From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-x242.google.com (mail-pg0-x242.google.com [IPv6:2607:f8b0:400e:c05::242]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3vvPJw2K81zDqGw for ; Fri, 31 Mar 2017 12:38:08 +1100 (AEDT) Received: by mail-pg0-x242.google.com with SMTP id g2so13467773pge.2 for ; Thu, 30 Mar 2017 18:38:08 -0700 (PDT) From: Oliver O'Halloran To: linuxppc-dev@lists.ozlabs.org Cc: Oliver O'Halloran , Rashmica Gupta Subject: [PATCH 1/2] powerpc/mm: fix up pgtable dump flags Date: Fri, 31 Mar 2017 12:37:48 +1100 Message-Id: <20170331013749.17874-1-oohall@gmail.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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. Cc: Rashmica Gupta Signed-off-by: Oliver O'Halloran --- arch/powerpc/mm/dump_linuxpagetables.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/powerpc/mm/dump_linuxpagetables.c b/arch/powerpc/mm/dump_linuxpagetables.c index 49abaf4dc8e3..e7cbfd5a0940 100644 --- a/arch/powerpc/mm/dump_linuxpagetables.c +++ b/arch/powerpc/mm/dump_linuxpagetables.c @@ -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, -- 2.9.3