From 1990b877ce450e26bae85244b759875daebc035a Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 19 Apr 2018 14:02:52 -0500 Subject: [PATCH 4243/5725] drm/amdgpu/pm: document pp_table This file is for uploading new powerplay tables. Acked-by: Felix Kuehling Reviewed-by: Huang Rui Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index 05d701b0..b659f4b3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -408,6 +408,17 @@ static ssize_t amdgpu_set_pp_force_state(struct device *dev, 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) -- 2.7.4