From: Max Filippov <jcmvbkbc@gmail.com>
Date: Mon, 21 Jul 2014 00:24:40 +0000 (+0400)
Subject: xtensa: support highmem in aliasing cache flushing code
X-Git-Tag: omap-fixes-against-v3.17-rc3~14^2^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=270eec76de2557c9df01d74bc4c948d0924fc007;p=pandora-kernel.git

xtensa: support highmem in aliasing cache flushing code

Use __flush_invalidate_dcache_page_alias with alias set to color of the
page physical address instead of __flush_invalidate_dcache_page: this
works for high memory pages and mapping/unmapping to the TLBTEMP area is
virtually free.

Allow building configurations with aliasing cache and highmem enabled.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
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