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drm/amdgpu: support dpm level modification under virtualization v3

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Under vega10 virtualuzation, smu ip block will not be added.
Therefore, we need add pp clk query and force dpm level function
at amdgpu_virt_ops to support the feature.

v2: add get_pp_clk existence check and use kzalloc to allocate buf

v3: return -ENOMEM for allocation failure and correct the coding style

Signed-off-by: Yintian Tao <yttao@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Yintian Tao
2019-04-09 20:33:20 +08:00
committed by Alex Deucher
parent b0960c3592
commit bb5a2bdf36
7 changed files with 165 additions and 0 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
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@@ -327,6 +327,18 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
goto fail;
}
if (amdgpu_sriov_vf(adev)) {
if (amdgim_is_hwperf(adev) &&
adev->virt.ops->force_dpm_level) {
mutex_lock(&adev->pm.mutex);
adev->virt.ops->force_dpm_level(adev, level);
mutex_unlock(&adev->pm.mutex);
return count;
} else {
return -EINVAL;
}
}
if (current_level == level)
return count;
@@ -790,6 +802,10 @@ static ssize_t amdgpu_get_pp_dpm_sclk(struct device *dev,
struct drm_device *ddev = dev_get_drvdata(dev);
struct amdgpu_device *adev = ddev->dev_private;
if (amdgpu_sriov_vf(adev) && amdgim_is_hwperf(adev) &&
adev->virt.ops->get_pp_clk)
return adev->virt.ops->get_pp_clk(adev, PP_SCLK, buf);
if (is_support_sw_smu(adev))
return smu_print_clk_levels(&adev->smu, PP_SCLK, buf);
else if (adev->powerplay.pp_funcs->print_clock_levels)