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Revert "drm/ttm: add a way to bo_wait for either the last read or last write"

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This reverts commit dfadbbdb57.

Further upstream discussion between Marek and Thomas decided this wasn't
fully baked and needed further work, so revert it before it hits mainline.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2011-10-27 18:28:37 +02:00
parent 83f30d0e03
commit 1717c0e23f
12 changed files with 40 additions and 140 deletions
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16
include/drm/ttm/ttm_bo_api.h
View File

@@ -44,11 +44,6 @@ struct ttm_bo_device;
struct drm_mm_node;
enum ttm_buffer_usage {
TTM_USAGE_READ = 1,
TTM_USAGE_WRITE = 2,
TTM_USAGE_READWRITE = TTM_USAGE_READ | TTM_USAGE_WRITE
};
/**
* struct ttm_placement
@@ -179,10 +174,7 @@ struct ttm_tt;
* the bo_device::lru_lock.
* @reserved: Deadlock-free lock used for synchronization state transitions.
* @sync_obj_arg: Opaque argument to synchronization object function.
* @sync_obj: Pointer to a synchronization object of a last read or write,
* whichever is later.
* @sync_obj_read: Pointer to a synchronization object of a last read.
* @sync_obj_write: Pointer to a synchronization object of a last write.
* @sync_obj: Pointer to a synchronization object.
* @priv_flags: Flags describing buffer object internal state.
* @vm_rb: Rb node for the vm rb tree.
* @vm_node: Address space manager node.
@@ -266,8 +258,6 @@ struct ttm_buffer_object {
void *sync_obj_arg;
void *sync_obj;
void *sync_obj_read;
void *sync_obj_write;
unsigned long priv_flags;
/**
@@ -335,7 +325,6 @@ ttm_bo_reference(struct ttm_buffer_object *bo)
* @bo: The buffer object.
* @interruptible: Use interruptible wait.
* @no_wait: Return immediately if buffer is busy.
* @usage: Whether to wait for the last read and/or the last write.
*
* This function must be called with the bo::mutex held, and makes
* sure any previous rendering to the buffer is completed.
@@ -345,8 +334,7 @@ ttm_bo_reference(struct ttm_buffer_object *bo)
* Returns -ERESTARTSYS if interrupted by a signal.
*/
extern int ttm_bo_wait(struct ttm_buffer_object *bo, bool lazy,
bool interruptible, bool no_wait,
enum ttm_buffer_usage usage);
bool interruptible, bool no_wait);
/**
* ttm_bo_validate
*

6
include/drm/ttm/ttm_execbuf_util.h
View File

@@ -41,26 +41,20 @@
* @bo: refcounted buffer object pointer.
* @new_sync_obj_arg: New sync_obj_arg for @bo, to be used once
* adding a new sync object.
* @usage Indicates how @bo is used by the device.
* @reserved: Indicates whether @bo has been reserved for validation.
* @removed: Indicates whether @bo has been removed from lru lists.
* @put_count: Number of outstanding references on bo::list_kref.
* @old_sync_obj: Pointer to a sync object about to be unreferenced
* @old_sync_obj_read: Pointer to a read sync object about to be unreferenced.
* @old_sync_obj_write: Pointer to a write sync object about to be unreferenced.
*/
struct ttm_validate_buffer {
struct list_head head;
struct ttm_buffer_object *bo;
void *new_sync_obj_arg;
enum ttm_buffer_usage usage;
bool reserved;
bool removed;
int put_count;
void *old_sync_obj;
void *old_sync_obj_read;
void *old_sync_obj_write;
};
/**