linux

History

Keith Packard 50aa253d82 i915: Fix up ring initialization to cover G45 oddities G45 appears quite sensitive to ring initialization register writes, sometimes leaving the HEAD register with the START register contents. Check to make sure HEAD is reset correctly when START is written, and fix it up, screaming loudly. Signed-off-by: Keith Packard <keithp@keithp.com> Signed-off-by: Eric Anholt <eric@anholt.net> Signed-off-by: Dave Airlie <airlied@redhat.com>		2008-10-18 07:10:53 +10:00
..
i810
i830
i915	i915: Fix up ring initialization to cover G45 oddities	2008-10-18 07:10:53 +10:00
mga	drm: kill drm_device->irq	2008-10-18 07:10:53 +10:00
r128	drm: kill drm_device->irq	2008-10-18 07:10:53 +10:00
radeon	drm: kill drm_device->irq	2008-10-18 07:10:53 +10:00
savage
sis	SiS DRM: fix a pointer cast warning	2008-10-18 07:10:10 +10:00
tdfx
via	drm: kill drm_device->irq	2008-10-18 07:10:53 +10:00
ati_pcigart.c
drm_agpsupport.c	drm: Add GEM ("graphics execution manager") to i915 driver.	2008-10-18 07:10:12 +10:00
drm_auth.c
drm_bufs.c
drm_cache.c	drm: wbinvd is cache coherent.	2008-10-18 07:10:53 +10:00
drm_context.c
drm_dma.c
drm_drawable.c
drm_drv.c	drm: Add GEM ("graphics execution manager") to i915 driver.	2008-10-18 07:10:12 +10:00
drm_fops.c	drm: Add GEM ("graphics execution manager") to i915 driver.	2008-10-18 07:10:12 +10:00
drm_gem.c	DRM: Return -EBADF on bad object in flink, and return curent name if it exists.	2008-10-18 07:10:52 +10:00
drm_hashtab.c
drm_ioc32.c
drm_ioctl.c
drm_irq.c	drm: kill drm_device->irq	2008-10-18 07:10:53 +10:00
drm_lock.c	drm: don't set the signal blocker on the master process.	2008-08-25 06:35:33 +10:00
drm_memory.c	drm: Add GEM ("graphics execution manager") to i915 driver.	2008-10-18 07:10:12 +10:00
drm_mm.c	drm: Add GEM ("graphics execution manager") to i915 driver.	2008-10-18 07:10:12 +10:00
drm_pci.c
drm_proc.c	drm: Add GEM ("graphics execution manager") to i915 driver.	2008-10-18 07:10:12 +10:00
drm_scatter.c
drm_sman.c
drm_stub.c	drm: kill drm_device->irq	2008-10-18 07:10:53 +10:00
drm_sysfs.c	drm: fix sysfs error path.	2008-10-18 07:10:11 +10:00
drm_vm.c
Kconfig	FB_SIS=m, DRM_SIS=y is not a legal configuration.	2008-10-18 07:10:11 +10:00
Makefile	drm: Add GEM ("graphics execution manager") to i915 driver.	2008-10-18 07:10:12 +10:00
README.drm

README.drm

************************************************************
* 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