set_clk / 100);
for (index = 0; index < display_config->num_path_including_non_display; index++) {
if (display_config->displays[index].controller_id != 0)
num_of_active_display++;
}
smu_set_active_display_count(smu, num_of_active_display);
smu_store_cc6_data(smu, display_config->cpu_pstate_separation_time,
display_config->cpu_cc6_disable,
display_config->cpu_pstate_disable,
display_config->nb_pstate_switch_disable);
mutex_unlock(&smu->mutex);
return 0;
}
static int smu_get_clock_info(struct smu_context *smu,
struct smu_clock_info *clk_info,
enum smu_perf_level_designation designation)
{
int ret;
struct smu_performance_level level = {0};
if (!clk_info)
return -EINVAL;
ret = smu_get_perf_level(smu, PERF_LEVEL_ACTIVITY, &level);
if (ret)
return -EINVAL;
clk_info->min_mem_clk = level.memory_clock;
clk_info->min_eng_clk = level.core_clock;
clk_info->min_bus_bandwidth = level.non_local_mem_freq * level.non_local_mem_width;
ret = smu_get_perf_level(smu, designation, &level);
if (ret)
return -EINVAL;
clk_info->min_mem_clk = level.memory_clock;
clk_info->min_eng_clk = level.core_clock;
clk_info->min_bus_bandwidth = level.non_local_mem_freq * level.non_local_mem_width;
return 0;
}
int smu_get_current_clocks(struct smu_context *smu,
struct amd_pp_clock_info *clocks)
{
struct amd_pp_simple_clock_info simple_clocks = {0};
struct smu_clock_info hw_clocks;
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
smu_get_dal_power_level(smu, &simple_clocks);
if (smu->support_power_containment)
ret = smu_get_clock_info(smu, &hw_clocks,
PERF_LEVEL_POWER_CONTAINMENT);
else
ret = smu_get_clock_info(smu, &hw_clocks, PERF_LEVEL_ACTIVITY);
if (ret) {
dev_err(smu->adev->dev, "Error in smu_get_clock_info\n");
goto failed;
}
clocks->min_engine_clock = hw_clocks.min_eng_clk;
clocks->max_engine_clock = hw_clocks.max_eng_clk;
clocks->min_memory_clock = hw_clocks.min_mem_clk;
clocks->max_memory_clock = hw_clocks.max_mem_clk;
clocks->min_bus_bandwidth = hw_clocks.min_bus_bandwidth;
clocks->max_bus_bandwidth = hw_clocks.max_bus_bandwidth;
clocks->max_engine_clock_in_sr = hw_clocks.max_eng_clk;
clocks->min_engine_clock_in_sr = hw_clocks.min_eng_clk;
if (simple_clocks.level == 0)
clocks->max_clocks_state = PP_DAL_POWERLEVEL_7;
else
clocks->max_clocks_state = simple_clocks.level;
if (!smu_get_current_shallow_sleep_clocks(smu, &hw_clocks)) {
clocks->max_engine_clock_in_sr = hw_clocks.max_eng_clk;
clocks->min_engine_clock_in_sr = hw_clocks.min_eng_clk;
}
failed:
mutex_unlock(&smu->mutex);
return ret;
}
static int smu_set_clockgating_state(void *handle,
enum amd_clockgating_state state)
{
return 0;
}
static int smu_set_powergating_state(void *handle,
enum amd_powergating_state state)
{
return 0;
}
static int smu_enable_umd_pstate(void *handle,
enum amd_dpm_forced_level *level)
{
uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD |
AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK |
AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK |
AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
struct smu_context *smu = (struct smu_context*)(handle);
struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
if (!smu->is_apu && !smu_dpm_ctx->dpm_context)
return -EINVAL;
if (!(smu_dpm_ctx->dpm_level & profile_mode_mask)) {
/* enter umd pstate, save current level, disable gfx cg*/
if (*level & profile_mode_mask) {
smu_dpm_ctx->saved_dpm_level = smu_dpm_ctx->dpm_level;
smu_dpm_ctx->enable_umd_pstate = true;
amdgpu_device_ip_set_powergating_state(smu->adev,
AMD_IP_BLOCK_TYPE_GFX,
AMD_PG_STATE_UNGATE);
amdgpu_device_ip_set_clockgating_state(smu->adev,
AMD_IP_BLOCK_TYPE_GFX,
AMD_CG_STATE_UNGATE);
}
} else {
/* exit umd pstate, restore level, enable gfx cg*/
if (!(*level & profile_mode_mask)) {
if (*level == AMD_DPM_FORCED_LEVEL_PROFILE_EXIT)
*level = smu_dpm_ctx->saved_dpm_level;
smu_dpm_ctx->enable_umd_pstate = false;
amdgpu_device_ip_set_clockgating_state(smu->adev,
AMD_IP_BLOCK_TYPE_GFX,
AMD_CG_STATE_GATE);
amdgpu_device_ip_set_powergating_state(smu->adev,
AMD_IP_BLOCK_TYPE_GFX,
AMD_PG_STATE_GATE);
}
}
return 0;
}
static int smu_adjust_power_state_dynamic(struct smu_context *smu,
enum amd_dpm_forced_level level,
bool skip_display_settings)
{
int ret = 0;
int index = 0;
