<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/gpu/drm/amd/display/dc/optc, branch v6.14</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>drm/amd/display: Add support to configure CRC window on specific CRC instance</title>
<updated>2025-01-10T17:03:45+00:00</updated>
<author>
<name>Wayne Lin</name>
<email>Wayne.Lin@amd.com</email>
</author>
<published>2024-12-06T05:51:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b6fcc3867d746c181d253b110236985b9b2ee2aa'/>
<id>b6fcc3867d746c181d253b110236985b9b2ee2aa</id>
<content type='text'>
[Why]
Have the need to specify the CRC window on specific CRC engine.
dc_stream_configure_crc() today calculates CRC on crc engine 0 only and always
resets CRC engine at first.

[How]
Add index parameter to dc_stream_configure_crc() for selecting the desired crc
engine. Additionally, add another parameter to specify whether to skip the
default reset of crc engine.

Reviewed-by: HaoPing Liu &lt;haoping.liu@amd.com&gt;
Signed-off-by: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Signed-off-by: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[Why]
Have the need to specify the CRC window on specific CRC engine.
dc_stream_configure_crc() today calculates CRC on crc engine 0 only and always
resets CRC engine at first.

[How]
Add index parameter to dc_stream_configure_crc() for selecting the desired crc
engine. Additionally, add another parameter to specify whether to skip the
default reset of crc engine.

Reviewed-by: HaoPing Liu &lt;haoping.liu@amd.com&gt;
Signed-off-by: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Signed-off-by: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: DML2.1 Post-Si Cleanup</title>
<updated>2025-01-10T17:00:34+00:00</updated>
<author>
<name>Rafal Ostrowski</name>
<email>rostrows@amd.com</email>
</author>
<published>2024-12-17T14:50:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=63ab80d9ac0adae2066b140ec30481ba4648140d'/>
<id>63ab80d9ac0adae2066b140ec30481ba4648140d</id>
<content type='text'>
[Why]
There are a few cleanup and refactoring tasks that need to be done
with the DML2.1 wrapper and DC interface to remove dependencies on
legacy structures and N-1 prototypes.

[How]
Implemented pipe_ctx-&gt;global_sync.
Implemented new functions to use pipe_ctx-&gt;hubp_regs and
pipe_ctx-&gt;global_sync:
- hubp_setup2
- hubp_setup_interdependent2
- Several other new functions for DCN 4.01 to support newer structures

Removed dml21_update_pipe_ctx_dchub_regs
Removed dml21_extract_legacy_watermark_set
Removed dml21_populate_pipe_ctx_dlg_param
Removed outdated dcn references in DML2.1 wrapper.

Reviewed-by: Austin Zheng &lt;austin.zheng@amd.com&gt;
Reviewed-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Rafal Ostrowski &lt;rostrows@amd.com&gt;
Signed-off-by: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[Why]
There are a few cleanup and refactoring tasks that need to be done
with the DML2.1 wrapper and DC interface to remove dependencies on
legacy structures and N-1 prototypes.

[How]
Implemented pipe_ctx-&gt;global_sync.
Implemented new functions to use pipe_ctx-&gt;hubp_regs and
pipe_ctx-&gt;global_sync:
- hubp_setup2
- hubp_setup_interdependent2
- Several other new functions for DCN 4.01 to support newer structures

Removed dml21_update_pipe_ctx_dchub_regs
Removed dml21_extract_legacy_watermark_set
Removed dml21_populate_pipe_ctx_dlg_param
Removed outdated dcn references in DML2.1 wrapper.

