tree 11dc687e80edfb6c8681bcde178bcb6b962bb163
parent 70dfa3f8756afa106a468e81649bf0c1d7dbf99e
author Kevin Hilman <khilman@mvista.com> 1194482896 +0100
committer Russell King <rmk+kernel@arm.linux.org.uk> 1194516434 +0000

[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>