linux.git/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_trace.h, branch v6.6.134

drm/amd/display: Add events log to trace OPTC lock and unlock

2022-10-24T18:36:06+00:00

As an attempt to offer more DCN debug tools for cases where the OPTC can
hang, this commit introduces a trace event responsible for showing OPTC
status when it requests lock and unlock.

Tested-by: Mark Broadworth 
Reviewed-by: Aurabindo Pillai 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher

drm: Drop drm_framebuffer.h from drm_crtc.h

2022-06-20T20:53:55+00:00

drm_crtc.h has no need for drm_frambuffer.h, so don't include it.
Avoids useless rebuilds of the entire universe when
touching drm_framebuffer.h.

Quite a few placs do currently depend on drm_framebuffer.h without
actually including it directly. All of those need to be fixed
up.

v2: Fix up msm some more
v2: Deal with ingenic and shmobile as well

Signed-off-by: Ville Syrjälä 
Link: https://patchwork.freedesktop.org/patch/msgid/20220614095449.29311-1-ville.syrjala@linux.intel.com
Acked-by: Sam Ravnborg 
Acked-by: Jani Nikula

drm/amd/display: Add control mechanism for FPU utilization

2021-08-06T01:17:59+00:00

DC invokes DC_FPU_START/END in multiple parts of the code; this can
create a situation where we invoke this FPU operation in a nested way or
exit too early. For avoiding this situation, this commit adds a
mechanism where dc_fpu_begin/end manages the access to
kernel_fpu_begin/end.

Change since V3:
- Rebase

Change since V2:
- Christian: Do not use this_cpu_* between get/put_cpu_ptr().

Change since V1:
- Use a better variable names
- Use get_cpu_ptr and put_cpu_ptr to better balance preemption enable
and disable

Cc: Harry Wentland 
Cc: Anson Jacob 
Cc: Christian König 
Cc: Hersen Wu 
Cc: Aric Cyr 
Cc: Jun Lei 
Cc: Dmytro Laktyushkin 
Cc: Qingqing Zhuo 
Reported-by: kernel test robot 
Signed-off-by: Rodrigo Siqueira 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/amd/display: Add control mechanism for FPU

2021-08-06T01:17:59+00:00

DC invokes DC_FPU_START/END in multiple parts of the code; this can
create a situation where we invoke this FPU operation in a nested way or
exit too early. For avoiding this situation, this commit adds a
mechanism where dc_fpu_begin/end manages the access to
kernel_fpu_begin/end.

Change since V3:
- Christian: Move PPC64 code to dc_fpu_begin/end.

Change since V2:
- Christian: Do not use this_cpu_* between get/put_cpu_ptr().

Change since V1:
- Use a better variable names
- Use get_cpu_ptr and put_cpu_ptr to better balance preemption enable
and disable

Cc: Harry Wentland 
Cc: Anson Jacob 
Cc: Christian König 
Cc: Hersen Wu 
Cc: Aric Cyr 
Cc: Jun Lei 
Cc: Dmytro Laktyushkin 
Cc: Qingqing Zhuo 
Signed-off-by: Rodrigo Siqueira 
Reviewed-by: Christian König 
Signed-off-by: Alex Deucher

drm/amd/display: Add refresh rate trace

2021-04-09T20:47:57+00:00

When we have to debug VRR issues, we usually want to know the current
refresh rate; for this reason, it is handy to have a way to check in
real-time the refresh rate value. This commit introduces a kernel trace
that can provide such information.

Signed-off-by: Rodrigo Siqueira 
Reviewed-by: Harry Wentland 
Acked-by: Anson Jacob 
Tested-by: Dan Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Log DMCUB trace buffer events

2021-04-09T20:40:43+00:00

[Why]
We want to log DMCUB trace buffer events as Linux kernel traces.

[How]
Register an IRQ handler for DMCUB outbox0 interrupt in amdgpu_dm,
and log the messages in the DMCUB tracebuffer to a new DMCUB
TRACE_EVENT as soon as we receive the outbox0 IRQ from DMCUB FW.

Tested-by: Daniel Wheeler 
Signed-off-by: Leo (Hanghong) Ma 
Reviewed-by: Harry Wentland 
Acked-by: Solomon Chiu 
Signed-off-by: Alex Deucher

drm/amd/display: Add tracepoint for capturing clocks state

2020-10-26T17:34:26+00:00

The clock state update is the source of many problems, and capturing
this sort of information helps debug. This commit introduces tracepoints
for capturing clock values and also add traces in DCE, DCN1, DCN2x, and
DCN3.

Signed-off-by: Rodrigo Siqueira 
Acked-by: Aurabindo Pillai 
Signed-off-by: Alex Deucher

drm/amd/display: Add pipe_state tracepoint

2020-10-26T17:34:20+00:00

This commit introduces a trace mechanism for struct pipe_ctx by adding a
middle layer struct in the amdgpu_dm_trace.h for capturing the most
important data from struct pipe_ctx and showing its data via tracepoint.
This tracepoint was added to dc.c and dcn10_hw_sequencer, however, it
can be added to other DCN architecture.

Signed-off-by: Rodrigo Siqueira 
Acked-by: Aurabindo Pillai 
Signed-off-by: Alex Deucher

drm/amd/display: Add tracepoint for amdgpu_dm

2020-10-26T17:34:14+00:00

Debug amdgpu_dm could be a complicated task, therefore, this commit adds
tracepoints in some convenient functions such as plane and connector
check inside amdgpu_dm.

Signed-off-by: Rodrigo Siqueira 
Acked-by: Aurabindo Pillai 
Signed-off-by: Alex Deucher

drm/amd/display: Rework registers tracepoint

2020-10-26T17:34:08+00:00

amdgpu_dc_rreg and amdgpu_dc_wreg are very similar, for this reason,
this commits abstract these two events by using DECLARE_EVENT_CLASS and
create an instance of it for each one of these events.

Signed-off-by: Rodrigo Siqueira 
Acked-by: Aurabindo Pillai 
Signed-off-by: Alex Deucher