diff options
Diffstat (limited to 'drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c | 678 |
1 files changed, 678 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c new file mode 100644 index 000000000000..a58ea08cd115 --- /dev/null +++ b/drivers/gpu/drm/amd/pm/swsmu/smu_cmn.c @@ -0,0 +1,678 @@ +/* + * Copyright 2020 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_L4 + +#include "amdgpu.h" +#include "amdgpu_smu.h" +#include "smu_cmn.h" +#include "soc15_common.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 + +/* + * Although these are defined in each ASIC's specific header file. + * They share the same definitions and values. That makes common + * APIs for SMC messages issuing for all ASICs possible. + */ +#define mmMP1_SMN_C2PMSG_66 0x0282 +#define mmMP1_SMN_C2PMSG_66_BASE_IDX 0 + +#define mmMP1_SMN_C2PMSG_82 0x0292 +#define mmMP1_SMN_C2PMSG_82_BASE_IDX 0 + +#define mmMP1_SMN_C2PMSG_90 0x029a +#define mmMP1_SMN_C2PMSG_90_BASE_IDX 0 + +#define MP1_C2PMSG_90__CONTENT_MASK 0xFFFFFFFFL + +#undef __SMU_DUMMY_MAP +#define __SMU_DUMMY_MAP(type) #type +static const char* __smu_message_names[] = { + SMU_MESSAGE_TYPES +}; + +static const char *smu_get_message_name(struct smu_context *smu, + enum smu_message_type type) +{ + if (type < 0 || type >= SMU_MSG_MAX_COUNT) + return "unknown smu message"; + + return __smu_message_names[type]; +} + +static void smu_cmn_send_msg_without_waiting(struct smu_context *smu, + uint16_t msg) +{ + struct amdgpu_device *adev = smu->adev; + + WREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_66, msg); +} + +static void smu_cmn_read_arg(struct smu_context *smu, + uint32_t *arg) +{ + struct amdgpu_device *adev = smu->adev; + + *arg = RREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_82); +} + +static int smu_cmn_wait_for_response(struct smu_context *smu) +{ + struct amdgpu_device *adev = smu->adev; + uint32_t cur_value, i, timeout = adev->usec_timeout * 10; + + for (i = 0; i < timeout; i++) { + cur_value = RREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_90); + if ((cur_value & MP1_C2PMSG_90__CONTENT_MASK) != 0) + return cur_value == 0x1 ? 0 : -EIO; + + udelay(1); + } + + /* timeout means wrong logic */ + if (i == timeout) + return -ETIME; + + return RREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_90) == 0x1 ? 0 : -EIO; +} + +int smu_cmn_send_smc_msg_with_param(struct smu_context *smu, + enum smu_message_type msg, + uint32_t param, + uint32_t *read_arg) +{ + struct amdgpu_device *adev = smu->adev; + int ret = 0, index = 0; + + index = smu_cmn_to_asic_specific_index(smu, + CMN2ASIC_MAPPING_MSG, + msg); + if (index < 0) + return index == -EACCES ? 0 : index; + + mutex_lock(&smu->message_lock); + ret = smu_cmn_wait_for_response(smu); + if (ret) { + dev_err(adev->dev, "Msg issuing pre-check failed and " + "SMU may be not in the right state!\n"); + goto out; + } + + WREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_90, 0); + + WREG32_SOC15_NO_KIQ(MP1, 0, mmMP1_SMN_C2PMSG_82, param); + + smu_cmn_send_msg_without_waiting(smu, (uint16_t)index); + + ret = smu_cmn_wait_for_response(smu); + if (ret) { + dev_err(adev->dev, "failed send message: %10s (%d) \tparam: 0x%08x response %#x\n", + smu_get_message_name(smu, msg), index, param, ret); + goto out; + } + + if (read_arg) + smu_cmn_read_arg(smu, read_arg); + +out: + mutex_unlock(&smu->message_lock); + return ret; +} + +int smu_cmn_send_smc_msg(struct smu_context *smu, + enum smu_message_type msg, + uint32_t *read_arg) +{ + return smu_cmn_send_smc_msg_with_param(smu, + msg, + 0, + read_arg); +} + +int smu_cmn_to_asic_specific_index(struct smu_context *smu, + enum smu_cmn2asic_mapping_type type, + uint32_t index) +{ + struct cmn2asic_msg_mapping msg_mapping; + struct