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-rw-r--r--arch/mips/lib-64/dump_tlb.c216
1 files changed, 0 insertions, 216 deletions
diff --git a/arch/mips/lib-64/dump_tlb.c b/arch/mips/lib-64/dump_tlb.c
deleted file mode 100644
index 594df1a05ecc..000000000000
--- a/arch/mips/lib-64/dump_tlb.c
+++ /dev/null
@@ -1,216 +0,0 @@
1/*
2 * Dump R4x00 TLB for debugging purposes.
3 *
4 * Copyright (C) 1994, 1995 by Waldorf Electronics, written by Ralf Baechle.
5 * Copyright (C) 1999 by Silicon Graphics, Inc.
6 */
7#include <linux/kernel.h>
8#include <linux/mm.h>
9#include <linux/sched.h>
10#include <linux/string.h>
11
12#include <asm/bootinfo.h>
13#include <asm/cachectl.h>
14#include <asm/cpu.h>
15#include <asm/mipsregs.h>
16#include <asm/page.h>
17#include <asm/pgtable.h>
18
19static inline const char *msk2str(unsigned int mask)
20{
21 switch (mask) {
22 case PM_4K: return "4kb";
23 case PM_16K: return "16kb";
24 case PM_64K: return "64kb";
25 case PM_256K: return "256kb";
26#ifndef CONFIG_CPU_VR41XX
27 case PM_1M: return "1Mb";
28 case PM_4M: return "4Mb";
29 case PM_16M: return "16Mb";
30 case PM_64M: return "64Mb";
31 case PM_256M: return "256Mb";
32#endif
33 }
34
35 return "unknown";
36}
37
38#define BARRIER() \
39 __asm__ __volatile__( \
40 ".set\tnoreorder\n\t" \
41 "nop;nop;nop;nop;nop;nop;nop\n\t" \
42 ".set\treorder");
43
44void dump_tlb(int first, int last)
45{
46 unsigned long s_entryhi, entryhi, entrylo0, entrylo1, asid;
47 unsigned int s_index, pagemask, c0, c1, i;
48
49 s_entryhi = read_c0_entryhi();
50 s_index = read_c0_index();
51 asid = s_entryhi & 0xff;
52
53 for (i = first; i <= last; i++) {
54 write_c0_index(i);
55 BARRIER();
56 tlb_read();
57 BARRIER();
58 pagemask = read_c0_pagemask();
59 entryhi = read_c0_entryhi();
60 entrylo0 = read_c0_entrylo0();
61 entrylo1 = read_c0_entrylo1();
62
63 /* Unused entries have a virtual address of CKSEG0. */
64 if ((entryhi & ~0x1ffffUL) != CKSEG0
65 && (entryhi & 0xff) == asid) {
66 /*
67 * Only print entries in use
68 */
69 printk("Index: %2d pgmask=%s ", i, msk2str(pagemask));
70
71 c0 = (entrylo0 >> 3) & 7;
72 c1 = (entrylo1 >> 3) & 7;
73
74 printk("va=%011lx asid=%02lx\n",
75 (entryhi & ~0x1fffUL),
76 entryhi & 0xff);
77 printk("\t[pa=%011lx c=%d d=%d v=%d g=%ld] ",
78 (entrylo0 << 6) & PAGE_MASK, c0,
79 (entrylo0 & 4) ? 1 : 0,
80 (entrylo0 & 2) ? 1 : 0,
81 (entrylo0 & 1));
82 printk("[pa=%011lx c=%d d=%d v=%d g=%ld]\n",
83 (entrylo1 << 6) & PAGE_MASK, c1,
84 (entrylo1 & 4) ? 1 : 0,
85 (entrylo1 & 2) ? 1 : 0,
86 (entrylo1 & 1));
87 }
88 }
89 printk("\n");
90
91 write_c0_entryhi(s_entryhi);
92 write_c0_index(s_index);
93}
94
95void dump_tlb_all(void)
96{
97 dump_tlb(0, current_cpu_data.tlbsize - 1);
98}
99
100void dump_tlb_wired(void)
101{
102 int wired;
103
104 wired = read_c0_wired();
105 printk("Wired: %d", wired);
