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Author SHA1 Message Date
Hans de Goede
62f03dad76 drm/amd/display/amdgpu_dm: Pass proper parent for backlight device registration v3
The parent for the backlight device should be the drm-connector object,
not the PCI device.

Userspace relies on this to be able to detect which backlight class device
to use on hybrid gfx devices where there may be multiple native (raw)
backlight devices registered.

Specifically gnome-settings-daemon expects the parent device to have
an "enabled" sysfs attribute (as drm_connector devices do) and tests
that this returns "enabled" when read.

This aligns the parent of the backlight device with i915, nouveau, radeon.
Note that drivers/gpu/drm/amd/amdgpu/atombios_encoders.c also already
uses the drm_connector as parent, only amdgpu_dm.c used the PCI device
as parent before this change.

Changes in v3:
Make amdgpu_dm_register_backlight_device() check bl_idx != 1 before
registering the backlight since amdgpu_dm_connector_late_register()
now calls it for _all_ connectors.

Changes in v2:
Together with changing the parent, also move the registration to
drm_connector_funcs.late_register() this is necessary because the parent
device (which now is the drm_connector) must be registered before
the backlight class device is, otherwise the backlight class device ends
up without any parent set at all.

This brings the backlight class device registration timing inline with
nouveau and i915 which also use drm_connector_funcs.late_register()
for this.

Note this slightly changes backlight_device_register() error handling,
instead of not increasing dm->num_of_edps and re-using the current
bl_idx for a potential other backlight device, dm->backlight_dev[bl_idx]
is now simply left NULL on failure. This is ok because all code
looking at dm->backlight_dev[i] also checks it is not NULL.

Link: https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/issues/730
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-31 11:06:42 -04:00
Hans de Goede
213eca2b0c drm/amd/display/amdgpu_dm: Make amdgpu_dm_register_backlight_device() take an amdgpu_dm_connector
Make amdgpu_dm_register_backlight_device() take an amdgpu_dm_connector
pointer to the connector for which it should register the backlight
as its only argument.

This is a preparation patch for moving the actual backlight class device
registering to drm_connector_funcs.late_register.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-31 11:06:41 -04:00
Hans de Goede
618e51cd52 drm/amd/display/amdgpu_dm: Move most backlight setup into setup_backlight_device()
Rename register_backlight_device() to setup_backlight_device()
and move all backlight setup related calls from
amdgpu_dm_register_backlight_device() and from
amdgpu_dm_initialize_drm_device() there.

This leaves amdgpu_dm_register_backlight_device() dealing purely
with registering the actual backlight class device.

This is a preparation patch for moving the actual backlight class device
registering to drm_connector_funcs.late_register.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-31 11:06:41 -04:00
Hans de Goede
f196198caf drm/amd/display/amdgpu_dm: Add a bl_idx to amdgpu_dm_connector
Currently functions like update_connector_ext_caps() and
amdgpu_dm_connector_destroy() are iterating over dm->backlight_link[i]
to find the index of the (optional) backlight_dev associated with
the connector.

Instead make register_backlight_device() store the dm->backlight_dev[]
index used for the connector inside the amdgpu_dm_connector struct.

This removes the need to iterate over the dm->backlight_link[]
array and this is necessary as a preparation patch for moving
the actual backlight_device_register()
call to drm_connector_funcs.late_register.

While reworking update_connector_ext_caps() also remove the aconnector
and aconnector->dc_link NULL checks in this function. These are both
never NULL and are unconditionally derefed in its callers.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-31 11:06:41 -04:00
Fangzhi Zuo
68dc1846c3 drm/amd/display: Take FEC Overhead into Timeslot Calculation
8b/10b encoding needs to add 3% fec overhead into the pbn.
In the Synapcis Cascaded MST hub, the first stage MST branch device
needs the information to determine the timeslot count for the
second stage MST branch device. Missing this overhead will leads to
insufficient timeslot allocation.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-29 17:21:06 -04:00
Fangzhi Zuo
f4f3b7dedb drm/amd/display: Add DSC Support for Synaptics Cascaded MST Hub
Traditional synaptics hub has one MST branch device without virtual dpcd.
Synaptics cascaded hub has two chained MST branch devices. DSC decoding
is performed via root MST branch device, instead of the second MST branch
device.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2023-03-29 17:21:05 -04:00
Christophe JAILLET
0e909e4fa8 drm/amd/display: Slightly optimize dm_dmub_outbox1_low_irq()
A kzalloc()+memcpy() can be optimized in a single kmemdup().
This saves a few cycles because some memory doesn't need to be zeroed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-27 18:20:53 -04:00
Alex Hung
6d457ca162 drm/amd/display: remove outdated 8bpc comments
[Why]
The commit c76e483cd9 ("drm/amd/display: Don't restrict bpc to 8 bpc")
removes the historical 8bpc dependency and sets max_bpc to 16.

