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| author | Alex Deucher <alexander.deucher@amd.com> | 2018-04-19 14:02:52 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-05-15 13:43:45 -0500 |
| commit | d54bb40f607d40fca60da0613c65005086653300 (patch) | |
| tree | 7bc96946387d72f068999e2ca71842abb6bf391c /drivers | |
| parent | ca8d40ca194dfb573e59a5e42b88da83e63a6630 (diff) | |
| download | linux-d54bb40f607d40fca60da0613c65005086653300.tar.bz2 | |
drm/amdgpu/pm: document pp_table
This file is for uploading new powerplay tables.
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index e33e0f4c4a28..9982f1b1f8c4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -408,6 +408,17 @@ fail: return count; } +/** + * DOC: pp_table + * + * The amdgpu driver provides a sysfs API for uploading new powerplay + * tables. The file pp_table is used for this. Reading the file + * will dump the current power play table. Writing to the file + * will attempt to upload a new powerplay table and re-initialize + * powerplay using that new table. + * + */ + static ssize_t amdgpu_get_pp_table(struct device *dev, struct device_attribute *attr, char *buf) |