linux/drivers/gpu/drm
Chris Wilson 534843dabf drm/i915: Use 128k alignment for untiled display surface on i965 (v2)
The original i965, including the revised G35 and Q35, requires an
alignment of 128K for the display surface with linear memory, so
increase the requirement from 64k for these chipsets. For the later
chipsets in the i965 family, only a 4k alignment is required. (So
long as we do not start performing asynchronous flips.)

Note the impact of this should be slight as on i965 we should be using a
tiled frontbuffer for anything up to a 4096x4096 display.

v2: compilation fixes and note that the docs do not exclude the G35 from
the extra alignment.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-08-01 19:03:47 -07:00
..
i2c Merge remote branch 'nouveau/for-airlied' of ../drm-nouveau-next into drm-core-next 2010-08-02 10:31:47 +10:00
i810 drm/i810: fixed coding style issues 2010-08-02 10:15:41 +10:00
i830 drm/i830: fixed brace and spacing coding style issues 2010-08-02 10:15:54 +10:00
i915 drm/i915: Use 128k alignment for untiled display surface on i965 (v2) 2010-08-01 19:03:47 -07:00
mga drm/mga: fixed brace, macro and spacing coding style issues 2010-08-02 10:17:36 +10:00
nouveau Merge remote branch 'nouveau/for-airlied' of ../drm-nouveau-next into drm-core-next 2010-08-02 10:31:47 +10:00
r128 drm/r128: fixed brace and spacing coding style issues 2010-08-02 10:17:48 +10:00
radeon drm/radeon/kms: trivial code style fixes for audio 2010-08-02 10:17:10 +10:00
savage drm: Remove drm_resource wrappers 2010-06-01 10:07:24 +10:00
sis drm/sis: fixed brace and spacing coding style issues 2010-08-02 10:18:17 +10:00
tdfx
ttm Merge tag 'v2.6.35-rc6' into drm-radeon-next 2010-08-02 10:05:24 +10:00
via drm/via: fixed coding style issues, simplified return 2010-08-02 10:17:23 +10:00
vmwgfx Merge branch 'drm-radeon-next' of ../drm-radeon-next into drm-core-next 2010-08-02 10:24:46 +10:00
ati_pcigart.c
drm_agpsupport.c
drm_auth.c drivers/gpu/drm: Use kzalloc 2010-05-18 15:57:05 +10:00
drm_buffer.c
drm_bufs.c Merge branch 'drm-platform' into drm-testing 2010-07-07 18:37:35 +10:00
drm_cache.c
drm_context.c
drm_crtc_helper.c drm: unify crtc,connector,encoder,fb debug printing 2010-07-16 11:25:02 +10:00
drm_crtc.c drm: Return EBUSY if the framebuffer is unbound when flipping. 2010-07-21 11:26:07 +10:00
drm_debugfs.c
drm_dma.c drivers/gpu/drm: Use kzalloc 2010-05-18 15:57:05 +10:00
drm_dp_i2c_helper.c
drm_drawable.c
drm_drv.c drm: Free the idr layers before calling idr_destroy() 2010-08-02 10:13:56 +10:00
drm_edid.c drm: Add support for platform devices to register as DRM devices 2010-06-01 10:07:39 +10:00
drm_encoder_slave.c
drm_fb_helper.c drm: correctly update connector DPMS status in drm_fb_helper 2010-07-07 14:21:39 +10:00
drm_fops.c drivers/gpu/drm: Use kzalloc 2010-05-18 15:57:05 +10:00
drm_gem.c drm: Free the idr layers before calling idr_destroy() 2010-08-02 10:13:56 +10:00
drm_hashtab.c
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_ioctl.c drm: Add support for platform devices to register as DRM devices 2010-06-01 10:07:39 +10:00
drm_irq.c Merge branch 'drm-tracepoints' into drm-testing 2010-07-07 18:38:44 +10:00
drm_lock.c
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: implement helper functions for scanning lru list 2010-07-07 12:29:51 +10:00
drm_modes.c drm/edid: Fix sync polarity for secondary GTF curve 2010-04-09 10:05:40 +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
drm_scatter.c
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_points.c drm: add vblank event trace point 2010-07-02 14:02:44 +10:00
drm_trace.h drm: add per-event vblank event trace points 2010-07-02 14:03:24 +10:00
drm_vm.c drm: Add __arm defines to DRM 2010-06-01 10:07:56 +10:00
Kconfig drm/radeon/kms: add support for internal thermal sensors (v3) 2010-08-02 10:00:00 +10:00
Makefile Merge branch 'drm-tracepoints' into drm-testing 2010-07-07 18:38:44 +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