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455fa6518a
This update brings few features:
o Support for the setmaster/dropmaster ioctls. For instance, they
are used to run multiple X servers simultaneously.
o Support for minor devices. The only user-visible change is a new
entry in /dev/dri but it is useless at the moment. This is a
first step to support render nodes [1].
The main benefit is to greatly reduce the diff with Linux (at the
expense of an unreadable commit diff). Hopefully, next upgrades will be
easier.
No updates were made to the drivers, beside adapting them to API
changes.
[1] https://en.wikipedia.org/wiki/Direct_Rendering_Manager#Render_nodes
Tested by: Many people
MFC after: 1 month
Relnotes: yes
88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
/**
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* \file drm_sarea.h
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* \brief SAREA definitions
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*
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* \author Michel D<>zer <michel@daenzer.net>
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*/
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/*-
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* Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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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 (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* 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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* TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifndef _DRM_SAREA_H_
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#define _DRM_SAREA_H_
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#include <dev/drm2/drm.h>
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/* SAREA area needs to be at least a page */
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#if defined(__alpha__)
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#define SAREA_MAX 0x2000U
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#elif defined(__mips__)
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#define SAREA_MAX 0x4000U
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#else
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/* Intel 830M driver needs at least 8k SAREA */
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#define SAREA_MAX 0x2000U
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#endif
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/** Maximum number of drawables in the SAREA */
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#define SAREA_MAX_DRAWABLES 256
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#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000
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/** SAREA drawable */
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struct drm_sarea_drawable {
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unsigned int stamp;
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unsigned int flags;
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};
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/** SAREA frame */
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struct drm_sarea_frame {
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unsigned int x;
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unsigned int y;
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unsigned int width;
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unsigned int height;
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unsigned int fullscreen;
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};
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/** SAREA */
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struct drm_sarea {
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/** first thing is always the DRM locking structure */
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struct drm_hw_lock lock;
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/** \todo Use readers/writer lock for drm_sarea::drawable_lock */
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struct drm_hw_lock drawable_lock;
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struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES]; /**< drawables */
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struct drm_sarea_frame frame; /**< frame */
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drm_context_t dummy_context;
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};
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#ifndef __KERNEL__
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typedef struct drm_sarea_drawable drm_sarea_drawable_t;
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typedef struct drm_sarea_frame drm_sarea_frame_t;
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typedef struct drm_sarea drm_sarea_t;
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#endif
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#endif /* _DRM_SAREA_H_ */
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