drm/amdgpu: stop GPU recovery wait for the JPEG/VCN idle work

The common JPEG and VCN idle workers program power gating and DPG pause,
so they must not run while a GPU reset is in progress. Recovery must not
wait for them either, since everything the workers depend on then
becomes a dependency of GPU recovery.

Make the workers take reset_domain->sem for read, so they wait for a
running reset instead of touching the hardware. hw_fini/suspend, the
hw_init error paths and begin_use, the latter for the IB tests, run from
GPU recovery as well, so only skip waiting for the idle work when the
reset itself calls them. The reset holds the semaphore for write and
would otherwise deadlock on a worker blocked on it. Outside a reset the
cancel stays synchronous as before.

A device can also be torn down while a peer in its XGMI reset domain is
being reset. hw_fini then doesn't wait for the worker either, and is
skipped entirely if the peer's reset has already suspended the device.
Cancel the idle work synchronously in early_fini, which only runs on
teardown and before any hw_fini, so the worker is done before the
hardware it touches is torn down.

Teardown has drained the rings before early_fini, so nothing queues the
work again and hw_fini only cancels it outside teardown, for suspend and
GPU reset. The JPEG suspend and sw_fini callbacks no longer cancel it a
second time; replace amdgpu_jpeg_suspend(), which only did that, with
amdgpu_jpeg_cancel_idle_work() as on the VCN side.

Update versions:
v1: https://lists.freedesktop.org/archives/amd-gfx/2026-October/155441.html
v2: https://lists.freedesktop.org/archives/amd-gfx/2026-October/156119.html
v3: https://lists.freedesktop.org/archives/amd-gfx/2026-November/156456.html

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Cc: Leo Liu <leo.liu@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 945ef007af8cb720ee58bc5a19def034a7c8dd15)

0 files changed, 0 insertions, 0 deletions