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Linux kernel mirror (for testing)
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linux
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#include <asm/page.h>
16
17/*
18 * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be
19 * mapped to any physical address space. Since data is written (and aligned)
20 * to 32-byte boundaries, we need to be sure that all allocations are aligned.
21 */
22#define SQ_SIZE 32
23#define SQ_ALIGN_MASK (~(SQ_SIZE - 1))
24#define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
25
26#define SQ_QACR0 (P4SEG_REG_BASE + 0x38)
27#define SQ_QACR1 (P4SEG_REG_BASE + 0x3c)
28#define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000)
29
30/* arch/sh/kernel/cpu/sh4/sq.c */
31unsigned long sq_remap(unsigned long phys, unsigned int size,
32 const char *name, pgprot_t prot);
33void sq_unmap(unsigned long vaddr);
34void sq_flush_range(unsigned long start, unsigned int len);
35
36#endif /* __ASM_CPU_SH4_SQ_H */