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ttm: export functions to allow qxl do its own iomapping 

qxl wants to use io mapping like i915 gem does, for now
just export the symbols so the driver can implement atomic
page maps using io mapping.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2013-01-22 13:56:04 +10:00 committed by Dave Airlie
parent 97d103311a
commit afe6804c04
2 changed files with 13 additions and 4 deletions
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13
drivers/gpu/drm/ttm/ttm_bo_util.c
View File

@ -86,6 +86,7 @@ int ttm_mem_io_lock(struct ttm_mem_type_manager *man, bool interruptible)
mutex_lock(&man->io_reserve_mutex);
return 0;
}
EXPORT_SYMBOL(ttm_mem_io_lock);
void ttm_mem_io_unlock(struct ttm_mem_type_manager *man)
{
@ -94,6 +95,7 @@ void ttm_mem_io_unlock(struct ttm_mem_type_manager *man)
mutex_unlock(&man->io_reserve_mutex);
}
EXPORT_SYMBOL(ttm_mem_io_unlock);
static int ttm_mem_io_evict(struct ttm_mem_type_manager *man)
{
@ -111,8 +113,9 @@ static int ttm_mem_io_evict(struct ttm_mem_type_manager *man)
return 0;
}
static int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
{
struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
int ret = 0;
@ -134,9 +137,10 @@ retry:
}
return ret;
}
EXPORT_SYMBOL(ttm_mem_io_reserve);
static void ttm_mem_io_free(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
void ttm_mem_io_free(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem)
{
struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
@ -149,6 +153,7 @@ static void ttm_mem_io_free(struct ttm_bo_device *bdev,
bdev->driver->io_mem_free(bdev, mem);
}
EXPORT_SYMBOL(ttm_mem_io_free);
int ttm_mem_io_reserve_vm(struct ttm_buffer_object *bo)
{

4
include/drm/ttm/ttm_bo_driver.h
View File

@ -902,6 +902,10 @@ extern void ttm_bo_unreserve_locked(struct ttm_buffer_object *bo);
* ttm_bo_util.c
*/
int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem);
void ttm_mem_io_free(struct ttm_bo_device *bdev,
struct ttm_mem_reg *mem);
/**
* ttm_bo_move_ttm
*