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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2007-06-01 11:21:30 -0400
committerRalf Baechle <ralf@linux-mips.org>2007-07-10 12:32:56 -0400
commit4becef1d85a48ea4294c962c2cbacb6074f0dd58 (patch)
treebeea6b8fa8a861035385e5800ef3b2ed2301f1f2 /arch/mips/lib-32
parentf6e2373ad6148476464fc7bb2610c6450c18cd2a (diff)
[MIPS] Unify dump_tlb
Unify lib-{32,64}/dump_tlb.c into lib/dump_tlb.c and move lib-32/r3k_dump_tlb.c to lib directory. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/lib-32')
-rw-r--r--arch/mips/lib-32/Makefile18
-rw-r--r--arch/mips/lib-32/dump_tlb.c242
-rw-r--r--arch/mips/lib-32/r3k_dump_tlb.c182
3 files changed, 0 insertions, 442 deletions
diff --git a/arch/mips/lib-32/Makefile b/arch/mips/lib-32/Makefile
index 8b94d4cc5a30..7bae849e544a 100644
--- a/arch/mips/lib-32/Makefile
+++ b/arch/mips/lib-32/Makefile
@@ -3,21 +3,3 @@
3# 3#
4 4
5lib-y += watch.o 5lib-y += watch.o
6
7obj-$(CONFIG_CPU_MIPS32) += dump_tlb.o
8obj-$(CONFIG_CPU_MIPS64) += dump_tlb.o
9obj-$(CONFIG_CPU_NEVADA) += dump_tlb.o
10obj-$(CONFIG_CPU_R10000) += dump_tlb.o
11obj-$(CONFIG_CPU_R3000) += r3k_dump_tlb.o
12obj-$(CONFIG_CPU_R4300) += dump_tlb.o
13obj-$(CONFIG_CPU_R4X00) += dump_tlb.o
14obj-$(CONFIG_CPU_R5000) += dump_tlb.o
15obj-$(CONFIG_CPU_R5432) += dump_tlb.o
16obj-$(CONFIG_CPU_R6000) +=
17obj-$(CONFIG_CPU_R8000) +=
18obj-$(CONFIG_CPU_RM7000) += dump_tlb.o
19obj-$(CONFIG_CPU_RM9000) += dump_tlb.o
20obj-$(CONFIG_CPU_SB1) += dump_tlb.o
21obj-$(CONFIG_CPU_TX39XX) += r3k_dump_tlb.o
22obj-$(CONFIG_CPU_TX49XX) += dump_tlb.o
23obj-$(CONFIG_CPU_VR41XX) += dump_tlb.o
diff --git a/arch/mips/lib-32/dump_tlb.c b/arch/mips/lib-32/dump_tlb.c
deleted file mode 100644
index 6a68deb51aae..000000000000
--- a/arch/mips/lib-32/dump_tlb.c
+++ /dev/null
@@ -1,242 +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:
23 return "4kb";
24 case PM_16K:
25 return "16kb";
26 case PM_64K:
27 return "64kb";
28 case PM_256K:
29 return "256kb";
30#ifndef CONFIG_CPU_VR41XX
31 case PM_1M:
32 return "1Mb";
33 case PM_4M:
34 return "4Mb";
35 case PM_16M:
36 return "16Mb";
37 case PM_64M:
38 return "64Mb";
39 case PM_256M:
40 return "256Mb";
41#endif
42 }
43
44 return "unknown";
45}
46
47#define BARRIER() \
48 __asm__ __volatile__( \
49 ".set\tnoreorder\n\t" \
50 "nop;nop;nop;nop;nop;nop;nop\n\t" \
51 ".set\treorder");
52
53void dump_tlb(int first, int last)
54{
55 unsigned int pagemask, c0, c1, asid;
56 unsigned long long entrylo0, entrylo1;
57 unsigned long entryhi;
58 int i;
59
60 asid = read_c0_entryhi() & 0xff;
61
62 printk("\n");
63 for (i = first; i <= last; i++) {
64 write_c0_index(i);
65 BARRIER();
66 tlb_read();
67 BARRIER();
68 pagemask = read_c0_pagemask();
69 entryhi = read_c0_entryhi();
70 entrylo0 = read_c0_entrylo0();
71 entrylo1 = read_c0_entrylo1();
72
73 /* Unused entries have a virtual address in KSEG0. */
74 if ((entryhi & 0xf0000000) != 0x80000000
75 && (entryhi & 0xff) == asid) {
76 /*
77 * Only print entries in use
78 */
79 printk("Index: %2d pgmask=%s ", i, msk2str(pagemask));
80
81 c0 = (entrylo0 >> 3) & 7;
82 c1 = (entrylo1 >> 3) & 7;
83
84 printk("va=%08lx asid=%02lx\n",
85 (entryhi & 0xffffe000), (entryhi & 0xff));
86 printk("\t\t\t[pa=%08Lx c=%d d=%d v=%d g=%Ld]\n",
87 (entrylo0 << 6) & PAGE_MASK, c0,
88 (entrylo0 & 4) ? 1 : 0,
89 (entrylo0 & 2) ? 1 : 0, (entrylo0 & 1));
90 printk("\t\t\t[pa=%08Lx c=%d d=%d v=%d g=%Ld]\n",
91 (entrylo1 << 6) & PAGE_MASK, c1,
92 (entrylo1 & 4) ? 1 : 0,
93 (entrylo1 & 2) ? 1 : 0, (entrylo1 & 1));
94 printk("\n");
95 }
96 }
97
98 write_c0_entryhi(asid);
99}
100
101void dump_tlb_all(void)
102{
103 dump_tlb(0, current_cpu_data.tlbsize - 1);
104}
105
106void dump_tlb_wired(void)
107{
108 int wired;
109
110 wired = read_c0_wired();
111 printk("Wired: %d", wired);
112 dump_tlb(0, read_c0_wired());
113}
114
115void dump_tlb_addr(unsigned long addr)
116{
117 unsigned int flags, oldpid;
118 int index;
119
120 local_irq_save(flags);
121 oldpid = read_c0_entryhi() & 0xff;
122 BARRIER();
123 write_c0_entryhi((addr & PAGE_MASK) | oldpid);
124 BARRIER();
125 tlb_probe();
126 BARRIER();
127 index = read_c0_index();
128 write_c0_entryhi(oldpid);
129 local_irq_restore(flags);
130
131 if (index < 0) {
132 printk("No entry for address 0x%08lx in TLB\n", addr);
133 return;
134 }
135
136 printk("Entry %d maps address 0x%08lx\n", index, addr);
137 dump_tlb(index, index);
138}
139
140void dump_tlb_nonwired(void)
141{
142 dump_tlb(read_c0_wired(), current_cpu_data.tlbsize - 1);
143}
144
145void dump_list_process(struct task_struct *t, void *address)
146{
147 pgd_t *page_dir, *pgd;
148 pud_t *pud;
149 pmd_t *pmd;
150 pte_t *pte, page;
151 unsigned long addr, val;
152
153 addr = (unsigned long) address;
154
155 printk("Addr == %08lx\n", addr);
156 printk("task == %8p\n", t);
157 printk("task->mm == %8p\n", t->mm);
158 //printk("tasks->mm.pgd == %08x\n", (unsigned int) t->mm->pgd);
159
160 if (addr > KSEG0) {
161 page_dir = pgd_offset_k(0);
162 pgd = pgd_offset_k(addr);
163 } else if (t->mm) {
164 page_dir = pgd_offset(t->mm, 0);
165 pgd = pgd_offset(t->mm, addr);
166 } else {
167 printk("Current thread has no mm\n");
168 return;
169 }
170 printk("page_dir == %08x\n", (unsigned int) page_dir);
171 printk("pgd == %08x, ", (unsigned int) pgd);
172 pud = pud_offset(pgd, addr);
173 printk("pud == %08x, ", (unsigned int) pud);
174
175 pmd = pmd_offset(pud, addr);
176 printk("pmd == %08x, ", (unsigned int) pmd);
177
178 pte = pte_offset(pmd, addr);
179 printk("pte == %08x, ", (unsigned int) pte);
180
181 page = *pte;
182#ifdef CONFIG_64BIT_PHYS_ADDR
183 printk("page == %08Lx\n", pte_val(page));
184#else
185 printk("page == %08lx\n", pte_val(page));
186#endif
187
188 val = pte_val(page);
