linux-omap.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Tony Lindgren <tony@atomide.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-omap@vger.kernel.org
Subject: [PATCH 3/5] arm: Flush TLB entries in setup_mm_for_reboot()
Date: Fri, 18 Dec 2009 19:46:19 -0800	[thread overview]
Message-ID: <20091219034619.26198.58992.stgit@localhost> (raw)
In-Reply-To: <20091219034151.26198.26570.stgit@localhost>

We need to do that if we tinker with the MMU entries.

This fixes the occasional bug with kexec where the new
fails to uncompress with "crc error". Most likely at
least kexec on v6 and v7 need this fix.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mm/mmu.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 8c7fbd1..a2802ea 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1068,4 +1068,7 @@ void setup_mm_for_reboot(char mode)
 		pmd[1] = __pmd(pmdval + (1 << (PGDIR_SHIFT - 1)));
 		flush_pmd_entry(pmd);
 	}
+
+	local_flush_tlb_all();
+	flush_cache_all();
 }


  parent reply	other threads:[~2009-12-19  3:46 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-19  3:45 [PATCH 0/5] V7/Cortex/omap34xx fixes for 2.6.33-rc1: DCC, kexec, atags Tony Lindgren
2009-12-19  3:45 ` [PATCH 1/5] arm: Fix DCC console for v7 Tony Lindgren
2009-12-19  3:46 ` [PATCH 2/5] arm: Fix cpu_proc_fin() for proc-v7.S and make kexec work Tony Lindgren
2009-12-19  3:46 ` Tony Lindgren [this message]
2009-12-19  9:06   ` [PATCH 3/5] arm: Flush TLB entries in setup_mm_for_reboot() Russell King - ARM Linux
2009-12-19 17:54     ` Tony Lindgren
2009-12-19 18:10       ` Tony Lindgren
2009-12-19  3:46 ` [PATCH 4/5] arm: Fix init_atags_procfs() to check tag->hdr.size Tony Lindgren
2009-12-19  9:03   ` Russell King - ARM Linux
2009-12-19 17:44     ` Tony Lindgren
2009-12-19 18:44       ` Tony Lindgren
2009-12-19  3:46 ` [PATCH 5/5] arm: Fix typo in cacheflush.h and remove unnecessary comments Tony Lindgren
2009-12-19  5:07 ` [PATCH 0/5] V7/Cortex/omap34xx fixes for 2.6.33-rc1: DCC, kexec, atags Tony Lindgren
2009-12-28  5:55 ` Magnus Damm
2009-12-29 22:07   ` Tony Lindgren
2010-01-05  9:24     ` Magnus Damm
2010-01-05 11:36     ` Mika Westerberg
2010-01-05 17:14       ` Tony Lindgren
2010-01-05 17:54     ` Paul Walmsley
2010-01-05 20:43       ` Tony Lindgren
2010-01-08 22:32       ` Woodruff, Richard

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20091219034619.26198.58992.stgit@localhost \
    --to=tony@atomide.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-omap@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).