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drm/ttm: kill fence_lock

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No users are left, kill it off! :D
Conversion to the reservation api is next on the list, after
that the functionality can be restored with rcu.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
This commit is contained in:
Maarten Lankhorst
2014-01-21 13:07:31 +01:00
parent 7040138ff8
commit dd7cfd6412
17 changed files with 41 additions and 146 deletions
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5
include/drm/ttm/ttm_bo_api.h
View File

@@ -237,10 +237,7 @@ struct ttm_buffer_object {
struct list_head io_reserve_lru;
/**
* Members protected by struct buffer_object_device::fence_lock
* In addition, setting sync_obj to anything else
* than NULL requires bo::reserved to be held. This allows for
* checking NULL while reserved but not holding the mentioned lock.
* Members protected by a bo reservation.
*/
void *sync_obj;

3
include/drm/ttm/ttm_bo_driver.h
View File

@@ -521,8 +521,6 @@ struct ttm_bo_global {
*
* @driver: Pointer to a struct ttm_bo_driver struct setup by the driver.
* @man: An array of mem_type_managers.
* @fence_lock: Protects the synchronizing members on *all* bos belonging
* to this device.
* @vma_manager: Address space manager
* lru_lock: Spinlock that protects the buffer+device lru lists and
* ddestroy lists.
@@ -542,7 +540,6 @@ struct ttm_bo_device {
struct ttm_bo_global *glob;
struct ttm_bo_driver *driver;
struct ttm_mem_type_manager man[TTM_NUM_MEM_TYPES];
spinlock_t fence_lock;
/*
* Protected by internal locks.