drm/amd/ras: skip the RAS firmware reload when the block is down

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A reset on init lowers the init level to the minimal XGMI set, which
leaves out the RAS IP block, so its hw_init never runs and the PSP
buffers stay unallocated. The resume that follows the reset tries to
reload the RAS firmware into those buffers, fails with -ENOMEM and
aborts the whole resume, taking every device of the hive down with it.

There is nothing to reload in that case. Leave the block alone and let
amdgpu_ras_resume_after_reset() bring it up, which is where it has to
happen anyway: the RAS hardware init reads the EEPROM and so takes the
reset domain lock for read, while the reset on init path still holds it
for write, so doing it here deadlocks.

Signed-off-by: Xiang Liu <xiang.liu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Xiang Liu 2026-08-21 17:32:45 +08:00 • committed by Alex Deucher

parent 9ebd70b746

commit b62da90db8

1 changed files with 7 additions and 0 deletions

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drivers/gpu/drm/amd/ras/ras_mgr/amdgpu_ras_mgr.c

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