cmn2asic_mapping mapping; + + switch (type) { + case CMN2ASIC_MAPPING_MSG: + if (index >= SMU_MSG_MAX_COUNT || + !smu->message_map) + return -EINVAL; + + msg_mapping = smu->message_map[index]; + if (!msg_mapping.valid_mapping) + return -EINVAL; + + if (amdgpu_sriov_vf(smu->adev) && + !msg_mapping.valid_in_vf) + return -EACCES; + + return msg_mapping.map_to; + + case CMN2ASIC_MAPPING_CLK: + if (index >= SMU_CLK_COUNT || + !smu->clock_map) + return -EINVAL; + + mapping = smu->clock_map[index]; + if (!mapping.valid_mapping) + return -EINVAL; + + return mapping.map_to; + + case CMN2ASIC_MAPPING_FEATURE: + if (index >= SMU_FEATURE_COUNT || + !smu->feature_map) + return -EINVAL; + + mapping = smu->feature_map[index]; + if (!mapping.valid_mapping) + return -EINVAL; + + return mapping.map_to; + + case CMN2ASIC_MAPPING_TABLE: + if (index >= SMU_TABLE_COUNT || + !smu->table_map) + return -EINVAL; + + mapping = smu->table_map[index]; + if (!mapping.valid_mapping) + return -EINVAL; + + return mapping.map_to; + + case CMN2ASIC_MAPPING_PWR: + if (index >= SMU_POWER_SOURCE_COUNT || + !smu->pwr_src_map) + return -EINVAL; + + mapping = smu->pwr_src_map[index]; + if (!mapping.valid_mapping) + return -EINVAL; + + return mapping.map_to; + + case CMN2ASIC_MAPPING_WORKLOAD: + if (index > PP_SMC_POWER_PROFILE_CUSTOM || + !smu->workload_map) + return -EINVAL; + + mapping = smu->workload_map[index]; + if (!mapping.valid_mapping) + return -EINVAL; + + return mapping.map_to; + + default: + return -EINVAL; + } +} + +int smu_cmn_feature_is_supported(struct smu_context *smu, + enum smu_feature_mask mask) +{ + struct smu_feature *feature = &smu->smu_feature; + int feature_id; + int ret = 0; + + feature_id = smu_cmn_to_asic_specific_index(smu, + CMN2ASIC_MAPPING_FEATURE, + mask); + if (feature_id < 0) + return 0; + + WARN_ON(feature_id > feature->feature_num); + + mutex_lock(&feature->mutex); + ret = test_bit(feature_id, feature->supported); + mutex_unlock(&feature->mutex); + + return ret; +} + +int smu_cmn_feature_is_enabled(struct smu_context *smu, + enum smu_feature_mask mask) +{ + struct smu_feature *feature = &smu->smu_feature; + int feature_id; + int ret = 0; + + if (smu->is_apu) + return 1; + feature_id = smu_cmn_to_asic_specific_index(smu, + CMN2ASIC_MAPPING_FEATURE, + mask); + if (feature_id < 0) + return 0; + + WARN_ON(feature_id > feature->feature_num); + + mutex_lock(&feature->mutex); + ret = test_bit(feature_id, feature->enabled); + mutex_unlock(&feature->mutex); + + return ret; +} + +bool smu_cmn_clk_dpm_is_enabled(struct smu_context *smu, + enum smu_clk_type clk_type) +{ + enum smu_feature_mask feature_id = 0; + + switch (clk_type) { + case SMU_MCLK: + case SMU_UCLK: + feature_id = SMU_FEATURE_DPM_UCLK_BIT; + break; + case SMU_GFXCLK: + case SMU_SCLK: + feature_id = SMU_FEATURE_DPM_GFXCLK_BIT; + break; + case SMU_SOCCLK: + feature_id = SMU_FEATURE_DPM_SOCCLK_BIT; + break; + default: + return true; + } + + if (!smu_cmn_feature_is_enabled(smu, feature_id)) + return false; + + return true; +} + +int smu_cmn_get_enabled_mask(struct smu_context *smu, + uint32_t *feature_mask, + uint32_t num) +{ + uint32_t feature_mask_high = 0, feature_mask_low = 0; + struct smu_feature *feature = &smu->smu_feature; + int ret = 0; + + if (!feature_mask || num < 2) + return -EINVAL; + + if (bitmap_empty(feature->enabled, feature->feature_num)) { + ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesHigh, &feature_mask_high); + if (ret) + return ret; + + ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetEnabledSmuFeaturesLow, &feature_mask_low); + if (ret) + return ret; + + feature_mask[0] = feature_mask_low; + feature_mask[1] = feature_mask_high; + } else { + bitmap_copy((unsigned long *)feature_mask, feature->enabled, + feature->feature_num); + } + + return