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linux/drivers/gpu/drm
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Chris Wilson 9da3da660d drm/i915: Replace the array of pages with a scatterlist 
Rather than have multiple data structures for describing our page layout
in conjunction with the array of pages, we can migrate all users over to
a scatterlist.

One major advantage, other than unifying the page tracking structures,
this offers is that we replace the vmalloc'ed array (which can be up to
a megabyte in size) with a chain of individual pages which helps reduce
memory pressure.

The disadvantage is that we then do not have a simple array to iterate,
or to access randomly. The common case for this is in the relocation
processing, which will typically fit within a single scatterlist page
and so be almost the same cost as the simple array. For iterating over
the array, the extra function call could be optimised away, but in
reality is an insignificant cost of either binding the pages, or
performing the pwrite/pread.

v2: Fix drm_clflush_sg() to not invoke wbinvd as well! And fix the
trivial compile error from rebasing.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-09-20 14:22:57 +02:00
..
ast
drm/ast: fix EDID memory leak
2012-08-24 09:37:09 +10:00
cirrus
drm/cirrus: Remove unused validate_sequence
2012-08-24 09:34:46 +10:00
exynos
drm: remove the raw_edid field from struct drm_display_info
2012-08-24 09:37:36 +10:00
gma500
gma500: Remove unused variable
2012-09-13 11:40:05 +10:00
i2c
drm/i2c/ch7006: Convert to dev_pm_ops
2012-08-24 09:56:08 +10:00
i810
drm: kill dma queue support
2012-07-19 22:50:55 -04:00
i915
drm/i915: Replace the array of pages with a scatterlist
2012-09-20 14:22:57 +02:00
mga
drm: kill reclaim_buffers callback
2012-07-19 22:50:28 -04:00
mgag200
drm: remove the raw_edid field from struct drm_display_info
2012-08-24 09:37:36 +10:00
nouveau
drm: use %*ph to dump small buffers
2012-09-13 11:28:30 +10:00
r128
drm: kill reclaim_buffers callback
2012-07-19 22:50:28 -04:00
radeon
drm: use %*ph to dump small buffers
2012-09-13 11:28:30 +10:00
savage
drm/savage: clean up reclaim_buffers
2012-07-19 22:50:16 -04:00
shmobile
drm: Renesas SH Mobile DRM driver
2012-09-18 12:28:22 +02:00
sis
drm/sis: fixup sis_mm ioctl structs
2012-07-19 22:51:58 -04:00
tdfx
drm: kill reclaim_buffers callback
2012-07-19 22:50:28 -04:00
ttm
drm: Handle io prot correctly for MIPS.
2012-08-24 09:41:05 +10:00
udl
drm: use %*ph to dump small buffers
2012-09-13 11:28:30 +10:00
via
drm/via: clean up reclaim_buffers
2012-07-19 22:48:28 -04:00
vmwgfx
vmwgfx: remove useless set memory to zero use memset()
2012-09-13 11:34:34 +10:00
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_auth.c
drm: Fix authentication kernel crash
2012-01-25 09:27:45 +00:00
drm_buffer.c
gpu: Add export.h as required to drivers/gpu files.
2011-10-31 19:32:03 -04:00
drm_bufs.c
drm: kill dma queue support
2012-07-19 22:50:55 -04:00
drm_cache.c
drm/i915: Replace the array of pages with a scatterlist
2012-09-20 14:22:57 +02:00
drm_context.c
drm: Unify and fix idr error handling
2012-04-24 09:50:20 +01:00
drm_crtc_helper.c
drm: Don't initialize local ret variable when not needed
2012-05-22 10:32:58 +01:00
drm_crtc.c
drm: Add NV24 and NV42 pixel formats
2012-09-18 12:28:21 +02:00
drm_debugfs.c
drm: kill dma queue support
2012-07-19 22:50:55 -04:00
drm_dma.c
drm: kill dma queue support
2012-07-19 22:50:55 -04:00
drm_dp_i2c_helper.c
…
drm_drv.c
drm: make buffer management work without DRM_MASTER
2012-09-13 11:19:44 +10:00
drm_edid_load.c
drm/edid: limit printk when facing bad edid
2012-09-17 11:16:40 +10:00
drm_edid_modes.h
drm: consistently name interlaced modes
2012-09-13 11:21:03 +10:00
drm_edid.c
drm/edid: limit printk when facing bad edid
2012-09-17 11:16:40 +10:00
drm_encoder_slave.c
gpu: add module.h to drivers/gpu files as required.
2011-10-31 19:32:03 -04:00
drm_fb_cma_helper.c
DRM: Add DRM KMS/FB CMA helper
2012-09-18 12:28:21 +02:00
drm_fb_helper.c
drm/fb helper: don't call drm_helper_connector_dpms directly
2012-09-08 00:51:15 +02:00
drm_fops.c
drm: track dev_mapping in more robust and flexible way
2012-07-25 14:09:30 +10:00
drm_gem_cma_helper.c
DRM: Add DRM GEM CMA helper
2012-09-18 12:28:21 +02:00
drm_gem.c
drm: Add colouring to the range allocator
2012-07-16 05:59:37 +10:00
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
drm: kill dma queue support
2012-07-19 22:50:55 -04:00
drm_ioc32.c
drivers/gpu/drm/drm_ioc32.c: initialize all fields
2012-02-03 09:47:32 +00:00
drm_ioctl.c
drm/prime: expose capability flags for userspace.
2012-05-18 11:12:16 +01:00
drm_irq.c
drm: Add missing static storage class specifier in drm_irq.c file
2012-08-24 10:00:56 +10:00
drm_lock.c
drm: ditch strange DRIVER_DMA_QUEUE only error bail-out
2012-07-19 22:50:47 -04:00
drm_memory.c
drm: remove unused code
2012-02-29 10:18:29 +00:00
drm_mm.c
drm: Add colouring to the range allocator
2012-07-16 05:59:37 +10:00
drm_modes.c
drm: Remove two unused fields from struct drm_display_mode
2012-08-22 09:27:27 +10:00
drm_pci.c
drm/pci: add support for getting the supported link bw.
2012-07-19 22:29:25 -04:00
drm_platform.c
drm: cope with platformdev->id == -1
2012-03-07 14:03:40 +00:00
drm_prime.c
drm/prime: add exported buffers to current fprivs imported buffer list (v2)
2012-05-23 10:46:03 +01:00
drm_proc.c
drm: Add missing static storage class specifiers in drm_proc.c file
2012-08-22 09:30:00 +10:00
drm_scatter.c
drivers: use kzalloc/kcalloc instead of 'kmalloc+memset', where possible
2011-07-25 20:57:13 -07:00
drm_stub.c
drm: Don't initialize local ret variable when not needed
2012-05-22 10:32:58 +01:00
drm_sysfs.c
drm: fail gracefully when proc isn't setup.
2012-07-16 05:57:03 +10:00
drm_trace_points.c
…
drm_trace.h
…
drm_usb.c
drm/usb: fix module license on drm/usb layer.
2012-04-19 09:33:32 +01:00
drm_vm.c
drm: Remove unnecessary test for ARM.
2012-09-13 11:28:39 +10:00
Kconfig
drm: Renesas SH Mobile DRM driver
2012-09-18 12:28:22 +02:00
Makefile
drm: Renesas SH Mobile DRM driver
2012-09-18 12:28:22 +02:00
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