From b55c9e7a11f9993328a46b43f3c9e4ca1962c352 Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Thu, 27 Sep 2018 13:43:16 +0800 Subject: [PATCH] drm/amd/powerplay: helper interfaces for MGPU fan boost feature MGPU fan boost feature is enabled only when two or more dGPUs in the system. Signed-off-by: Evan Quan Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 41 ++++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h | 4 +++ drivers/gpu/drm/amd/include/kgd_pp_interface.h | 1 + drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 19 ++++++++++++ drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 1 + 5 files changed, 66 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index bd79d0a3..a1d8d97 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1833,6 +1833,43 @@ static int amdgpu_device_ip_fini(struct amdgpu_device *adev) return 0; } +static int amdgpu_device_enable_mgpu_fan_boost(void) +{ + struct amdgpu_gpu_instance *gpu_ins; + struct amdgpu_device *adev; + int i, ret = 0; + + mutex_lock(&mgpu_info.mutex); + + /* + * MGPU fan boost feature should be enabled + * only when there are two or more dGPUs in + * the system + */ + if (mgpu_info.num_dgpu < 2) + goto out; + + for (i = 0; i < mgpu_info.num_dgpu; i++) { + gpu_ins = &(mgpu_info.gpu_ins[i]); + adev = gpu_ins->adev; + if (!(adev->flags & AMD_IS_APU) && + !gpu_ins->mgpu_fan_enabled && + adev->powerplay.pp_funcs && + adev->powerplay.pp_funcs->enable_mgpu_fan_boost) { + ret = amdgpu_dpm_enable_mgpu_fan_boost(adev); + if (ret) + break; + + gpu_ins->mgpu_fan_enabled = 1; + } + } + +out: + mutex_unlock(&mgpu_info.mutex); + + return ret; +} + /** * amdgpu_device_ip_late_init_func_handler - work handler for ib test * @@ -1847,6 +1884,10 @@ static void amdgpu_device_ip_late_init_func_handler(struct work_struct *work) r = amdgpu_ib_ring_tests(adev); if (r) DRM_ERROR("ib ring test failed (%d).\n", r); + + r = amdgpu_device_enable_mgpu_fan_boost(); + if (r) + DRM_ERROR("enable mgpu fan boost failed (%d).\n", r); } static void amdgpu_device_delay_enable_gfx_off(struct work_struct *work) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h index ff24e1c..42568ae 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h @@ -357,6 +357,10 @@ enum amdgpu_pcie_gen { ((adev)->powerplay.pp_funcs->odn_edit_dpm_table(\ (adev)->powerplay.pp_handle, type, parameter, size)) +#define amdgpu_dpm_enable_mgpu_fan_boost(adev) \ + ((adev)->powerplay.pp_funcs->enable_mgpu_fan_boost(\ + (adev)->powerplay.pp_handle)) + struct amdgpu_dpm { struct amdgpu_ps *ps; /* number of valid power states */ diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h index bd74045..8593850 100644 --- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h @@ -272,6 +272,7 @@ struct amd_pm_funcs { int (*get_display_mode_validation_clocks)(void *handle, struct amd_pp_simple_clock_info *clocks); int (*notify_smu_enable_pwe)(void *handle); + int (*enable_mgpu_fan_boost)(void *handle); }; #endif diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index da4ebff..c2e5412 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -1243,6 +1243,24 @@ static int pp_notify_smu_enable_pwe(void *handle) return 0; } +static int pp_enable_mgpu_fan_boost(void *handle) +{ + struct pp_hwmgr *hwmgr = handle; + + if (!hwmgr || !hwmgr->pm_en) + return -EINVAL; + + if (hwmgr->hwmgr_func->enable_mgpu_fan_boost == NULL) { + return 0; + } + + mutex_lock(&hwmgr->smu_lock); + hwmgr->hwmgr_func->enable_mgpu_fan_boost(hwmgr); + mutex_unlock(&hwmgr->smu_lock); + + return 0; +} + static const struct amd_pm_funcs pp_dpm_funcs = { .load_firmware = pp_dpm_load_fw, .wait_for_fw_loading_complete = pp_dpm_fw_loading_complete, @@ -1287,4 +1305,5 @@ static const struct amd_pm_funcs pp_dpm_funcs = { .display_clock_voltage_request = pp_display_clock_voltage_request, .get_display_mode_validation_clocks = pp_get_display_mode_validation_clocks, .notify_smu_enable_pwe = pp_notify_smu_enable_pwe, + .enable_mgpu_fan_boost = pp_enable_mgpu_fan_boost, }; diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h index a6d9212..8484e2d 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h +++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h @@ -328,6 +328,7 @@ struct pp_hwmgr_func { int (*set_power_limit)(struct pp_hwmgr *hwmgr, uint32_t n); int (*powergate_mmhub)(struct pp_hwmgr *hwmgr); int (*smus_notify_pwe)(struct pp_hwmgr *hwmgr); + int (*enable_mgpu_fan_boost)(struct pp_hwmgr *hwmgr); }; struct pp_table_func { -- 2.7.4