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[2/2] drm/amdgpu: Example Usage in AMDGPU

Message ID 20210827234322.2740301-3-Jerry.Zuo@amd.com (mailing list archive)
State New, archived
Headers show
Series Update 128b/132b MST Slot Information | expand

Commit Message

Zuo, Jerry Aug. 27, 2021, 11:43 p.m. UTC
1. Decide MST Link Encoding Cap
2. Update MST First Link Slot Information

Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c      |  4 +++-
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c    | 10 ++++++++++
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h    |  2 ++
 3 files changed, 15 insertions(+), 1 deletion(-)

Comments

kernel test robot Aug. 28, 2021, 11:54 a.m. UTC | #1
Hi Fangzhi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip drm-exynos/exynos-drm-next tegra-drm/drm/tegra/for-next linus/master v5.14-rc7 next-20210827]
[cannot apply to drm/drm-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Fangzhi-Zuo/Update-128b-132b-MST-Slot-Information/20210828-082044
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-a005-20210827 (attached as .config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 4e1a164d7bd53653f79decc121afe784d2fde0a7)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/9b4444b8b7cc43f098ef1f3a234c304c0e537754
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Fangzhi-Zuo/Update-128b-132b-MST-Slot-Information/20210828-082044
        git checkout 9b4444b8b7cc43f098ef1f3a234c304c0e537754
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:447:23: error: implicit declaration of function 'dc_link_dp_mst_decide_link_encoding_format' [-Werror,-Wimplicit-function-declaration]
                   link_encoding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
                                       ^
>> drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:448:3: error: implicit declaration of function 'drm_dp_mst_update_coding_cap' [-Werror,-Wimplicit-function-declaration]
                   drm_dp_mst_update_coding_cap(&aconnector->mst_mgr, link_encoding_cap);
                   ^
   2 errors generated.


vim +/dc_link_dp_mst_decide_link_encoding_format +447 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c

   441	
   442	void get_mst_link_encoding_cap(struct amdgpu_dm_connector *aconnector)
   443	{
   444		u8 link_encoding_cap;
   445	
   446		if (aconnector->dc_link->type == dc_connection_mst_branch) {
 > 447			link_encoding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
 > 448			drm_dp_mst_update_coding_cap(&aconnector->mst_mgr, link_encoding_cap);
   449		}
   450	}
   451	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
diff mbox series

Patch

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 986c9d29d686..90edf0eae786 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2302,6 +2302,7 @@  static int dm_resume(void *handle)
 			dc_sink_release(aconnector->dc_sink);
 		aconnector->dc_sink = NULL;
 		amdgpu_dm_update_connector_after_detect(aconnector);
+		get_mst_link_encoding_cap(aconnector);
 		mutex_unlock(&aconnector->hpd_lock);
 	}
 	drm_connector_list_iter_end(&iter);
@@ -2673,6 +2674,7 @@  static void handle_hpd_irq(void *param)
 		if (aconnector->base.force == DRM_FORCE_UNSPECIFIED)
 			drm_kms_helper_hotplug_event(dev);
 	}
+	get_mst_link_encoding_cap(aconnector);
 	mutex_unlock(&aconnector->hpd_lock);
 
 }
@@ -3844,7 +3846,7 @@  static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev)
 				amdgpu_dm_set_psr_caps(link);
 		}
 
-
+		get_mst_link_encoding_cap(aconnector);
 	}
 
 	/* Software is initialized. Now we can register interrupt handlers. */
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 5568d4e518e6..2f029cbdd3f8 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -439,6 +439,16 @@  static const struct drm_dp_mst_topology_cbs dm_mst_cbs = {
 	.add_connector = dm_dp_add_mst_connector,
 };
 
+void get_mst_link_encoding_cap(struct amdgpu_dm_connector *aconnector)
+{
+	u8 link_encoding_cap;
+
+	if (aconnector->dc_link->type == dc_connection_mst_branch) {
+		link_encoding_cap = dc_link_dp_mst_decide_link_encoding_format(aconnector->dc_link);
+		drm_dp_mst_update_coding_cap(&aconnector->mst_mgr, link_encoding_cap);
+	}
+}
+
 void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
 				       struct amdgpu_dm_connector *aconnector,
 				       int link_index)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
index b38bd68121ce..8339053b2b70 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.h
@@ -35,6 +35,8 @@  void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm,
 				       struct amdgpu_dm_connector *aconnector,
 				       int link_index);
 
+void get_mst_link_encoding_cap(struct amdgpu_dm_connector *aconnector);
+
 void
 dm_dp_create_fake_mst_encoders(struct amdgpu_device *adev);