dd55d44f40
This commit adds the vboxvideo drm/kms driver for the virtual graphics card used in Virtual Box virtual machines to drivers/staging. Why drivers/staging? This driver is already being patched into the kernel by several distros, thus it is good to get this driver upstream soon, so that work on the driver can be easily shared. At the same time we want to take our time to get this driver properly cleaned up (mainly converted to the new atomic modesetting APIs) before submitting it as a normal driver under drivers/gpu/drm, putting this driver in staging for now allows both. Note this driver has already been significantly cleaned up, when I started working on this the files under /usr/src/vboxguest/vboxvideo as installed by Virtual Box 5.1.18 Guest Additions had a total linecount of 52681 lines. The version in this commit has 4874 lines. Cc: vbox-dev@virtualbox.org Cc: Michael Thayer <michael.thayer@oracle.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Michael Thayer <michael.thayer@oracle.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
67 lines
2.6 KiB
C
67 lines
2.6 KiB
C
/*
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* Copyright (C) 2006-2017 Oracle Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef __HGSMI_CH_SETUP_H__
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#define __HGSMI_CH_SETUP_H__
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/*
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* Tell the host the location of hgsmi_host_flags structure, where the host
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* can write information about pending buffers, etc, and which can be quickly
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* polled by the guest without a need to port IO.
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*/
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#define HGSMI_CC_HOST_FLAGS_LOCATION 0
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struct hgsmi_buffer_location {
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u32 buf_location;
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u32 buf_len;
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} __packed;
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/* HGSMI setup and configuration data structures. */
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/* host->guest commands pending, should be accessed under FIFO lock only */
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#define HGSMIHOSTFLAGS_COMMANDS_PENDING 0x01u
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/* IRQ is fired, should be accessed under VGAState::lock only */
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#define HGSMIHOSTFLAGS_IRQ 0x02u
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/* vsync interrupt flag, should be accessed under VGAState::lock only */
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#define HGSMIHOSTFLAGS_VSYNC 0x10u
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/** monitor hotplug flag, should be accessed under VGAState::lock only */
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#define HGSMIHOSTFLAGS_HOTPLUG 0x20u
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/**
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* Cursor capability state change flag, should be accessed under
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* VGAState::lock only. @see vbva_conf32.
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*/
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#define HGSMIHOSTFLAGS_CURSOR_CAPABILITIES 0x40u
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struct hgsmi_host_flags {
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/*
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* Host flags can be accessed and modified in multiple threads
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* concurrently, e.g. CrOpenGL HGCM and GUI threads when completing
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* HGSMI 3D and Video Accel respectively, EMT thread when dealing with
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* HGSMI command processing, etc.
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* Besides settings/cleaning flags atomically, some flags have their
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* own special sync restrictions, see comments for flags above.
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*/
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u32 host_flags;
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u32 reserved[3];
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} __packed;
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#endif
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