diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 1999-12-04 03:58:56 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 1999-12-04 03:58:56 +0000 |
| commit | 1d67e90f19a7acfd9a05dc59678e7d0c5090bd0d (patch) | |
| tree | 357efc7b93f8f5102110d20d293f41360ec212fc /arch/mips64/kernel/r4k_tlb_debug.c | |
| parent | aea27b2e18d69af87e673972246e66657b4fa274 (diff) | |
Merge with Linux 2.3.21.
Diffstat (limited to 'arch/mips64/kernel/r4k_tlb_debug.c')
| -rw-r--r-- | arch/mips64/kernel/r4k_tlb_debug.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/arch/mips64/kernel/r4k_tlb_debug.c b/arch/mips64/kernel/r4k_tlb_debug.c new file mode 100644 index 000000000..f14725189 --- /dev/null +++ b/arch/mips64/kernel/r4k_tlb_debug.c @@ -0,0 +1,90 @@ +/* $Id: r4k_tlb_debug.c,v 1.6 1999/11/23 17:12:49 ralf Exp $ + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1999 Ralf Baechle + * Copyright (C) 1999 Silicon Graphics, Inc. + */ +#include <linux/linkage.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/mm.h> +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/ptrace.h> +#include <asm/system.h> + +asmlinkage void tlb_refill_debug(struct pt_regs regs) +{ + show_regs(®s); + panic(__FUNCTION__ " called. This Does Not Happen (TM)."); +} + +asmlinkage void xtlb_refill_debug(struct pt_regs *regs) +{ + unsigned long addr; + pgd_t *pgd; + pmd_t *pmd; + pte_t *pte; + + addr = regs->cp0_badvaddr & ~((PAGE_SIZE << 1) - 1); + pgd = pgd_offset(current->active_mm, addr); + pmd = pmd_offset(pgd, addr); + pte = pte_offset(pmd, addr); + + set_entrylo0(pte_val(pte[0]) >> 6); + set_entrylo1(pte_val(pte[1]) >> 6); + __asm__ __volatile__("nop;nop;nop"); + + tlb_write_random(); +} + +asmlinkage void xtlb_mod_debug(struct pt_regs *regs) +{ + show_regs(regs); + panic(__FUNCTION__ " called."); +} + +asmlinkage void xtlb_tlbl_debug(struct pt_regs *regs) +{ + unsigned long addr; + + addr = regs->cp0_badvaddr; +#if 0 + printk(__FUNCTION__ " called.\n"); + show_regs(regs); + printk("TLB Dump:\n"); + dump_tlb_all(); + printk("c0_badvaddr = %08lx\n", addr); +#endif + do_page_fault(regs, 0, addr); + +#if 0 + printk("TLB Dump:\n"); + dump_tlb_all(); + printk("\n"); +#endif +} + +asmlinkage void xtlb_tlbs_debug(struct pt_regs *regs) +{ + unsigned long addr; + + addr = regs->cp0_badvaddr; +#if 0 + printk(__FUNCTION__ " called.\n"); + show_regs(regs); + printk("TLB Dump:\n"); + dump_tlb_all(); + printk("c0_badvaddr = %08lx\n", addr); +#endif + do_page_fault(regs, 1, addr); + +#if 0 + printk("TLB Dump:\n"); + dump_tlb_all(); + printk("\n"); +#endif +} |