kernel/linux.git/drivers/gpu/drm/amd/display/modules, branch v6.6.75

drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too

2024-11-01T00:58:33+00:00

commit ba1959f71117b27f3099ee789e0815360b4081dd upstream. Stuart Hayhurst has found that both at bootup and fullscreen VA-API video is leading to black screens for around 1 second and kernel WARNING [1] traces when calling dmub_psr_enable() with Parade 08-01 TCON. These symptoms all go away with PSR-SU disabled for this TCON, so disable it for now while DMUB traces [2] from the failure can be analyzed and the failure state properly root caused. Cc: Marc Rossi Cc: Hamza Mahfooz Link: https://gitlab.freedesktop.org/drm/amd/uploads/a832dd515b571ee171b3e3b566e99a13/dmesg.log [1] Link: https://gitlab.freedesktop.org/drm/amd/uploads/8f13ff3b00963c833e23e68aa8116959/output.log [2] Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2645 Reviewed-by: Leo Li Link: https://lore.kernel.org/r/20240205211233.2601-1-mario.limonciello@amd.com Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher (cherry picked from commit afb634a6823d8d9db23c5fb04f79c5549349628b) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Revert "Check HDCP returned status"

2024-10-17T13:24:13+00:00

[ Upstream commit bc2fe69f16c7122b5dabc294aa2d6065d8da2169 ] This reverts commit 5d93060d430b359e16e7c555c8f151ead1ac614b due to a power consumption regression. Reviewed-by: Rodrigo Siqueira Signed-off-by: Jerry Zuo Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Remove a redundant check in authenticated_dp

2024-10-17T13:24:13+00:00

[ Upstream commit 4b22869f76563ce1e10858d2ae3305affa8d4a6a ] [WHY] mod_hdcp_execute_and_set returns (*status == MOD_HDCP_STATUS_SUCCESS). When it return 0, it is guaranteed that status == MOD_HDCP_STATUS_SUCCESS will be evaluated as false. Since now we are using goto out already, all 3 if (status == MOD_HDCP_STATUS_SUCCESS) clauses are guaranteed to enter. Therefore we are removing the if statements due to redundancy. Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Hung Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Stable-dep-of: bc2fe69f16c7 ("drm/amd/display: Revert "Check HDCP returned status"") Signed-off-by: Sasha Levin

drm/amd/display: Round calculated vtotal

2024-10-04T14:29:47+00:00

commit c03fca619fc687338a3b6511fdbed94096abdf79 upstream. [WHY] The calculated vtotal may has 1 line deviation. To get precisely vtotal number, round the vtotal result. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Anthony Koo Signed-off-by: Robin Chen Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Check HDCP returned status

2024-09-12T09:11:30+00:00

[ Upstream commit 5d93060d430b359e16e7c555c8f151ead1ac614b ] [WHAT & HOW] Check mod_hdcp_execute_and_set() return values in authenticated_dp. This fixes 3 CHECKED_RETURN issues reported by Coverity. Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Add array index check for hdcp ddc access

2024-09-08T05:54:37+00:00

[ Upstream commit 4e70c0f5251c25885c31ee84a31f99a01f7cf50e ] [Why] Coverity reports OVERRUN warning. Do not check if array index valid. [How] Check msg_id valid and valid array index. Reviewed-by: Alex Hung Acked-by: Tom Chung Signed-off-by: Hersen Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Check index msg_id before read or write

2024-07-11T10:49:05+00:00

[ Upstream commit 59d99deb330af206a4541db0c4da8f73880fba03 ] [WHAT] msg_id is used as an array index and it cannot be a negative value, and therefore cannot be equal to MOD_HDCP_MESSAGE_ID_INVALID (-1). [HOW] Check whether msg_id is valid before reading and setting. This fixes 4 OVERRUN issues reported by Coverity. Reviewed-by: Rodrigo Siqueira Acked-by: Wayne Lin Signed-off-by: Alex Hung Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: revert Exit idle optimizations before HDCP execution

2024-06-27T11:49:15+00:00

commit f2703a3596a279b0be6eeed4c500bdbaa8dc3ce4 upstream. why and how: causes black screen on PNP on DCN 3.5 This reverts commit f30a3bea92bd ("drm/amd/display: Exit idle optimizations before HDCP execution") Cc: Mario Limonciello Cc: Alex Deucher Reviewed-by: Nicholas Kazlauskas Acked-by: Wayne Lin Signed-off-by: Martin Leung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Exit idle optimizations before HDCP execution

2024-06-27T11:49:02+00:00

[ Upstream commit f30a3bea92bdab398531129d187629fb1d28f598 ] [WHY] PSP can access DCN registers during command submission and we need to ensure that DCN is not in PG before doing so. [HOW] Add a callback to DM to lock and notify DC for idle optimization exit. It can't be DC directly because of a potential race condition with the link protection thread and the rest of DM operation. Cc: Mario Limonciello Cc: Alex Deucher Reviewed-by: Charlene Liu Acked-by: Alex Hung Signed-off-by: Nicholas Kazlauskas Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Fix nanosec stat overflow

2024-04-13T11:07:35+00:00

[ Upstream commit 14d68acfd04b39f34eea7bea65dda652e6db5bf6 ] [Why] Nanosec stats can overflow on long running systems potentially causing statistic logging issues. [How] Use 64bit types for nanosec stats to ensure no overflow. Reviewed-by: Rodrigo Siqueira Tested-by: Daniel Wheeler Signed-off-by: Aric Cyr Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin