This is a note to let you know that I've just added the patch titled
drm/amdgpu/disply: set num_crtc earlier
to the 5.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-disply-set-num_crtc-earlier.patch
and it can be found in the queue-5.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 578b6c487899179fed730e710ffec0b069917971 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
Date: Thu, 3 Dec 2020 16:06:26 -0500
Subject: drm/amdgpu/disply: set num_crtc earlier
From: Alex Deucher <alexander.deucher@xxxxxxx>
commit 578b6c487899179fed730e710ffec0b069917971 upstream.
To avoid a recently added warning:
Bogus possible_crtcs: [ENCODER:65:TMDS-65] possible_crtcs=0xf (full crtc mask=0x7)
WARNING: CPU: 3 PID: 439 at drivers/gpu/drm/drm_mode_config.c:617 drm_mode_config_validate+0x178/0x200 [drm]
In this case the warning is harmless, but confusing to users.
Fixes: 0df108237433 ("drm: Validate encoder->possible_crtcs")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=209123
Reviewed-by: Daniel Vetter <daniel@xxxxxxxx>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -977,9 +977,6 @@ static int amdgpu_dm_init(struct amdgpu_
goto error;
}
- /* Update the actual used number of crtc */
- adev->mode_info.num_crtc = adev->dm.display_indexes_num;
-
/* create fake encoders for MST */
dm_dp_create_fake_mst_encoders(adev);
@@ -3099,6 +3096,10 @@ static int amdgpu_dm_initialize_drm_devi
enum dc_connection_type new_connection_type = dc_connection_none;
const struct dc_plane_cap *plane;
+ dm->display_indexes_num = dm->dc->caps.max_streams;
+ /* Update the actual used number of crtc */
+ adev->mode_info.num_crtc = adev->dm.display_indexes_num;
+
link_cnt = dm->dc->caps.max_links;
if (amdgpu_dm_mode_config_init(dm->adev)) {
DRM_ERROR("DM: Failed to initialize mode config\n");
@@ -3160,8 +3161,6 @@ static int amdgpu_dm_initialize_drm_devi
goto fail;
}
- dm->display_indexes_num = dm->dc->caps.max_streams;
-
/* loops over all connectors on the board */
for (i = 0; i < link_cnt; i++) {
struct dc_link *link = NULL;
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-5.9/drm-amdgpu-fix-sdma-instance-fw-version-and-feature-version-init.patch
queue-5.9/drm-amdgpu-disply-set-num_crtc-earlier.patch