long workload;
struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
if (!skip_display_settings) {
ret = smu_display_config_changed(smu);
if (ret) {
dev_err(smu->adev->dev, "Failed to change display config!");
return ret;
}
}
ret = smu_apply_clocks_adjust_rules(smu);
if (ret) {
dev_err(smu->adev->dev, "Failed to apply clocks adjust rules!");
return ret;
}
if (!skip_display_settings) {
ret = smu_notify_smc_display_config(smu);
if (ret) {
dev_err(smu->adev->dev, "Failed to notify smc display config!");
return ret;
}
}
if (smu_dpm_ctx->dpm_level != level) {
ret = smu_asic_set_performance_level(smu, level);
if (ret) {
dev_err(smu->adev->dev, "Failed to set performance level!");
return ret;
}
/* update the saved copy */
smu_dpm_ctx->dpm_level = level;
}
if (smu_dpm_ctx->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
index = fls(smu->workload_mask);
index = index > 0 && index <= WORKLOAD_POLICY_MAX ? index - 1 : 0;
workload = smu->workload_setting[index];
if (smu->power_profile_mode != workload)
smu_set_power_profile_mode(smu, &workload, 0, false);
}
return ret;
}
int smu_handle_task(struct smu_context *smu,
enum amd_dpm_forced_level level,
enum amd_pp_task task_id,
bool lock_needed)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (lock_needed)
mutex_lock(&smu->mutex);
switch (task_id) {
case AMD_PP_TASK_DISPLAY_CONFIG_CHANGE:
ret = smu_pre_display_config_changed(smu);
if (ret)
goto out;
ret = smu_set_cpu_power_state(smu);
if (ret)
goto out;
ret = smu_adjust_power_state_dynamic(smu, level, false);
break;
case AMD_PP_TASK_COMPLETE_INIT:
case AMD_PP_TASK_READJUST_POWER_STATE:
ret = smu_adjust_power_state_dynamic(smu, level, true);
break;
default:
break;
}
out:
if (lock_needed)
mutex_unlock(&smu->mutex);
return ret;
}
int smu_switch_power_profile(struct smu_context *smu,
enum PP_SMC_POWER_PROFILE type,
bool en)
{
struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
long workload;
uint32_t index;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!(type < PP_SMC_POWER_PROFILE_CUSTOM))
return -EINVAL;
mutex_lock(&smu->mutex);
if (!en) {
smu->workload_mask &= ~(1 << smu->workload_prority[type]);
index = fls(smu->workload_mask);
index = index > 0 && index <= WORKLOAD_POLICY_MAX ? index - 1 : 0;
workload = smu->workload_setting[index];
} else {
smu->workload_mask |= (1 << smu->workload_prority[type]);
index = fls(smu->workload_mask);
index = index <= WORKLOAD_POLICY_MAX ? index - 1 : 0;
workload = smu->workload_setting[index];
}
if (smu_dpm_ctx->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
smu_set_power_profile_mode(smu, &workload, 0, false);
mutex_unlock(&smu->mutex);
return 0;
}
enum amd_dpm_forced_level smu_get_performance_level(struct smu_context *smu)
{
struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
enum amd_dpm_forced_level level;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!smu->is_apu && !smu_dpm_ctx->dpm_context)
return -EINVAL;
mutex_lock(&(smu->mutex));
level = smu_dpm_ctx->dpm_level;
mutex_unlock(&(smu->mutex));
return level;
}
int smu_force_performance_level(struct smu_context *smu, enum amd_dpm_forced_level level)
{
struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!smu->is_apu && !smu_dpm_ctx->dpm_context)
return -EINVAL;
mutex_lock(&smu->mutex);
ret = smu_enable_umd_pstate(smu, &level);
if (ret) {
mutex_unlock(&smu->mutex);
return ret;
}
ret = smu_handle_task(smu, level,
AMD_PP_TASK_READJUST_POWER_STATE,
false);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_display_count(struct smu_context *smu, uint32_t count)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
ret = smu_init_display_count(smu, count);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_force_clk_levels(struct smu_context *smu,
enum smu_clk_type clk_type,
uint32_t mask)
{
struct smu_dpm_context *smu_dpm_ctx = &(smu->smu_dpm);
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (smu_dpm_ctx->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {
dev_dbg(smu->adev->dev, "force clock level is for dpm manual mode only.\n");
return -EINVAL;
}
mutex_lock(&smu->mutex);
if (smu->ppt_funcs && smu->ppt_funcs->force_clk_levels)
ret = smu->ppt_funcs->force_clk_levels(smu, clk_type, mask);
