xref: /dragonfly/sys/dev/drm/i915/gvt/gvt.h (revision 335b9e93)
1 /*
2  * Copyright(c) 2011-2016 Intel Corporation. All rights reserved.
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 (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  */
23 
24 #ifndef _GVT_H_
25 #define _GVT_H_
26 
27 #include "debug.h"
28 #include "hypercall.h"
29 
30 #define GVT_MAX_VGPU 8
31 
32 static inline struct intel_gvt *to_gvt(struct drm_i915_private *i915)
33 {
34 	return i915->gvt;
35 }
36 
37 enum {
38 	INTEL_GVT_HYPERVISOR_XEN = 0,
39 	INTEL_GVT_HYPERVISOR_KVM,
40 };
41 
42 struct intel_gvt_host {
43 	bool initialized;
44 	int hypervisor_type;
45 	struct intel_gvt_mpt *mpt;
46 };
47 
48 extern struct intel_gvt_host intel_gvt_host;
49 
50 /* Describe per-platform limitations. */
51 struct intel_gvt_device_info {
52 	u32 max_support_vgpus;
53 	/* This data structure will grow bigger in GVT device model patches */
54 };
55 
56 struct intel_vgpu {
57 	struct intel_gvt *gvt;
58 	int id;
59 	unsigned long handle; /* vGPU handle used by hypervisor MPT modules */
60 };
61 
62 struct intel_gvt {
63 	struct lock lock;
64 	bool initialized;
65 
66 	struct drm_i915_private *dev_priv;
67 	struct idr vgpu_idr;	/* vGPU IDR pool */
68 
69 	struct intel_gvt_device_info device_info;
70 };
71 
72 #include "mpt.h"
73 
74 #endif
75