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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-sh/cpu-sh4/sq.h
Linux-2.6.12-rc2v2.6.12-rc2
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!
Diffstat (limited to 'include/asm-sh/cpu-sh4/sq.h')
-rw-r--r--include/asm-sh/cpu-sh4/sq.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/include/asm-sh/cpu-sh4/sq.h b/include/asm-sh/cpu-sh4/sq.h
new file mode 100644
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+++ b/include/asm-sh/cpu-sh4/sq.h
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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
16/*
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.
20 */
21#define SQ_SIZE 32
22#define SQ_ALIGN_MASK (~(SQ_SIZE - 1))
23#define SQ_ALIGN(addr) (((addr)+SQ_SIZE-1) & SQ_ALIGN_MASK)
24
25#define SQ_QACR0 (P4SEG_REG_BASE + 0x38)
26#define SQ_QACR1 (P4SEG_REG_BASE + 0x3c)
27#define SQ_ADDRMAX (P4SEG_STORE_QUE + 0x04000000)
28
29struct sq_mapping {
30 const char *name;
31
32 unsigned long sq_addr;
33 unsigned long addr;
34 unsigned int size;
35
36 struct list_head list;
37};
38
39/* arch/sh/kernel/cpu/sh4/sq.c */
40extern struct sq_mapping *sq_remap(unsigned long phys, unsigned int size, const char *name);
41extern void sq_unmap(struct sq_mapping *map);
42
43extern void sq_clear(unsigned long addr, unsigned int len);
44extern void sq_flush(void *addr);
45extern void sq_flush_range(unsigned long start, unsigned int len);
46
47#endif /* __ASM_CPU_SH4_SQ_H */
48