mutex_unlock(&smu->mutex);
return ret;
}
/*
* On system suspending or resetting, the dpm_enabled
* flag will be cleared. So that those SMU services which
* are not supported will be gated.
* However, the mp1 state setting should still be granted
* even if the dpm_enabled cleared.
*/
int smu_set_mp1_state(struct smu_context *smu,
enum pp_mp1_state mp1_state)
{
uint16_t msg;
int ret;
if (!smu->pm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
switch (mp1_state) {
case PP_MP1_STATE_SHUTDOWN:
msg = SMU_MSG_PrepareMp1ForShutdown;
break;
case PP_MP1_STATE_UNLOAD:
msg = SMU_MSG_PrepareMp1ForUnload;
break;
case PP_MP1_STATE_RESET:
msg = SMU_MSG_PrepareMp1ForReset;
break;
case PP_MP1_STATE_NONE:
default:
mutex_unlock(&smu->mutex);
return 0;
}
ret = smu_send_smc_msg(smu, msg, NULL);
/* some asics may not support those messages */
if (ret == -EINVAL)
ret = 0;
if (ret)
dev_err(smu->adev->dev, "[PrepareMp1] Failed!\n");
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_df_cstate(struct smu_context *smu,
enum pp_df_cstate state)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!smu->ppt_funcs || !smu->ppt_funcs->set_df_cstate)
return 0;
mutex_lock(&smu->mutex);
ret = smu->ppt_funcs->set_df_cstate(smu, state);
if (ret)
dev_err(smu->adev->dev, "[SetDfCstate] failed!\n");
mutex_unlock(&smu->mutex);
return ret;
}
int smu_allow_xgmi_power_down(struct smu_context *smu, bool en)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!smu->ppt_funcs || !smu->ppt_funcs->allow_xgmi_power_down)
return 0;
mutex_lock(&smu->mutex);
ret = smu->ppt_funcs->allow_xgmi_power_down(smu, en);
if (ret)
dev_err(smu->adev->dev, "[AllowXgmiPowerDown] failed!\n");
mutex_unlock(&smu->mutex);
return ret;
}
int smu_write_watermarks_table(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
ret = smu_set_watermarks_table(smu, NULL);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_watermarks_for_clock_ranges(struct smu_context *smu,
struct dm_pp_wm_sets_with_clock_ranges_soc15 *clock_ranges)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (!smu->disable_watermark &&
smu_feature_is_enabled(smu, SMU_FEATURE_DPM_DCEFCLK_BIT) &&
smu_feature_is_enabled(smu, SMU_FEATURE_DPM_SOCCLK_BIT)) {
ret = smu_set_watermarks_table(smu, clock_ranges);
if (!(smu->watermarks_bitmap & WATERMARKS_EXIST)) {
smu->watermarks_bitmap |= WATERMARKS_EXIST;
smu->watermarks_bitmap &= ~WATERMARKS_LOADED;
}
}
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_ac_dc(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
/* controlled by firmware */
if (smu->dc_controlled_by_gpio)
return 0;
mutex_lock(&smu->mutex);
ret = smu_set_power_source(smu,
smu->adev->pm.ac_power ? SMU_POWER_SOURCE_AC :
SMU_POWER_SOURCE_DC);
if (ret)
dev_err(smu->adev->dev, "Failed to switch to %s mode!\n",
smu->adev->pm.ac_power ? "AC" : "DC");
mutex_unlock(&smu->mutex);
return ret;
}
const struct amd_ip_funcs smu_ip_funcs = {
.name = "smu",
.early_init = smu_early_init,
.late_init = smu_late_init,
.sw_init = smu_sw_init,
.sw_fini = smu_sw_fini,
.hw_init = smu_hw_init,
.hw_fini = smu_hw_fini,
.suspend = smu_suspend,
.resume = smu_resume,
.is_idle = NULL,
.check_soft_reset = NULL,
.wait_for_idle = NULL,
.soft_reset = NULL,
.set_clockgating_state = smu_set_clockgating_state,
.set_powergating_state = smu_set_powergating_state,
.enable_umd_pstate = smu_enable_umd_pstate,
};
const struct amdgpu_ip_block_version smu_v11_0_ip_block =
{
.type = AMD_IP_BLOCK_TYPE_SMC,
.major = 11,
.minor = 0,
.rev = 0,
.funcs = &smu_ip_funcs,
};
const struct amdgpu_ip_block_version smu_v12_0_ip_block =
{
.type = AMD_IP_BLOCK_TYPE_SMC,
.major = 12,
.minor = 0,
.rev = 0,
.funcs = &smu_ip_funcs,
};
int smu_load_microcode(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->load_microcode)
ret = smu->ppt_funcs->load_microcode(smu);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_check_fw_status(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->check_fw_status)
ret = smu->ppt_funcs->check_fw_status(smu);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_gfx_cgpg(struct smu_context *smu, bool enabled)
{
int ret = 0;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_gfx_cgpg)