ret; +} + +static int smu_cmn_feature_update_enable_state(struct smu_context *smu, + uint64_t feature_mask, + bool enabled) +{ + struct smu_feature *feature = &smu->smu_feature; + int ret = 0; + + if (enabled) { + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_EnableSmuFeaturesLow, + lower_32_bits(feature_mask), + NULL); + if (ret) + return ret; + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_EnableSmuFeaturesHigh, + upper_32_bits(feature_mask), + NULL); + if (ret) + return ret; + } else { + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_DisableSmuFeaturesLow, + lower_32_bits(feature_mask), + NULL); + if (ret) + return ret; + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_DisableSmuFeaturesHigh, + upper_32_bits(feature_mask), + NULL); + if (ret) + return ret; + } + + mutex_lock(&feature->mutex); + if (enabled) + bitmap_or(feature->enabled, feature->enabled, + (unsigned long *)(&feature_mask), SMU_FEATURE_MAX); + else + bitmap_andnot(feature->enabled, feature->enabled, + (unsigned long *)(&feature_mask), SMU_FEATURE_MAX); + mutex_unlock(&feature->mutex); + + return ret; +} + +int smu_cmn_feature_set_enabled(struct smu_context *smu, + enum smu_feature_mask mask, + bool enable) +{ + struct smu_feature *feature = &smu->smu_feature; + int feature_id; + + feature_id = smu_cmn_to_asic_specific_index(smu, + CMN2ASIC_MAPPING_FEATURE, + mask); + if (feature_id < 0) + return -EINVAL; + + WARN_ON(feature_id > feature->feature_num); + + return smu_cmn_feature_update_enable_state(smu, + 1ULL << feature_id, + enable); +} + +#undef __SMU_DUMMY_MAP +#define __SMU_DUMMY_MAP(fea) #fea +static const char* __smu_feature_names[] = { + SMU_FEATURE_MASKS +}; + +static const char *smu_get_feature_name(struct smu_context *smu, + enum smu_feature_mask feature) +{ + if (feature < 0 || feature >= SMU_FEATURE_COUNT) + return "unknown smu feature"; + return __smu_feature_names[feature]; +} + +size_t smu_cmn_get_pp_feature_mask(struct smu_context *smu, + char *buf) +{ + uint32_t feature_mask[2] = { 0 }; + int32_t feature_index = 0; + uint32_t count = 0; + uint32_t sort_feature[SMU_FEATURE_COUNT]; + uint64_t hw_feature_count = 0; + size_t size = 0; + int ret = 0, i; + + ret = smu_cmn_get_enabled_mask(smu, + feature_mask, + 2); + if (ret) + return 0; + + size = sprintf(buf + size, "features high: 0x%08x low: 0x%08x\n", + feature_mask[1], feature_mask[0]); + + for (i = 0; i < SMU_FEATURE_COUNT; i++) { + feature_index = smu_cmn_to_asic_specific_index(smu, + CMN2ASIC_MAPPING_FEATURE, + i); + if (feature_index < 0) + continue; + sort_feature[feature_index] = i; + hw_feature_count++; + } + + for (i = 0; i < hw_feature_count; i++) { + size += sprintf(buf + size, "%02d. %-20s (%2d) : %s\n", + count++, + smu_get_feature_name(smu, sort_feature[i]), + i, + !!smu_cmn_feature_is_enabled(smu, sort_feature[i]) ? + "enabled" : "disabled"); + } + + return size; +} + +int smu_cmn_set_pp_feature_mask(struct smu_context *smu, + uint64_t new_mask) +{ + int ret = 0; + uint32_t feature_mask[2] = { 0 }; + uint64_t feature_2_enabled = 0; + uint64_t feature_2_disabled = 0; + uint64_t feature_enables = 0; + + ret = smu_cmn_get_enabled_mask(smu, + feature_mask, + 2); + if (ret) + return ret; + + feature_enables = ((uint64_t)feature_mask[1] << 32 | + (uint64_t)feature_mask[0]); + + feature_2_enabled = ~feature_enables & new_mask; + feature_2_disabled = feature_enables & ~new_mask; + + if (feature_2_enabled) { + ret = smu_cmn_feature_update_enable_state(smu, + feature_2_enabled, + true); + if (ret) + return ret; + } + if (feature_2_disabled) { + ret = smu_cmn_feature_update_enable_state(smu, + feature_2_disabled, + false); + if (ret) + return ret; + } + + return ret; +} + +int