kernel/linux.git/drivers/gpu/drm/amd/display/amdgpu_dm, branch v6.10.7

drm/amd/display: Don't register panel_power_savings on OLED panels

2024-08-29T15:35:53+00:00

commit 76cb763e6ea62e838ccc8f7a1ea4246d690fccc9 upstream. OLED panels don't support the ABM, they shouldn't offer the panel_power_savings attribute to the user. Check whether aux BL control support was enabled to decide whether to offer it. Reported-by: Gergo Koteles Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3359 Signed-off-by: Mario Limonciello Reviewed-by: Harry Wentland Tested-by: Gergo Koteles Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: fix s2idle entry for DCN3.5+

2024-08-29T15:35:43+00:00

commit f6098641d3e1e4d4052ff9378857c831f9675f6b upstream. To be able to get to the lowest power state when suspending systems with DCN3.5+, we must be in IPS before the display hardware is put into D3cold. So, to ensure that the system always reaches the lowest power state while suspending, force systems that support IPS to enter idle optimizations before entering D3cold. Reviewed-by: Roman Li Signed-off-by: Hamza Mahfooz Signed-off-by: Alex Deucher (cherry picked from commit 237193e21b29d4aa0617ffeea3d6f49e72999708) Cc: stable@vger.kernel.org # 6.10+ Signed-off-by: Greg Kroah-Hartman

Revert "drm/amd/display: Refactor function dm_dp_mst_is_port_support_mode()"

2024-08-19T04:05:40+00:00

This reverts commit 6b2fb172853261829229237766d078638267042f which is commit fa57924c76d995e87ca3533ec60d1d5e55769a27 upstream. It breaks the build on arm64 and arm systems, and trying to unwind the ifdef mess to fix it up was not simple at all. So revert it and wait for a fixed change to come back. Cc: Jerry Zuo Cc: Zaeem Mohamed Cc: Wayne Lin Cc: Daniel Wheeler Cc: Alex Deucher Cc: Kevin Holm Reported-by: Guenter Roeck Link: https://lore.kernel.org/r/b27c5434-f1b1-4697-985b-91bb3e9a22df@roeck-us.net Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Solve mst monitors blank out problem after resume

2024-08-19T04:05:39+00:00

commit e33697141bac18906345ea46533a240f1ad3cd21 upstream. [Why] In dm resume, we firstly restore dc state and do the mst resume for topology probing thereafter. If we change dpcd DP_MSTM_CTRL value after LT in mst reume, it will cause light up problem on the hub. [How] Revert commit 202dc359adda ("drm/amd/display: Defer handling mst up request in resume"). And adjust the reason to trigger dc_link_detect by DETECT_REASON_RESUMEFROMS3S4. Cc: stable@vger.kernel.org Fixes: 202dc359adda ("drm/amd/display: Defer handling mst up request in resume") Signed-off-by: Wayne Lin Reviewed-by: Fangzhi Zuo Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Prevent IPX From Link Detect and Set Mode

2024-08-19T04:05:37+00:00

commit 1ff6631baeb1f5d69be192732d0157a06b43f20a upstream. IPX involvment proven to affect LT, causing link loss. Need to prevent IPX enabled in LT process in which link detect and set mode are main procedures that have LT taken place. Reviewed-by: Roman Li Acked-by: Zaeem Mohamed Signed-off-by: Fangzhi Zuo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Cc: Kevin Holm Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Separate setting and programming of cursor

2024-08-19T04:05:37+00:00

commit f63f86b5affcc2abd1162f11824b9386fc06ac94 upstream. We're seeing issues when user-space tries to do an atomic update of the primary surface, as well as the cursor. These two updates are separate calls into DC and don't currently act as an atomic update. This might lead to cursor updates being locked out and cursors stuttering. In order to solve this problem we want to separate the setting and programming of cursor attributes and position. That's what we're doing in this patch. The subsequent patch will then be able to use the cursor setters in independent cursor updates, as well as in atomic commits. Reviewed-by: Agustin Gutierrez Acked-by: Aurabindo Pillai Signed-off-by: Harry Wentland Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Cc: Kevin Holm Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Defer handling mst up request in resume

