From: Kevin Hilman <khilman@mvista.com>
Date: Thu, 8 Nov 2007 00:48:16 +0000 (+0100)
Subject: [ARM] 4644/2: fix flush_kern_tlb_range() in module space
X-Git-Tag: v2.6.24-rc3~172^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a8fa9ba623122a51efe6c9ef8fe7412c91582d48;p=pandora-kernel.git

[ARM] 4644/2: fix flush_kern_tlb_range() in module space

For kernel addresses between TASK_SIZE and PAGE_OFFSET,
flush_tlb_kern_range() does not work as would be expected.

The TLB invalidate works with a matching ASID, or on entries marked as
global.  The set_pte_at() macro marks addresses >= PAGE_OFFSET as
global, but not addresses from TASK_SIZE to PAGE_OFFSET, which are
also kernel addresses.

The result is that the entries in this range are not actually
invalidated by flush_tlb_kern_range().

This patch instead marks addresses >= TASK_SIZE as global.

Signed-off-by: Satoru Fujii <s-fujii@ct.jp.nec.com>
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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