freebsd-nq/sys/dev/nand/nandsim_swap.h
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

67 lines
2.2 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (C) 2009-2012 Semihalf
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NANDSIM_SWAP_CHIP_H_
#define _NANDSIM_SWAP_CHIP_H_
struct block_space {
SLIST_ENTRY(block_space) free_link;
STAILQ_ENTRY(block_space) used_link;
struct block_state *blk_state;
uint8_t *blk_ptr;
};
#define BLOCK_ALLOCATED 0x1
#define BLOCK_SWAPPED 0x2
#define BLOCK_DIRTY 0x4
struct block_state {
struct block_space *blk_sp;
uint32_t offset;
uint8_t status;
};
struct chip_swap {
struct block_state *blk_state;
SLIST_HEAD(,block_space) free_bs;
STAILQ_HEAD(,block_space) used_bs;
struct ucred *swap_cred;
struct vnode *swap_vp;
uint32_t swap_offset;
uint32_t blk_size;
uint32_t nof_blks;
};
struct chip_swap *nandsim_swap_init(const char *, uint32_t, uint32_t);
void nandsim_swap_destroy(struct chip_swap *);
struct block_space *get_bs(struct chip_swap *, uint32_t, uint8_t);
#endif /* _NANDSIM_SWAP_CHIP_H_ */