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sh: Get the PGD right in oops case with 64-bit PTEs. 

Previously this was using a static pgd shift in the reporting
code, simply flip this to PGDIR_SHIFT which does the right
thing depending on varying PTE magnitudes on the SH-X2 MMU.

While we're at it, and since it's been recently added, use
get_TTB() for fetching the TTB, rather than the open coded
instructions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2006-12-01 12:14:11 +09:00
parent 9f650cf2b8
commit bca7c20764
1 changed files with 2 additions and 4 deletions
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6
arch/sh/mm/fault.c
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@ -174,11 +174,9 @@ no_context:
printk(KERN_ALERT "Unable to handle kernel paging request");
printk(" at virtual address %08lx\n", address);
printk(KERN_ALERT "pc = %08lx\n", regs->pc);
asm volatile("mov.l %1, %0"
: "=r" (page)
: "m" (__m(MMU_TTB)));
page = (unsigned long)get_TTB();
if (page) {
page = ((unsigned long *) page)[address >> 22];
page = ((unsigned long *) page)[address >> PGDIR_SHIFT];
printk(KERN_ALERT "*pde = %08lx\n", page);
if (page & _PAGE_PRESENT) {
page &= PAGE_MASK;