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0839ccb8ac
android_kernel_xiaomi_sm8350/drivers/gpu/drm
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Keith Packard 0839ccb8ac i915: use io-mapping interfaces instead of a variety of mapping kludges 
Impact: optimize/clean-up the IO mapping implementation of the i915 DRM driver

Switch the i915 device aperture mapping to the io-mapping interface, taking
advantage of the cleaner API to extend it across all of the mapping uses,
including both pwrite and relocation updates.

This dramatically improves performance on 64-bit kernels which were using
the same slow path as 32-bit non-HIGHMEM kernels prior to this patch.

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-31 10:12:40 +01:00
..
i810
i830
i915 i915: use io-mapping interfaces instead of a variety of mapping kludges 2008-10-31 10:12:40 +01:00
mga drm: kill drm_device->irq 2008-10-18 07:10:53 +10:00
r128 drm: kill drm_device->irq 2008-10-18 07:10:53 +10:00
radeon radeon: fix PCI bus mastering support enables. 2008-10-18 07:10:54 +10:00
savage
sis SiS DRM: fix a pointer cast warning 2008-10-18 07:10:10 +10:00
tdfx
via drm: kill drm_device->irq 2008-10-18 07:10:53 +10:00
ati_pcigart.c
drm_agpsupport.c i915: Map status page cached for chips with GTT-based HWS location. 2008-10-18 07:10:53 +10:00
drm_auth.c
drm_bufs.c
drm_cache.c drm: wbinvd is cache coherent. 2008-10-18 07:10:53 +10:00
drm_context.c
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: Add GEM ("graphics execution manager") to i915 driver. 2008-10-18 07:10:12 +10:00
drm_fops.c drm: Add GEM ("graphics execution manager") to i915 driver. 2008-10-18 07:10:12 +10:00
drm_gem.c DRM: Return -EBADF on bad object in flink, and return curent name if it exists. 2008-10-18 07:10:52 +10:00
drm_hashtab.c
drm_ioc32.c drm: Add 32-bit compatibility for DRM_IOCTL_UPDATE_DRAW. 2008-10-23 13:46:33 +10:00
drm_ioctl.c
drm_irq.c drm: Remove two leaks of vblank reference count in error paths. 2008-10-23 13:42:27 +10:00
drm_lock.c drm/i915: hold dev->struct_mutex and DRM lock during vblank ring operations 2008-10-23 13:45:56 +10:00
drm_memory.c drm: Add GEM ("graphics execution manager") to i915 driver. 2008-10-18 07:10:12 +10:00
drm_mm.c drm: Add GEM ("graphics execution manager") to i915 driver. 2008-10-18 07:10:12 +10:00
drm_pci.c
drm_proc.c i915: Fix format string warnings on x86-64. 2008-10-23 13:42:27 +10:00
drm_scatter.c
drm_sman.c
drm_stub.c drm: kill drm_device->irq 2008-10-18 07:10:53 +10:00
drm_sysfs.c drm: fix sysfs error path. 2008-10-18 07:10:11 +10:00
drm_vm.c
Kconfig Export tiny shmem_file_setup for DRM-GEM 2008-10-20 16:17:42 -07:00
Makefile drm: Add GEM ("graphics execution manager") to i915 driver. 2008-10-18 07:10:12 +10:00
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