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linux/include/drm
Daniel Vetter 709ea97145 drm: implement helper functions for scanning lru list
These helper functions can be used to efficiently scan lru list
for eviction. Eviction becomes a three stage process:
1. Scanning through the lru list until a suitable hole has been found.
2. Scan backwards to restore drm_mm consistency and find out which
   objects fall into the hole.
3. Evict the objects that fall into the hole.

These helper functions don't allocate any memory (at the price of
not allowing any other concurrent operations). Hence this can also be
used for ttm (which does lru scanning under a spinlock).

Evicting objects in this fashion should be more fair than the current
approach by i915 (scan the lru for a object large enough to contain
the new object). It's also more efficient than the current approach used
by ttm (uncoditionally evict objects from the lru until there's enough
free space).

Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Thomas Hellstrom <thellstrom@vmwgfx.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-07-07 12:29:51 +10:00
..
i2c
ttm
drm_buffer.h
drm_cache.h
drm_core.h
drm_crtc_helper.h drm/kms: disable/enable poll around switcheroo on/off 2010-06-01 10:36:02 +10:00
drm_crtc.h
drm_dp_helper.h
drm_edid.h
drm_encoder_slave.h
drm_fb_helper.h
drm_fixed.h
drm_hashtab.h
drm_mem_util.h
drm_memory.h
drm_mm.h drm: implement helper functions for scanning lru list 2010-07-07 12:29:51 +10:00
drm_mode.h
drm_os_linux.h
drm_pciids.h
drm_sarea.h
drm_sman.h
drm_sysfs.h
drm.h
drmP.h
i810_drm.h
i830_drm.h
i915_drm.h drm/i915: add HAS_BSD check to i915_getparam 2010-06-01 11:21:09 -07:00
Kbuild
mga_drm.h
nouveau_drm.h drm/nouveau: Add getparam for current PTIMER time. 2010-05-28 16:06:21 +10:00
r128_drm.h
radeon_drm.h drm/radeon/kms/evergreen: set accel_enabled 2010-06-08 09:34:42 +10:00
savage_drm.h
sis_drm.h
via_drm.h
vmwgfx_drm.h drm/vmwgfx: Allow userspace to change default layout. Bump minor. 2010-06-03 13:13:36 +10:00