[PATCH v3 0/3] Fixes for flip_done timed outs and PSR/Replay corruption

[<sunpeng.li@amd.com>]

From: Leo Li <sunpeng.li@amd.com>

v1 here:
https://lore.kernel.org/amd-gfx/20260616201828.389985-1-sunpeng.li@amd.com/
v2 here:
https://lore.kernel.org/amd-gfx/20260622171752.73374-1-sunpeng.li@amd.com/

Summary of changes since v2:

* Fixed a regression in kms_vrr@flip-basic, which exposed a scenario in
  optimistic event delivery where wrong vblank timestamps were attached.
  See new docstrings in patch 2/3 for details.
* Readability cleanups in patch 2/3, thanks Michel!

v7.0.y based branch here (drops the revert and resolves merge conflicts
due to recent refactor of IRQ handlers from amdgpu_dm.c into
amdgpu_dm_irq.c):
https://gitlab.freedesktop.org/leoli/linux-asdn/-/commits/lileo/flip_done_timeout_corruption_fixes?ref_type=heads

A Note on LLM use:

Claude helped with code plumbing and IGT testing. The effort of
reporting, debugging, spinning up fixes, and testing them, were from
humans. Kudos to individuals who collaborated on the amd-gfx mailing
list, gitlab, 2026 Display Hackfest, and AMD internal chats, to finally
nail down a fix.


Leo Li (3):
  drm/amd/display: consolidate DCN vblank/flip handling onto
    vupdate_no_lock
  drm/amd/display: check GRPH_FLIP status before sending event
  Revert "drm/amd/display: Restore 5s vbl offdelay for NV3x+ DGPUs"

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 234 +++++++++++---
 .../amd/display/amdgpu_dm/amdgpu_dm_crtc.c    |  70 ++--
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_irq.c | 299 +++++++++---------
 drivers/gpu/drm/amd/display/dc/core/dc.c      |  45 +++
 drivers/gpu/drm/amd/display/dc/dc.h           |   1 +
 5 files changed, 417 insertions(+), 232 deletions(-)

--
2.54.0