106 dump_tlb(0, read_c0_wired());
107}
108
109void dump_tlb_addr(unsigned long addr)
110{
111 unsigned int flags, oldpid;
112 int index;
113
114 local_irq_save(flags);
115 oldpid = read_c0_entryhi() & 0xff;
116 BARRIER();
117 write_c0_entryhi((addr & PAGE_MASK) | oldpid);
118 BARRIER();
119 tlb_probe();
120 BARRIER();
121 index = read_c0_index();
122 write_c0_entryhi(oldpid);
123 local_irq_restore(flags);
124
125 if (index < 0) {
126 printk("No entry for address 0x%08lx in TLB\n", addr);
127 return;
128 }
129
130 printk("Entry %d maps address 0x%08lx\n", index, addr);
131 dump_tlb(index, index);
132}
133
134void dump_tlb_nonwired(void)
135{
136 dump_tlb(read_c0_wired(), current_cpu_data.tlbsize - 1);
137}
138
139void dump_list_process(struct task_struct *t, void *address)
140{
141 pgd_t *page_dir, *pgd;
142 pud_t *pud;
143 pmd_t *pmd;
144 pte_t *pte, page;
145 unsigned long addr, val;
146
147 addr = (unsigned long) address;
148
149 printk("Addr == %08lx\n", addr);
150 printk("tasks->mm.pgd == %08lx\n", (unsigned long) t->mm->pgd);
151
152 page_dir = pgd_offset(t->mm, 0UL);
153 printk("page_dir == %016lx\n", (unsigned long) page_dir);
154
155 pgd = pgd_offset(t->mm, addr);
156 printk("pgd == %016lx\n", (unsigned long) pgd);
157
158 pud = pud_offset(pgd, addr);
159 printk("pud == %016lx\n", (unsigned long) pud);
160
161 pmd = pmd_offset(pud, addr);
162 printk("pmd == %016lx\n", (unsigned long) pmd);
163
164 pte = pte_offset(pmd, addr);
165 printk("pte == %016lx\n", (unsigned long) pte);
166
167 page = *pte;
168 printk("page == %08lx\n", pte_val(page));
169
170 val = pte_val(page);
171 if (val & _PAGE_PRESENT) printk("present ");
172 if (val & _PAGE_READ) printk("read ");
173 if (val & _PAGE_WRITE) printk("write ");
174 if (val & _PAGE_ACCESSED) printk("accessed ");
175 if (val & _PAGE_MODIFIED) printk("modified ");
176 if (val & _PAGE_R4KBUG) printk("r4kbug ");
177 if (val & _PAGE_GLOBAL) printk("global ");
178 if (val & _PAGE_VALID) printk("valid ");
179 printk("\n");
180}
181
182void dump_list_current(void *address)
183{
184 dump_list_process(current, address);
185}
186
187unsigned long vtop(void *address)
188{
189 pgd_t *pgd;
190 pud_t *pud;
191 pmd_t *pmd;
192 pte_t *pte;
193 unsigned long addr, paddr;
194
195 addr = (unsigned long) address;
196 pgd = pgd_offset(current->mm, addr);
197 pud = pud_offset(pgd, addr);
198 pmd = pmd_offset(pud, addr);
199 pte = pte_offset(pmd, addr);
200 paddr = (CKSEG1 | (unsigned int) pte_val(*pte)) & PAGE_MASK;
201 paddr |= (addr & ~PAGE_MASK);
202
203 return paddr;
204}
205
206void dump16(unsigned long *p)
207{
208 int i;
209
210 for (i = 0; i < 8; i++) {
211 printk("*%08lx == %08lx, ", (unsigned long)p, *p);
212 p++;
213 printk("*%08lx == %08lx\n", (unsigned long)p, *p);
214 p++;
215 }
216}
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