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1 | /* |
2 | * Copyright (C) 2006-2017 Oracle Corporation | |
3 | * | |
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4 | * Permission is hereby granted, free of charge, to any person |
5 | * obtaining a copy of this software and associated documentation | |
6 | * files (the "Software"), to deal in the Software without | |
7 | * restriction, including without limitation the rights to use, | |
8 | * copy, modify, merge, publish, distribute, sublicense, and/or sell | |
9 | * copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following | |
11 | * conditions: | |
6d209b23 | 12 | * |
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13 | * The above copyright notice and this permission notice shall be |
14 | * included in all copies or substantial portions of the Software. | |
6d209b23 | 15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
17 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES | |
18 | * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
19 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT | |
20 | * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
21 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | |
22 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
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23 | * OTHER DEALINGS IN THE SOFTWARE. |
24 | */ | |
25 | ||
26 | #ifndef __HGSMI_CH_SETUP_H__ | |
27 | #define __HGSMI_CH_SETUP_H__ | |
28 | ||
29 | #include "hgsmi_defs.h" | |
30 | ||
31 | /* HGSMI setup and configuration channel commands and data structures. */ | |
32 | /* | |
33 | * Tell the host the location of hgsmi_host_flags structure, where the host | |
34 | * can write information about pending buffers, etc, and which can be quickly | |
35 | * polled by the guest without a need to port IO. | |
36 | */ | |
37 | #define HGSMI_CC_HOST_FLAGS_LOCATION 0 | |
38 | ||
39 | struct hgsmi_buffer_location { | |
40 | u32 location; | |
41 | u32 buf_len; | |
42 | }; | |
43 | assert_compile_size(struct hgsmi_buffer_location, 8); | |
44 | ||
45 | /* HGSMI setup and configuration data structures. */ | |
46 | /* host->guest commands pending, should be accessed under FIFO lock only */ | |
47 | #define HGSMIHOSTFLAGS_COMMANDS_PENDING 0x01u | |
48 | /* IRQ is fired, should be accessed under VGAState::lock only */ | |
49 | #define HGSMIHOSTFLAGS_IRQ 0x02u | |
50 | #ifdef VBOX_WITH_WDDM | |
51 | /* one or more guest commands is completed, should be accessed under FIFO lock only */ | |
52 | # define HGSMIHOSTFLAGS_GCOMMAND_COMPLETED 0x04u | |
53 | /* watchdog timer interrupt flag (used for debugging), should be accessed under VGAState::lock only */ | |
54 | # define HGSMIHOSTFLAGS_WATCHDOG 0x08u | |
55 | #endif | |
56 | /* vsync interrupt flag, should be accessed under VGAState::lock only */ | |
57 | #define HGSMIHOSTFLAGS_VSYNC 0x10u | |
58 | /** monitor hotplug flag, should be accessed under VGAState::lock only */ | |
59 | #define HGSMIHOSTFLAGS_HOTPLUG 0x20u | |
60 | /** | |
61 | * Cursor capability state change flag, should be accessed under | |
62 | * VGAState::lock only. @see struct vbva_conf32. | |
63 | */ | |
64 | #define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES 0x40u | |
65 | ||
66 | struct hgsmi_host_flags { | |
67 | /* | |
68 | * Host flags can be accessed and modified in multiple threads | |
69 | * concurrently, e.g. CrOpenGL HGCM and GUI threads when completing | |
70 | * HGSMI 3D and Video Accel respectively, EMT thread when dealing with | |
71 | * HGSMI command processing, etc. | |
72 | * Besides settings/cleaning flags atomically, some flags have their | |
73 | * own special sync restrictions, see comments for flags above. | |
74 | */ | |
75 | volatile u32 host_flags; | |
76 | u32 reserved[3]; | |
77 | }; | |
78 | assert_compile_size(struct hgsmi_host_flags, 16); | |
79 | ||
80 | #endif |