[Why]
After clkmgr rework it gets initialized after resource pool.
The clkmgr is used in resource pool init for xgmi path.
That causes driver crash on Vega20 with xgmi due to NULL deref.
[How]
Move xgmi compensation code to dce121_clk_mgr_construct()
That also allows to make dce121_clock_patch_xgmi_ss_info()
internal static function.
Signed-off-by: Roman Li <Roman.Li@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
this patch fixes below compilation error
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c: In
function ‘dcn10_apply_ctx_for_surface’:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_hw_sequencer.c:2378:3:
error: implicit declaration of function ‘udelay’
[-Werror=implicit-function-declaration]
udelay(underflow_check_delay_us);
Signed-off-by: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Found issue in EDID Emulation where if we connect a display using
a passive HDMI-DP dongle, disconnect it and then try to emulate
a display using DP, we could not see 4K modes. This was because
on a disconnect, dongle_max_pix_clk was still set so when we
emulate using DP, in dc_link_validate_mode_timing(), it would
think we were still using a dongle and limit the modes we support.
[How]
In dc_link_detect(), set dongle_max_pix_clk to 0 when we detect
a hotplug out ( if new_connection_type = dc_connection_none ).
Signed-off-by: Samson Tam <Samson.Tam@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
refactor a code so we will call clk_mgr's enable_pme_wa function so we
can use pme_wa for future asics. This way we don't need to worry about
different ASIC since clk_mgr already have that information
Signed-off-by: Su Sung Chung <Su.Chung@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
We incorrectly began powering down the display at boot/resume whenever
fast boot was not possible. This should not be done in the case where there
exists a stream for the eDP since this implies that we want to turn it on.
[How]
Add check for eDP stream to decide whether to power off edp.
Signed-off-by: SivapiriyanKumarasamy <sivapiriyan.kumarasamy@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Reza Amini <Reza.Amini@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Our existing logic in deciding whether to use RAM or ROM
depends on whether we are dealing with an identity gamma ramp.
[How]
In addition to the is_identity flag
a new is_logical_identity flag has been
added. The is_identity flag now denotes
whether the OS gamma is an RGB256 identity
and the new logical identity will inidicate
that the given gamma ramp regardless of its
type is identity.
Signed-off-by: Harmanprit Tatla <harmanprit.tatla@amd.com>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@amd.com>
Acked-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
For debugging underflow issues it can be useful to have asserts when the
underflow initially occurs.
[How]
Read the underflow status registers after actions that have a high risk
of causing underflow and assert that no underflow occurred. If underflow
occurred, clear the bit.
Signed-off-by: Thomas Lim <Thomas.Lim@amd.com>
Reviewed-by: Eric Yang <eric.yang2@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Currently vmid is decided internally inside dc. This makes it
difficult to use vmid use with external components.
This change moves vmid logic outside dc and allowing vmid to be
passed in as a parameter to DC.
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
HPD not going to be high if Panel VDD is off
And all AUX transaction will fail :(
[How]
1. Power on VDD before attempting detection if it isn't already on
2. Improve the robustness by having a retry mechanism on the
first DPCD read after VDD on. If a particular board always holds
HPD high incorrectly, the AUX access may fail, so we can retry
in those scenarios. This change would only improve logic
since it prevents AUX failure leading to bad resolution on internal
panel.
3. We should never need to re-detect internal panel, so logic
is re-arranged a bit to skip earlier.
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
1. Add i2c_hw_Status check to make sure when HW i2c is in use.
2. Don't reset HW engine in is_hw_busy() and instead do this in
process_transaction() because SW i2c does not check if hw i2c is in use
Signed-off-by: Derek Lai <Derek.Lai@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Almost every function in DC that works with stream state expects that
the current state on the stream is the one that it should be writing
out. These functions are typically triggered by specifying a particular
stream update - but the actual contents of the stream update itself
are ignored, leaving it to the DM to actually update the stream state
itself.
The problem with doing this in DM is a matter of timing. On Linux
most of this is incorrectly done in atomic check, when we actually want
it to be done during atomic commit tail while access to DC is locked.
To give an example, a commit requesting to modify color management
state for DM could come in, be rejected, but still have modified
the actual system state for the stream since it's shared memory. The
next time color management gets programmed it'll use the rejected
color management info - which might not even still be around if it's
a custom transfer function.
So a reasonable place to perform this is within DC itself and this is
the model that's currently in use for surface updates. DC can even
compare the current system state to the incoming surface update to
determine update level, something that can't currnetly be done with the
framework for stream updates.
