12 Jul, 2013
1 commit
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Move the definitions for wound/wait mutexes out to a separate
header, ww_mutex.h. This reduces clutter in mutex.h, and
increases readability.Suggested-by: Linus Torvalds
Signed-off-by: Maarten Lankhorst
Acked-by: Peter Zijlstra
Acked-by: Rik van Riel
Acked-by: Maarten Lankhorst
Cc: Dave Airlie
Link: http://lkml.kernel.org/r/51D675DC.3000907@canonical.com
[ Tidied up the code a bit. ]
Signed-off-by: Ingo Molnar
28 Jun, 2013
1 commit
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This adds support for a generic reservations framework that can be
hooked up to ttm and dma-buf and allows easy sharing of reservations
across devices.The idea is that a dma-buf and ttm object both will get a pointer
to a struct reservation_object, which has to be reserved before
anything is done with the contents of the dma-buf.Changes since v1:
- Fix locking issue in ticket_reserve, which could cause mutex_unlock
to be called too many times.
Changes since v2:
- All fence related calls and members have been taken out for now,
what's left is the bare minimum to be useful for ttm locking conversion.
Changes since v3:
- Removed helper functions too. The documentation has an example
implementation for locking. With the move to ww_mutex there is no
need to have much logic any more.Signed-off-by: Maarten Lankhorst
Reviewed-by: Jerome Glisse
Signed-off-by: Dave Airlie
