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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 _I915_PVINFO_H_ | |
25 | #define _I915_PVINFO_H_ | |
26 | ||
27 | /* The MMIO offset of the shared info between guest and host emulator */ | |
28 | #define VGT_PVINFO_PAGE 0x78000 | |
29 | #define VGT_PVINFO_SIZE 0x1000 | |
30 | ||
31 | /* | |
32 | * The following structure pages are defined in GEN MMIO space | |
33 | * for virtualization. (One page for now) | |
34 | */ | |
35 | #define VGT_MAGIC 0x4776544776544776ULL /* 'vGTvGTvG' */ | |
36 | #define VGT_VERSION_MAJOR 1 | |
37 | #define VGT_VERSION_MINOR 0 | |
38 | ||
87da603c ZW |
39 | /* |
40 | * notifications from guest to vgpu device model | |
41 | */ | |
42 | enum vgt_g2v_type { | |
43 | VGT_G2V_PPGTT_L3_PAGE_TABLE_CREATE = 2, | |
44 | VGT_G2V_PPGTT_L3_PAGE_TABLE_DESTROY, | |
45 | VGT_G2V_PPGTT_L4_PAGE_TABLE_CREATE, | |
46 | VGT_G2V_PPGTT_L4_PAGE_TABLE_DESTROY, | |
47 | VGT_G2V_EXECLIST_CONTEXT_CREATE, | |
48 | VGT_G2V_EXECLIST_CONTEXT_DESTROY, | |
49 | VGT_G2V_MAX, | |
50 | }; | |
51 | ||
52 | struct vgt_if { | |
53 | u64 magic; /* VGT_MAGIC */ | |
c380f681 ZW |
54 | u16 version_major; |
55 | u16 version_minor; | |
87da603c ZW |
56 | u32 vgt_id; /* ID of vGT instance */ |
57 | u32 rsv1[12]; /* pad to offset 0x40 */ | |
58 | /* | |
59 | * Data structure to describe the balooning info of resources. | |
60 | * Each VM can only have one portion of continuous area for now. | |
61 | * (May support scattered resource in future) | |
62 | * (starting from offset 0x40) | |
63 | */ | |
64 | struct { | |
65 | /* Aperture register balooning */ | |
66 | struct { | |
67 | u32 base; | |
68 | u32 size; | |
69 | } mappable_gmadr; /* aperture */ | |
70 | /* GMADR register balooning */ | |
71 | struct { | |
72 | u32 base; | |
73 | u32 size; | |
74 | } nonmappable_gmadr; /* non aperture */ | |
75 | /* allowed fence registers */ | |
76 | u32 fence_num; | |
77 | u32 rsv2[3]; | |
78 | } avail_rs; /* available/assigned resource */ | |
79 | u32 rsv3[0x200 - 24]; /* pad to half page */ | |
80 | /* | |
81 | * The bottom half page is for response from Gfx driver to hypervisor. | |
82 | */ | |
83 | u32 rsv4; | |
84 | u32 display_ready; /* ready for display owner switch */ | |
85 | ||
86 | u32 rsv5[4]; | |
87 | ||
88 | u32 g2v_notify; | |
89 | u32 rsv6[7]; | |
90 | ||
91 | struct { | |
92 | u32 lo; | |
93 | u32 hi; | |
94 | } pdp[4]; | |
95 | ||
96 | u32 execlist_context_descriptor_lo; | |
97 | u32 execlist_context_descriptor_hi; | |
98 | ||
99 | u32 rsv7[0x200 - 24]; /* pad to one page */ | |
100 | } __packed; | |
101 | ||
102 | #define vgtif_reg(x) \ | |
b2a5d1e7 | 103 | _MMIO((VGT_PVINFO_PAGE + offsetof(struct vgt_if, x))) |
87da603c ZW |
104 | |
105 | /* vGPU display status to be used by the host side */ | |
106 | #define VGT_DRV_DISPLAY_NOT_READY 0 | |
107 | #define VGT_DRV_DISPLAY_READY 1 /* ready for display switch */ | |
108 | ||
109 | #endif /* _I915_PVINFO_H_ */ |