2024-08-19T04:05:37+00:00

commit 202dc359addab29451d3d18243c3d957da5392c8 upstream. [Why] Like commit ec5fa9fcdeca ("drm/amd/display: Adjust the MST resume flow"), we want to avoid handling mst topology changes before restoring the old state. If we enable DP_UP_REQ_EN before calling drm_atomic_helper_resume(), have changce to handle CSN event first and fire hotplug event before restoring the cached state. [How] Disable mst branch sending up request event before we restoring the cached state. DP_UP_REQ_EN will be set later when we call drm_dp_mst_topology_mgr_resume(). Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Hersen Wu Signed-off-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

Revert "drm/amd/display: Add NULL check for 'afb' before dereferencing in amdgpu_dm_plane_handle_cursor_update"

2024-08-14T13:34:37+00:00

commit 778e3979c5dc9cbdb5d1b92afed427de6bc483b4 upstream. [WHY] This patch is a dupplicate implementation of 14bcf29b, which we are reverting due to a regression with kms_plane_cursor IGT tests. This reverts commit 38e6f715b02b572f74677eb2f29d3b4bc6f1ddff. Reviewed-by: Srinivasan Shanmugam Tested-by: George Zhang Signed-off-by: Ivan Lipski Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Skip Recompute DSC Params if no Stream on Link

2024-08-14T13:34:25+00:00

commit 50e376f1fe3bf571d0645ddf48ad37eb58323919 upstream. [why] Encounter NULL pointer dereference uner mst + dsc setup. BUG: kernel NULL pointer dereference, address: 0000000000000008 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 4 PID: 917 Comm: sway Not tainted 6.3.9-arch1-1 #1 124dc55df4f5272ccb409f39ef4872fc2b3376a2 Hardware name: LENOVO 20NKS01Y00/20NKS01Y00, BIOS R12ET61W(1.31 ) 07/28/2022 RIP: 0010:drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper] Code: 01 00 00 48 8b 85 60 05 00 00 48 63 80 88 00 00 00 3b 43 28 0f 8d 2e 01 00 00 48 8b 53 30 48 8d 04 80 48 8d 04 c2 48 8b 40 18 <48> 8> RSP: 0018:ffff960cc2df77d8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8afb87e81280 RCX: 0000000000000224 RDX: ffff8afb9ee37c00 RSI: ffff8afb8da1a578 RDI: ffff8afb87e81280 RBP: ffff8afb83d67000 R08: 0000000000000001 R09: ffff8afb9652f850 R10: ffff960cc2df7908 R11: 0000000000000002 R12: 0000000000000000 R13: ffff8afb8d7688a0 R14: ffff8afb8da1a578 R15: 0000000000000224 FS: 00007f4dac35ce00(0000) GS:ffff8afe30b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000010ddc6000 CR4: 00000000003506e0 Call Trace: ? __die+0x23/0x70 ? page_fault_oops+0x171/0x4e0 ? plist_add+0xbe/0x100 ? exc_page_fault+0x7c/0x180 ? asm_exc_page_fault+0x26/0x30 ? drm_dp_atomic_find_time_slots+0x5e/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026] ? drm_dp_atomic_find_time_slots+0x28/0x260 [drm_display_helper 0e67723696438d8e02b741593dd50d80b44c2026] compute_mst_dsc_configs_for_link+0x2ff/0xa40 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] ? fill_plane_buffer_attributes+0x419/0x510 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] compute_mst_dsc_configs_for_state+0x1e1/0x250 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] amdgpu_dm_atomic_check+0xecd/0x1190 [amdgpu 62e600d2a75e9158e1cd0a243bdc8e6da040c054] drm_atomic_check_only+0x5c5/0xa40 drm_mode_atomic_ioctl+0x76e/0xbc0 [how] dsc recompute should be skipped if no mode change detected on the new request. If detected, keep checking whether the stream is already on current state or not. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Rodrigo Siqueira Signed-off-by: Fangzhi Zuo Signed-off-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher (cherry picked from commit 8151a6c13111b465dbabe07c19f572f7cbd16fef) Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Add null checker before passing variables

2024-08-14T13:34:15+00:00

[ Upstream commit 8092aa3ab8f7b737a34b71f91492c676a843043a ] Checks null pointer before passing variables to functions. This fixes 3 NULL_RETURNS issues reported by Coverity. Reviewed-by: Harry Wentland Acked-by: Hamza Mahfooz Signed-off-by: Alex Hung Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin