| 1 | /* SPDX-License-Identifier: MIT */ |
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| 2 | /* Copyright (C) 2006-2017 Oracle Corporation */ |
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| 3 | |
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| 4 | #ifndef __HGSMI_CH_SETUP_H__ |
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| 5 | #define __HGSMI_CH_SETUP_H__ |
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| 6 | |
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| 7 | /* |
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| 8 | * Tell the host the location of hgsmi_host_flags structure, where the host |
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| 9 | * can write information about pending buffers, etc, and which can be quickly |
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| 10 | * polled by the guest without a need to port IO. |
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| 11 | */ |
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| 12 | #define HGSMI_CC_HOST_FLAGS_LOCATION 0 |
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| 13 | |
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| 14 | struct hgsmi_buffer_location { |
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| 15 | u32 buf_location; |
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| 16 | u32 buf_len; |
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| 17 | } __packed; |
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| 18 | |
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| 19 | /* HGSMI setup and configuration data structures. */ |
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| 20 | |
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| 21 | #define HGSMIHOSTFLAGS_COMMANDS_PENDING 0x01u |
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| 22 | #define HGSMIHOSTFLAGS_IRQ 0x02u |
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| 23 | #define HGSMIHOSTFLAGS_VSYNC 0x10u |
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| 24 | #define HGSMIHOSTFLAGS_HOTPLUG 0x20u |
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| 25 | #define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES 0x40u |
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| 26 | |
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| 27 | struct hgsmi_host_flags { |
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| 28 | u32 host_flags; |
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| 29 | u32 reserved[3]; |
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| 30 | } __packed; |
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| 31 | |
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| 32 | #endif |
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| 33 | |
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