mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 14:30:50 +00:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
|
|
* include/asm-sh/cpu-sh4/sq.h
|
|
*
|
|
* Copyright (C) 2001, 2002, 2003 Paul Mundt
|
|
* Copyright (C) 2001, 2002 M. R. Brown
|
|
*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*/
|
|
#ifndef __ASM_CPU_SH4_SQ_H
|
|
#define __ASM_CPU_SH4_SQ_H
|
|
|
|
#include <asm/addrspace.h>
|
|
|
|
/*
|
|
* Store queues range from e0000000-e3fffffc, allowing approx. 64MB to be
|
|
* mapped to any physical address space. Since data is written (and aligned)
|
|
* to 32-byte boundaries, we need to be sure that all allocations are aligned.
|
|
*/
|
|
#define SQ_SIZE 32
|
|
#define SQ_ALIGN_MASK (~(SQ_SIZE - 1))
|
|
#define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
|
|
|
|
#define SQ_QACR0 (P4SEG_REG_BASE + 0x38)
|
|
#define SQ_QACR1 (P4SEG_REG_BASE + 0x3c)
|
|
#define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000)
|
|
|
|
struct sq_mapping {
|
|
const char *name;
|
|
|
|
unsigned long sq_addr;
|
|
unsigned long addr;
|
|
unsigned int size;
|
|
|
|
struct list_head list;
|
|
};
|
|
|
|
/* arch/sh/kernel/cpu/sh4/sq.c */
|
|
extern struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name);
|
|
extern void sq_unmap(struct sq_mapping *map);
|
|
|
|
extern void sq_clear(unsigned long addr, unsigned int len);
|
|
extern void sq_flush(void *addr);
|
|
extern void sq_flush_range(unsigned long start, unsigned int len);
|
|
|
|
#endif /* __ASM_CPU_SH4_SQ_H */
|
|
|