diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 39 |
1 files changed, 38 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index 1a9e3d3dfa38..1d5fc5ad3bee 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -995,6 +995,35 @@ static const struct drm_info_list amdgpu_dm_debugfs_list[] = { {"amdgpu_target_backlight_pwm", &target_backlight_read}, }; +/* + * Sets the DC visual confirm debug option from the given string. + * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_visual_confirm + */ +static int visual_confirm_set(void *data, u64 val) +{ + struct amdgpu_device *adev = data; + + adev->dm.dc->debug.visual_confirm = (enum visual_confirm)val; + + return 0; +} + +/* + * Reads the DC visual confirm debug option value into the given buffer. + * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_visual_confirm + */ +static int visual_confirm_get(void *data, u64 *val) +{ + struct amdgpu_device *adev = data; + + *val = adev->dm.dc->debug.visual_confirm; + + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(visual_confirm_fops, visual_confirm_get, + visual_confirm_set, "%llu\n"); + int dtn_debugfs_init(struct amdgpu_device *adev) { static const struct file_operations dtn_log_fops = { @@ -1020,5 +1049,13 @@ int dtn_debugfs_init(struct amdgpu_device *adev) adev, &dtn_log_fops); - return PTR_ERR_OR_ZERO(ent); + if (IS_ERR(ent)) + return PTR_ERR(ent); + + ent = debugfs_create_file_unsafe("amdgpu_dm_visual_confirm", 0644, root, + adev, &visual_confirm_fops); + if (IS_ERR(ent)) + return PTR_ERR(ent); + + return 0; } |