ret = smu->ppt_funcs->set_gfx_cgpg(smu, enabled);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_fan_speed_rpm(struct smu_context *smu, uint32_t speed)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_fan_speed_rpm)
ret = smu->ppt_funcs->set_fan_speed_rpm(smu, speed);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_power_limit(struct smu_context *smu,
uint32_t *limit,
bool max_setting)
{
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
*limit = (max_setting ? smu->max_power_limit : smu->current_power_limit);
mutex_unlock(&smu->mutex);
return 0;
}
int smu_set_power_limit(struct smu_context *smu, uint32_t limit)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (limit > smu->max_power_limit) {
dev_err(smu->adev->dev,
"New power limit (%d) is over the max allowed %d\n",
limit, smu->max_power_limit);
goto out;
}
if (!limit)
limit = smu->current_power_limit;
if (smu->ppt_funcs->set_power_limit)
ret = smu->ppt_funcs->set_power_limit(smu, limit);
out:
mutex_unlock(&smu->mutex);
return ret;
}
int smu_print_clk_levels(struct smu_context *smu, enum smu_clk_type clk_type, char *buf)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->print_clk_levels)
ret = smu->ppt_funcs->print_clk_levels(smu, clk_type, buf);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_od_percentage(struct smu_context *smu, enum smu_clk_type type)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_od_percentage)
ret = smu->ppt_funcs->get_od_percentage(smu, type);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_od_percentage(struct smu_context *smu, enum smu_clk_type type, uint32_t value)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_od_percentage)
ret = smu->ppt_funcs->set_od_percentage(smu, type, value);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_od_edit_dpm_table(struct smu_context *smu,
enum PP_OD_DPM_TABLE_COMMAND type,
long *input, uint32_t size)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->od_edit_dpm_table) {
ret = smu->ppt_funcs->od_edit_dpm_table(smu, type, input, size);
if (!ret && (type == PP_OD_COMMIT_DPM_TABLE))
ret = smu_handle_task(smu,
smu->smu_dpm.dpm_level,
AMD_PP_TASK_READJUST_POWER_STATE,
false);
}
mutex_unlock(&smu->mutex);
return ret;
}
int smu_read_sensor(struct smu_context *smu,
enum amd_pp_sensors sensor,
void *data, uint32_t *size)
{
struct smu_umd_pstate_table *pstate_table =
&smu->pstate_table;
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (!data || !size)
return -EINVAL;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->read_sensor)
if (!smu->ppt_funcs->read_sensor(smu, sensor, data, size))
goto unlock;
switch (sensor) {
case AMDGPU_PP_SENSOR_STABLE_PSTATE_SCLK:
*((uint32_t *)data) = pstate_table->gfxclk_pstate.standard * 100;
*size = 4;
break;
case AMDGPU_PP_SENSOR_STABLE_PSTATE_MCLK:
*((uint32_t *)data) = pstate_table->uclk_pstate.standard * 100;
*size = 4;
break;
case AMDGPU_PP_SENSOR_ENABLED_SMC_FEATURES_MASK:
ret = smu_feature_get_enabled_mask(smu, (uint32_t *)data, 2);
*size = 8;
break;
case AMDGPU_PP_SENSOR_UVD_POWER:
*(uint32_t *)data = smu_feature_is_enabled(smu, SMU_FEATURE_DPM_UVD_BIT) ? 1 : 0;
*size = 4;
break;
case AMDGPU_PP_SENSOR_VCE_POWER:
*(uint32_t *)data = smu_feature_is_enabled(smu, SMU_FEATURE_DPM_VCE_BIT) ? 1 : 0;
*size = 4;
break;
case AMDGPU_PP_SENSOR_VCN_POWER_STATE:
*(uint32_t *)data = smu->smu_power.power_gate.vcn_gated ? 0 : 1;
*size = 4;
break;
case AMDGPU_PP_SENSOR_MIN_FAN_RPM:
*(uint32_t *)data = 0;
*size = 4;
break;
default:
*size = 0;
ret = -EOPNOTSUPP;
break;
}
unlock:
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_power_profile_mode(struct smu_context *smu, char *buf)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_power_profile_mode)
ret = smu->ppt_funcs->get_power_profile_mode(smu, buf);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_power_profile_mode(struct smu_context *smu,
long *param,
uint32_t param_size,
bool lock_needed)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (lock_needed)
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_power_profile_mode)
ret = smu->ppt_funcs->set_power_profile_mode(smu, param, param_size);
if (lock_needed)
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_fan_control_mode(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_fan_control_mode)
