Helper function to be used to invalidate all BOs CPU mappings once device is removed.
Signed-off-by: Andrey Grodzovsky andrey.grodzovsky@amd.com --- drivers/gpu/drm/ttm/ttm_bo.c | 8 ++++++-- include/drm/ttm/ttm_bo_driver.h | 7 +++++++ 2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index c5b516f..926a365 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -1750,10 +1750,14 @@ void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo) ttm_bo_unmap_virtual_locked(bo); ttm_mem_io_unlock(man); } - - EXPORT_SYMBOL(ttm_bo_unmap_virtual);
+void ttm_bo_unmap_virtual_address_space(struct ttm_bo_device *bdev) +{ + unmap_mapping_range(bdev->dev_mapping, 0, 0, 1); +} +EXPORT_SYMBOL(ttm_bo_unmap_virtual_address_space); + int ttm_bo_wait(struct ttm_buffer_object *bo, bool interruptible, bool no_wait) { diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h index c9e0fd0..39ea44f 100644 --- a/include/drm/ttm/ttm_bo_driver.h +++ b/include/drm/ttm/ttm_bo_driver.h @@ -601,6 +601,13 @@ int ttm_bo_device_init(struct ttm_bo_device *bdev, void ttm_bo_unmap_virtual(struct ttm_buffer_object *bo);
/** + * ttm_bo_unmap_virtual_address_space + * + * @bdev: tear down all the virtual mappings for this device + */ +void ttm_bo_unmap_virtual_address_space(struct ttm_bo_device *bdev); + +/** * ttm_bo_unmap_virtual * * @bo: tear down the virtual mappings for this BO