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-rw-r--r--arch/blackfin/kernel/cplb-mpu/cplbinfo.c136
1 files changed, 0 insertions, 136 deletions
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c b/arch/blackfin/kernel/cplb-mpu/cplbinfo.c
deleted file mode 100644
index 822beefa3a4b..000000000000
--- a/arch/blackfin/kernel/cplb-mpu/cplbinfo.c
+++ /dev/null
@@ -1,136 +0,0 @@
1/*
2 * File: arch/blackfin/mach-common/cplbinfo.c
3 * Based on:
4 * Author: Sonic Zhang <sonic.zhang@analog.com>
5 *
6 * Created: Jan. 2005
7 * Description: Display CPLB status
8 *
9 * Modified:
10 * Copyright 2004-2006 Analog Devices Inc.
11 *
12 * Bugs: Enter bugs at http://blackfin.uclinux.org/
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, see the file COPYING, or write
26 * to the Free Software Foundation, Inc.,
27 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
28 */
29
30#include <linux/module.h>
31#include <linux/kernel.h>
32#include <linux/init.h>
33#include <linux/proc_fs.h>
34#include <linux/uaccess.h>
35
36#include <asm/current.h>
37#include <asm/system.h>
38#include <asm/cplb.h>
39#include <asm/cplbinit.h>
40#include <asm/blackfin.h>
41
42static char page_size_string_table[][4] = { "1K", "4K", "1M", "4M" };
43
44static char *cplb_print_entry(char *buf, struct cplb_entry *tbl, int switched)
45{
46 int i;
47 buf += sprintf(buf, "Index\tAddress\t\tData\tSize\tU/RD\tU/WR\tS/WR\tSwitch\n");
48 for (i = 0; i < MAX_CPLBS; i++) {
49 unsigned long data = tbl[i].data;
50 unsigned long addr = tbl[i].addr;
51 if (!(data & CPLB_VALID))
52 continue;
53
54 buf +=
55 sprintf(buf,
56 "%d\t0x%08lx\t%06lx\t%s\t%c\t%c\t%c\t%c\n",
57 i, addr, data,
58 page_size_string_table[(data & 0x30000) >> 16],
59 (data & CPLB_USER_RD) ? 'Y' : 'N',
60 (data & CPLB_USER_WR) ? 'Y' : 'N',
61 (data & CPLB_SUPV_WR) ? 'Y' : 'N',
62 i < switched ? 'N' : 'Y');
63 }
64 buf += sprintf(buf, "\n");
65
66 return buf;
67}
68
69int cplbinfo_proc_output(char *buf)
70{
71 char *p;
72
73 p = buf;
74
75 p += sprintf(p, "------------------ CPLB Information ------------------\n\n");
76
77 if (bfin_read_IMEM_CONTROL() & ENICPLB) {
78 p += sprintf(p, "Instruction CPLB entry:\n");
79 p = cplb_print_entry(p, icplb_tbl, first_switched_icplb);
80 } else
81 p += sprintf(p, "Instruction CPLB is disabled.\n\n");
82
83 if (1 || bfin_read_DMEM_CONTROL() & ENDCPLB) {
84 p += sprintf(p, "Data CPLB entry:\n");
85 p = cplb_print_entry(p, dcplb_tbl, first_switched_dcplb);
86 } else
87 p += sprintf(p, "Data CPLB is disabled.\n");
88
89 p += sprintf(p, "ICPLB miss: %d\nICPLB supervisor miss: %d\n",
90 nr_icplb_miss, nr_icplb_supv_miss);
91 p += sprintf(p, "DCPLB miss: %d\nDCPLB protection fault:%d\n",
92 nr_dcplb_miss, nr_dcplb_prot);
93 p += sprintf(p, "CPLB flushes: %d\n",
94 nr_cplb_flush);
95
96 return p - buf;
97}
98
99static int cplbinfo_read_proc(char *page, char **start, off_t off,
100 int count, int *eof, void *data)
101{
102 int len;
103
104 len = cplbinfo_proc_output(page);
105 if (len <= off + count)
106 *eof = 1;
107 *start = page + off;
108 len -= off;
109 if (len > count)
110 len = count;
111 if (len < 0)
112 len = 0;
113 return len;
114}
115
116static int __init cplbinfo_init(void)
117{
118 struct proc_dir_entry *entry;
119
120 entry = create_proc_entry("cplbinfo", 0, NULL);
121 if (!entry)
122 return -ENOMEM;
123
124 entry->read_proc = cplbinfo_read_proc;
125 entry->data = NULL;
126
127 return 0;
128}
129
130static void __exit cplbinfo_exit(void)
131{
132 remove_proc_entry("cplbinfo", NULL);
133}
134
135module_init(cplbinfo_init);
136module_exit(cplbinfo_exit);