diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4243-drm-amdgpu-pm-document-pp_table.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4243-drm-amdgpu-pm-document-pp_table.patch | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4243-drm-amdgpu-pm-document-pp_table.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4243-drm-amdgpu-pm-document-pp_table.patch new file mode 100644 index 00000000..044f2739 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4243-drm-amdgpu-pm-document-pp_table.patch @@ -0,0 +1,39 @@ +From 1990b877ce450e26bae85244b759875daebc035a Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +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 <Felix.Kuehling@amd.com> +Reviewed-by: Huang Rui <ray.huang@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + 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 + |