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linux/drivers/gpu/drm
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Inki Dae 4744ad2414 drm/exynos: use DMA_ATTR_NO_KERNEL_MAPPING attribute 
Changelog v3:
just code cleanup.

Changelog v2:
fix argument to dma_mmap_attr function.
- use pages instead of kvaddr because kvaddr is 0 with
  DMA_ATTR_NO_KERNEL_MAPPING.

Changelog v1:
When gem allocation is requested, kernel space mapping isn't needed.
But if need, such as console framebuffer, the physical pages would be
mapped with kernel space though vmap function.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2012-12-13 06:05:45 -08:00
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ast
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cirrus
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exynos
drm/exynos: use DMA_ATTR_NO_KERNEL_MAPPING attribute
2012-12-13 06:05:45 -08:00
gma500
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i2c
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i810
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i915
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mga
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mgag200
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nouveau
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r128
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radeon
drm/radeon: fix fence driver for dma ring when wb is disabled
2012-12-12 17:16:51 -05:00
savage
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shmobile
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sis
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tdfx
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tegra
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ttm
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udl
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via
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vmwgfx
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ati_pcigart.c
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drm_agpsupport.c
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drm_auth.c
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drm_buffer.c
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drm_bufs.c
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drm_cache.c
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drm_context.c
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drm_crtc_helper.c
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drm_crtc.c
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drm_debugfs.c
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drm_dma.c
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drm_dp_helper.c
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drm_drv.c
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drm_edid_load.c
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drm_edid_modes.h
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drm_edid.c
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drm_encoder_slave.c
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drm_fb_cma_helper.c
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drm_fb_helper.c
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drm_fops.c
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drm_gem_cma_helper.c
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drm_gem.c
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drm_global.c
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drm_hashtab.c
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drm_info.c
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drm_ioc32.c
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drm_ioctl.c
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drm_irq.c
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drm_lock.c
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drm_memory.c
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drm_mm.c
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drm_modes.c
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drm_pci.c
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drm_platform.c
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drm_prime.c
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drm_proc.c
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drm_scatter.c
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drm_stub.c
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drm_sysfs.c
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drm_trace_points.c
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drm_trace.h
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drm_usb.c
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drm_vm.c
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Kconfig
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Makefile
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README.drm
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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