Skip to content
Newer
Older
100644 26 lines (19 sloc) 1.07 KB
0c4490c @gregkh initial 4.40 import
authored Jul 1, 2009
1 ************************************************************
2 * For the very latest on DRI development, please see: *
3 * http://dri.freedesktop.org/ *
4 ************************************************************
5
6 The Direct Rendering Manager (drm) is a device-independent kernel-level
7 device driver that provides support for the XFree86 Direct Rendering
8 Infrastructure (DRI).
9
10 The DRM supports the Direct Rendering Infrastructure (DRI) in four major
11 ways:
12
13 1. The DRM provides synchronized access to the graphics hardware via
14 the use of an optimized two-tiered lock.
15
16 2. The DRM enforces the DRI security policy for access to the graphics
17 hardware by only allowing authenticated X11 clients access to
18 restricted regions of memory.
19
20 3. The DRM provides a generic DMA engine, complete with multiple
21 queues and the ability to detect the need for an OpenGL context
22 switch.
23
24 4. The DRM is extensible via the use of small device-specific modules
25 that rely extensively on the API exported by the DRM module.
Something went wrong with that request. Please try again.