From 30b2c0cae4303a9691174968482c43bfedcb7d76 Mon Sep 17 00:00:00 2001 From: changzhu Date: Wed, 13 Nov 2019 17:17:09 +0800 Subject: [PATCH] drm/amd/powerplay: enable gpu_busy_percent sys interface for renoir (v2) To get the value of gpu_busy_percent, it needs to realize get_current_activity_percent and get_metrics_table. The framework of renoir smu is different from old ones like raven. It needs to realize get_current_activity_percent and get_metrics_table in renoir_ppt.c like navi10. v2: remove unused variable (Alex) Signed-off-by: changzhu Reviewed-by: Evan Quan Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h | 4 + drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 76 +++++++++++++++++++ drivers/gpu/drm/amd/powerplay/smu_v12_0.c | 33 ++++++++ 3 files changed, 113 insertions(+) diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h b/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h index 1745e0146fba..44c65dd8850d 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h +++ b/drivers/gpu/drm/amd/powerplay/inc/smu_v12_0.h @@ -62,6 +62,10 @@ int smu_v12_0_powergate_jpeg(struct smu_context *smu, bool gate); int smu_v12_0_set_gfx_cgpg(struct smu_context *smu, bool enable); +int smu_v12_0_read_sensor(struct smu_context *smu, + enum amd_pp_sensors sensor, + void *data, uint32_t *size); + uint32_t smu_v12_0_get_gfxoff_status(struct smu_context *smu); int smu_v12_0_gfx_off_control(struct smu_context *smu, bool enable); diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c index 784903a313b7..b44ce143e895 100644 --- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c +++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c @@ -139,6 +139,27 @@ static int renoir_get_smu_table_index(struct smu_context *smc, uint32_t index) return mapping.map_to; } +static int renoir_get_metrics_table(struct smu_context *smu, + SmuMetrics_t *metrics_table) +{ + struct smu_table_context *smu_table= &smu->smu_table; + int ret = 0; + + if (!smu_table->metrics_time || time_after(jiffies, smu_table->metrics_time + msecs_to_jiffies(100))) { + ret = smu_update_table(smu, SMU_TABLE_SMU_METRICS, 0, + (void *)smu_table->metrics_table, false); + if (ret) { + pr_info("Failed to export SMU metrics table!\n"); + return ret; + } + smu_table->metrics_time = jiffies; + } + + memcpy(metrics_table, smu_table->metrics_table, sizeof(SmuMetrics_t)); + + return ret; +} + static int renoir_tables_init(struct smu_context *smu, struct smu_table *tables) { struct smu_table_context *smu_table = &smu->smu_table; @@ -154,6 +175,11 @@ static int renoir_tables_init(struct smu_context *smu, struct smu_table *tables) if (!smu_table->clocks_table) return -ENOMEM; + smu_table->metrics_table = kzalloc(sizeof(SmuMetrics_t), GFP_KERNEL); + if (!smu_table->metrics_table) + return -ENOMEM; + smu_table->metrics_time = 0; + return 0; } @@ -386,6 +412,32 @@ static int renoir_unforce_dpm_levels(struct smu_context *smu) { return ret; } +static int renoir_get_current_activity_percent(struct smu_context *smu, + enum amd_pp_sensors sensor, + uint32_t *value) +{ + int ret = 0; + SmuMetrics_t metrics; + + if (!value) + return -EINVAL; + + ret = renoir_get_metrics_table(smu, &metrics); + if (ret) + return ret; + + switch (sensor) { + case AMDGPU_PP_SENSOR_GPU_LOAD: + *value = metrics.AverageGfxActivity; + break; + default: + pr_err("Invalid sensor for retrieving clock activity\n"); + return -EINVAL; + } + + return 0; +} + static int renoir_get_workload_type(struct smu_context *smu, uint32_t profile) { @@ -699,6 +751,29 @@ static int renoir_get_power_profile_mode(struct smu_context *smu, return size; } +static int renoir_read_sensor(struct smu_context *smu, + enum amd_pp_sensors sensor, + void *data, uint32_t *size) +{ + int ret = 0; + + if (!data || !size) + return -EINVAL; + + mutex_lock(&smu->sensor_lock); + switch (sensor) { + case AMDGPU_PP_SENSOR_GPU_LOAD: + ret = renoir_get_current_activity_percent(smu, sensor, (uint32_t *)data); + *size = 4; + break; + default: + ret = smu_v12_0_read_sensor(smu, sensor, data, size); + } + mutex_unlock(&smu->sensor_lock); + + return ret; +} + static const struct pptable_funcs renoir_ppt_funcs = { .get_smu_msg_index = renoir_get_smu_msg_index, .get_smu_table_index = renoir_get_smu_table_index, @@ -719,6 +794,7 @@ static const struct pptable_funcs renoir_ppt_funcs = { .get_dpm_clock_table = renoir_get_dpm_clock_table, .set_watermarks_table = renoir_set_watermarks_table, .get_power_profile_mode = renoir_get_power_profile_mode, + .read_sensor = renoir_read_sensor, .check_fw_status = smu_v12_0_check_fw_status, .check_fw_version = smu_v12_0_check_fw_version, .powergate_sdma = smu_v12_0_powergate_sdma, diff --git a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c index 18b24f954380..045167311ae8 100644 --- a/drivers/gpu/drm/amd/powerplay/smu_v12_0.c +++ b/drivers/gpu/drm/amd/powerplay/smu_v12_0.c @@ -223,6 +223,39 @@ int smu_v12_0_set_gfx_cgpg(struct smu_context *smu, bool enable) SMU_MSG_SetGfxCGPG, enable ? 1 : 0); } +int smu_v12_0_read_sensor(struct smu_context *smu, + enum amd_pp_sensors sensor, + void *data, uint32_t *size) +{ + int ret = 0; + + if(!data || !size) + return -EINVAL; + + switch (sensor) { + case AMDGPU_PP_SENSOR_GFX_MCLK: + ret = smu_get_current_clk_freq(smu, SMU_UCLK, (uint32_t *)data); + *size = 4; + break; + case AMDGPU_PP_SENSOR_GFX_SCLK: + ret = smu_get_current_clk_freq(smu, SMU_GFXCLK, (uint32_t *)data); + *size = 4; + break; + case AMDGPU_PP_SENSOR_MIN_FAN_RPM: + *(uint32_t *)data = 0; + *size = 4; + break; + default: + ret = smu_common_read_sensor(smu, sensor, data, size); + break; + } + + if (ret) + *size = 0; + + return ret; +} + /** * smu_v12_0_get_gfxoff_status - get gfxoff status * -- 2.45.2