[How]
The comment that states "8bpc for non-edp" needs to be removed as well.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-23 09:34:07 -04:00
Alex Hung
52b29307a9 drm/amd/display: remove outdated 8bpc comments
[Why]
The commit c76e483cd9 ("drm/amd/display: Don't restrict bpc to 8 bpc")
removes the historical 8bpc dependency and sets max_bpc to 16.

[How]
The comment that states "8bpc for non-edp" needs to be removed as well.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-22 00:48:01 -04:00
Lee Jones
bc517825c5 drm/amd/display/amdgpu_dm/amdgpu_dm_helpers: Move defines out to where they are actually used
Fixes the following W=1 kernel build warning(s):

  drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h: At top level:
  drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:143:22:
      warning: ‘SYNAPTICS_DEVICE_ID’ defined but not used [-Wunused-const-variable=]
  drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:140:22:
      warning: ‘DP_VGA_LVDS_CONVERTER_ID_3’ defined but not used [-Wunused-const-variable=]
  drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:138:22:
      warning: ‘DP_VGA_LVDS_CONVERTER_ID_2’ defined but not used [-Wunused-const-variable=]
  drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:133:22:
      warning: ‘DP_SINK_DEVICE_STR_ID_2’ defined but not used [-Wunused-const-variable=]
  drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:132:22:
      warning: ‘DP_SINK_DEVICE_STR_ID_1’ defined but not used [-Wunused-const-variable=]

[snip 400 similar lines brevity]

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-22 00:48:00 -04:00
Jiapeng Chong
6091693a4b drm/amd/display: make is_synaptics_cascaded_panamera static
This symbol is not used outside of amdgpu_dm_mst_types.c, so marks it
static.

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:211:6: warning: no previous prototype for ‘is_synaptics_cascaded_panamera’.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4548
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-22 00:47:59 -04:00
Hans de Goede
ceb4a5619c drm/amd/display/amdgpu_dm: Refactor register_backlight_device()
Refactor register_backlight_device():

1) Turn the connector-type + signal check into an early exit
condition to avoid the indentation level of the rest of the code

2) Add an array bounds check for the arrays indexed by dm->num_of_edps

3) register_backlight_device() always increases dm->num_of_edps if
amdgpu_dm_register_backlight_device() has assigned a backlight_dev to
the current dm->backlight_link[dm->num_of_edps] slot.

So on its next call dm->backlight_dev[dm->num_of_edps] always point to
the next empty slot and the "if (!dm->backlight_dev[dm->num_of_edps])"
check will thus always succeed and can be removed.

4) Add a bl_idx local variable to use as array index, rather then
using dm->num_of_edps to improve the code readability.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-22 00:47:59 -04:00
Hans de Goede
4db231d7dd drm/amd/display/amdgpu_dm: Fix backlight_device_register() error handling
backlight_device_register() returns an ERR_PTR on error, but other code
such as amdgpu_dm_connector_destroy() assumes dm->backlight_dev[i] is NULL
if no backlight is registered.

Clear dm->backlight_dev[i] on registration failure, to avoid other code
trying to deref an ERR_PTR pointer.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-22 00:47:59 -04:00
Stylon Wang
c416a9e4e3 drm/amd/display: Clearly states if long or short HPD event in dmesg logs
[Why]
The log "DMUB HPD callback" is crucial to identify when DP tunneling
is been established and driver is notified of this event from DMUB.
Same log is shared for long and short hotplug event and we need to
check trailing DC debug log to distinguish between them two, making
debugging on DPIA related issues a bit more troublesome.

