| /* |
| * Dump R3000 TLB for debugging purposes. |
| * |
| * Copyright (C) 1994, 1995 by Waldorf Electronics, written by Ralf Baechle. |
| * Copyright (C) 1999 by Silicon Graphics, Inc. |
| * Copyright (C) 1999 by Harald Koerfgen |
| */ |
| #include <linux/kernel.h> |
| #include <linux/mm.h> |
| |
| #include <asm/mipsregs.h> |
| #include <asm/mmu_context.h> |
| #include <asm/page.h> |
| #include <asm/pgtable.h> |
| #include <asm/tlbdebug.h> |
| |
| extern int r3k_have_wired_reg; /* defined in tlb-r3k.c */ |
| |
| static void dump_tlb(int first, int last) |
| { |
| int i; |
| unsigned int asid; |
| unsigned long entryhi, entrylo0; |
| |
| asid = read_c0_entryhi() & ASID_MASK; |
| |
| for (i = first; i <= last; i++) { |
| write_c0_index(i<<8); |
| __asm__ __volatile__( |
| ".set\tnoreorder\n\t" |
| "tlbr\n\t" |
| "nop\n\t" |
| ".set\treorder"); |
| entryhi = read_c0_entryhi(); |
| entrylo0 = read_c0_entrylo0(); |
| |
| /* Unused entries have a virtual address of KSEG0. */ |
| if ((entryhi & PAGE_MASK) != KSEG0 && |
| (entrylo0 & R3K_ENTRYLO_G || |
| (entryhi & ASID_MASK) == asid)) { |
| /* |
| * Only print entries in use |
| */ |
| printk("Index: %2d ", i); |
| |
| printk("va=%08lx asid=%08lx" |
| " [pa=%06lx n=%d d=%d v=%d g=%d]", |
| entryhi & PAGE_MASK, |
| entryhi & ASID_MASK, |
| entrylo0 & PAGE_MASK, |
| (entrylo0 & R3K_ENTRYLO_N) ? 1 : 0, |
| (entrylo0 & R3K_ENTRYLO_D) ? 1 : 0, |
| (entrylo0 & R3K_ENTRYLO_V) ? 1 : 0, |
| (entrylo0 & R3K_ENTRYLO_G) ? 1 : 0); |
| } |
| } |
| printk("\n"); |
| |
| write_c0_entryhi(asid); |
| } |
| |
| void dump_tlb_all(void) |
| { |
| dump_tlb(0, current_cpu_data.tlbsize - 1); |
| } |