linux.git/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c, branch v7.0

drm/amd/display: Refactor SMU tracing

2025-09-23T14:31:51+00:00

[WHY&HOW]
Add new tracing and performance measurements for SMU messaging.

Reviewed-by: Alvin Lee 
Signed-off-by: Dillon Varone 
Signed-off-by: Ivan Lipski 
Tested-by: Dan Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Add missing SPDX license identifier

2025-07-28T20:40:30+00:00

[Why]
All files should be properly classified.

[How]
Add missing SPDX-License-Identifier.

Reviewed-by: Sun peng (Leo) Li 
Signed-off-by: Mario Limonciello 
Signed-off-by: Ivan Lipski 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Add dummy interface for tracing DCN32 SMU messages

2024-04-10T02:03:13+00:00

[Why/How]
Some issues may require a trace of the previous SMU messages from DC to
understand the context and aid in debugging. Actual logging to be
implemented when needed.

Reviewed-by: Josip Pavic 
Acked-by: Roman Li 
Signed-off-by: George Shen 
Tested-by: Daniel Wheeler 
Signed-off-by: Alex Deucher

drm/amd/display: Decouple amdgpu_dm_trace from service

2020-10-26T17:33:59+00:00

Our DC currently uses some of the tracepoint function inside a DC
header, which means that many other files implicitly include part of the
trace function. This situation limits how we can expand this feature for
other parts of the driver by generating multiple compilation errors when
we try to reuse some of the existing structures. This commit decouples
part of the amdgpu_dm_trace from DC core to simplify the trace
enlargement in future changes.

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

drm/amd/display: Handle persistence in DM

2020-05-28T18:00:47+00:00

[Why]
Remove dm_write_persistent_data and dm_read_persistent_data as
persistence should be handled in DM.

[How]
Remove functions. Move read/write calls into DM layer while maintaining
logic.

Signed-off-by: Jaehyun Chung 
Reviewed-by: Anthony Koo 
Acked-by: Rodrigo Siqueira 
Signed-off-by: Alex Deucher

drm/amd: drop use of drmP.h in display/

2019-06-10T21:00:20+00:00

Drop all uses of drmP.h in drm/amd/display/.
Fix fallout.

Signed-off-by: Sam Ravnborg 
Reviewed-by: Alex Deucher 
Cc: "Christian König" 
Cc: "David (ChunMing) Zhou" 
Cc: David Airlie 
Cc: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20190609220757.10862-9-sam@ravnborg.org

drm: Split out drm_probe_helper.h

2019-01-24T12:20:42+00:00

Having the probe helper stuff (which pretty much everyone needs) in
the drm_crtc_helper.h file (which atomic drivers should never need) is
confusing. Split them out.

To make sure I actually achieved the goal here I went through all
drivers. And indeed, all atomic drivers are now free of
drm_crtc_helper.h includes.

v2: Make it compile. There was so much compile fail on arm drivers
that I figured I'll better not include any of the acks on v1.

v3: Massive rebase because i915 has lost a lot of drmP.h includes, but
not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h
there was still one, which this patch largely removes. Which means
rolling out lots more includes all over.

This will also conflict with ongoing drmP.h cleanup by others I
expect.

v3: Rebase on top of atomic bochs.

v4: Review from Laurent for bridge/rcar/omap/shmob/core bits:
- (re)move some of the added includes, use the better include files in
  other places (all suggested from Laurent adopted unchanged).
- sort alphabetically

v5: Actually try to sort them, and while at it, sort all the ones I
touch.

v6: Rebase onto i915 changes.

v7: Rebase once more.

Acked-by: Harry Wentland 
Acked-by: Sam Ravnborg 
Cc: Sam Ravnborg 
Cc: Jani Nikula 
Cc: Laurent Pinchart 
Acked-by: Rodrigo Vivi 
Acked-by: Benjamin Gaignard 
Acked-by: Jani Nikula 
Acked-by: Neil Armstrong 
Acked-by: Oleksandr Andrushchenko 
Acked-by: CK Hu 
Acked-by: Alex Deucher 
Acked-by: Sam Ravnborg 
Reviewed-by: Laurent Pinchart 
Acked-by: Liviu Dudau 
Signed-off-by: Daniel Vetter 
Cc: linux-arm-kernel@lists.infradead.org
Cc: virtualization@lists.linux-foundation.org
Cc: etnaviv@lists.freedesktop.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: spice-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-tegra@vger.kernel.org
Cc: xen-devel@lists.xen.org
Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch

BackMerge v4.18-rc7 into drm-next

2018-07-30T00:39:22+00:00

rmk requested this for armada and I think we've had a few
conflicts build up.

Signed-off-by: Dave Airlie

drm/amd/display: Convert 10kHz clks from PPLib into kHz for Vega

2018-07-12T14:48:57+00:00

The driver is expecting clock frequency in kHz, while SMU returns
the values in 10kHz, which causes the bandwidth validation to fail

4.18 has the faulty clock assignment in pp_to_dc_clock_levels_with_latency
only, which is only used by Vega. Make sure we multiply these values
by 10 here, as we do for other ASICs as powerplay assigned them
wrong. 4.19 has the proper fix in powerplay.

v2: Add Fixes tag
v3: Fixes -> Bugzilla, with simplified link

Bugzilla: https://bugs.freedesktop.org/107082

Signed-off-by: Mikita Lipski 
Signed-off-by: Harry Wentland 
Acked-by: Michel Dänzer 
Signed-off-by: Alex Deucher

drm/amd/display: Moving powerplay functions to a separate class

2018-07-05T21:38:41+00:00

Moving powerplay functions to a new amdgpu_dm_pp_smu class
and cleaning dm_services class from unused headers.

Signed-off-by: Mikita Lipski 
Reviewed-by: Tony Cheng 
Acked-by: Harry Wentland 
Signed-off-by: Alex Deucher