From: Likun Gao Date: Thu, 14 Feb 2019 10:35:14 +0000 (+0800) Subject: drm/amd/powerplay: add suspend and resume function for smu X-Git-Tag: v5.2-rc1~48^2~36^2~209 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=4733cc7244c2f18292dbb78ba88dfee35b73ff67;p=uclinux-h8%2Flinux.git drm/amd/powerplay: add suspend and resume function for smu Functional the function of smu suspend and resume. Modified the function of smu_smc_table_hw_init to make it useful for smu resume. Signed-off-by: Likun Gao Reviewed-by: Kenneth Feng Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index 9cb45fe0459b..0a9b87369f5c 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -529,7 +529,8 @@ static int smu_fini_fb_allocations(struct smu_context *smu) return 0; } -static int smu_smc_table_hw_init(struct smu_context *smu) +static int smu_smc_table_hw_init(struct smu_context *smu, + bool initialize) { int ret; @@ -541,54 +542,56 @@ static int smu_smc_table_hw_init(struct smu_context *smu) if (ret) return ret; - ret = smu_read_pptable_from_vbios(smu); - if (ret) - return ret; + if (initialize) { + ret = smu_read_pptable_from_vbios(smu); + if (ret) + return ret; - /* get boot_values from vbios to set revision, gfxclk, and etc. */ - ret = smu_get_vbios_bootup_values(smu); - if (ret) - return ret; + /* get boot_values from vbios to set revision, gfxclk, and etc. */ + ret = smu_get_vbios_bootup_values(smu); + if (ret) + return ret; - ret = smu_get_clk_info_from_vbios(smu); - if (ret) - return ret; + ret = smu_get_clk_info_from_vbios(smu); + if (ret) + return ret; - /* - * check if the format_revision in vbios is up to pptable header - * version, and the structure size is not 0. - */ - ret = smu_get_clk_info_from_vbios(smu); - if (ret) - return ret; + /* + * check if the format_revision in vbios is up to pptable header + * version, and the structure size is not 0. + */ + ret = smu_get_clk_info_from_vbios(smu); + if (ret) + return ret; - ret = smu_check_pptable(smu); - if (ret) - return ret; + ret = smu_check_pptable(smu); + if (ret) + return ret; - /* - * allocate vram bos to store smc table contents. - */ - ret = smu_init_fb_allocations(smu); - if (ret) - return ret; + /* + * allocate vram bos to store smc table contents. + */ + ret = smu_init_fb_allocations(smu); + if (ret) + return ret; - /* - * Parse pptable format and fill PPTable_t smc_pptable to - * smu_table_context structure. And read the smc_dpm_table from vbios, - * then fill it into smc_pptable. - */ - ret = smu_parse_pptable(smu); - if (ret) - return ret; + /* + * Parse pptable format and fill PPTable_t smc_pptable to + * smu_table_context structure. And read the smc_dpm_table from vbios, + * then fill it into smc_pptable. + */ + ret = smu_parse_pptable(smu); + if (ret) + 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; + /* + * 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; + } /* * Copy pptable bo in the vram to smc with SMU MSGs such as @@ -624,25 +627,29 @@ static int smu_smc_table_hw_init(struct smu_context *smu) * gfxclk, memclk, dcefclk, and etc. And enable the DPM feature for each * type of clks. */ - ret = smu_populate_smc_pptable(smu); - if (ret) - return ret; + if (initialize) { + ret = smu_populate_smc_pptable(smu); + if (ret) + return ret; - ret = smu_init_max_sustainable_clocks(smu); - if (ret) - return ret; + ret = smu_init_max_sustainable_clocks(smu); + if (ret) + return ret; + } - ret = smu_set_od8_default_settings(smu); + ret = smu_set_od8_default_settings(smu, initialize); if (ret) return ret; - ret = smu_populate_umd_state_clk(smu); - if (ret) - return ret; + if (initialize) { + ret = smu_populate_umd_state_clk(smu); + if (ret) + return ret; - ret = smu_get_power_limit(smu, &smu->default_power_limit, false); - if (ret) - return ret; + ret = smu_get_power_limit(smu, &smu->default_power_limit, false); + if (ret) + return ret; + } /* * Set PMSTATUSLOG table bo address with SetToolsDramAddr MSG for tools. @@ -714,6 +721,7 @@ static int smu_free_memory_pool(struct smu_context *smu) return ret; } + static int smu_hw_init(void *handle) { int ret; @@ -741,7 +749,7 @@ static int smu_hw_init(void *handle) if (ret) goto failed; - ret = smu_smc_table_hw_init(smu); + ret = smu_smc_table_hw_init(smu, true); if (ret) goto failed; @@ -834,11 +842,19 @@ int smu_reset(struct smu_context *smu) static int smu_suspend(void *handle) { + int ret; struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct smu_context *smu = &adev->smu; if (!is_support_sw_smu(adev)) return -EINVAL; + ret = smu_feature_disable_all(smu); + if (ret) + return ret; + + smu->watermarks_bitmap &= ~(WATERMARKS_LOADED); + return 0; } @@ -853,37 +869,13 @@ static int smu_resume(void *handle) pr_info("SMU is resuming...