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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 15:44:51 +1000 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 15:44:51 +1000 |
commit | 43d2548bb2ef7e6d753f91468a746784041e522d (patch) | |
tree | 77d13fcd48fd998393abb825ec36e2b732684a73 /drivers/gpu/drm/README.drm | |
parent | 585583d95c5660973bc0cf64add517b040acd8a4 (diff) | |
parent | 85082fd7cbe3173198aac0eb5e85ab1edcc6352c (diff) |
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of:
arch/powerpc/Kconfig
Diffstat (limited to 'drivers/gpu/drm/README.drm')
-rw-r--r-- | drivers/gpu/drm/README.drm | 43 |
1 files changed, 43 insertions, 0 deletions
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 |