sq.h

 1/* SPDX-License-Identifier: GPL-2.0
 2 *
 3 * include/asm-sh/cpu-sh4/sq.h
 4 *
 5 * Copyright (C) 2001, 2002, 2003  Paul Mundt
 6 * Copyright (C) 2001, 2002  M. R. Brown
 7 */
 8#ifndef __ASM_CPU_SH4_SQ_H
 9#define __ASM_CPU_SH4_SQ_H
10
11#include <asm/addrspace.h>
12#include <asm/page.h>
13
14/*
15 * Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be
16 * mapped to any physical address space. Since data is written (and aligned)
17 * to 32-byte boundaries, we need to be sure that all allocations are aligned.
18 */
19#define SQ_SIZE                 32
20#define SQ_ALIGN_MASK           (~(SQ_SIZE - 1))
21#define SQ_ALIGN(addr)          (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
22
23#define SQ_QACR0		(P4SEG_REG_BASE  + 0x38)
24#define SQ_QACR1		(P4SEG_REG_BASE  + 0x3c)
25#define SQ_ADDRMAX              (P4SEG_STORE_QUE + 0x04000000)
26
27/* arch/sh/kernel/cpu/sh4/sq.c */
28unsigned long sq_remap(unsigned long phys, unsigned int size,
29		       const char *name, pgprot_t prot);
30void sq_unmap(unsigned long vaddr);
31void sq_flush_range(unsigned long start, unsigned int len);
32
33#endif /* __ASM_CPU_SH4_SQ_H */