\n"); - if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { - ret = smu_load_microcode(smu); - if (ret) - return ret; - } - - ret = smu_check_fw_status(smu); - if (ret) { - pr_err("SMC firmware status is not correct\n"); - return ret; - } - mutex_lock(&smu->mutex); - ret = smu_set_tool_table_location(smu); - if (ret) - goto failed; - - ret = smu_write_pptable(smu); + ret = smu_smc_table_hw_init(smu, false); if (ret) goto failed; - ret = smu_write_watermarks_table(smu); - if (ret) - goto failed; - - ret = smu_set_last_dcef_min_deep_sleep_clk(smu); - if (ret) - goto failed; - - ret = smu_system_features_control(smu, true); + ret = smu_start_thermal_control(smu); if (ret) goto failed; diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h index d2adacc6a7c0..a79991d6ef98 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h @@ -518,7 +518,8 @@ struct smu_funcs int (*notify_smu_enable_pwe)(struct smu_context *smu); int (*set_watermarks_for_clock_ranges)(struct smu_context *smu, struct dm_pp_wm_sets_with_clock_ranges_soc15 *clock_ranges); - int (*set_od8_default_settings)(struct smu_context *smu); + int (*set_od8_default_settings)(struct smu_context *smu, + bool initialize); int (*get_activity_monitor_coeff)(struct smu_context *smu, uint8_t *table, uint16_t workload_type); @@ -587,8 +588,8 @@ struct smu_funcs ((smu)->funcs->system_features_control ? (smu)->funcs->system_features_control((smu), (en)) : 0) #define smu_init_max_sustainable_clocks(smu) \ ((smu)->funcs->init_max_sustainable_clocks ? (smu)->funcs->init_max_sustainable_clocks((smu)) : 0) -#define smu_set_od8_default_settings(smu) \ - ((smu)->funcs->set_od8_default_settings ? (smu)->funcs->set_od8_default_settings((smu)) : 0) +#define smu_set_od8_default_settings(smu, initialize) \ + ((smu)->funcs->set_od8_default_settings ? (smu)->funcs->set_od8_default_settings((smu), (initialize)) : 0) #define smu_update_od8_settings(smu, index, value) \ ((smu)->funcs->update_od8_settings ? (smu)->funcs->update_od8_settings((smu), (index), (value)) : 0) #define smu_get_current_rpm(smu, speed) \ diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c index 9fe34c4a16f6..ba808a57185c 100644 --- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c +++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c @@ -1432,26 +1432,29 @@ static uint32_t smu_v11_0_dpm_get_mclk(struct smu_context *smu, bool low) return (mem_clk * 100); } -static int smu_v11_0_set_od8_default_settings(struct smu_context *smu) +static int smu_v11_0_set_od8_default_settings(struct smu_context *smu, + bool initialize) { struct smu_table_context *table_context = &smu->smu_table; int ret; - if (table_context->overdrive_table) - return -EINVAL; + if (initialize) { + if (table_context->overdrive_table) + return -EINVAL; - table_context->overdrive_table = kzalloc(sizeof(OverDriveTable_t), GFP_KERNEL); + table_context->overdrive_table = kzalloc(sizeof(OverDriveTable_t), GFP_KERNEL); - if (!table_context->overdrive_table) - return -ENOMEM; + if (!table_context->overdrive_table) + return -ENOMEM; - ret = smu_update_table(smu, TABLE_OVERDRIVE, table_context->overdrive_table, false); - if (ret) { - pr_err("Failed to export over drive table!\n"); - return ret; - } + ret = smu_update_table(smu, TABLE_OVERDRIVE, table_context->overdrive_table, false); + if (ret) { + pr_err("Failed to export over drive table!\n"); + return ret; + } - smu_set_default_od8_settings(smu); + smu_set_default_od8_settings(smu); + } ret = smu_update_table(smu, TABLE_OVERDRIVE, table_context->overdrive_table, true); if (ret) {