| /* MTD backing device capabilities |
| * |
| * Copyright © 2006 Red Hat, Inc. All Rights Reserved. |
| * Written by David Howells (dhowells@redhat.com) |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| */ |
| |
| #include <linux/backing-dev.h> |
| #include <linux/mtd/mtd.h> |
| #include "internal.h" |
| |
| /* |
| * backing device capabilities for non-mappable devices (such as NAND flash) |
| * - permits private mappings, copies are taken of the data |
| */ |
| struct backing_dev_info mtd_bdi_unmappable = { |
| .capabilities = BDI_CAP_MAP_COPY, |
| }; |
| |
| /* |
| * backing device capabilities for R/O mappable devices (such as ROM) |
| * - permits private mappings, copies are taken of the data |
| * - permits non-writable shared mappings |
| */ |
| struct backing_dev_info mtd_bdi_ro_mappable = { |
| .capabilities = (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT | |
| BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP), |
| }; |
| |
| /* |
| * backing device capabilities for writable mappable devices (such as RAM) |
| * - permits private mappings, copies are taken of the data |
| * - permits non-writable shared mappings |
| */ |
| struct backing_dev_info mtd_bdi_rw_mappable = { |
| .capabilities = (BDI_CAP_MAP_COPY | BDI_CAP_MAP_DIRECT | |
| BDI_CAP_EXEC_MAP | BDI_CAP_READ_MAP | |
| BDI_CAP_WRITE_MAP), |
| }; |