[How]
Clearly states in dmesg logs whether this is a long or short hotplug
event.

Reviewed-by: Hamza Mahfooz <Hamza.Mahfooz@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-15 18:45:26 -04:00
Fangzhi Zuo
2792f98cdb drm/amd/display: Take FEC Overhead into Timeslot Calculation
8b/10b encoding needs to add 3% fec overhead into the pbn.
In the Synapcis Cascaded MST hub, the first stage MST branch device
needs the information to determine the timeslot count for the
second stage MST branch device. Missing this overhead will leads to
insufficient timeslot allocation.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-14 15:35:39 -04:00
Wenjing Liu
98ce7d32e2 drm/amd/display: convert link.h functions to function pointer style
[Why & How]
All dc subcomponents should call another dc component via function pointers
stored in a component structure. This is part of dc coding convention since
the beginning. The reason behind this is to improve encapsulation and
polymorphism. The function contract is extracted into a single link service
structure defined in link.h header file and implemented only in link_factory.c instead
of spreading across multiple files in link component file structure.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-14 15:35:03 -04:00
Swapnil Patel
932698c88d drm/amd/display: default values for luminance range if they are 0
[why]
Currently if invalid luminescence range is reported in edid,
then the driver doesn't have default range to fallback to.

[How]
Add default range if, the range is 0.

Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Swapnil Patel <Swapnil.Patel@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-14 15:34:43 -04:00
Fangzhi Zuo
54c7b715b5 drm/amd/display: Add DSC Support for Synaptics Cascaded MST Hub
Traditional synaptics hub has one MST branch device without virtual dpcd.
Synaptics cascaded hub has two chained MST branch devices. DSC decoding
is performed via root MST branch device, instead of the second MST branch
device.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-14 15:34:30 -04:00
Benjamin Cheng
751281c555 drm/amd/display: Write to correct dirty_rect
When FB_DAMAGE_CLIPS are provided in a non-MPO scenario, the loop does
not use the counter i. This causes the fill_dc_dity_rect() to always
fill dirty_rects[0], causing graphical artifacts when a damage clip
aware DRM client sends more than 1 damage clip.

Instead, use the flip_addrs->dirty_rect_count which is incremented by
fill_dc_dirty_rect() on a successful fill.

Fixes: 30ebe41582 ("drm/amd/display: add FB_DAMAGE_CLIPS support")
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2453
Signed-off-by: Benjamin Cheng <ben@bcheng.me>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
2023-03-14 10:40:02 -04:00
Bhawanpreet Lakha
728cefa53a drm/amd/display: Fix HDCP failing to enable after suspend
[Why]
On resume some displays are not ready for HDCP, so they will fail if we
start the hdcp authentintication too soon.

Add a delay so that the displays can be ready before we start.

NOTE: Previoulsy this delay was set to 3 seconds but it was causing
issues with compliance, 2 seconds should enough for compliance and the
s3 resume case.

[How]
Change the Delay to 2 seconds.

Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-14 10:37:48 -04:00
Hamza Mahfooz
4648cf5fc8 drm/amd/display: use a more accurate check in dm_helpers_dp_read_dpcd()
We should be checking if drm_dp_dpcd_read() returns the size that we are
asking it to read instead of just checking if it is greater than zero.
So, compare the return value of drm_dp_dpcd_read() to the requested
read size.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-13 17:27:49 -04:00
Benjamin Cheng
566b657784 drm/amd/display: Write to correct dirty_rect
When FB_DAMAGE_CLIPS are provided in a non-MPO scenario, the loop does
not use the counter i. This causes the fill_dc_dity_rect() to always
fill dirty_rects[0], causing graphical artifacts when a damage clip
aware DRM client sends more than 1 damage clip.

Instead, use the flip_addrs->dirty_rect_count which is incremented by
fill_dc_dirty_rect() on a successful fill.

Fixes: 30ebe41582 ("drm/amd/display: add FB_DAMAGE_CLIPS support")
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2453
Signed-off-by: Benjamin Cheng <ben@bcheng.me>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-13 17:27:48 -04:00
Bhawanpreet Lakha
28f7e89718 drm/amd/display: Fix HDCP failing to enable after suspend
[Why]
On resume some displays are not ready for HDCP, so they will fail if we
start the hdcp authentintication too soon.