189 if (val & _PAGE_PRESENT)
190 printk("present ");
191 if (val & _PAGE_READ)
192 printk("read ");
193 if (val & _PAGE_WRITE)
194 printk("write ");
195 if (val & _PAGE_ACCESSED)
196 printk("accessed ");
197 if (val & _PAGE_MODIFIED)
198 printk("modified ");
199 if (val & _PAGE_R4KBUG)
200 printk("r4kbug ");
201 if (val & _PAGE_GLOBAL)
202 printk("global ");
203 if (val & _PAGE_VALID)
204 printk("valid ");
205 printk("\n");
206}
207
208void dump_list_current(void *address)
209{
210 dump_list_process(current, address);
211}
212
213unsigned int vtop(void *address)
214{
215 pgd_t *pgd;
216 pud_t *pud;
217 pmd_t *pmd;
218 pte_t *pte;
219 unsigned int addr, paddr;
220
221 addr = (unsigned long) address;
222 pgd = pgd_offset(current->mm, addr);
223 pud = pud_offset(pgd, addr);
224 pmd = pmd_offset(pud, addr);
225 pte = pte_offset(pmd, addr);
226 paddr = (KSEG1 | (unsigned int) pte_val(*pte)) & PAGE_MASK;
227 paddr |= (addr & ~PAGE_MASK);
228
229 return paddr;
230}
231
232void dump16(unsigned long *p)
233{
234 int i;
235
236 for (i = 0; i < 8; i++) {
237 printk("*%08lx == %08lx, ", (unsigned long) p, *p);
238 p++;
239 printk("*%08lx == %08lx\n", (unsigned long) p, *p);
240 p++;
241 }
242}
diff --git a/arch/mips/lib-32/r3k_dump_tlb.c b/arch/mips/lib-32/r3k_dump_tlb.c
deleted file mode 100644
index 4f2cb74f0766..000000000000
--- a/arch/mips/lib-32/r3k_dump_tlb.c
+++ /dev/null
@@ -1,182 +0,0 @@
1/*
2 * Dump R3000 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 * Copyright (C) 1999 by Harald Koerfgen
7 */
8#include <linux/kernel.h>
9#include <linux/mm.h>
10#include <linux/sched.h>
11#include <linux/string.h>
12
13#include <asm/bootinfo.h>
14#include <asm/cachectl.h>
15#include <asm/cpu.h>
16#include <asm/mipsregs.h>
17#include <asm/page.h>
18#include <asm/pgtable.h>
19
20extern int r3k_have_wired_reg; /* defined in tlb-r3k.c */
21
22void dump_tlb(int first, int last)
23{
24 int i;
25 unsigned int asid;
26 unsigned long entryhi, entrylo0;
27
28 asid = read_c0_entryhi() & 0xfc0;
29
30 for (i = first; i <= last; i++) {
31 write_c0_index(i<<8);
32 __asm__ __volatile__(
33 ".set\tnoreorder\n\t"
34 "tlbr\n\t"
35 "nop\n\t"
36 ".set\treorder");
37 entryhi = read_c0_entryhi();
38 entrylo0 = read_c0_entrylo0();
39
40 /* Unused entries have a virtual address of KSEG0. */
41 if ((entryhi & 0xffffe000) != 0x80000000
42 && (entryhi & 0xfc0) == asid) {
43 /*
44 * Only print entries in use
45 */
46 printk("Index: %2d ", i);
47
48 printk("va=%08lx asid=%08lx"
49 " [pa=%06lx n=%d d=%d v=%d g=%d]",
50 (entryhi & 0xffffe000),
51 entryhi & 0xfc0,
52 entrylo0 & PAGE_MASK,
53 (entrylo0 & (1 << 11)) ? 1 : 0,
54 (entrylo0 & (1 << 10)) ? 1 : 0,
55 (entrylo0 & (1 << 9)) ? 1 : 0,
56 (entrylo0 & (1 << 8)) ? 1 : 0);
57 }
58 }
59 printk("\n");
60
61 write_c0_entryhi(asid);
62}
63
64void dump_tlb_all(void)
65{
66 dump_tlb(0, current_cpu_data.tlbsize - 1);
67}
68
