linux/drivers/gpu/drm
Chris Wilson 356ad3cd61 drm: Only decouple the old_fb from the crtc is we call mode_set*
Otherwise when disabling the output we switch to the new fb (which is
likely NULL) and skip the call to mode_set -- leaking driver private
state on the old_fb.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29857
Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-09-13 20:25:46 +10:00
..
i2c drm/i2c/ch7006: Don't use POWER_LEVEL_FULL_POWER_OFF on early chip versions. 2010-08-09 15:16:23 +10:00
i810 drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
i830 drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
i915 drm/i915: don't enable self-refresh on Ironlake 2010-09-10 15:11:43 +01:00
mga drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
nouveau Merge remote branch 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next into drm-fixes 2010-09-03 13:31:33 +10:00
r128 drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
radeon drm/radeon/kms: don't enable underscan with interlaced modes 2010-09-13 20:25:24 +10:00
savage Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-08-23 18:28:03 -07:00
sis drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
tdfx drm: convert drm_ioctl to unlocked_ioctl 2009-12-18 11:22:31 +10:00
ttm drm: move ttm global code to core drm 2010-08-04 09:46:06 +10:00
via drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
vmwgfx Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-08-23 18:28:03 -07:00
Kconfig drm/radeon/kms: add support for internal thermal sensors (v3) 2010-08-02 10:00:00 +10:00
Makefile drm: move ttm global code to core drm 2010-08-04 09:46:06 +10:00
README.drm
ati_pcigart.c drm/radeon: Fix pci_map_page() error checking 2010-08-12 09:38:29 +10:00
drm_agpsupport.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
drm_auth.c drivers/gpu/drm: Use kzalloc 2010-05-18 15:57:05 +10:00
drm_buffer.c drm: Add generic multipart buffer. 2010-02-23 09:46:20 +10:00
drm_bufs.c DRM: Replace kmalloc/memset combos with kzalloc 2010-08-12 09:12:30 +10:00
drm_cache.c
drm_context.c
drm_crtc.c drm: expand gamma_set 2010-08-10 10:47:00 +10:00
drm_crtc_helper.c drm: Only decouple the old_fb from the crtc is we call mode_set* 2010-09-13 20:25:46 +10:00
drm_debugfs.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
drm_dma.c drivers/gpu/drm: Use kzalloc 2010-05-18 15:57:05 +10:00
drm_dp_i2c_helper.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
drm_drawable.c
drm_drv.c drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
drm_edid.c Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2010-08-12 09:21:39 -07:00
drm_edid_modes.h drm/edid: Split mode lists out to their own header for readability 2010-08-10 10:47:00 +10:00
drm_encoder_slave.c drm/kms: Simplify setup of the initial I2C encoder config. 2010-08-05 09:37:45 +10:00
drm_fb_helper.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-08-28 13:55:31 -07:00
drm_fops.c Merge remote branch 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next into drm-fixes 2010-08-27 09:09:46 +10:00
drm_gem.c drm: Use ENOENT consistently for the error return for an unmatched handle. 2010-08-10 10:46:55 +10:00
drm_global.c drm: move ttm global code to core drm 2010-08-04 09:46:06 +10:00
drm_hashtab.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
drm_info.c drm: Add support for platform devices to register as DRM devices 2010-06-01 10:07:39 +10:00
drm_ioc32.c drm: convert drm_ioctl to unlocked_ioctl 2009-12-18 11:22:31 +10:00
drm_ioctl.c drm: Fix support for PCI domains 2010-08-10 08:20:20 +10:00
drm_irq.c Merge branch 'drm-tracepoints' into drm-testing 2010-07-07 18:38:44 +10:00
drm_lock.c drm: fix regression in drm locking since BKL removal. 2010-08-27 09:10:28 +10:00
drm_memory.c drivers/gpu/drm/drm_memory.c: fix check for end of loop 2010-04-28 18:41:51 +10:00
drm_mm.c drm: mm: fix range restricted allocations 2010-08-27 09:10:16 +10:00
drm_modes.c drm/modes: Fix CVT-R modeline generation 2010-08-27 09:10:33 +10:00
drm_pci.c drm: Add support for platform devices to register as DRM devices 2010-06-01 10:07:39 +10:00
drm_platform.c drm: Add support for platform devices to register as DRM devices 2010-06-01 10:07:39 +10:00
drm_proc.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
drm_scatter.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
drm_sman.c
drm_stub.c drm: Free devname along with master->unique 2010-08-02 10:14:30 +10:00
drm_sysfs.c Merge branch 'drm-platform' into drm-testing 2010-07-07 18:37:35 +10:00
drm_trace.h drm: add per-event vblank event trace points 2010-07-02 14:03:24 +10:00
drm_trace_points.c drm: add vblank event trace point 2010-07-02 14:02:44 +10:00
drm_vm.c drm: fix end of loop test 2010-08-20 08:48:34 +10:00

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