Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

1 files changed, 65 insertions, 41 deletions

diff --git a/arch/mips/lib-32/dump_tlb.c b/arch/mips/lib-32/dump_tlb.c
index 019ac8f005d..46519f4331e 100644
--- a/arch/mips/lib-32/dump_tlb.c
+++ b/arch/mips/lib-32/dump_tlb.c
@@ -20,16 +20,25 @@
 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";
+	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";
+	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
 	}
 
@@ -47,7 +56,7 @@ void dump_tlb(int first, int last)
 	unsigned int pagemask, c0, c1, asid;
 	unsigned long long entrylo0, entrylo1;
 	unsigned long entryhi;
-	int	i;
+	int i;
 
 	asid = read_c0_entryhi() & 0xff;
 
@@ -58,7 +67,7 @@ void dump_tlb(int first, int last)
 		tlb_read();
 		BARRIER();
 		pagemask = read_c0_pagemask();
-		entryhi  = read_c0_entryhi();
+		entryhi = read_c0_entryhi();
 		entrylo0 = read_c0_entrylo0();
 		entrylo1 = read_c0_entrylo1();
 
@@ -78,13 +87,11 @@ void dump_tlb(int first, int last)
 			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));
+			       (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));
+			       (entrylo1 & 2) ? 1 : 0, (entrylo1 & 1));
 			printk("\n");
 		}
 	}
@@ -99,7 +106,7 @@ void dump_tlb_all(void)
 
 void dump_tlb_wired(void)
 {
-	int	wired;
+	int wired;
 
 	wired = read_c0_wired();
 	printk("Wired: %d", wired);
@@ -138,9 +145,10 @@ void dump_tlb_nonwired(void)
 
 void dump_list_process(struct task_struct *t, void *address)
 {
-	pgd_t	*page_dir, *pgd;
-	pmd_t	*pmd;
-	pte_t	*pte, page;
+	pgd_t *page_dir, *pgd;
+	pud_t *pud;
+	pmd_t *pmd;
+	pte_t *pte, page;
 	unsigned long addr, val;
 
 	addr = (unsigned long) address;
@@ -152,21 +160,27 @@ void dump_list_process(struct task_struct *t, void *address)
 
 	if (addr > KSEG0)
 		page_dir = pgd_offset_k(0);
-	else
+	else if (t->mm) {
 		page_dir = pgd_offset(t->mm, 0);
-	printk("page_dir == %08x\n", (unsigned int) page_dir);
+		printk("page_dir == %08x\n", (unsigned int) page_dir);
+	} else
+		printk("Current thread has no mm\n");
 
 	if (addr > KSEG0)
 		pgd = pgd_offset_k(addr);
-	else
+	else if (t->mm) {
 		pgd = pgd_offset(t->mm, addr);
-	printk("pgd == %08x, ", (unsigned int) pgd);
+		printk("pgd == %08x, ", (unsigned int) pgd);
+		pud = pud_offset(pgd, addr);
+		printk("pud == %08x, ", (unsigned int) pud);
 
-	pmd = pmd_offset(pgd, addr);
-	printk("pmd == %08x, ", (unsigned int) pmd);
+		pmd = pmd_offset(pud, addr);
+		printk("pmd == %08x, ", (unsigned int) pmd);
 
-	pte = pte_offset(pmd, addr);
-	printk("pte == %08x, ", (unsigned int) pte);
+		pte = pte_offset(pmd, addr);
+		printk("pte == %08x, ", (unsigned int) pte);
+	} else
+		printk("Current thread has no mm\n");
 
 	page = *pte;
 #ifdef CONFIG_64BIT_PHYS_ADDR
@@ -176,14 +190,22 @@ void dump_list_process(struct task_struct *t, void *address)
 #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 ");
+	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");
 }
 
@@ -194,14 +216,16 @@ void dump_list_current(void *address)
 
 unsigned int vtop(void *address)
 {
-	pgd_t	*pgd;
-	pmd_t	*pmd;
-	pte_t	*pte;
+	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);
-	pmd = pmd_offset(pgd, 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);
@@ -214,9 +238,9 @@ void dump16(unsigned long *p)
 	int i;
 
 	for (i = 0; i < 8; i++) {
-		printk("*%08lx == %08lx, ", (unsigned long)p, *p);
+		printk("*%08lx == %08lx, ", (unsigned long) p, *p);
 		p++;
-		printk("*%08lx == %08lx\n", (unsigned long)p, *p);
+		printk("*%08lx == %08lx\n", (unsigned long) p, *p);
 		p++;
 	}
 }