From ca55f459f5adabd47caffbdd05d3bdafd4d0769a Mon Sep 17 00:00:00 2001 From: Xiaojian Du Date: Thu, 24 Dec 2020 16:19:19 +0800 Subject: [PATCH] drm/amd/pm: add the fine grain tuning function for renoir This patch is to add the fine grain tuning function for renoir. This function uses the pp_od_clk_voltage sysfs file to configure the min and max value of gfx clock frequency manually or restore the default value. Command guide: echo "s level value" > pp_od_clk_voltage "s" - set the sclk frequency "level" - 0 or 1, "0" represents the min value, "1" represents the max value "value" - the target value of sclk frequency, it should be limited in the safe range echo "r" > pp_od_clk_voltage "r" - reset the sclk frequency, restore the default value instantly echo "c" > pp_od_clk_voltage "c" - commit the min and max value of sclk frequency to the system only after the commit command, the target values set by "s" command will take effect. Example: 1)change power profile from "auto" to "standard" $ cat power_dpm_force_performance_level auto $ echo "profile_standard" > power_dpm_force_performance_level $ cat power_dpm_force_performance_level profile_standard 2)check the default sclk frequency $ cat pp_od_clk_voltage OD_SCLK: 0: 200Mhz 1: 1400Mhz OD_RANGE: SCLK: 200MHz 1400MHz 3)use "s" -- set command to configure the min and max sclk frequency $ echo "s 0 600" > pp_od_clk_voltage $ echo "s 1 1000" > pp_od_clk_voltage $ echo "c" > pp_od_clk_voltage $ cat pp_od_clk_voltage OD_SCLK: 0: 600Mhz 1: 1000Mhz OD_RANGE: SCLK: 200MHz 1400MHz 4)use "r" -- reset command to restore the min or max sclk frequency $ echo "r" > pp_od_clk_voltage $ cat pp_od_clk_voltage OD_SCLK: 0: 200Mhz 1: 1400Mhz OD_RANGE: SCLK: 200MHz 1400MHz Signed-off-by: Xiaojian Du Reviewed-by: Huang Rui Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c | 187 ++++++++++++++++++++++-- 1 file changed, 173 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c index dc75db8..801e785 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c @@ -343,6 +343,129 @@ failed: return ret; } +static int renoir_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->od_enabled) { + dev_warn(smu->adev->dev, "Fine grain is not enabled!\n"); + return -EINVAL; + } + + switch (type) { + case PP_OD_EDIT_SCLK_VDDC_TABLE: + if (size != 2) { + dev_err(smu->adev->dev, "Input parameter number not correct\n"); + return -EINVAL; + } + + if (input[0] == 0) { + if (input[1] < smu->gfx_default_hard_min_freq) { + dev_warn(smu->adev->dev, "Fine grain setting minimum sclk (%ld) MHz is less than the minimum allowed (%d) MHz\n", + input[1], smu->gfx_default_hard_min_freq); + return -EINVAL; + } + smu->gfx_actual_hard_min_freq = input[1]; + } else if (input[0] == 1) { + if (input[1] > smu->gfx_default_soft_max_freq) { + dev_warn(smu->adev->dev, "Fine grain setting maximum sclk (%ld) MHz is greater than the maximum allowed (%d) MHz\n", + input[1], smu->gfx_default_soft_max_freq); + return -EINVAL; + } + smu->gfx_actual_soft_max_freq = input[1]; + } else { + return -EINVAL; + } + break; + case PP_OD_RESTORE_DEFAULT_TABLE: + if (size != 0) { + dev_err(smu->adev->dev, "Input parameter number not correct\n"); + return -EINVAL; + } + smu->gfx_actual_hard_min_freq = smu->gfx_default_hard_min_freq; + smu->gfx_actual_soft_max_freq = smu->gfx_default_soft_max_freq; + + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_SetHardMinGfxClk, + smu->gfx_actual_hard_min_freq, + NULL); + if (ret) { + dev_err(smu->adev->dev, "Restore the default hard min sclk failed!"); + return ret; + } + + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_SetSoftMaxGfxClk, + smu->gfx_actual_soft_max_freq, + NULL); + if (ret) { + dev_err(smu->adev->dev, "Restore the default soft max sclk failed!"); + return ret; + } + break; + case PP_OD_COMMIT_DPM_TABLE: + if (size != 0) { + dev_err(smu->adev->dev, "Input parameter number not correct\n"); + return -EINVAL; + } else { + if (smu->gfx_actual_hard_min_freq > smu->gfx_actual_soft_max_freq) { + dev_err(smu->adev->dev, "The setting minimun sclk (%d) MHz is greater than the setting maximum sclk (%d) MHz\n", + smu->gfx_actual_hard_min_freq, smu->gfx_actual_soft_max_freq); + return -EINVAL; + } + + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_SetHardMinGfxClk, + smu->gfx_actual_hard_min_freq, + NULL); + if (ret) { + dev_err(smu->adev->dev, "Set hard min sclk failed!"); + return ret; + } + + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_SetSoftMaxGfxClk, + smu->gfx_actual_soft_max_freq, + NULL); + if (ret) { + dev_err(smu->adev->dev, "Set soft max sclk failed!"); + return ret; + } + } + break; + default: + return -ENOSYS; + } + + return ret; +} + +static int renoir_set_fine_grain_gfx_freq_parameters(struct smu_context *smu) +{ + uint32_t min = 0, max = 0; + uint32_t ret = 0; + + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_GetMinGfxclkFrequency, + 0, &min); + if (ret) + return ret; + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_GetMaxGfxclkFrequency, + 0, &max); + if (ret) + return ret; + + smu->gfx_default_hard_min_freq = min; + smu->gfx_default_soft_max_freq = max; + smu->gfx_actual_hard_min_freq = 0; + smu->gfx_actual_soft_max_freq = 0; + + return 0; +} + static int renoir_print_clk_levels(struct smu_context *smu, enum smu_clk_type clk_type, char *buf) { @@ -358,6 +481,28 @@ static int renoir_print_clk_levels(struct smu_context *smu, return ret; switch (clk_type) { + case SMU_OD_RANGE: + if (smu->od_enabled) { + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_GetMinGfxclkFrequency, + 0, &min); + if (ret) + return ret; + ret = smu_cmn_send_smc_msg_with_param(smu, + SMU_MSG_GetMaxGfxclkFrequency, + 0, &max); + if (ret) + return ret; + size += sprintf(buf + size, "OD_RANGE\nSCLK: %10uMhz %10uMhz\n", min, max); + } + break; + case SMU_OD_SCLK: + min = (smu->gfx_actual_hard_min_freq > 0) ? smu->gfx_actual_hard_min_freq : smu->gfx_default_hard_min_freq; + max = (smu->gfx_actual_soft_max_freq > 0) ? smu->gfx_actual_soft_max_freq : smu->gfx_default_soft_max_freq; + size += sprintf(buf + size, "OD_SCLK\n"); + size += sprintf(buf + size, "0:%10uMhz\n", min); + size += sprintf(buf + size, "1:%10uMhz\n", max); + break; case SMU_GFXCLK: case SMU_SCLK: /* retirve table returned paramters unit is MHz */ @@ -398,23 +543,35 @@ static int renoir_print_clk_levels(struct smu_context *smu, cur_value = metrics.ClockFrequency[CLOCK_FCLK]; break; default: - return -EINVAL; + break; } - for (i = 0; i < count; i++) { - ret = renoir_get_dpm_clk_limited(smu, clk_type, i, &value); - if (ret) - return ret; - if (!value) - continue; - size += sprintf(buf + size, "%d: %uMhz %s\n", i, value, - cur_value == value ? "*" : ""); - if (cur_value == value) - cur_value_match_level = true; - } + switch (clk_type) { + case SMU_GFXCLK: + case SMU_SCLK: + case SMU_SOCCLK: + case SMU_MCLK: + case SMU_DCEFCLK: + case SMU_FCLK: + for (i = 0; i < count; i++) { + ret = renoir_get_dpm_clk_limited(smu, clk_type, i, &value); + if (ret) + return ret; + if (!value) + continue; + size += sprintf(buf + size, "%d: %uMhz %s\n", i, value, + cur_value == value ? "*" : ""); + if (cur_value == value) + cur_value_match_level = true; + } - if (!cur_value_match_level) - size += sprintf(buf + size, " %uMhz *\n", cur_value); + if (!cur_value_match_level) + size += sprintf(buf + size, " %uMhz *\n", cur_value); + + break; + default: + break; + } return size; } @@ -1159,6 +1316,8 @@ static const struct pptable_funcs renoir_ppt_funcs = { .set_pp_feature_mask = smu_cmn_set_pp_feature_mask, .get_gpu_metrics = renoir_get_gpu_metrics, .gfx_state_change_set = renoir_gfx_state_change_set, + .set_fine_grain_gfx_freq_parameters = renoir_set_fine_grain_gfx_freq_parameters, + .od_edit_dpm_table = renoir_od_edit_dpm_table, }; void renoir_set_ppt_funcs(struct smu_context *smu) -- 2.7.4