From e17841b97587adfbe96f48c488fd0873ddfcaff0 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Tue, 8 Mar 2016 17:52:01 +0100 Subject: [PATCH] drm/amdgpu: Revert "add spin lock to protect freed list in vm (v3)" MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Not needed any more because we need to protect the elements on the list anyway. This reverts commit dae6ecf9e6c9b677e577826c3ac665c6dd9c490b. Signed-off-by: Christian König Reviewed-by: Chunming Zhou Acked-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 16 +++------------- 1 file changed, 3 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 330e307c36ed..7e73e54eadb9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -971,22 +971,18 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev, struct amdgpu_bo_va_mapping *mapping; int r; - spin_lock(&vm->freed_lock); while (!list_empty(&vm->freed)) { mapping = list_first_entry(&vm->freed, struct amdgpu_bo_va_mapping, list); list_del(&mapping->list); - spin_unlock(&vm->freed_lock); + r = amdgpu_vm_bo_split_mapping(adev, NULL, 0, vm, mapping, 0, NULL); kfree(mapping); if (r) return r; - spin_lock(&vm->freed_lock); } - spin_unlock(&vm->freed_lock); - return 0; } @@ -1252,13 +1248,10 @@ int amdgpu_vm_bo_unmap(struct amdgpu_device *adev, spin_unlock(&vm->it_lock); trace_amdgpu_vm_bo_unmap(bo_va, mapping); - if (valid) { - spin_lock(&vm->freed_lock); + if (valid) list_add(&mapping->list, &vm->freed); - spin_unlock(&vm->freed_lock); - } else { + else kfree(mapping); - } return 0; } @@ -1291,9 +1284,7 @@ void amdgpu_vm_bo_rmv(struct amdgpu_device *adev, interval_tree_remove(&mapping->it, &vm->va); spin_unlock(&vm->it_lock); trace_amdgpu_vm_bo_unmap(bo_va, mapping); - spin_lock(&vm->freed_lock); list_add(&mapping->list, &vm->freed); - spin_unlock(&vm->freed_lock); } list_for_each_entry_safe(mapping, next, &bo_va->invalids, list) { list_del(&mapping->list); @@ -1357,7 +1348,6 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm) INIT_LIST_HEAD(&vm->cleared); INIT_LIST_HEAD(&vm->freed); spin_lock_init(&vm->it_lock); - spin_lock_init(&vm->freed_lock); pd_size = amdgpu_vm_directory_size(adev); pd_entries = amdgpu_vm_num_pdes(adev); -- 2.20.1