diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 35 |
1 files changed, 35 insertions, 0 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 9610e628baf0..ae6b1313403e 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 @@ -2184,6 +2184,38 @@ static const struct drm_info_list amdgpu_dm_debugfs_list[] = { }; /* + * Sets the force_timing_sync debug optino from the given string. + * All connected displays will be force synchronized immediately. + * Usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_dm_force_timing_sync + */ +static int force_timing_sync_set(void *data, u64 val) +{ + struct amdgpu_device *adev = data; + + adev->dm.force_timing_sync = (bool)val; + + amdgpu_dm_trigger_timing_sync(adev->ddev); + + return 0; +} + +/* + * Gets the force_timing_sync debug option value into the given buffer. + * Usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_force_timing_sync + */ +static int force_timing_sync_get(void *data, u64 *val) +{ + struct amdgpu_device *adev = data; + + *val = adev->dm.force_timing_sync; + + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(force_timing_sync_ops, force_timing_sync_get, + force_timing_sync_set, "%llu\n"); + +/* * Sets the DC visual confirm debug option from the given string. * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_visual_confirm */ @@ -2242,5 +2274,8 @@ int dtn_debugfs_init(struct amdgpu_device *adev) debugfs_create_file_unsafe("amdgpu_dm_dmub_fw_state", 0644, root, adev, &dmub_fw_state_fops); + debugfs_create_file_unsafe("amdgpu_dm_force_timing_sync", 0644, root, + adev, &force_timing_sync_ops); + return 0; } |