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 | 37 |
1 files changed, 37 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 da17ece1a2c5..188039f14544 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 @@ -3491,6 +3491,40 @@ DEFINE_SHOW_ATTRIBUTE(mst_topo); DEFINE_DEBUGFS_ATTRIBUTE(visual_confirm_fops, visual_confirm_get, visual_confirm_set, "%llu\n"); + +/* + * Sets the DC skip_detection_link_training debug option from the given string. + * Example usage: echo 1 > /sys/kernel/debug/dri/0/amdgpu_skip_detection_link_training + */ +static int skip_detection_link_training_set(void *data, u64 val) +{ + struct amdgpu_device *adev = data; + + if (val == 0) + adev->dm.dc->debug.skip_detection_link_training = false; + else + adev->dm.dc->debug.skip_detection_link_training = true; + + return 0; +} + +/* + * Reads the DC skip_detection_link_training debug option value into the given buffer. + * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_skip_detection_link_training + */ +static int skip_detection_link_training_get(void *data, u64 *val) +{ + struct amdgpu_device *adev = data; + + *val = adev->dm.dc->debug.skip_detection_link_training; + + return 0; +} + +DEFINE_DEBUGFS_ATTRIBUTE(skip_detection_link_training_fops, + skip_detection_link_training_get, + skip_detection_link_training_set, "%llu\n"); + /* * Dumps the DCC_EN bit for each pipe. * Example usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dcc_en @@ -3584,6 +3618,9 @@ void dtn_debugfs_init(struct amdgpu_device *adev) debugfs_create_file_unsafe("amdgpu_dm_visual_confirm", 0644, root, adev, &visual_confirm_fops); + debugfs_create_file_unsafe("amdgpu_dm_skip_detection_link_training", 0644, root, adev, + &skip_detection_link_training_fops); + debugfs_create_file_unsafe("amdgpu_dm_dmub_tracebuffer", 0644, root, adev, &dmub_tracebuffer_fops); |