Add a delay so that the displays can be ready before we start.

NOTE: Previoulsy this delay was set to 3 seconds but it was causing
issues with compliance, 2 seconds should enough for compliance and the
s3 resume case.

[How]
Change the Delay to 2 seconds.

Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-13 17:27:48 -04:00
Shirish S
22f1482aff drm/amd/display: add sysfs entry to read PSR residency from firmware
[Why]
Currently there aren't any methods to determine PSR state residency.

[How]
create a sysfs entry for reading residency and internally hook it up
to existing functionality of reading PSR residency from firmware.

[Hamza: dropped the link.h include and made checkpatch happy]

Signed-off-by: Shirish S <shirish.s@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-13 17:27:48 -04:00
Jiapeng Chong
8866d62716 drm/amd/display: Use swap() instead of open coding it
Swap is a function interface that provides exchange function. To avoid
code duplication, we can use swap function.

./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:359:57-58: WARNING opportunity for swap().

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Link: https://bugzilla.openanolis.cn/show_bug.cgi?id=4448
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-13 17:15:05 -04:00
Tom Rix
3a906a0cb1 drm/amd/display: remove unused variable res_pool
With gcc and W=1, there is this error
drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_mst_types.c:1214:31:
  error: variable ‘res_pool’ set but not used [-Werror=unused-but-set-variable]
 1214 |         struct resource_pool *res_pool;
      |                               ^~~~~~~~

Since res_pool is unused, remove it.

Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-08 14:06:01 -05:00
David Tadokoro
6c5e25a025 drm/amd/display: add prefix to amdgpu_dm_crtc.h functions
Some amdgpu_dm_crtc.h functions didn't have names that indicated where
they were declared.

To better filter results in debug tools like ftrace, prefix these
functions with 'amdgpu_dm_crtc_'.

Signed-off-by: David Tadokoro <davidbtadokoro@usp.br>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-08 14:05:53 -05:00
Alex Deucher
a9d491d99e Revert "drm/amd/display: Pass proper parent for DM backlight device registration"
This reverts commit d24b77e444.

This does not work as expected.

Bug: https://gitlab.gnome.org/GNOME/gnome-settings-daemon/-/issues/730
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-08 14:05:49 -05:00
David Tadokoro
c0a76ae874 drm/amd/display: remove legacy fields of dc_plane_cap struct
The fields blends_with_above and blends_with_below of struct
dc_plane_cap (defined in dc/dc.h) are boolean and set to true by
default. All instances of a dc_plane_cap maintain the default values of
both. Also, there is only one if statement that checks those fields and
there would be the same effect if it was deleted (assuming that those
fields are always going to be true).

For this reason, considering both fields as legacy ones, this commit
removes them and the aforementioned if statement.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: David Tadokoro <davidbtadokoro@usp.br>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-08 14:05:31 -05:00
David Tadokoro
8bf0d9cdf3 drm/amd/display: add prefix to amdgpu_dm_plane.h functions
The amdgpu_dm_plane.h functions didn't have names that indicated where
they were declared.

To better filter results in debug tools like ftrace, prefix these
functions with 'amdgpu_dm_plane_'.

Note that we may want to make this same change in other files like
amdgpu_dm_crtc.h.

Signed-off-by: David Tadokoro <davidbtadokoro@usp.br>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-08 14:04:45 -05:00
Rodrigo Siqueira
bb46a6a9ba drm/amd/display: Ensure that planes are in the same order
The function dc_update_planes_and_stream handles multiple cases where DC
needs to remove and add planes in the commit tail phase. After Linux
started to use this function, some of the IGT kms_plane started to fail;
one good example to illustrate why the new sequence regressed IGT is the
subtest plane-position-hole which has the following diagram as a
template:

 +--------------------+        +-----------------------+
 | +-----+            |        | +-----+               |
 | |     |            |        | | +-----+             |
 | |  +--+            | ==>    | | |   | |             |
 | |__|               |        | +-|---+ |             |
 |                    |        |   +-----+             |
 |                    |        |                       |
 +--------------------+        +-----------------------+
   (a) Final image                (b) Composed image

IGT expects image (a) as the final result of two plane compositions as
described in figure (b). After the migration to the new sequence, the
last plane order is changed, and DC generates the following image:

