diff options
| author | Lang Yu <lang.yu@amd.com> | 2024-09-27 13:27:46 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-10-07 21:03:52 +0300 |
| commit | 5fa436289483ae56427b0896c31f72361223c758 (patch) | |
| tree | 54bfa38b88b8f8d3ca680b0c65da5b242c4847a1 | |
| parent | ef532206a94357de1fbd259364265e7e0758d8af (diff) | |
| download | linux-5fa436289483ae56427b0896c31f72361223c758.tar.xz | |
drm/amdkfd: Fix an eviction fence leak
Only creating a new reference for each process instead of each VM.
Fixes: 9a1c1339abf9 ("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>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_process.c | 7 |
2 files changed, 7 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index ce5ca304dba9..fa572ba7f9fc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -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; diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index d07acf1b2f93..d665ecdcd12f 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -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); |