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1 /*
2  * Copyright 2017 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  */
23 
24 #include "amdgpu.h"
25 #include "amdgpu_drm.h"
26 #include "xf86drm.h"
27 #include "amdgpu_internal.h"
28 
amdgpu_vm_reserve_vmid(amdgpu_device_handle dev,uint32_t flags)29 int amdgpu_vm_reserve_vmid(amdgpu_device_handle dev, uint32_t flags)
30 {
31 	union drm_amdgpu_vm vm;
32 
33 	vm.in.op = AMDGPU_VM_OP_RESERVE_VMID;
34 	vm.in.flags = flags;
35 
36 	return drmCommandWriteRead(dev->fd, DRM_AMDGPU_VM,
37 				   &vm, sizeof(vm));
38 }
39 
amdgpu_vm_unreserve_vmid(amdgpu_device_handle dev,uint32_t flags)40 int amdgpu_vm_unreserve_vmid(amdgpu_device_handle dev, uint32_t flags)
41 {
42 	union drm_amdgpu_vm vm;
43 
44 	vm.in.op = AMDGPU_VM_OP_UNRESERVE_VMID;
45 	vm.in.flags = flags;
46 
47 	return drmCommandWriteRead(dev->fd, DRM_AMDGPU_VM,
48 				   &vm, sizeof(vm));
49 }
50