+---------------------+
| +-----+             |
| |     |             |
| |     |             |
| +-----+             |
|                     |
+---------------------+

Notice that the generated image by DC is different because the small
square that should be composed on top of the primary plane is below the
primary plane. For this reason, the CRC will mismatch with the expected
value. Since the function dc_add_all_planes_for_stream re-append all the
new planes back to the dc_validation_set, this commit ensures that the
original sequence is maintained. After this change, all CI tests in all
ASICs start to pass again.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Suggested-by: Melissa Wen <mwen@igalia.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:41 -05:00
Rodrigo Siqueira
81f743a08f drm/amd/display: Add wrapper to call planes and stream update
[Why & How]
This commit is part of a sequence of changes that replaces the commit
sequence used in the DC with a new one. As a result of this transition,
we moved some specific parts from the commit sequence and brought them
to amdgpu_dm. This commit adds a wrapper inside DM that enable our
drivers to do any necessary preparation or change before we offload the
plane/stream update to DC.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:41 -05:00
Rodrigo Siqueira
f751128982 drm/amd/display: Use dc_update_planes_and_stream
[Why & How]
The old dc_commit_updates_for_stream lacks manipulation for many corner
cases where the DC feature requires special attention; as a result, it
starts to show its limitation (e.g., the SubVP feature is not supported
by it, among other cases). To modernize and unify our internal API, this
commit replaces the old dc_commit_updates_for_stream with
dc_update_planes_and_stream, which has more features.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:41 -05:00
Rodrigo Siqueira
b8272241ff drm/amd/display: Drop dc_commit_state in favor of dc_commit_streams
[Why & How]
There are two functions responsible for handling the DC commit state:
dc_commit_state and dc_commit_streams. Both have the same goal, but
dc_commit_streams surpess dc_commit_state in terms of completeness. For
this reason, maintaining these two functions makes maintainability
unnecessarily complicated. This commit replaces the old dc_commit_state
in favor of dc_commit_streams, and removes the old dc_commit_state.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:41 -05:00
Wayne Lin
b5ac70369e drm/amd/display: Pass the right info to drm_dp_remove_payload
[Why & How]
drm_dp_remove_payload() interface was changed. Correct amdgpu dm code
to pass the right parameter to the drm helper function.

Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@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>
2023-03-07 14:22:40 -05:00
Harry Wentland
4652ae7a51 drm/amd/display: Rename DCN config to FP
[Why & How]
The only reason we have the DCN config is for
floating point support. Rename it to make that
clear and (hopefully) avoid misuse of the config
in the future.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:40 -05:00
Harry Wentland
bf77fda024 drm/amd/display: Drop unnecessary DCN guards
[Why]
DM is littered with DCN guards leading to frequent
breakages on non-DCN builds when new code is added.

[How]
Remove all guards that are not needed.

Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:40 -05:00
Harry Wentland
efa4c4df86 drm/amd/display: call remove_stream_from_ctx from res_pool funcs
[Why & How]
DM should never use a non-interface function to call into
DC. The original code is incorrect on ASICs that don't
use DCN20's remove_stream_from_ctx function.

Reviewed-by: Aurabindo Pillai <Aurabindo.Pillai@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:40 -05:00
Harry Wentland
1e88eb1b2c drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP
[Why & How]
There is no reason we still need a config option for this.

Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:39 -05:00
Harry Wentland
11efe095df drm/amd/display: Fix no-DCN build
[Why & How]
This fixes a couple misplaced CONFIG_DRM_AMD_DC_DCN
blocks.

Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:39 -05:00
Harry Wentland
c0a561d96a drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDR
[Why & How]
Remove dead code.

Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:39 -05:00
Mike Hsieh
de534c1cb0 drm/amd/display: Add height granularity limitation for dsc slice height calculation
[WHY]
eDP add new limitation for Y granularity for selected update feature.
DSC does not include this limitation while calculating slice height.

[HOW]
Add new limitation while looking for DSC slice height.

Reviewed-by: Cruise Hung <Cruise.Hung@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Mike Hsieh <Mike.Hsieh@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-07 14:22:39 -05:00
Sung Joon Kim
a8af68f79d drm/amd/display: Extend Freesync over PCon support for more devices
[why]
More branch devices are able to support Freesync
over PCon so include them in the list of supporting devices.

