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77d26dc9b9
android_kernel_xiaomi_sm8350/drivers/gpu/drm
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Ma Ling 77d26dc9b9 drm: clean dirty memory after device release 
In current code we register/unregister connector object by
drm_sysfs_connector_add/remove function.

However under some cases, we need to dynamically register or unregister device
multiple times, so we have to go through register -> unregister ->register
routine.

Because after device_unregister function our memory is dirty, we need to do
clean operation in order to re-register the device, otherwise the system
will crash.  The patch intends to clean device after device release.

Signed-off-by: Ma Ling <ling.ma@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-04-20 10:03:46 +10:00
..
i810 drm: Split drm_map and drm_local_map 2009-03-13 14:23:56 +10:00
i830 drm: Split drm_map and drm_local_map 2009-03-13 14:23:56 +10:00
i915 Merge branch 'drm-intel-next' of ../anholt-2.6 into drm-linus 2009-04-03 10:27:21 +10:00
mga drm: Make drm_local_map use a resource_size_t offset 2009-03-13 14:23:57 +10:00
r128 drm: Make drm_local_map use a resource_size_t offset 2009-03-13 14:23:57 +10:00
radeon drm/radeon: load the right microcode on rs780 2009-04-03 10:31:23 +10:00
savage drm: Use resource_size_t for drm_get_resource_{start, len} 2009-03-13 14:23:56 +10:00
sis SiS DRM: fix a pointer cast warning 2008-10-18 07:10:10 +10:00
tdfx
via drm: count reaches -1 2009-04-20 09:28:20 +10:00
ati_pcigart.c drm/ati_pcigart: use memset_io to reset the memory 2009-03-13 14:24:14 +10:00
drm_agpsupport.c drm: stash AGP include under the do-we-have-AGP ifdef 2009-01-22 22:27:11 +10:00
drm_auth.c drm: move to kref per-master structures. 2008-12-29 17:47:22 +10:00
drm_bufs.c drm: Preserve SHMLBA bits in hash key for _DRM_SHM mappings. 2009-03-13 14:24:03 +10:00
drm_cache.c drm: wbinvd is cache coherent. 2008-10-18 07:10:53 +10:00
drm_context.c drm: Split drm_map and drm_local_map 2009-03-13 14:23:56 +10:00
drm_crtc_helper.c drm: remove unused "can_grow" parameter from drm_crtc_helper_initial_config 2009-04-03 10:21:44 +10:00
drm_crtc.c drm: Release user fbs in drm_release 2009-02-20 12:21:11 +10:00
drm_debugfs.c drm: Convert proc files to seq_file and introduce debugfs 2009-03-27 15:12:00 -07:00
drm_dma.c
drm_drawable.c drm: Avoid oops in DRM_IOCTL_RM_DRAW if a bad handle is supplied. 2008-10-23 13:46:54 +10:00
drm_drv.c drm: Use a little stash on the stack to avoid kmalloc in most DRM ioctls. 2009-03-29 18:31:37 +10:00
drm_edid.c drm: fix EDID backward compat check 2009-04-03 09:21:46 +10:00
drm_fops.c drm: drm_fops.c unlock missing on error path 2009-03-29 18:31:47 +10:00
drm_gem.c drm: Use pgprot_writecombine in GEM GTT mapping to get the right bits for !PAT. 2009-04-02 14:28:32 -07:00
drm_hashtab.c drm: GEM mmap support 2008-12-29 17:47:22 +10:00
drm_info.c drm: merge Linux master into HEAD 2009-03-28 20:22:18 -04:00
drm_ioc32.c drm: Only use DRM_IOCTL_UPDATE_DRAW compat wrapper for compat X86. 2009-03-13 14:24:04 +10:00
drm_ioctl.c drm: fix leak of uninitialized data to userspace 2008-12-29 17:47:22 +10:00
drm_irq.c drm: Correct unbalanced drm_vblank_put() during mode setting. 2009-02-25 14:45:50 +10:00
drm_lock.c drm: Avoid client deadlocks when the master disappears. 2009-03-03 09:50:20 +10:00
drm_memory.c drm: Split drm_map and drm_local_map 2009-03-13 14:23:56 +10:00
drm_mm.c DRM: add mode setting support 2008-12-29 17:47:23 +10:00
drm_modes.c DRM: add mode setting support 2008-12-29 17:47:23 +10:00
drm_pci.c
drm_proc.c drm: Convert proc files to seq_file and introduce debugfs 2009-03-27 15:12:00 -07:00
drm_scatter.c
drm_sman.c
drm_stub.c drm: Convert proc files to seq_file and introduce debugfs 2009-03-27 15:12:00 -07:00
drm_sysfs.c drm: clean dirty memory after device release 2009-04-20 10:03:46 +10:00
drm_vm.c drm: Make drm_local_map use a resource_size_t offset 2009-03-13 14:23:57 +10:00
Kconfig fbdev/drm: fix Kconfig submenu mess in "Graphics support" 2009-02-18 15:37:56 -08:00
Makefile drm: Convert proc files to seq_file and introduce debugfs 2009-03-27 15:12:00 -07:00
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