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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 
     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 
     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