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drm/amdkfd: Fix an eviction fence leak

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Only creating a new reference for each process instead of each VM.

Fixes: 9a1c1339ab ("drm/amdkfd: Run restore_workers on freezable WQs")
Suggested-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Lang Yu <lang.yu@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 5fa4362894)
Cc: stable@vger.kernel.org
This commit is contained in:
Lang Yu
2024-09-27 18:27:46 +08:00
committed by Alex Deucher
parent 5b272bf7dc
commit d7d7b947a4
2 changed files with 7 additions and 4 deletions
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drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
+2 -2
View File
@@ -1439,8 +1439,8 @@ static int init_kfd_vm(struct amdgpu_vm *vm, void **process_info,
list_add_tail(&vm->vm_list_node,
&(vm->process_info->vm_list_head));
vm->process_info->n_vms++;
*ef = dma_fence_get(&vm->process_info->eviction_fence->base);
if (ef)
*ef = dma_fence_get(&vm->process_info->eviction_fence->base);
mutex_unlock(&vm->process_info->lock);
return 0;
drivers/gpu/drm/amd/amdkfd/kfd_process.c
+5 -2
View File
@@ -1702,12 +1702,15 @@ int kfd_process_device_init_vm(struct kfd_process_device *pdd,
ret = amdgpu_amdkfd_gpuvm_acquire_process_vm(dev->adev, avm,
&p->kgd_process_info,
&ef);
p->ef ? NULL : &ef);
if (ret) {
dev_err(dev->adev->dev, "Failed to create process VM object\n");
return ret;
}
RCU_INIT_POINTER(p->ef, ef);
if (!p->ef)
RCU_INIT_POINTER(p->ef, ef);
pdd->drm_priv = drm_file->private_data;
ret = kfd_process_device_reserve_ib_mem(pdd);