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Daniel Vetter ea7b1dd448 drm: mm: track free areas implicitly 
The idea is to track free holes implicitly by marking the allocation
immediatly preceeding a hole.

To avoid an ugly corner case add a dummy head_node to struct drm_mm
to track the hole that spans to complete allocation area when the
memory manager is empty.

To guarantee that there's always a preceeding/following node (that might
be marked as hole_follows == 1), move the mm->node_list list_head to the
head_node.

The main allocator and fair-lru scan code actually becomes simpler.
Only the debug code slightly suffers because free areas are no longer
explicit.

Also add drm_mm_for_each_node (which will be much more useful when
struct drm_mm_node is embeddable).

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
 		2011-02-23 10:32:34 +10:00
..
i2c drm: Import driver for the sil164 I2C TMDS transmitter. 2010-08-02 10:21:13 +10:00
ttm drm/ttm: Fix up io_mem_reserve / io_mem_free calling 2010-11-22 13:25:22 +10:00
Kbuild drm: remove i830 driver 2011-02-07 12:14:18 +10:00
drm.h drm: dumb scanout create/mmap for intel/radeon (v3) 2011-02-07 12:16:14 +10:00
drmP.h drm: add usb framework 2011-02-07 13:09:42 +10:00
drm_buffer.h drm: Add generic multipart buffer. 2010-02-23 09:46:20 +10:00
drm_cache.h drm/ttm: consolidate cache flushing code in one place. 2009-08-27 09:53:47 +10:00
drm_core.h drm: Fix support for PCI domains 2010-08-10 08:20:20 +10:00
drm_crtc.h drm: dumb scanout create/mmap for intel/radeon (v3) 2011-02-07 12:16:14 +10:00
drm_crtc_helper.h drm, kdb, kms: Change mode_set_base_atomic() enter argument to be an enum 2010-10-19 14:13:33 +10:00
drm_dp_helper.h drm/i915: fetch eDP configuration data from the VBT 2010-10-08 10:28:21 +01:00
drm_edid.h drm/edid: Add detailed block walk for CEA extensions 2010-08-10 10:46:57 +10:00
drm_encoder_slave.h drm/kms: no need to return void value (encoder) 2009-08-19 16:06:49 +10:00
drm_fb_helper.h Revert "drm: Update fbdev fb_fix_screeninfo" 2011-01-14 16:10:28 -08:00
drm_fixed.h drm: move radeon_fixed.h to shared drm_fixed.h header 2010-05-18 18:21:33 +10:00
drm_global.h drm: move ttm global code to core drm 2010-08-04 09:46:06 +10:00
drm_hashtab.h drm: include kernel list header file in hashtab header 2009-06-12 15:56:34 +10:00
drm_mem_util.h drm/ttm: use drm calloc large and free large 2010-03-15 10:31:43 +10:00
drm_memory.h includecheck fix: include/drm, drm_memory.h 2009-09-20 16:02:58 +05:30
drm_mm.h drm: mm: track free areas implicitly 2011-02-23 10:32:34 +10:00
drm_mode.h drm: dumb scanout create/mmap for intel/radeon (v3) 2011-02-07 12:16:14 +10:00
drm_os_linux.h drm/i915: add i915_lp_ring_sync helper 2009-11-05 14:47:07 -08:00
drm_pciids.h drm/radeon: remove 0x4243 pci id 2011-02-02 12:50:41 +10:00
drm_sarea.h drm: move to kref per-master structures. 2008-12-29 17:47:22 +10:00
drm_sman.h drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
drm_sysfs.h drm: Enable drm drivers to add drm sysfs devices. 2009-08-19 16:08:51 +10:00
drm_usb.h drm: add usb framework 2011-02-07 13:09:42 +10:00
i810_drm.h drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
i915_drm.h drm/i915: Allow the application to choose the constant addressing mode 2010-12-20 09:41:36 +00:00
intel-gtt.h intel-gtt: export api for drm/i915 2010-11-23 20:14:47 +00:00
mga_drm.h drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
nouveau_drm.h drm/nouveau: remove some useless GETPARAMs 2010-12-03 15:11:57 +10:00
r128_drm.h drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
radeon_drm.h drm/radeon/kms: add new radeon_info ioctl query for clock crystal freq 2011-01-25 08:41:04 +10:00
savage_drm.h drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
sis_drm.h drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
via_drm.h drm: Add compatibility #ifdefs for *BSD 2009-12-04 08:59:28 +10:00
vmwgfx_drm.h drm/vmwgfx: Add a parameter to get the max fb size 2010-10-06 11:29:58 +10:00