2 * include/asm-sh/cpu-sh4/sq.h
4 * Copyright (C) 2001, 2002, 2003 Paul Mundt
5 * Copyright (C) 2001, 2002 M. R. Brown
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
11 #ifndef __ASM_CPU_SH4_SQ_H
12 #define __ASM_CPU_SH4_SQ_H
14 #include <asm/addrspace.h>
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.
22 #define SQ_ALIGN_MASK (~(SQ_SIZE - 1))
23 #define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
25 #define SQ_QACR0 (P4SEG_REG_BASE + 0x38)
26 #define SQ_QACR1 (P4SEG_REG_BASE + 0x3c)
27 #define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000)
29 /* arch/sh/kernel/cpu/sh4/sq.c */
30 unsigned long sq_remap(unsigned long phys, unsigned int size,
31 const char *name, unsigned long flags);
32 void sq_unmap(unsigned long vaddr);
33 void sq_flush_range(unsigned long start, unsigned int len);
35 #endif /* __ASM_CPU_SH4_SQ_H */