Reviewed-by: Austin Zheng &lt;austin.zheng@amd.com&gt;
Reviewed-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Rafal Ostrowski &lt;rostrows@amd.com&gt;
Signed-off-by: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: Extend dc_stream_get_crc to support 2nd crc engine</title>
<updated>2025-01-06T19:44:26+00:00</updated>
<author>
<name>Wayne Lin</name>
<email>Wayne.Lin@amd.com</email>
</author>
<published>2024-07-23T07:01:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=10008a962b2d46e9672a89359d5740fa5c8fc9d7'/>
<id>10008a962b2d46e9672a89359d5740fa5c8fc9d7</id>
<content type='text'>
[Why &amp; How]
Since now we can set multiple crc windows for secure display, add a new input
parameter for dc_stream_get_crc to indicate to fetch crc from which crc
engine.

Reviewed-by: HaoPing Liu &lt;haoping.liu@amd.com&gt;
Signed-off-by: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Signed-off-by: Roman Li &lt;roman.li@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[Why &amp; How]
Since now we can set multiple crc windows for secure display, add a new input
parameter for dc_stream_get_crc to indicate to fetch crc from which crc
engine.

Reviewed-by: HaoPing Liu &lt;haoping.liu@amd.com&gt;
Signed-off-by: Wayne Lin &lt;Wayne.Lin@amd.com&gt;
Signed-off-by: Roman Li &lt;roman.li@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: Add support for FAMS2+ interface versions</title>
<updated>2024-12-18T17:18:33+00:00</updated>
<author>
<name>Dillon Varone</name>
<email>dillon.varone@amd.com</email>
</author>
<published>2024-11-29T21:37:32+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=55eeaaec0d5716efef2229bb2b5f262ba934f9a5'/>
<id>55eeaaec0d5716efef2229bb2b5f262ba934f9a5</id>
<content type='text'>
Current driver interface does not allow for flexibility in coexistence
of multiple interface versions, so add support for checking minor
interface revisions and providing appropriate programming.

Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Reviewed-by: Alvin Lee &lt;alvin.lee2@amd.com&gt;
Signed-off-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Rodrigo Siqueira &lt;rodrigo.siqueira@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Current driver interface does not allow for flexibility in coexistence
of multiple interface versions, so add support for checking minor
interface revisions and providing appropriate programming.

Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Reviewed-by: Alvin Lee &lt;alvin.lee2@amd.com&gt;
Signed-off-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Rodrigo Siqueira &lt;rodrigo.siqueira@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: Add 3DLUT FL HW bug workaround</title>
<updated>2024-10-15T15:23:12+00:00</updated>
<author>
<name>Ilya Bakoulin</name>
<email>Ilya.Bakoulin@amd.com</email>
</author>
<published>2024-09-16T18:38:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=df60dcf5b58a642e531609d0d673bb63a11ed06e'/>
<id>df60dcf5b58a642e531609d0d673bb63a11ed06e</id>
<content type='text'>
[Why]
There is a known HW bug that causes the internal 3DLUT fetch signal to
be lost at VREADY, regardless of whether the OTG lock is being held or
not. A workaround is necessary to make sure that this internal signal
stays up after OTG unlock.

[How]
Set the 3DLUT_ENABLE bit immediately before and after the unlock. Also
use VUPDATE_KEEPOUT to prevent lock transition in the region between
VSTARTUP and VREADY, which could cause issues with this WA sequence.

Also including misc. 3DLUT DMA-related sequence fixes to address a few
regressions causing corruption.

Reviewed-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Ilya Bakoulin &lt;Ilya.Bakoulin@amd.com&gt;
Signed-off-by: Roman Li &lt;roman.li@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[Why]
There is a known HW bug that causes the internal 3DLUT fetch signal to
be lost at VREADY, regardless of whether the OTG lock is being held or
not. A workaround is necessary to make sure that this internal signal
stays up after OTG unlock.

[How]
Set the 3DLUT_ENABLE bit immediately before and after the unlock. Also
use VUPDATE_KEEPOUT to prevent lock transition in the region between
VSTARTUP and VREADY, which could cause issues with this WA sequence.

Also including misc. 3DLUT DMA-related sequence fixes to address a few
regressions causing corruption.

Reviewed-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Ilya Bakoulin &lt;Ilya.Bakoulin@amd.com&gt;
Signed-off-by: Roman Li &lt;roman.li@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: Wait for all pending cleared before full update</title>
<updated>2024-10-01T21:30:47+00:00</updated>
<author>
<name>Alvin Lee</name>
<email>Alvin.Lee2@amd.com</email>
</author>
<published>2024-09-09T20:24:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=faee3edfcff750fe5dd760177f52978aefefeb70'/>
<id>faee3edfcff750fe5dd760177f52978aefefeb70</id>
<content type='text'>
[Description]
Before every full update we must wait for all pending updates to be
cleared - this is particularly important for minimal transitions
because if we don't wait for pending cleared, it will be as if
there was no minimal transition at all. In OTG we must read 3 different
status registers for pending cleared, one specifically for OTG updates,
one specifically for OPTC updates, and the last for surface related
updates.

Reviewed-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Alvin Lee &lt;Alvin.Lee2@amd.com&gt;
Signed-off-by: Aurabindo Pillai &lt;aurabindo.pillai@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[Description]
Before every full update we must wait for all pending updates to be
cleared - this is particularly important for minimal transitions
because if we don't wait for pending cleared, it will be as if
there was no minimal transition at all. In OTG we must read 3 different
status registers for pending cleared, one specifically for OTG updates,
one specifically for OPTC updates, and the last for surface related
updates.

Reviewed-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Signed-off-by: Alvin Lee &lt;Alvin.Lee2@amd.com&gt;
Signed-off-by: Aurabindo Pillai &lt;aurabindo.pillai@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: restore immediate_disable_crtc for w/a</title>
<updated>2024-07-27T21:32:15+00:00</updated>
<author>
<name>Charlene Liu</name>
<email>Charlene.Liu@amd.com</email>
</author>
<published>2024-07-16T17:47:43+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9724b8494d3e85cb01c377f201bfaf25fd7d38ff'/>
<id>9724b8494d3e85cb01c377f201bfaf25fd7d38ff</id>
<content type='text'>
[why]
immediate_disable_crtc does not reset ODM.  if switching to disable_crtc
which will disable ODM as well.  i.e. need to restore ODM mem cfg at
reenable it at end of w/a.

Signed-off-by: Charlene Liu &lt;Charlene.Liu@amd.com&gt;
Reviewed-by: Xi (Alex) Liu &lt;xi.liu@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Rodrigo Siqueira &lt;rodrigo.siqueira@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[why]
immediate_disable_crtc does not reset ODM.  if switching to disable_crtc
which will disable ODM as well.  i.e. need to restore ODM mem cfg at
reenable it at end of w/a.

Signed-off-by: Charlene Liu &lt;Charlene.Liu@amd.com&gt;
Reviewed-by: Xi (Alex) Liu &lt;xi.liu@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Rodrigo Siqueira &lt;rodrigo.siqueira@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: Add 'pstate_keepout' kdoc entry in 'optc1_program_timing'</title>
<updated>2024-07-23T21:32:50+00:00</updated>
<author>
<name>Srinivasan Shanmugam</name>
<email>srinivasan.shanmugam@amd.com</email>
</author>
<published>2024-07-18T04:00:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=ca82ee4e9fc1443f9ceec615918b299766432eec'/>
<id>ca82ee4e9fc1443f9ceec615918b299766432eec</id>
<content type='text'>
Fixes the below with gcc W=1:
Function parameter or struct member 'pstate_keepout' not described in 'optc1_program_timing'

Cc: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Cc: Rodrigo Siqueira &lt;Rodrigo.Siqueira@amd.com&gt;
Cc: Roman Li &lt;roman.li@amd.com&gt;
Cc: Alex Hung &lt;alex.hung@amd.com&gt;
Cc: Aurabindo Pillai &lt;aurabindo.pillai@amd.com&gt;
Cc: Harry Wentland &lt;harry.wentland@amd.com&gt;
Cc: Hamza Mahfooz &lt;hamza.mahfooz@amd.com&gt;
Signed-off-by: Srinivasan Shanmugam &lt;srinivasan.shanmugam@amd.com&gt;
Reviewed-by: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Fixes the below with gcc W=1:
Function parameter or struct member 'pstate_keepout' not described in 'optc1_program_timing'