smu_cmn_disable_all_features_with_exception(struct smu_context *smu, + enum smu_feature_mask mask) +{ + uint64_t features_to_disable = U64_MAX; + int skipped_feature_id; + + skipped_feature_id = smu_cmn_to_asic_specific_index(smu, + CMN2ASIC_MAPPING_FEATURE, + mask); + if (skipped_feature_id < 0) + return -EINVAL; + + features_to_disable &= ~(1ULL << skipped_feature_id); + + return smu_cmn_feature_update_enable_state(smu, + features_to_disable, + 0); +} + +int smu_cmn_get_smc_version(struct smu_context *smu, + uint32_t *if_version, + uint32_t *smu_version) +{ + int ret = 0; + + if (!if_version && !smu_version) + return -EINVAL; + + if (smu->smc_fw_if_version && smu->smc_fw_version) + { + if (if_version) + *if_version = smu->smc_fw_if_version; + + if (smu_version) + *smu_version = smu->smc_fw_version; + + return 0; + } + + if (if_version) { + ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetDriverIfVersion, if_version); + if (ret) + return ret; + + smu->smc_fw_if_version = *if_version; + } + + if (smu_version) { + ret = smu_cmn_send_smc_msg(smu, SMU_MSG_GetSmuVersion, smu_version); + if (ret) + return ret; + + smu->smc_fw_version = *smu_version; + } + + return ret; +} + +int smu_cmn_update_table(struct smu_context *smu, + enum smu_table_id table_index, + int argument, + void *table_data, + bool drv2smu) +{ + struct smu_table_context *smu_table = &smu->smu_table; + struct amdgpu_device *adev = smu->adev; + struct smu_table *table = &smu_table->driver_table; + int table_id = smu_cmn_to_asic_specific_index(smu, + CMN2ASIC_MAPPING_TABLE, + table_index); + uint32_t table_size; + int ret = 0; + if (!table_data || table_id >= SMU_TABLE_COUNT || table_id < 0) + return -EINVAL; + + table_size = smu_table->tables[table_index].size; + + if (drv2smu) { + memcpy(table->cpu_addr, table_data, table_size); + /* + * Flush hdp cache: to guard the content seen by + * GPU is consitent with CPU. + */ + amdgpu_asic_flush_hdp(adev, NULL); + } + + ret = smu_cmn_send_smc_msg_with_param(smu, drv2smu ? + SMU_MSG_TransferTableDram2Smu : + SMU_MSG_TransferTableSmu2Dram, + table_id | ((argument & 0xFFFF) << 16), + NULL); + if (ret) + return ret; + + if (!drv2smu) { + amdgpu_asic_flush_hdp(adev, NULL); + memcpy(table_data, table->cpu_addr, table_size); + } + + return 0; +} + +int smu_cmn_write_watermarks_table(struct smu_context *smu) +{ + void *watermarks_table = smu->smu_table.watermarks_table; + + if (!watermarks_table) + return -EINVAL; + + return smu_cmn_update_table(smu, + SMU_TABLE_WATERMARKS, + 0, + watermarks_table, + true); +} + +int smu_cmn_write_pptable(struct smu_context *smu) +{ + void *pptable = smu->smu_table.driver_pptable; + + return smu_cmn_update_table(smu, + SMU_TABLE_PPTABLE, + 0, + pptable, + true); +} + +int smu_cmn_get_metrics_table_locked(struct smu_context *smu, + void *metrics_table, + bool bypass_cache) +{ + struct smu_table_context *smu_table= &smu->smu_table; + uint32_t table_size = + smu_table->tables[SMU_TABLE_SMU_METRICS].size; + int ret = 0; + + if (bypass_cache || + !smu_table->metrics_time || + time_after(jiffies, smu_table->metrics_time + msecs_to_jiffies(1))) { + ret = smu_cmn_update_table(smu, + SMU_TABLE_SMU_METRICS, + 0, + smu_table->metrics_table, + false); + if (ret) { + dev_info(smu->adev->dev, "Failed to export SMU metrics table!\n"); + return ret; + } + smu_table->metrics_time = jiffies; + } + + if (metrics_table) + memcpy(metrics_table, smu_table->metrics_table, table_size); + + return 0; +} + +int smu_cmn_get_metrics_table(struct smu_context *smu, + void *metrics_table, + bool bypass_cache) +{ + int ret = 0; + + mutex_lock(&smu->metrics_lock); + ret = smu_cmn_get_metrics_table_locked(smu, + metrics_table, + bypass_cache); + mutex_unlock(&smu->metrics_lock); + + return ret; +} |