diff options
Diffstat (limited to 'drivers/staging/media/atomisp/pci/ia_css_mmu.h')
-rw-r--r-- | drivers/staging/media/atomisp/pci/ia_css_mmu.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/staging/media/atomisp/pci/ia_css_mmu.h b/drivers/staging/media/atomisp/pci/ia_css_mmu.h new file mode 100644 index 0000000000..8f04d196c6 --- /dev/null +++ b/drivers/staging/media/atomisp/pci/ia_css_mmu.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Support for Intel Camera Imaging ISP subsystem. + * Copyright (c) 2015, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#ifndef __IA_CSS_MMU_H +#define __IA_CSS_MMU_H + +/* @file + * This file contains one support function for invalidating the CSS MMU cache + */ + +/* @brief Invalidate the MMU internal cache. + * @return None + * + * This function triggers an invalidation of the translate-look-aside + * buffer (TLB) that's inside the CSS MMU. This function should be called + * every time the page tables used by the MMU change. + */ +void +ia_css_mmu_invalidate_cache(void); + +#endif /* __IA_CSS_MMU_H */ |