diff options
| author | Bernard Zhao <bernard@vivo.com> | 2020-04-20 23:48:18 -0700 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-23 15:39:53 -0400 |
| commit | fe158997c8b73ca5117e07ecfa94ec7d9acf7eb4 (patch) | |
| tree | f928d86ebbb2e98849b896cfd6f3e5bafcf3895c /drivers/gpu/drm | |
| parent | 6f81b2d047c59eb77cd04795a44245d6a52cdaec (diff) | |
drm/amdgpu: shrink critical section in amdgpu_amdkfd_gpuvm_free_memory_of_gpu
Reduce the mem->lock`s protected code area, no need to protect pr_debug.
This also simplifies error handling.
Signed-off-by: Bernard Zhao <bernard@vivo.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c index d62f4ad5c43f..0768b7eb7683 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c @@ -1284,22 +1284,22 @@ int amdgpu_amdkfd_gpuvm_free_memory_of_gpu( struct kfd_bo_va_list *entry, *tmp; struct bo_vm_reservation_context ctx; struct ttm_validate_buffer *bo_list_entry; + unsigned int mapped_to_gpu_memory; int ret; mutex_lock(&mem->lock); + mapped_to_gpu_memory = mem->mapped_to_gpu_memory; + mutex_unlock(&mem->lock); + /* lock is not needed after this, since mem is unused and will + * be freed anyway + */ - if (mem->mapped_to_gpu_memory > 0) { + if (mapped_to_gpu_memory > 0) { pr_debug("BO VA 0x%llx size 0x%lx is still mapped.\n", mem->va, bo_size); - mutex_unlock(&mem->lock); return -EBUSY; } - mutex_unlock(&mem->lock); - /* lock is not needed after this, since mem is unused and will - * be freed anyway - */ - /* No more MMU notifiers */ amdgpu_mn_unregister(mem->bo); |