original_kernel

History

Marcin Slusarz b3e067c0b2 drm: serialize access to list of debugfs files Nouveau, when configured with debugfs, creates debugfs files for every channel, so structure holding list of files needs to be protected from simultaneous changes by multiple threads. Without this patch it's possible to hit kernel oops in drm_debugfs_remove_files just by running a couple of xterms with looped glxinfo. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>		2011-11-11 11:05:19 +00:00
..
exynos	…
i2c	…
i810	…
i915	drm: serialize access to list of debugfs files	2011-11-11 11:05:19 +00:00
mga	…
nouveau	…
r128	…
radeon	drm/radeon/kms: fix use of vram scratch page on evergreen/ni	2011-11-11 11:04:18 +00:00
savage	…
sis	…
tdfx	…
ttm	…
via	…
vmwgfx	vmwgfx: Only allow 64x64 cursors	2011-11-11 10:58:26 +00:00
Kconfig	…
Makefile	…
README.drm	…
ati_pcigart.c	…
drm_agpsupport.c	…
drm_auth.c	…
drm_buffer.c	…
drm_bufs.c	…
drm_cache.c	…
drm_context.c	…
drm_crtc.c	drm: Ensure string is null terminated.	2011-11-11 10:59:15 +00:00
drm_crtc_helper.c	gpu: add moduleparam.h to drivers/gpu/drm/drm_crtc_helper.c	2011-10-31 19:32:04 -04:00
drm_debugfs.c	drm: serialize access to list of debugfs files	2011-11-11 11:05:19 +00:00
drm_dma.c	…
drm_dp_i2c_helper.c	…
drm_drv.c	…
drm_edid.c	…
drm_edid_modes.h	…
drm_encoder_slave.c	…
drm_fb_helper.c	…
drm_fops.c	…
drm_gem.c	…
drm_global.c	…
drm_hashtab.c	…
drm_info.c	…
drm_ioc32.c	…
drm_ioctl.c	…
drm_irq.c	…
drm_lock.c	…
drm_memory.c	…
drm_mm.c	…
drm_modes.c	…
drm_pci.c	…
drm_platform.c	…
drm_proc.c	…
drm_scatter.c	…
drm_sman.c	…
drm_stub.c	…
drm_sysfs.c	…
drm_trace.h	…
drm_trace_points.c	…
drm_usb.c	…
drm_vm.c	…

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