patch-2.2.18 linux/drivers/char/drm/README.drm

• Lines: 42
• Date: Fri Sep 1 14:12:32 2000
• Orig file: v2.2.17/drivers/char/drm/README.drm
• Orig date: Thu Jan 1 01:00:00 1970

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/drivers/char/drm/README.drm linux/drivers/char/drm/README.drm
@@ -0,0 +1,41 @@
+
+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://precisioninsight.com/piinsights.html
+
+For specific information about kernel-level support, see:
+
+    The Direct Rendering Manager, Kernel Support for the Direct Rendering
+    Infrastructure
+    http://precisioninsight.com/dr/drm.html
+
+    Hardware Locking for the Direct Rendering Infrastructure
+    http://precisioninsight.com/dr/locking.html
+
+    A Security Analysis of the Direct Rendering Infrastructure
+    http://precisioninsight.com/dr/security.html
+
+
+
+$XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/README.drm,v 1.2 1999/09/27 14:59:24 dawes Exp $