]>
Commit | Line | Data |
---|---|---|
1da177e4 LT |
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> | |
1da177e4 | 10 | |
1da177e4 | 11 | #include <asm/mipsregs.h> |
80e8bd26 | 12 | #include <asm/mmu_context.h> |
1da177e4 LT |
13 | #include <asm/page.h> |
14 | #include <asm/pgtable.h> | |
40df3831 | 15 | #include <asm/tlbdebug.h> |
1da177e4 LT |
16 | |
17 | extern int r3k_have_wired_reg; /* defined in tlb-r3k.c */ | |
18 | ||
69ed25b8 | 19 | static void dump_tlb(int first, int last) |
1da177e4 LT |
20 | { |
21 | int i; | |
22 | unsigned int asid; | |
23 | unsigned long entryhi, entrylo0; | |
24 | ||
80e8bd26 | 25 | asid = read_c0_entryhi() & ASID_MASK; |
1da177e4 LT |
26 | |
27 | for (i = first; i <= last; i++) { | |
28 | write_c0_index(i<<8); | |
29 | __asm__ __volatile__( | |
30 | ".set\tnoreorder\n\t" | |
31 | "tlbr\n\t" | |
32 | "nop\n\t" | |
33 | ".set\treorder"); | |
70342287 | 34 | entryhi = read_c0_entryhi(); |
1da177e4 LT |
35 | entrylo0 = read_c0_entrylo0(); |
36 | ||
37 | /* Unused entries have a virtual address of KSEG0. */ | |
80e8bd26 IM |
38 | if ((entryhi & PAGE_MASK) != KSEG0 |
39 | && (entryhi & ASID_MASK) == asid) { | |
1da177e4 LT |
40 | /* |
41 | * Only print entries in use | |
42 | */ | |
43 | printk("Index: %2d ", i); | |
44 | ||
45 | printk("va=%08lx asid=%08lx" | |
46 | " [pa=%06lx n=%d d=%d v=%d g=%d]", | |
80e8bd26 IM |
47 | (entryhi & PAGE_MASK), |
48 | entryhi & ASID_MASK, | |
1da177e4 LT |
49 | entrylo0 & PAGE_MASK, |
50 | (entrylo0 & (1 << 11)) ? 1 : 0, | |
51 | (entrylo0 & (1 << 10)) ? 1 : 0, | |
52 | (entrylo0 & (1 << 9)) ? 1 : 0, | |
53 | (entrylo0 & (1 << 8)) ? 1 : 0); | |
54 | } | |
55 | } | |
56 | printk("\n"); | |
57 | ||
58 | write_c0_entryhi(asid); | |
59 | } | |
60 | ||
61 | void dump_tlb_all(void) | |
62 | { | |
63 | dump_tlb(0, current_cpu_data.tlbsize - 1); | |
64 | } |