2 * Dump R3000 TLB for debugging purposes.
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
8 #include <linux/kernel.h>
11 #include <asm/mipsregs.h>
12 #include <asm/mmu_context.h>
14 #include <asm/pgtable.h>
15 #include <asm/tlbdebug.h>
17 extern int r3k_have_wired_reg; /* defined in tlb-r3k.c */
19 static void dump_tlb(int first, int last)
23 unsigned long entryhi, entrylo0;
25 asid = ASID_MASK(read_c0_entryhi());
27 for (i = first; i <= last; i++) {
34 entryhi = read_c0_entryhi();
35 entrylo0 = read_c0_entrylo0();
37 /* Unused entries have a virtual address of KSEG0. */
38 if ((entryhi & 0xffffe000) != 0x80000000
39 && (ASID_MASK(entryhi) == asid)) {
41 * Only print entries in use
43 printk("Index: %2d ", i);
45 printk("va=%08lx asid=%08lx"
46 " [pa=%06lx n=%d d=%d v=%d g=%d]",
47 (entryhi & 0xffffe000),
50 (entrylo0 & (1 << 11)) ? 1 : 0,
51 (entrylo0 & (1 << 10)) ? 1 : 0,
52 (entrylo0 & (1 << 9)) ? 1 : 0,
53 (entrylo0 & (1 << 8)) ? 1 : 0);
58 write_c0_entryhi(asid);
61 void dump_tlb_all(void)
63 dump_tlb(0, current_cpu_data.tlbsize - 1);