drm/amdgpu: fix userq VM validation v4

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That was actually complete nonsense and not validating the BOs
at all. The code just cleared all VM areas were it couldn't grab the
lock for a BO.

Try to fix this. Only compile tested at the moment.

v2: fix fence slot reservation as well as pointed out by Sunil.
    also validate PDs, PTs, per VM BOs and update PDEs
v3: grab the status_lock while working with the done list.
v4: rename functions, add some comments, fix waiting for updates to
    complete.
v4: rename amdgpu_vm_lock_done_list(), add some more comments

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Christian König 2025-08-27 09:28:40 +02:00 • committed by Alex Deucher

parent d7ddcf921e

commit 39203f5e6d

3 changed files with 110 additions and 75 deletions

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158

drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c

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35

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

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2

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h

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