ret = smu->ppt_funcs->get_fan_control_mode(smu);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_fan_control_mode(struct smu_context *smu, int value)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_fan_control_mode)
ret = smu->ppt_funcs->set_fan_control_mode(smu, value);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_fan_speed_percent(struct smu_context *smu, uint32_t *speed)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_fan_speed_percent)
ret = smu->ppt_funcs->get_fan_speed_percent(smu, speed);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_fan_speed_percent(struct smu_context *smu, uint32_t speed)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_fan_speed_percent)
ret = smu->ppt_funcs->set_fan_speed_percent(smu, speed);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_fan_speed_rpm(struct smu_context *smu, uint32_t *speed)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_fan_speed_rpm)
ret = smu->ppt_funcs->get_fan_speed_rpm(smu, speed);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_deep_sleep_dcefclk(struct smu_context *smu, int clk)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
ret = smu_set_min_dcef_deep_sleep(smu, clk);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_active_display_count(struct smu_context *smu, uint32_t count)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
if (smu->ppt_funcs->set_active_display_count)
ret = smu->ppt_funcs->set_active_display_count(smu, count);
return ret;
}
int smu_get_clock_by_type(struct smu_context *smu,
enum amd_pp_clock_type type,
struct amd_pp_clocks *clocks)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_clock_by_type)
ret = smu->ppt_funcs->get_clock_by_type(smu, type, clocks);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_max_high_clocks(struct smu_context *smu,
struct amd_pp_simple_clock_info *clocks)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_max_high_clocks)
ret = smu->ppt_funcs->get_max_high_clocks(smu, clocks);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_clock_by_type_with_latency(struct smu_context *smu,
enum smu_clk_type clk_type,
struct pp_clock_levels_with_latency *clocks)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_clock_by_type_with_latency)
ret = smu->ppt_funcs->get_clock_by_type_with_latency(smu, clk_type, clocks);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_clock_by_type_with_voltage(struct smu_context *smu,
enum amd_pp_clock_type type,
struct pp_clock_levels_with_voltage *clocks)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_clock_by_type_with_voltage)
ret = smu->ppt_funcs->get_clock_by_type_with_voltage(smu, type, clocks);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_display_clock_voltage_request(struct smu_context *smu,
struct pp_display_clock_request *clock_req)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->display_clock_voltage_request)
ret = smu->ppt_funcs->display_clock_voltage_request(smu, clock_req);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_display_disable_memory_clock_switch(struct smu_context *smu, bool disable_memory_clock_switch)
{
int ret = -EINVAL;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->display_disable_memory_clock_switch)
ret = smu->ppt_funcs->display_disable_memory_clock_switch(smu, disable_memory_clock_switch);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_notify_smu_enable_pwe(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->notify_smu_enable_pwe)
ret = smu->ppt_funcs->notify_smu_enable_pwe(smu);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_set_xgmi_pstate(struct smu_context *smu,
uint32_t pstate)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_xgmi_pstate)
ret = smu->ppt_funcs->set_xgmi_pstate(smu, pstate);
mutex_unlock(&smu->mutex);
if(ret)
dev_err(smu->adev->dev, "Failed to set XGMI pstate!\n");
return ret;
}
int smu_set_azalia_d3_pme(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->set_azalia_d3_pme)
ret = smu->ppt_funcs->set_azalia_d3_pme(smu);
mutex_unlock(&smu->mutex);
return ret;
}
/*
* On system suspending or resetting, the dpm_enabled
* flag will be cleared. So that those SMU services which
* are not supported will be gated.
