[Devel] [PATCH hci-8.1 0/1] drm/amdgpu: fix init ordering in amdgpu_vram_mgr_init()

[Mirian Shilakadze <mirian.shilakadze@virtuozzo.com>]

Backport of the upstream stable fix e773798e14ac ("drm/amdgpu: Fix
init ordering in amdgpu_vram_mgr_init()"). It registers the dmem
region after the VRAM manager lists and buddy allocator are set up, so
a failed registration leaves a manager that can be torn down safely.
It is a clean cherry-pick, the changed lines are the same as upstream,
and it only moves the registration down, nothing else changes.

Not run: we have no node with an AMD GPU. Build-tested only,
amdgpu_vram_mgr.o compiles with the 211.52.1.22.19 config.

As far as I can tell from reading the code, the crash described
upstream cannot be triggered in our kernel. amdgpu_ttm_fini() is only
reached from the GMC block sw_fini, and amdgpu_device_ip_fini() skips
a block whose sw_init failed, so a failed registration just fails
the probe.

https://virtuozzo.atlassian.net/browse/VSTOR-153702

Thomas Hellström (1):
  ms/drm/amdgpu: Fix init ordering in amdgpu_vram_mgr_init()

 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

-- 
2.43.0

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