Am 21.06.20 um 08:03 schrieb Andrey Grodzovsky:
Helper function to be used to invalidate all BOs CPU mappings once device is removed.
Signed-off-by: Andrey Grodzovsky andrey.grodzovsky@amd.com
Reviewed-by: Christian König christian.koenig@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