69void dump_tlb_wired(void)
70{
71 int wired = r3k_have_wired_reg ? read_c0_wired() : 8;
72
73 printk("Wired: %d", wired);
74 dump_tlb(0, wired - 1);
75}
76
77void dump_tlb_addr(unsigned long addr)
78{
79 unsigned long flags, oldpid;
80 int index;
81
82 local_irq_save(flags);
83 oldpid = read_c0_entryhi() & 0xff;
84 write_c0_entryhi((addr & PAGE_MASK) | oldpid);
85 tlb_probe();
86 index = read_c0_index();
87 write_c0_entryhi(oldpid);
88 local_irq_restore(flags);
89
90 if (index < 0) {
91 printk("No entry for address 0x%08lx in TLB\n", addr);
92 return;
93 }
94
95 printk("Entry %d maps address 0x%08lx\n", index, addr);
96 dump_tlb(index, index);
97}
98
99void dump_tlb_nonwired(void)
100{
101 int wired = r3k_have_wired_reg ? read_c0_wired() : 8;
102 dump_tlb(wired, current_cpu_data.tlbsize - 1);
103}
104
105void dump_list_process(struct task_struct *t, void *address)
106{
107 pgd_t *page_dir, *pgd;
108 pud_t *pud;
109 pmd_t *pmd;
110 pte_t *pte, page;
111 unsigned int addr;
112 unsigned long val;
113
114 addr = (unsigned int) address;
115
116 printk("Addr == %08x\n", addr);
117 printk("tasks->mm.pgd == %08x\n", (unsigned int) t->mm->pgd);
118
119 page_dir = pgd_offset(t->mm, 0);
120 printk("page_dir == %08x\n", (unsigned int) page_dir);
121
122 pgd = pgd_offset(t->mm, addr);
123 printk("pgd == %08x, ", (unsigned int) pgd);
124
125 pud = pud_offset(pgd, addr);
126 printk("pud == %08x, ", (unsigned int) pud);
127
128 pmd = pmd_offset(pud, addr);
129 printk("pmd == %08x, ", (unsigned int) pmd);
130
131 pte = pte_offset(pmd, addr);
132 printk("pte == %08x, ", (unsigned int) pte);
133
134 page = *pte;
135 printk("page == %08x\n", (unsigned int) pte_val(page));
136
137 val = pte_val(page);
138 if (val & _PAGE_PRESENT) printk("present ");
139 if (val & _PAGE_READ) printk("read ");
140 if (val & _PAGE_WRITE) printk("write ");
141 if (val & _PAGE_ACCESSED) printk("accessed ");
142 if (val & _PAGE_MODIFIED) printk("modified ");
143 if (val & _PAGE_GLOBAL) printk("global ");
144 if (val & _PAGE_VALID) printk("valid ");
145 printk("\n");
146}
147
148void dump_list_current(void *address)
149{
150 dump_list_process(current, address);
151}
152
153unsigned int vtop(void *address)
154{
155 pgd_t *pgd;
156 pud_t *pud;
157 pmd_t *pmd;
158 pte_t *pte;
159 unsigned int addr, paddr;
160
161 addr = (unsigned long) address;
162 pgd = pgd_offset(current->mm, addr);
163 pud = pud_offset(pgd, addr);
164 pmd = pmd_offset(pud, addr);
165 pte = pte_offset(pmd, addr);
166 paddr = (KSEG1 | (unsigned int) pte_val(*pte)) & PAGE_MASK;
167 paddr |= (addr & ~PAGE_MASK);
168
169 return paddr;
170}
171
172void dump16(unsigned long *p)
173{
174 int i;
175
176 for (i = 0; i < 8; i++) {
177 printk("*%08lx == %08lx, ", (unsigned long)p, *p);
178 p++;
179 printk("*%08lx == %08lx\n", (unsigned long)p, *p);
180 p++;
181 }
182}
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