From c0e09200dc0813972442e550a5905a132768e56c Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Thu, 29 May 2008 10:09:59 +1000 Subject: drm: reorganise drm tree to be more future proof. With the coming of kernel based modesetting and the memory manager stuff, the everything in one directory approach was getting very ugly and starting to be unmanageable. This restructures the drm along the lines of other kernel components. It creates a drivers/gpu/drm directory and moves the hw drivers into subdirectores. It moves the includes into an include/drm, and sets up the unifdef for the userspace headers we should be exporting. Signed-off-by: Dave Airlie --- drivers/gpu/drm/README.drm | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 drivers/gpu/drm/README.drm (limited to 'drivers/gpu/drm/README.drm') diff --git a/drivers/gpu/drm/README.drm b/drivers/gpu/drm/README.drm new file mode 100644 index 00000000000..b5b33272258 --- /dev/null +++ b/drivers/gpu/drm/README.drm @@ -0,0 +1,43 @@ +************************************************************ +* For the very latest on DRI development, please see: * +* http://dri.freedesktop.org/ * +************************************************************ + +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 -- cgit v1.2.3