On 6/30/26 13:02, [email protected] wrote:
From: Leo Li <[email protected]>
v1 here:
https://lore.kernel.org/amd-gfx/[email protected]/
v2 here:
https://lore.kernel.org/amd-gfx/[email protected]/
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.
Having been one of those being able to readily reproduce issues at the
hackfest with PSR I'm happy to report that I tested a backport of this
series on a clean 7.2-rc1 where I don't observe any issues. Due to
changes in the codebase it's not purely the same as your content headed
to drm-next.
The branch of what I tested is here though if anyone else would like to
test on 7.2 as well.
https://git.kernel.org/pub/scm/linux/kernel/git/superm1/linux.git/log/?h=lileo/flip_done_timeout_corruption_fixes-7.2
So my tag isn't purely this series, but I guess at least close enough
with the backport if you want to carry it forward.
Tested-by: Mario Limonciello (AMD) <[email protected]>
Also as I reviewed the series nothing stands out to me, you obviously
know this part of the code base better than anyone though.
Reviewed-by: Mario Limonciello (AMD) <[email protected]>
Since I had a hard time applying this even to 7.2, I suspect after we
land this we'll need to do some custom/manual backports for each of the
applicable stable series at the time it actually lands in mainline.
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
