linux.git/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_irq.h, branch v7.0 Linux kernel source tree drm/amd/display: Add missing SPDX license identifier 2025-07-28T20:40:30+00:00 Mario Limonciello mario.limonciello@amd.com 2025-06-27T21:58:26+00:00 2efe08a1a98bc797f12242beab9a3e3cc351d0b3 [Why] All files should be properly classified. [How] Add missing SPDX-License-Identifier. Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Ivan Lipski <ivan.lipski@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
[Why]
All files should be properly classified.

[How]
Add missing SPDX-License-Identifier.

Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Ivan Lipski <ivan.lipski@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: Change amdgpu_dm_irq_resume_*() to void 2025-03-05T15:41:51+00:00 Mario Limonciello mario.limonciello@amd.com 2025-02-18T04:58:35+00:00 7b3e14acc1f205d05d001bdceb884c5568ef10b7 amdgpu_dm_irq_resume_early() and amdgpu_dm_irq_resume_late() don't have any error flows. Change the return type from integer to void. Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
amdgpu_dm_irq_resume_early() and amdgpu_dm_irq_resume_late() don't
have any error flows. Change the return type from integer to void.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: Change amdgpu_dm_irq_suspend() to void 2025-03-05T15:41:12+00:00 Mario Limonciello mario.limonciello@amd.com 2025-02-18T04:58:28+00:00 20ea0477686d69721a68315c971378884787fc23 amdgpu_dm_irq_suspend() doesn't have any error flows and always returns zero. Change the function to void. Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
amdgpu_dm_irq_suspend() doesn't have any error flows and always
returns zero.

Change the function to void.

Reviewed-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Wayne Lin <wayne.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: Support for DMUB AUX 2021-05-10T22:06:44+00:00 Jude Shih shenshih@amd.com 2021-04-20T02:19:37+00:00 81927e2808be5adace93c2012d45d6938d3a7aa0 [WHY] To process AUX transactions with DMUB using inbox1 and outbox1 mail boxes. [How] 1) Added inbox1 command DMUB_CMD__DP_AUX_ACCESS to issue AUX commands to DMUB in dc_process_dmub_aux_transfer_async(). DMUB processes AUX cmd with DCN and sends reply back in an outbox1 message triggering an outbox1 interrupt to driver. 2) In existing driver implementation, AUX commands are processed synchronously by configuring DCN reg. But in DMUB AUX, driver sends an inbox1 message and waits for a conditional variable (CV) which will be signaled by outbox1 ISR. 3) DM will retrieve Outbox1 message and send back reply to upper layer and complete the AUX command Signed-off-by: Jude Shih <shenshih@amd.com> Reviewed-by: Hanghong Ma <Hanghong.Ma@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Wayne Lin <Wayne.Lin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
[WHY]
To process AUX transactions with DMUB using inbox1 and outbox1 mail boxes.

[How]
1) Added inbox1 command DMUB_CMD__DP_AUX_ACCESS to issue AUX commands
   to DMUB in dc_process_dmub_aux_transfer_async(). DMUB processes AUX cmd
   with DCN and sends reply back in an outbox1 message triggering an
   outbox1 interrupt to driver.
2) In existing driver implementation, AUX commands are processed
   synchronously by configuring DCN reg. But in DMUB AUX, driver sends an
   inbox1 message and waits for a conditional variable (CV) which will be
   signaled by outbox1 ISR.
3) DM will retrieve Outbox1 message and send back reply to upper layer
   and complete the AUX command

Signed-off-by: Jude Shih <shenshih@amd.com>
Reviewed-by: Hanghong Ma <Hanghong.Ma@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Wayne Lin <Wayne.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: make amdgpu_dm_irq_handler static 2017-10-17T00:43:04+00:00 Alex Deucher alexander.deucher@amd.com 2017-10-11T14:03:10+00:00 8db02ca3410b0668d520c0c5d7ba0e7e3eaa811a It's not used outside the file. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
It's not used outside the file.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: remove unused functions in amdgpu_dm_irq.c 2017-10-17T00:43:04+00:00 Alex Deucher alexander.deucher@amd.com 2017-10-11T13:59:50+00:00 f1548455ce89cbb7708428f6a7989a3fe180ed55 Not used. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Not used.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: whitespace cleanup in amdgpu_dm_irq.c/h 2017-10-17T00:43:03+00:00 Alex Deucher alexander.deucher@amd.com 2017-10-11T13:53:16+00:00 e637525659ed04be89a7f79ccf6e94e1e5e40225 To match kernel standards. No intended functional change. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
To match kernel standards.  No intended functional change.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/display: Fix s3 hang on resume. 2017-09-26T21:22:35+00:00 Andrey Grodzovsky Andrey.Grodzovsky@amd.com 2017-03-31T18:15:31+00:00 9faa423716b17b0c9ba92fd12737968de6918d88 Avoid enabling CRTC_VERTICAL_INTERRUPT0 twice on resume. It's enabled once from within manage_dm_interrupts in mode set and another explicitly from amdgpu_dm_irq_resume_late. Seems it lead to CRTC hang. Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> Acked-by: Harry Wentland <Harry.Wentland@amd.com> Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Avoid enabling CRTC_VERTICAL_INTERRUPT0 twice on resume.
It's enabled once from within manage_dm_interrupts in mode set
and another explicitly from amdgpu_dm_irq_resume_late.
Seems it lead to CRTC hang.

Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drm/amd/dc: Add dc display driver (v2) 2017-09-26T21:01:32+00:00 Harry Wentland harry.wentland@amd.com 2017-09-12T19:58:20+00:00 4562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c Supported DCE versions: 8.0, 10.0, 11.0, 11.2 v2: rebase against 4.11 Signed-off-by: Harry Wentland <harry.wentland@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> 
Supported DCE versions: 8.0, 10.0, 11.0, 11.2

v2: rebase against 4.11

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>