linux-dev/drivers/gpu/drm/amd/display/dc/irq/dcn20, branch master

drm/amd/display: Turn global functions into static functions

2022-02-23T19:03:20Z

Turn previously global functions into static functions to avoid -Wmissing-prototype warnings, such as: drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn30/irq_service_dcn30.c:50:20: warning: no previous prototype for function 'to_dal_irq_source_dcn30' [-Wmissing-prototypes] enum dc_irq_source to_dal_irq_source_dcn30( ^ drivers/gpu/drm/amd/amdgpu/../display/dc/irq/dcn30/irq_service_dcn30.c:50:1: note: declare 'static' if the function is not intended to be used outside of this translation unit enum dc_irq_source to_dal_irq_source_dcn30( ^ static 1 warning generated. drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c:488:6: warning: no previous prototype for function 'dcn316_clk_mgr_helper_populate_bw_params' [-Wmissing-prototypes] void dcn316_clk_mgr_helper_populate_bw_params( ^ drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c:488:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void dcn316_clk_mgr_helper_populate_bw_params( ^ static 1 warning generated. v2: drop is_timing_changed hunk (Alex) Signed-off-by: Maíra Canal Signed-off-by: Alex Deucher

drm/amd/display: Revert W/A for hard hangs on DCN20/DCN21

2022-01-14T23:06:45Z

The WA from commit 2a50edbf10c8 ("drm/amd/display: Apply w/a for hard hang on HPD") and commit 1bd3bc745e7f ("drm/amd/display: Extend w/a for hard hang on HPD to dcn20") causes a regression in s0ix where the system will fail to resume properly on many laptops. Pull the workarounds out to avoid that s0ix regression in the common case. This HPD hang happens with an external device in special circumstances and a new W/A will need to be developed for this in the future. Cc: stable@vger.kernel.org Cc: Qingqing Zhuo Reported-by: Scott Bruce Reported-by: Chris Hixon Reported-by: spasswolf@web.de Link: https://bugzilla.kernel.org/show_bug.cgi?id=215436 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1821 Link: https://gitlab.freedesktop.org/drm/amd/-/issues/1852 Fixes: 2a50edbf10c8 ("drm/amd/display: Apply w/a for hard hang on HPD") Fixes: 1bd3bc745e7f ("drm/amd/display: Extend w/a for hard hang on HPD to dcn20") Reviewed-by: Nicholas Kazlauskas Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amd/display: Replace referral of dal with dc

2021-09-28T13:30:13Z

[Why] DC should be used in place of DAL in upstream. [How] Replace dal with dc in function names. Reviewed-by: Rodrigo Siqueira Acked-by: Anson Jacob Signed-off-by: Qingqing Zhuo Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Extend w/a for hard hang on HPD to dcn20

2021-09-23T19:17:30Z

[Why] HPD disable and enable sequences are not mutually exclusive on Linux. For HPDs that spans under 1s (i.e. HPD low = 1s), part of the disable sequence (specifically, a request to SMU to lower refclk) could come right before the call to PHY enablement, causing DMUB to access an irresponsive PHY and thus a hard hang on the system. [How] Disable 48mhz refclk off when there is any HPD status in connected state for dcn20. Reviewed-by: Hersen Wu Acked-by: Rodrigo Siqueira Signed-off-by: Qingqing Zhuo Signed-off-by: Alex Deucher

drm/amd/display: Support vertical interrupt 0 for all dcn ASIC

2021-03-24T03:36:31Z

[Why] When CONFIG_DRM_AMD_SECURE_DISPLAY is enabled, it will try to register vertical interrupt 0 for specific task. Currently, only dcn10 have defined relevant info for vertical interrupt 0. If we enable CONFIG_DRM_AMD_SECURE_DISPLAY for other dcn ASIC, will get DC_IRQ_SOURCE_INVALID while calling dc_interrupt_to_irq_source() and cause pointer errors. [How] Add support of vertical interrupt 0 for all dcn ASIC. v2: squash in build fix (Alex) Signed-off-by: Wayne Lin Reviewed-by: Nicholas Kazlauskas Acked-by: Solomon Chiu Signed-off-by: Alex Deucher

drm/amd/display: Add missing pflip irq for dcn2.0

2020-11-16T18:30:16Z

If we have more than 4 displays we will run into dummy irq calls or flip timout issues. Reviewed-by: Nicholas Kazlauskas Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amd/display: cleanup of construct and destruct funcs

2019-11-19T15:12:52Z

[Why] Too many construct functions which makes searching difficult, especially on some debuggers. [How] Append all construct and destruct functions with dcn number and object type to make each construct function name unique Signed-off-by: Anthony Koo Reviewed-by: Aric Cyr Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Register VUPDATE_NO_LOCK interrupts for DCN2

2019-08-15T15:56:25Z

[Why] These are needed to send back DRM vblank events in the case where VRR is on. Without the interrupt enabled we're deferring the events into the vblank queue and userspace is left waiting forever to get back the events they need. Found using igt@kms_vrr - the test fails immediately due to vblank timeout. [How] Register them the same way we're handling it for DCN1. This fixes igt@kms_vrr for DCN2. Signed-off-by: Nicholas Kazlauskas Reviewed-by: David Francis Acked-by: Leo Li Signed-off-by: Alex Deucher

Merge branch 'drm-next' into drm-next-5.3

2019-06-25T13:42:25Z

Backmerge drm-next and fix up conflicts due to drmP.h removal. Signed-off-by: Alex Deucher

drm/amd/display: Add vupdate interrupt sources to NV10

2019-06-22T14:34:10Z

[WHY] linux upstream already has interrupt vupdate for freesync in dcn10. dcn20 interrupt shares the same source code as dcn10. but dcn20 interrupt translator does not add vupdate interrupt. this cause index of vupdate aarray be negative which causes crash. [HOW] add vupdate into dc interrupt transltor Signed-off-by: hersen wu Reviewed-by: Leo Li Signed-off-by: Alex Deucher