diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2018-08-14 15:40:57 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-27 15:20:17 -0500 |
| commit | e498eb7136042aa9a352b1039c678537f4694158 (patch) | |
| tree | d764727b8a40ce5714fb40443fe4ab09351ae9f1 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | e5d0170e5644508a28e063995b89af4fdabd38b9 (diff) | |
drm/amd/display: Add support for hw_state logging via debugfs
[Why]
We have logging methods for printing hardware state for newer ASICs
but no way to trigger the log output.
[How]
Add support for triggering the output via writing to a debugfs file
entry. Log output currently goes into dmesg for convenience, but
accessing via a read should be possible later.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Jordan Lazare <Jordan.Lazare@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index ad11dc9e8c1d..7b857d47fadd 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -480,6 +480,11 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) goto error; } +#if defined(CONFIG_DEBUG_FS) + if (dtn_debugfs_init(adev)) + DRM_ERROR("amdgpu: failed initialize dtn debugfs support.\n"); +#endif + DRM_DEBUG_DRIVER("KMS initialized.\n"); return 0; |