[How]
Duplicate the framework used for surface updates for stream updates
as well. Copy all the updates after checking the update type.
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[WHY]
Some panels return a link rate of 0 (unknown) in DPCD 0. In this case,
an appropriate mode cannot be set, and certain panels will show
corruption as they are forced to use a mode they do not support.
[HOW]
Read DPCD 10 in the case where supported link rate from DPCD 0 is
unknown, and pass that value on to the reported link rate.
This re-introduces behaviour present in previous versions that appears
to have been accidentally removed.
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
DCN_VERSION_1_01 is no longer handled in the dal_hw_translate_init
switch since it was inadvertently dropped in the patch that removed the
unnecessary DCN1_01 guards.
This caused numerous regressions on DCN1_01 when loading the driver.
[How]
Add it back.
Fixes: 97df424fe7 ("drm/amd/display: Drop DCN1_01 guards")
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
We only want to manual trigger end-of-frame when the bottom-most
pipe is flipped to prevent overlays from ending the frame too early.
[How]
Check that the manual trigger is only firing on bottom plane.
Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Some backlight tests fail due to backlight settling
taking too long. This happens because the step
size used to change backlight levels is too small.
[How]
1. Change the size of the backlight gain step size
2. Change how DMCU firmware gets the step size value
so that it is passed in by driver during DMCU initn
Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Some displays take some time to power up AUX CH once they are
put into D3 state via write to DPCD 600h=2.
Interestingly enough, some display may simply NACK, but some might
also ACK with a bunch of 0s, which can cause issues with receiver
cap retrieval. Note that not all DPCD address return 0s, but in
particular it has been observed on some higher DPCD address such
as DPCD 2200h, etc.
[How]
Based on spec, receiver will monitor differential signal while in D3 and
AUX CH is in low power mode. When detected, it may allow up to
1 ms to power up AUX CH and reply.
If we read Sink power state D3, we should add 1 ms delay to satisfy
this spec requirement.
Signed-off-by: Anthony Koo <anthony.koo@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Some HW specific implementations can be pulled out into clk_mgr.c.
[How]
* Pull get_active_display_cnt out to clk_mgr.
* Pull out shared logic in set_dispclk and set_dprefclk
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Modern Standby may toggle display adapter state between D0
and D3 state unpredictably.
But events that cause transition to D0 are not always resulting
in a display light up scenario.
Modern eDP panels should be able to power on panel logic
quickly upon VDD going high. Based on spec, the T3 time
between VDD on and HPD high can be between 0 and 80 ms.
Doing any tricky sorts of optimization by powering on panel
VDD early during D0 transition on can negatively impact other
features due to unnecessary power drain and toggling when
final system state does not intend for the panel to be lit up.
We need OEMs to source higher end panels that have T3 time
close to 0 if they want quick S3/Modern Standby resume times.
[How]
Remove panel VDD power on in init_hw
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[why]
during It's possible to call dcn_validate_bandwidth with no plane.
In that case, as we are only intersted in if output timing is supported or not,
even if we cannot support native resolution, we still want to support lower
resolution if it is valid
[how]
if there exist no surface, make viewport/rec_out size at max 1080p. It is
already known that 1080p x 6(max # of pipes) is supported, so if we fail
validation, it is because of the stream
Signed-off-by: Su Sung Chung <Su.Chung@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[why]
by adding fast_validate flag, we are skipping some portion of
dcn_validate_bandwidth code that is not necessary for mode validation.
However we have a bug where it does not calculate
v->total_data_read_bandwidth, which is one of the factors determines the
result of the validation, and therefore report false positive during
mode validation.
[how]
add calculation of v->total_data_read_bandwidth outside of the region
that is guarded by fast_validate flag
Signed-off-by: Su Sung Chung <Su.Chung@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
1. DMCU is not running on some platform but driver still send ABM
command. It may cause assert due to DMCU is not alive.
2. To make sure PSR disable when driver disable
[How]
1. Add dmcu_is_running in ABM struct, driver can check this flag to
determine driver should send ABM command or not.
2. Send PSR disable command when destroy PSR
Signed-off-by: Paul Hsieh <paul.hsieh@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
In the previous implementation DRR event sometimes came
in during FP2 region which is a keep-out zone. This
would cause the frame not to latch until the next frame
which resulted in heavy flicker. To fix this we need
to make sure that it triggers in the BP.
[How]
1. Remove DRR programming during flip
2. Setup manual trigger for DRR event and trigger it
after surface programming is complete
Signed-off-by: Eryk Brol <eryk.brol@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
