Commit 70538eaa authored Mar 31, 2017 by Oliver O'Halloran Committed by Michael Ellerman Apr 12, 2017

powerpc/mm: Fix missing _PAGE_NON_IDEMPOTENT in pgtable dump



On Book3s we have two PTE flags used to mark cache-inhibited mappings:
_PAGE_TOLERANT and _PAGE_NON_IDEMPOTENT. Currently the kernel page table dumper
only looks at the generic _PAGE_NO_CACHE which is defined to be _PAGE_TOLERANT.
This patch modifies the dumper so both flags are shown in the dump.

Fixes: 8eb07b18 ("powerpc/mm: Dump linux pagetables")
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

parent 9c355917

arch/powerpc/mm/dump_linuxpagetables.c

+13 −0

Original line number	Diff line number	Diff line
		@@ -154,11 +154,24 @@ static const struct flag_info flag_array[] = {
		.clear = " ",
		}, {
		#endif
		#ifndef CONFIG_PPC_BOOK3S_64
		.mask = _PAGE_NO_CACHE,
		.val = _PAGE_NO_CACHE,
		.set = "no cache",
		.clear = " ",
		}, {
		#else
		.mask = _PAGE_NON_IDEMPOTENT,
		.val = _PAGE_NON_IDEMPOTENT,
		.set = "non-idempotent",
		.clear = " ",
		}, {
		.mask = _PAGE_TOLERANT,
		.val = _PAGE_TOLERANT,
		.set = "tolerant",
		.clear = " ",
		}, {
		#endif
		#ifdef CONFIG_PPC_BOOK3S_64
		.mask = H_PAGE_BUSY,
		.val = H_PAGE_BUSY,