Commit bca7c207 authored by Paul Mundt's avatar Paul Mundt

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: default avatarPaul Mundt <lethal@linux-sh.org>
parent 9f650cf2
......@@ -174,11 +174,9 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
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;
......
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