kernel/linux.git/drivers/gpu/drm/amd/display/modules, branch v5.13.5

drm/amd/display: Avoid HDCP over-read and corruption

2021-07-19T08:04:35+00:00

[ Upstream commit 06888d571b513cbfc0b41949948def6cb81021b2 ] Instead of reading the desired 5 bytes of the actual target field, the code was reading 8. This could result in a corrupted value if the trailing 3 bytes were non-zero, so instead use an appropriately sized and zero-initialized bounce buffer, and read only 5 bytes before casting to u64. Signed-off-by: Kees Cook Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: fix HDCP reset sequence on reinitialize

2021-07-19T08:04:29+00:00

[ Upstream commit 99c248c41c2199bd34232ce8e729d18c4b343b64 ] [why] When setup is called after hdcp has already setup, it would cause to disable HDCP flow won’t execute. [how] Don't clean up hdcp content to be 0. Signed-off-by: Brandon Syu Reviewed-by: Wenjing Liu Acked-by: Wayne Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Always poll for rxstatus in authenticate

2021-04-21T01:41:47+00:00

[Why] Requirement from the spec - we shouldn't be potentially exiting out early based on encryption status. [How] Drop the calls from HDCP1 and HDCP2 execution that exit out early based on link encryption status. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Wenjing Liu Acked-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: add handling for hdcp2 rx id list validation

2021-04-21T01:37:51+00:00

[why] the current implementation of hdcp2 rx id list validation does not have handler/checker for invalid message status, e.g. HMAC, the V parameter calculated from PSP not matching the V prime from Rx. [how] return a generic FAILURE for any message status not SUCCESS or REVOKED. Signed-off-by: Dingchen (David) Zhang Reviewed-by: Bhawanpreet Lakha Acked-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fixed corruption on 4K tvs

2021-04-09T20:53:24+00:00

[WHY] When on the desktop freesync is not enabled, doing a frame stretch causes the TV to display undesired output. [HOW] By changing the logic so that when ever fresync is supported the TV is notified we are in fressync instead on a non fresync state. Signed-off-by: Harry VanZyllDeJong Reviewed-by: Tony Cheng Acked-by: Anthony Koo Acked-by: Jun Lei Acked-by: Qingqing Zhuo Signed-off-by: Alex Deucher

amd: display: modules: Remove repeated struct declaration

2021-04-09T20:50:38+00:00

struct mod_hdcp is declared twice. One is declared at 33rd line. The blew one is not needed. Remove the duplicate. Signed-off-by: Wan Jiabing Signed-off-by: Alex Deucher

drm/amd/display: Rename fs_params to hdr_tm_params

2021-04-09T20:48:21+00:00

[Why&How] Renaming structure to better indicate its meaning. Signed-off-by: Krunoslav Kovac Reviewed-by: Aric Cyr Acked-by: Anson Jacob Acked-by: Anthony Koo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: add mod hdcp interface for supporting encryption state query

2021-04-09T20:48:15+00:00

Signed-off-by: Wenjing Liu Reviewed-by: George Shen Acked-by: Anson Jacob Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: define mod_hdcp_display_disable_option struct

2021-04-09T20:48:11+00:00

Signed-off-by: Wenjing Liu Reviewed-by: George Shen Acked-by: Anson Jacob Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Change input parameter for set_drr

2021-04-09T20:41:36+00:00

[Why] Change set_drr to pass in the entire dc_crtc_timing_adjust structure instead of passing in the parameters individually. This is to more easily pass in required parameters in the adjust structure when it gets updated. Tested-by: Daniel Wheeler Signed-off-by: Alvin Lee Reviewed-by: Jun Lei Acked-by: Solomon Chiu Signed-off-by: Alex Deucher