[OEM5.14/J][SRU][PATCH v2 0/7]

[Mario Limonciello]

BugLink: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1983143

When a Thunderbolt monitor or Thunderbolt dock are connected to a USB4
port on AMD Yellow Carp (Rembrandt) a software connection manager works
with the hardware to initialize tunnels.

One of those tunnels is for DP (display port). It was observed that
on both the OEM-5.14 as well as Jammy-5.15 kernel that DP tunneling
specifically when connecting to a Thunderbolt monitor fails.
This circumstance does not happen on OEM-5.17 or mainline kernels.

This is due to a backport error on the USB4 patch series that went
into OEM-5.14 and moved forward to Jammy-5.15.  Patch 1/7 in this
series corrects that error as minimally as possible as a SAUCE patch.

It was also observed that DP tunneling is not working for Thunderbolt
monitor connected at boot, but this is a different root cause.
The "Pre-OS" connection manager creates DP tunnels that are expected
to be re-used by the OS connection manager. The remaining patches in
this series enable this flow.

Patches 2-6 are upstream patches or reverts to closer match upstream.
Patch 7 is a SAUCE patch because it is not landed upstream yet, but
will be needed for patch 2-6 to work properly.  If the Thunderbolt
CM doesn't hand off resources, amdgpu can't possibly re-use them.

For this whole flow to work an updated AMDGPU DMCUB firmware is also
needed.  This is already in process as part of:
https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1981922

v1->v2:
* Fixup [1/4], it didn't work due to a contextual error
* Add a revert of a stable patch before previous patch [3/4] applied
  so that it can re-apply cleanly.
* Add missing dependencies for patch [3/4] to allow applying cleanly
* Re-apply revert commit

Mario Limonciello (2):
  UBUNTU: SAUCE: drm/amd: Fix DP Tunneling with Thunderbolt monitors
  Revert "drm/amd/display: Fix DPIA outbox timeout after S3/S4/reset"

Meenakshikumar Somasundaram (1):
  drm/amd/display: Fix for dmub outbox notification enable

Nicholas Kazlauskas (2):
  drm/amd/display: Reset link encoder assignments for GPU reset
  drm/amd/display: Fix DPIA outbox timeout after S3/S4/reset

Sanjay R Mehta (1):
  UBUNTU: SAUCE: thunderbolt: Add DP out resource when DP tunnel is
    discovered.

Stylon Wang (1):
  drm/amd/display: Fix new dmub notification enabling in DM

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 39 +++++++++--
 drivers/gpu/drm/amd/display/dc/core/dc.c      | 66 +++++++++++++++++--
 drivers/gpu/drm/amd/display/dc/dc.h           |  3 +
 .../gpu/drm/amd/display/dc/dce/dmub_outbox.c  | 25 +++----
 .../gpu/drm/amd/display/dc/dce/dmub_outbox.h  |  4 +-
 .../amd/display/dc/dcn10/dcn10_hw_sequencer.c |  4 --
 .../drm/amd/display/dc/dcn20/dcn20_hwseq.c    |  5 +-
 .../drm/amd/display/dc/dcn31/dcn31_hwseq.c    |  2 +-
 drivers/thunderbolt/tb.c                      | 15 +++++
 drivers/thunderbolt/tb.h                      |  1 +
 drivers/thunderbolt/tunnel.c                  |  2 +
 11 files changed, 133 insertions(+), 33 deletions(-)

-- 
2.34.1