diff options
Diffstat (limited to 'arch/mips/lib-32/dump_tlb.c')
| -rw-r--r-- | arch/mips/lib-32/dump_tlb.c | 242 |
1 files changed, 0 insertions, 242 deletions
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 @@ -/* - * Dump R4x00 TLB for debugging purposes. - * - * Copyright (C) 1994, 1995 by Waldorf Electronics, written by Ralf Baechle. - * Copyright (C) 1999 by Silicon Graphics, Inc. - */ -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/string.h> - -#include <asm/bootinfo.h> -#include <asm/cachectl.h> -#include <asm/cpu.h> -#include <asm/mipsregs.h> -#include <asm/page.h> -#include <asm/pgtable.h> - -static inline const char *msk2str(unsigned int mask) -{ - switch (mask) { - case PM_4K: - return "4kb"; - case PM_16K: - return "16kb"; - case PM_64K: - return "64kb"; - case PM_256K: - return "256kb"; -#ifndef CONFIG_CPU_VR41XX - case PM_1M: - return "1Mb"; - case PM_4M: - return "4Mb"; - case PM_16M: - return "16Mb"; - case PM_64M: - return "64Mb"; - case PM_256M: - return "256Mb"; -#endif - } - - return "unknown"; -} - -#define BARRIER() \ - __asm__ __volatile__( \ - ".set\tnoreorder\n\t" \ - "nop;nop;nop;nop;nop;nop;nop\n\t" \ - ".set\treorder"); - -void dump_tlb(int first, int last) -{ - unsigned int pagemask, c0, c1, asid; - unsigned long long entrylo0, entrylo1; - unsigned long entryhi; - int i; - - asid = read_c0_entryhi() & 0xff; - - printk("\n"); - for (i = first; i <= last; i++) { - write_c0_index(i); - BARRIER(); - tlb_read(); - BARRIER(); - pagemask = read_c0_pagemask(); - entryhi = read_c0_entryhi(); - entrylo0 = read_c0_entrylo0(); - entrylo1 = read_c0_entrylo1(); - - /* Unused entries have a virtual address in KSEG0. */ - if ((entryhi & 0xf0000000) != 0x80000000 - && (entryhi & 0xff) == asid) { - /* - * Only print entries in use - */ - printk("Index: %2d pgmask=%s ", i, msk2str(pagemask)); - - c0 = (entrylo0 >> 3) & 7; - c1 = (entrylo1 >> 3) & 7; - - printk("va=%08lx asid=%02lx\n", - (entryhi & 0xffffe000), (entryhi & 0xff)); - printk("\t\t\t[pa=%08Lx c=%d d=%d v=%d g=%Ld]\n", - (entrylo0 << 6) & PAGE_MASK, c0, - (entrylo0 & 4) ? 1 : 0, - (entrylo0 & 2) ? 1 : 0, (entrylo0 & 1)); - printk("\t\t\t[pa=%08Lx c=%d d=%d v=%d g=%Ld]\n", - (entrylo1 << 6) & PAGE_MASK, c1, - (entrylo1 & 4) ? 1 : 0, - (entrylo1 & 2) ? 1 : 0, (entrylo1 & 1)); - printk("\n"); - } - } - - write_c0_entryhi(asid); -} - -void dump_tlb_all(void) -{ - dump_tlb(0, current_cpu_data.tlbsize - 1); -} - -void dump_tlb_wired(void) -{ - int wired; - - wired = read_c0_wired(); - printk("Wired: %d", wired); - dump_tlb(0, read_c0_wired()); -} - -void dump_tlb_addr(unsigned long addr) -{ - unsigned int flags, oldpid; - int index; - - local_irq_save(flags); - oldpid = read_c0_entryhi() & 0xff; - BARRIER(); - write_c0_entryhi((addr & PAGE_MASK) | oldpid); - BARRIER(); - tlb_probe(); - BARRIER(); - index = read_c0_index(); - write_c0_entryhi(oldpid); - local_irq_restore(flags); - - if (index < 0) { - printk("No entry for address 0x%08lx in TLB\n", addr); - return; - } - - printk("Entry %d maps address 0x%08lx\n", index, addr); - dump_tlb(index, index); -} - -void dump_tlb_nonwired(void) -{ - dump_tlb(read_c0_wired(), current_cpu_data.tlbsize - 1); -} - -void dump_list_process(struct task_struct *t, void *address) -{ - pgd_t *page_dir, *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte, page; - unsigned long addr, val; - - addr = (unsigned long) address; - - printk("Addr == %08lx\n", addr); - printk("task == %8p\n", t); - printk("task->mm == %8p\n", t->mm); - //printk("tasks->mm.pgd == %08x\n", (unsigned int) t->mm->pgd); - - if (addr > KSEG0) { - page_dir = pgd_offset_k(0); - pgd = pgd_offset_k(addr); - } else if (t->mm) { - page_dir = pgd_offset(t->mm, 0); - pgd = pgd_offset(t->mm, addr); - } else { - printk("Current thread has no mm\n"); - return; - } - printk("page_dir == %08x\n", (unsigned int) page_dir); - printk("pgd == %08x, ", (unsigned int) pgd); - pud = pud_offset(pgd, addr); - printk("pud == %08x, ", (unsigned int) pud); - - pmd = pmd_offset(pud, addr); - printk("pmd == %08x, ", (unsigned int) pmd); - - pte = pte_offset(pmd, addr); - printk("pte == %08x, ", (unsigned int) pte); - - page = *pte; -#ifdef CONFIG_64BIT_PHYS_ADDR - printk("page == %08Lx\n", pte_val(page)); -#else - printk("page == %08lx\n", pte_val(page)); -#endif - - val = pte_val(page); - if (val & _PAGE_PRESENT) - printk("present "); - if (val & _PAGE_READ) - printk("read "); - if (val & _PAGE_WRITE) - printk("write "); - if (val & _PAGE_ACCESSED) - printk("accessed "); - if (val & _PAGE_MODIFIED) - printk("modified "); - if (val & _PAGE_R4KBUG) - printk("r4kbug "); - if (val & _PAGE_GLOBAL) - printk("global "); - if (val & _PAGE_VALID) - printk("valid "); - printk("\n"); -} - -void dump_list_current(void *address) -{ - dump_list_process(current, address); -} - -unsigned int vtop(void *address) -{ - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned int addr, paddr; - - addr = (unsigned long) address; - pgd = pgd_offset(current->mm, addr); - pud = pud_offset(pgd, addr); - pmd = pmd_offset(pud, addr); - pte = pte_offset(pmd, addr); - paddr = (KSEG1 | (unsigned int) pte_val(*pte)) & PAGE_MASK; - paddr |= (addr & ~PAGE_MASK); - - return paddr; -} - -void dump16(unsigned long *p) -{ - int i; - - for (i = 0; i < 8; i++) { - printk("*%08lx == %08lx, ", (unsigned long) p, *p); - p++; - printk("*%08lx == %08lx\n", (unsigned long) p, *p); - p++; - } -} |