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* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (102 commits) drm/nouveau/ttm: fix crash as a result of a recent ttm change drm/nouveau: Fix notifier blocks over the 4GB mark. drm/nouveau: Fix pushbufs over the 4GB mark. drm/nvc0/pm: initial engine reclocking drm/nouveau: move hpd enable/disable to common code drm/nv40/disp: implement support for hotplug irq drm/nouveau/gpio: reimplement as nouveau_gpio.c, fixing a number of issues drm/nouveau: just pass gpio line to pwm_*, not entire gpio struct drm/nouveau/hwsq: remove some magic, give proper opcode names drm/nv50/pm: introduce hwsq-based memory reclocking drm/nv04/disp: handle dual-link spwg panels without needing quirks drm/nouveau/dp: remove broken display depth function, use the improved one drm/nouveau/mxm: implement ROM shadow method drm/nouveau/mxm: implement _DSM shadow method drm/nouveau/mxm: implement wmi shadow method drm/nouveau/mxm: initial implementation of dcb sanitisation drm/nouveau/disp: parse connector info directly in nouveau_connector.c drm/nouveau/i2c: handle bit-banging ourselves drm/nouveau/i2c: fix debug message drm/nouveau/i2c: tidy up bit-bang helpers, also fixing nv50 setsda bug ...
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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