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Thomas Hellstrom 702adba224 drm/ttm/radeon/nouveau: Kill the bo lock in favour of a bo device fence_lock 
The bo lock used only to protect the bo sync object members, and since it
is a per bo lock, fencing a buffer list will see a lot of locks and unlocks.
Replace it with a per-device lock that protects the sync object members on
*all* bos. Reading and setting these members will always be very quick, so
the risc of heavy lock contention is microscopic. Note that waiting for
sync objects will always take place outside of this lock.

The bo device fence lock will eventually be replaced with a seqlock /
rcu mechanism so we can determine that a bo is idle under a
rcu / read seqlock.

However this change will allow us to batch fencing and unreserving of
buffers with a minimal amount of locking.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jerome Glisse <j.glisse@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
 		2010-11-22 13:25:18 +10:00
..
i2c drm: Import driver for the sil164 I2C TMDS transmitter. 2010-08-02 10:21:13 +10:00
ttm drm/ttm/radeon/nouveau: Kill the bo lock in favour of a bo device fence_lock 2010-11-22 13:25:18 +10:00
Kbuild include: replace unifdef-y with header-y 2010-08-14 22:26:51 +02:00
drm.h drm: move ttm global code to core drm 2010-08-04 09:46:06 +10:00
drmP.h drm/vblank: Add support for precise vblank timestamping. 2010-11-22 11:45:05 +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/vblank: Add support for precise vblank timestamping. 2010-11-22 11:45:05 +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 drm: add KGDB/KDB support 2010-08-05 09:22:31 -05:00
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: implement helper functions for scanning lru list 2010-07-07 12:29:51 +10:00
drm_mode.h drm: add "auto" dithering method 2010-07-21 11:19:45 +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: fix PCI ID 5657 to be an RV410 2010-09-27 09:21:28 +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
i810_drm.h drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
i830_drm.h drm: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +10:00
i915_drm.h drm/i915: Enable SandyBridge blitter ring 2010-10-21 19:08:39 +01:00
intel-gtt.h intel-gtt: clean up gtt size reporting 2010-09-21 11:40:06 +01:00
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: Expose some BO usage flags to userspace. 2010-11-18 14:38:29 +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: block userspace under allocating buffer and having drivers overwrite it (v2) 2010-08-17 14:52:25 +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