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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>
This commit is contained in:
Alex Deucher 2018-04-19 14:02:52 -05:00
parent ca8d40ca19
commit d54bb40f60
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
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@ -408,6 +408,17 @@ fail:
return count; 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, static ssize_t amdgpu_get_pp_table(struct device *dev,
struct device_attribute *attr, struct device_attribute *attr,
char *buf) char *buf)