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drm/amdgpu: track the userq bo va for its obj management

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Track the userq obj for its life time, and reference and
dereference the buffer flag at its creating and destroying
period.

Suggested-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Prike Liang
2025-10-09 16:44:31 +08:00
committed by Alex Deucher
parent 5cfa33fabf
commit 2a28f9665d
1 changed files with 36 additions and 0 deletions
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36
drivers/gpu/drm/amd/amdgpu/amdgpu_userq.c
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@@ -97,6 +97,40 @@ out_err:
return r;
}
static void amdgpu_userq_buffer_va_list_del(struct amdgpu_bo_va_mapping *mapping,
struct amdgpu_userq_va_cursor *va_cursor)
{
atomic_set(&mapping->bo_va->userq_va_mapped, 0);
list_del(&va_cursor->list);
kfree(va_cursor);
}
static int amdgpu_userq_buffer_vas_list_cleanup(struct amdgpu_device *adev,
struct amdgpu_usermode_queue *queue)
{
struct amdgpu_userq_va_cursor *va_cursor, *tmp;
struct amdgpu_bo_va_mapping *mapping;
int r;
r = amdgpu_bo_reserve(queue->vm->root.bo, false);
if (r)
return r;
list_for_each_entry_safe(va_cursor, tmp, &queue->userq_va_list, list) {
mapping = amdgpu_vm_bo_lookup_mapping(queue->vm, va_cursor->gpu_addr);
if (!mapping) {
r = -EINVAL;
goto err;
}
amdgpu_userq_buffer_va_list_del(mapping, va_cursor);
dev_dbg(adev->dev, "delete the userq:%p va:%llx\n",
queue, va_cursor->gpu_addr);
}
err:
amdgpu_bo_unreserve(queue->vm->root.bo);
return r;
}
static int
amdgpu_userq_preempt_helper(struct amdgpu_userq_mgr *uq_mgr,
struct amdgpu_usermode_queue *queue)
@@ -202,6 +236,8 @@ amdgpu_userq_cleanup(struct amdgpu_userq_mgr *uq_mgr,
struct amdgpu_device *adev = uq_mgr->adev;
const struct amdgpu_userq_funcs *uq_funcs = adev->userq_funcs[queue->queue_type];
/* Drop the userq reference. */
amdgpu_userq_buffer_vas_list_cleanup(adev, queue);
uq_funcs->mqd_destroy(uq_mgr, queue);
amdgpu_userq_fence_driver_free(queue);
idr_remove(&uq_mgr->userq_idr, queue_id);