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authorAlex Deucher <alexander.deucher@amd.com>2018-04-19 15:02:52 -0400
committerAlex Deucher <alexander.deucher@amd.com>2018-05-15 14:43:45 -0400
commitd54bb40f607d40fca60da0613c65005086653300 (patch)
tree7bc96946387d72f068999e2ca71842abb6bf391c /drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
parentca8d40ca194dfb573e59a5e42b88da83e63a6630 (diff)
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/gpu/drm/amd/amdgpu/amdgpu_pm.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c11
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:
408 return count; 408 return count;
409} 409}
410 410
411/**
412 * DOC: pp_table
413 *
414 * The amdgpu driver provides a sysfs API for uploading new powerplay
415 * tables. The file pp_table is used for this. Reading the file
416 * will dump the current power play table. Writing to the file
417 * will attempt to upload a new powerplay table and re-initialize
418 * powerplay using that new table.
419 *
420 */
421
411static ssize_t amdgpu_get_pp_table(struct device *dev, 422static ssize_t amdgpu_get_pp_table(struct device *dev,
412 struct device_attribute *attr, 423 struct device_attribute *attr,
413 char *buf) 424 char *buf)