From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sat, 4 Apr 2015 19:09:46 +0000 (+0100)
Subject: ARM: redo TTBR setup code for LPAE
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~129^2~7^4~3
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2c3e38a5471;p=pandora-kernel.git

ARM: redo TTBR setup code for LPAE

Re-engineer the LPAE TTBR setup code.  Rather than passing some shifted
address in order to fit in a CPU register, pass either a full physical
address (in the case of r4, r5 for TTBR0) or a PFN (for TTBR1).

This removes the ARCH_PGD_SHIFT hack, and the last dangerous user of
cpu_set_ttbr() in the secondary CPU startup code path (which was there
to re-set TTBR1 to the appropriate high physical address space on
Keystone2.)

Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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