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7a1619b97e978bb9c05fa4bbe64171068bd5bf85
linux/drivers/gpu/drm
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Michel Dänzer 7a1619b97e drm/radeon: Make sure CS mutex is held across GPU reset. 
This was only the case if the GPU reset was triggered from the CS ioctl,
otherwise other processes could happily enter the CS ioctl and wreak havoc
during the GPU reset.

This is a little complicated because the GPU reset can be triggered from the
CS ioctl, in which case we're already holding the mutex, or from other call
paths, in which case we need to lock the mutex. AFAICT the mutex API doesn't
allow recursive locking or finding out the mutex owner, so we need to handle
this with helper functions which allow recursive locking from the same
process.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-11-11 11:02:10 +00:00
..
exynos
drm/exynos: fixed build warnings and comments.
2011-10-18 10:01:19 +01:00
i2c
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
i810
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
i915
drm/i915: Fix object refcount leak on mmappable size limit error path.
2011-11-08 10:50:36 +00:00
mga
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
nouveau
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
r128
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
radeon
drm/radeon: Make sure CS mutex is held across GPU reset.
2011-11-11 11:02:10 +00:00
savage
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
sis
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
tdfx
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
ttm
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
via
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
vmwgfx
vmwgfx: Only allow 64x64 cursors
2011-11-11 10:58:26 +00:00
ati_pcigart.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_agpsupport.c
drm: kill drm_agp_chipset_flush
2010-11-23 20:14:44 +00:00
drm_auth.c
…
drm_buffer.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_bufs.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_cache.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_context.c
…
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_crtc.c
drm: Ensure string is null terminated.
2011-11-11 10:59:15 +00:00
drm_debugfs.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_dma.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_dp_i2c_helper.c
…
drm_drv.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_edid_modes.h
drm: Mark constant arrays of drm_display_mode const
2011-02-23 11:13:11 +10:00
drm_edid.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_encoder_slave.c
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
drm_fb_helper.c
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
drm_fops.c
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
drm_gem.c
drm/gem: add functions for mmap offset creation
2011-08-30 11:06:06 +01:00
drm_global.c
…
drm_hashtab.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_info.c
Merge remote branch 'intel/drm-intel-next' of ../drm-next into drm-core-next
2011-03-14 14:15:13 +10:00
drm_ioc32.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_ioctl.c
drm/vblank: update recently added vbl interface to be more future proof.
2011-03-24 21:28:46 +10:00
drm_irq.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_lock.c
…
drm_memory.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_mm.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_modes.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_pci.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_platform.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_proc.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_scatter.c
drivers: use kzalloc/kcalloc instead of 'kmalloc+memset', where possible
2011-07-25 20:57:13 -07:00
drm_sman.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_stub.c
drm: Create and use drm_err
2011-04-28 14:53:02 +10:00
drm_sysfs.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_trace_points.c
…
drm_trace.h
…
drm_usb.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_vm.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
Kconfig
vmwgfx: Take the driver out of staging
2011-10-11 13:06:36 +01:00
Makefile
DRM: add DRM Driver for Samsung SoC EXYNOS4210.
2011-10-05 10:27:31 +01:00
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
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