Cc: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Cc: Rodrigo Siqueira &lt;Rodrigo.Siqueira@amd.com&gt;
Cc: Roman Li &lt;roman.li@amd.com&gt;
Cc: Alex Hung &lt;alex.hung@amd.com&gt;
Cc: Aurabindo Pillai &lt;aurabindo.pillai@amd.com&gt;
Cc: Harry Wentland &lt;harry.wentland@amd.com&gt;
Cc: Hamza Mahfooz &lt;hamza.mahfooz@amd.com&gt;
Signed-off-by: Srinivasan Shanmugam &lt;srinivasan.shanmugam@amd.com&gt;
Reviewed-by: Tom Chung &lt;chiahsuan.chung@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: Add P-State Keepout to dcn401 Global Sync</title>
<updated>2024-07-23T21:07:12+00:00</updated>
<author>
<name>Dillon Varone</name>
<email>dillon.varone@amd.com</email>
</author>
<published>2024-07-03T16:55:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9932ca4c03c8181601f611dd366fceb765329800'/>
<id>9932ca4c03c8181601f611dd366fceb765329800</id>
<content type='text'>
[WHY&amp;HOW]
OTG has new functionality to allow P-State relative to VStartup. Keepout region
for this should be configured based on DML outputs same as other global sync
params.

Reviewed-by: Alvin Lee &lt;alvin.lee2@amd.com&gt;
Signed-off-by: Jerry Zuo &lt;jerry.zuo@amd.com&gt;
Signed-off-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[WHY&amp;HOW]
OTG has new functionality to allow P-State relative to VStartup. Keepout region
for this should be configured based on DML outputs same as other global sync
params.

Reviewed-by: Alvin Lee &lt;alvin.lee2@amd.com&gt;
Signed-off-by: Jerry Zuo &lt;jerry.zuo@amd.com&gt;
Signed-off-by: Dillon Varone &lt;dillon.varone@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>drm/amd/display: fix corruption with high refresh rates on DCN 3.0</title>
<updated>2024-07-17T21:41:28+00:00</updated>
<author>
<name>Alex Deucher</name>
<email>alexander.deucher@amd.com</email>
</author>
<published>2024-07-16T16:49:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=e3615bd198289f319172c428f20857accb46b830'/>
<id>e3615bd198289f319172c428f20857accb46b830</id>
<content type='text'>
This reverts commit bc87d666c05a13e6d4ae1ddce41fc43d2567b9a2 and the
register changes from commit 6d4279cb99ac4f51d10409501d29969f687ac8dc.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3412
Cc: mikhail.v.gavrilov@gmail.com
Cc: Rodrigo Siqueira &lt;Rodrigo.Siqueira@amd.com&gt;
Tested-by: Mikhail Gavrilov &lt;mikhail.v.gavrilov@gmail.com&gt;
Reviewed-by: Rodrigo Siqueira &lt;Rodrigo.Siqueira@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org # 6.10.x
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This reverts commit bc87d666c05a13e6d4ae1ddce41fc43d2567b9a2 and the
register changes from commit 6d4279cb99ac4f51d10409501d29969f687ac8dc.

Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3412
Cc: mikhail.v.gavrilov@gmail.com
Cc: Rodrigo Siqueira &lt;Rodrigo.Siqueira@amd.com&gt;
Tested-by: Mikhail Gavrilov &lt;mikhail.v.gavrilov@gmail.com&gt;
Reviewed-by: Rodrigo Siqueira &lt;Rodrigo.Siqueira@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
Cc: stable@vger.kernel.org # 6.10.x
</pre>
</div>
</content>
</entry>
</feed>