[how]
Add more compatible PCon devices in the whitelist
for Freesync over Pcon.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-01 22:44:38 -05:00
Ryan Lin
01a18aa309 drm/amd/display: Ext displays with dock can't recognized after resume
[Why]
Needs to set the default value of the LTTPR timeout after resume.

[How]
Set the default (3.2ms) timeout at resuming if the sink supports
LTTPR

Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Ryan Lin <tsung-hua.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-01 22:42:53 -05:00
tiancyin
ca87c9ae70 drm/amd/display: fix dm irq error message in gpu recover
[Why]
Variable adev->crtc_irq.num_types was initialized as the value of
adev->mode_info.num_crtc at early_init stage, later at hw_init stage,
the num_crtc changed due to the display pipe harvest on some SKUs,
but the num_types was not updated accordingly, that cause below error
in gpu recover.

  *ERROR* amdgpu_dm_set_crtc_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_crtc_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_crtc_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_pflip_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_pflip_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_pflip_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_pflip_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_vupdate_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_vupdate_irq_state: crtc is NULL at id :3
  *ERROR* amdgpu_dm_set_vupdate_irq_state: crtc is NULL at id :3

[How]
Defer the initialization of num_types to eliminate the error logs.

Signed-off-by: tiancyin <tianci.yin@amd.com>
Reviewed-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-01 22:39:50 -05:00
Harry Wentland
c76e483cd9 drm/amd/display: Don't restrict bpc to 8 bpc
This will let us pass the kms_hdr.bpc_switch IGT
test.

The reason the bpc restriction was required is
historical. At one point in time we were not falling
back to a lower bpc when we didn't have enough
bandwidth for the maximum bpc reported by a display.
This meant that we couldn't enable some high refresh
modes unless we limitted the bpc.

Starting with this patch the issue is fixed:
commit cbd14ae7ea ("drm/amd/display: Fix
incorrectly pruned modes with deep color")

This patch implemented a fallback mechanism if mode
validation failed at the max bpc. This means users
now automatically get all modes that can be supported
by at least 6 bpc. The driver will enable the mode
with the highest possible bpc that is supported by
the display.

v2:
 - explain why this is no longer needed (Michel)
 - refer to commit that fixed bpc fallback (Michel)

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Cc: Pekka Paalanen <ppaalanen@gmail.com>
Cc: Sebastian Wick <sebastian.wick@redhat.com>
Cc: Vitaly.Prosyak@amd.com
Cc: Joshua Ashton <joshua@froggi.es>
Cc: dri-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Cc: Michel Dänzer <michel.daenzer@mailbox.org>
Reviewed-by: Joshua Ashton <joshua@froggi.es>
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-03-01 22:38:06 -05:00
Wenjing Liu
7ae1dbe654 drm/amd/display: merge dc_link.h into dc.h and dc_types.h
[why]
Remove the need to include dc_link.h separately. dc.h should contain
everything needed on DM side.

[How]
Merge dc_link.h into dc.h and dc_types.h so DM only needs to include
dc.h to use all link public functions.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-28 14:30:00 -05:00
Sung Joon Kim
6ed373b0d5 drm/amd/display: Extend Freesync over PCon support for more devices
[why]
More branch devices are able to support Freesync
over PCon so include them in the list of supporting devices.

[how]
Add more compatible PCon devices in the whitelist
for Freesync over Pcon.

Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Sung Joon Kim <sungjoon.kim@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-28 14:30:00 -05:00
Jasdeep Dhillon
c32699caec drm/amd/display: Updating Video Format Fall Back Policy.
[WHY]
Adding 1920x1080 as fail safe mode for
Video Format Fall Back Policy.

Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Jasdeep Dhillon <jdhillon@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-28 14:29:35 -05:00
Ryan Lin
1e5d4d8eb8 drm/amd/display: Ext displays with dock can't recognized after resume
[Why]
Needs to set the default value of the LTTPR timeout after resume.

[How]
Set the default (3.2ms) timeout at resuming if the sink supports
LTTPR

Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Ryan Lin <tsung-hua.lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-02-28 14:29:24 -05:00