*
* However, the baco/mode1 reset should still be granted
* as they are still supported and necessary.
*/
bool smu_baco_is_support(struct smu_context *smu)
{
bool ret = false;
if (!smu->pm_enabled)
return false;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs && smu->ppt_funcs->baco_is_support)
ret = smu->ppt_funcs->baco_is_support(smu);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_baco_get_state(struct smu_context *smu, enum smu_baco_state *state)
{
if (smu->ppt_funcs->baco_get_state)
return -EINVAL;
mutex_lock(&smu->mutex);
*state = smu->ppt_funcs->baco_get_state(smu);
mutex_unlock(&smu->mutex);
return 0;
}
int smu_baco_enter(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->baco_enter)
ret = smu->ppt_funcs->baco_enter(smu);
mutex_unlock(&smu->mutex);
if (ret)
dev_err(smu->adev->dev, "Failed to enter BACO state!\n");
return ret;
}
int smu_baco_exit(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->baco_exit)
ret = smu->ppt_funcs->baco_exit(smu);
mutex_unlock(&smu->mutex);
if (ret)
dev_err(smu->adev->dev, "Failed to exit BACO state!\n");
return ret;
}
bool smu_mode1_reset_is_support(struct smu_context *smu)
{
bool ret = false;
if (!smu->pm_enabled)
return false;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs && smu->ppt_funcs->mode1_reset_is_support)
ret = smu->ppt_funcs->mode1_reset_is_support(smu);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_mode1_reset(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->mode1_reset)
ret = smu->ppt_funcs->mode1_reset(smu);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_mode2_reset(struct smu_context *smu)
{
int ret = 0;
if (!smu->pm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->mode2_reset)
ret = smu->ppt_funcs->mode2_reset(smu);
mutex_unlock(&smu->mutex);
if (ret)
dev_err(smu->adev->dev, "Mode2 reset failed!\n");
return ret;
}
int smu_get_max_sustainable_clocks_by_dc(struct smu_context *smu,
struct pp_smu_nv_clock_table *max_clocks)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_max_sustainable_clocks_by_dc)
ret = smu->ppt_funcs->get_max_sustainable_clocks_by_dc(smu, max_clocks);
mutex_unlock(&smu->mutex);
return ret;
}
int smu_get_uclk_dpm_states(struct smu_context *smu,
unsigned int *clock_values_in_khz,
unsigned int *num_states)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_uclk_dpm_states)
ret = smu->ppt_funcs->get_uclk_dpm_states(smu, clock_values_in_khz, num_states);
mutex_unlock(&smu->mutex);
return ret;
}
enum amd_pm_state_type smu_get_current_power_state(struct smu_context *smu)
{
enum amd_pm_state_type pm_state = POWER_STATE_TYPE_DEFAULT;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_current_power_state)
pm_state = smu->ppt_funcs->get_current_power_state(smu);
mutex_unlock(&smu->mutex);
return pm_state;
}
int smu_get_dpm_clock_table(struct smu_context *smu,
struct dpm_clocks *clock_table)
{
int ret = 0;
if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
return -EOPNOTSUPP;
mutex_lock(&smu->mutex);
if (smu->ppt_funcs->get_dpm_clock_table)
ret = smu->ppt_funcs->get_dpm_clock_table(smu, clock_table);
mutex_unlock(&smu->mutex);
return ret;
}
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