1/*
2 * include/asm-sh/cpu-sh4/sq.h
3 *
4 * Copyright (C) 2001, 2002, 2003  Paul Mundt
5 * Copyright (C) 2001, 2002  M. R. Brown
6 *
7 * This file is subject to the terms and conditions of the GNU General Public
8 * License.  See the file "COPYING" in the main directory of this archive
9 * for more details.
10 */
11#ifndef __ASM_CPU_SH4_SQ_H
12#define __ASM_CPU_SH4_SQ_H
13
14#include <asm/addrspace.h>
15
16/*
17 * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be
18 * mapped to any physical address space. Since data is written (and aligned)
19 * to 32-byte boundaries, we need to be sure that all allocations are aligned.
20 */
21#define SQ_SIZE                 32
22#define SQ_ALIGN_MASK           (~(SQ_SIZE - 1))
23#define SQ_ALIGN(addr)          (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
24
25#define SQ_QACR0		(P4SEG_REG_BASE  + 0x38)
26#define SQ_QACR1		(P4SEG_REG_BASE  + 0x3c)
27#define SQ_ADDRMAX              (P4SEG_STORE_QUE + 0x04000000)
28
29/* arch/sh/kernel/cpu/sh4/sq.c */
30unsigned long sq_remap(unsigned long phys, unsigned int size,
31		       const char *name, unsigned long flags);
32void sq_unmap(unsigned long vaddr);
33void sq_flush_range(unsigned long start, unsigned int len);
34
35#endif /* __ASM_CPU_SH4_SQ_H */
36