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 */ 31 unsigned long sq_remap(unsigned long phys, unsigned int size, 32 const char *name, pgprot_t prot); 33 void sq_unmap(unsigned long vaddr); 34 void sq_flush_range(unsigned long start, unsigned int len); 35 36 #endif /* __ASM_CPU_SH4_SQ_H */ 37