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authorPhilip Yang <[email protected]>2022-09-16 13:30:43 +0000
committerAlex Deucher <[email protected]>2022-09-21 19:25:46 +0000
commitc2dbd69e7b3a02b39ebac262c8c6c7f53df584c7 (patch)
tree38216ece4986dfcaaddf730c2a7a2568a85d2405 /drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
parentdrm/amdgpu: Use vm status_lock to protect vm evicted list (diff)
downloadkernel-c2dbd69e7b3a02b39ebac262c8c6c7f53df584c7.tar.gz
kernel-c2dbd69e7b3a02b39ebac262c8c6c7f53df584c7.zip
drm/amdgpu: Use vm status_lock to protect pt free
Use vm_status_lock to protect all vm_status state transitions to allow them to happen without a reservation lock in unlocked page table updates. Signed-off-by: Philip Yang <[email protected]> Acked-by: Felix Kuehling <[email protected]> Reviewed-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
index 88de9f0d4728..61a4b7182d44 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
@@ -637,7 +637,10 @@ static void amdgpu_vm_pt_free(struct amdgpu_vm_bo_base *entry)
}
ttm_bo_set_bulk_move(&entry->bo->tbo, NULL);
entry->bo->vm_bo = NULL;
+
+ spin_lock(&entry->vm->status_lock);
list_del(&entry->vm_status);
+ spin_unlock(&entry->vm->status_lock);
amdgpu_bo_unref(&entry->bo);
}