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- * For the very latest on DRI development, please see: *
- * http://dri.freedesktop.org/ *
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- The Direct Rendering Manager (drm) is a device-independent kernel-level
- device driver that provides support for the XFree86 Direct Rendering
- Infrastructure (DRI).
- The DRM supports the Direct Rendering Infrastructure (DRI) in four major
- ways:
- 1. The DRM provides synchronized access to the graphics hardware via
- the use of an optimized two-tiered lock.
- 2. The DRM enforces the DRI security policy for access to the graphics
- hardware by only allowing authenticated X11 clients access to
- restricted regions of memory.
- 3. The DRM provides a generic DMA engine, complete with multiple
- queues and the ability to detect the need for an OpenGL context
- switch.
- 4. The DRM is extensible via the use of small device-specific modules
- that rely extensively on the API exported by the DRM module.
- Documentation on the DRI is available from:
- http://dri.freedesktop.org/wiki/Documentation
- http://sourceforge.net/project/showfiles.php?group_id=387
- http://dri.sourceforge.net/doc/
- For specific information about kernel-level support, see:
- The Direct Rendering Manager, Kernel Support for the Direct Rendering
- Infrastructure
- http://dri.sourceforge.net/doc/drm_low_level.html
- Hardware Locking for the Direct Rendering Infrastructure
- http://dri.sourceforge.net/doc/hardware_locking_low_level.html
- A Security Analysis of the Direct Rendering Infrastructure
- http://dri.sourceforge.net/doc/security_low_level.html
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