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ttm: export functions to allow qxl do its own iomapping

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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
*