kernel/linux.git/drivers/gpu/drm/amd/display/dc/dm_services.h, branch v4.20.9

drm/amd/display: Support reading hw state from debugfs file

2018-08-27T20:20:49+00:00

[Why] Logging hardware state can be done by triggering a write to the debugfs file. It would also be useful to be able to read the hardware state from the debugfs file to be able to generate a clean log without timestamps. [How] Usage: cat /sys/kernel/debug/dri/0/amdgpu_dm_dtn_log Threading is an obvious concern when dealing with multiple debugfs operations and blocking on global state in dm or dc seems unfavorable. Adding an extra parameter for the debugfs log context state is the implementation done here. Existing code that made use of DTN_INFO and its associated macros needed to be refactored to support this. We don't know the size of the log in advance so it reallocates the log string dynamically. Once the log has been generated it's copied into the user supplied buffer for the debugfs. This allows for seeking support but it's worth nothing that unlike triggering output via dmesg the hardware state might change in-between reads if your buffer size is too small. Signed-off-by: Nicholas Kazlauskas Reviewed-by: Jordan Lazare Acked-by: Leo Li Signed-off-by: Alex Deucher

amdgpu: display: use modern ktime accessors

2018-06-19T18:17:38+00:00

getrawmonotonic64() is deprecated because of the nonstandard naming. The replacement functions ktime_get_raw_ns() also simplifies the callers. Signed-off-by: Arnd Bergmann Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Fix up dm logging functionality

2018-05-18T21:08:26+00:00

Signed-off-by: Anthony Koo Reviewed-by: Aric Cyr Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: add delay between panel pwr off to on.

2018-04-11T18:08:06+00:00

As per eDP 1.4 spec, there must be at least 500ms delay between eDP power off and on. This change added time stamp when edp power off, which can be used to calculate duration time when edp power on. If duration less than 500ms, add a wait. Signed-off-by: Charlene Liu Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: Remove unused dm_pp_ interfaces

2018-02-19T19:20:16+00:00

Signed-off-by: Harry Wentland Reviewed-by: Bhawanpreet Lakha Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: performance profiling instrumentation

2017-12-06T17:48:08+00:00

Signed-off-by: Tony Cheng Reviewed-by: Yongqiang Sun Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amdgpu/display: remove unused REG_OFFSET macro

2017-11-02T17:43:24+00:00

The name conflicts with another macro of the same name on the ARM ixp4xx platform, leading to build errors. Neither of the users actually should use a name that generic, but the other one was here first and the dc driver doesn't actually use it. Reviewed-by: Harry Wentland Signed-off-by: Arnd Bergmann Signed-off-by: Alex Deucher

drm/amd/display: Move OS types to os_types.h

2017-10-21T20:51:49+00:00

Some of this stuff is not really dm_services Signed-off-by: Harry Wentland Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display: add performance trace macro to dc

2017-10-21T20:50:00+00:00

Signed-off-by: Dmytro Laktyushkin Reviewed-by: Tony Cheng Acked-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amd/display/dc: drop dm_delay_in_microseconds

2017-10-17T00:43:05+00:00

Use udelay directly. Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher