Bascially, we should not expose the sysfs interface for those features not supported by the ASIC. As, there are some tools/tests which judges whether the feature is supported by the existence of the file. This can fix some test failure in rocm test suit. Regards, Evan From: Wang, Kevin(Yang) Sent: Friday, August 16, 2019 3:16 PM To: Quan, Evan ; amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Subject: Re: [PATCH 2/4] drm/amd/powerplay: expose supported clock domains only through sysfs I don't recommend it. What's the problem if we keep it the way it is? maybe other asic also has same problems, if do it, the other asic should add a condition in there too. eg: navi10 don't support sensor of "pp_dpm_pcie". Best Regards, Kevin ________________________________ From: amd-gfx > on behalf of Evan Quan > Sent: Friday, August 16, 2019 2:08 PM To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org > Cc: Quan, Evan > Subject: [PATCH 2/4] drm/amd/powerplay: expose supported clock domains only through sysfs Do not expose those unsupported clock domains through sysfs on Arcturus. Change-Id: I526e7bd457fdcd8c79d4581bb9b77e5cb57f5844 Signed-off-by: Evan Quan > --- drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index c5642be9b44b..7accf2c7f8cd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -2879,10 +2879,12 @@ int amdgpu_pm_sysfs_init(struct amdgpu_device *adev) DRM_ERROR("failed to create device file pp_dpm_socclk\n"); return ret; } - ret = device_create_file(adev->dev, &dev_attr_pp_dpm_dcefclk); - if (ret) { - DRM_ERROR("failed to create device file pp_dpm_dcefclk\n"); - return ret; + if (adev->asic_type != CHIP_ARCTURUS) { + ret = device_create_file(adev->dev, &dev_attr_pp_dpm_dcefclk); + if (ret) { + DRM_ERROR("failed to create device file pp_dpm_dcefclk\n"); + return ret; + } } } if (adev->asic_type >= CHIP_VEGA20) { @@ -2892,10 +2894,12 @@ int amdgpu_pm_sysfs_init(struct amdgpu_device *adev) return ret; } } - ret = device_create_file(adev->dev, &dev_attr_pp_dpm_pcie); - if (ret) { - DRM_ERROR("failed to create device file pp_dpm_pcie\n"); - return ret; + if (adev->asic_type != CHIP_ARCTURUS) { + ret = device_create_file(adev->dev, &dev_attr_pp_dpm_pcie); + if (ret) { + DRM_ERROR("failed to create device file pp_dpm_pcie\n"); + return ret; + } } ret = device_create_file(adev->dev, &dev_attr_pp_sclk_od); if (ret) { @@ -2999,9 +3003,11 @@ void amdgpu_pm_sysfs_fini(struct amdgpu_device *adev) device_remove_file(adev->dev, &dev_attr_pp_dpm_mclk); if (adev->asic_type >= CHIP_VEGA10) { device_remove_file(adev->dev, &dev_attr_pp_dpm_socclk); - device_remove_file(adev->dev, &dev_attr_pp_dpm_dcefclk); + if (adev->asic_type != CHIP_ARCTURUS) + device_remove_file(adev->dev, &dev_attr_pp_dpm_dcefclk); } - device_remove_file(adev->dev, &dev_attr_pp_dpm_pcie); + if (adev->asic_type != CHIP_ARCTURUS) + device_remove_file(adev->dev, &dev_attr_pp_dpm_pcie); if (adev->asic_type >= CHIP_VEGA20) device_remove_file(adev->dev, &dev_attr_pp_dpm_fclk); device_remove_file(adev->dev, &dev_attr_pp_sclk_od); -- 2.22.0 _______________________________________________ amd-gfx mailing list amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx