[PATCH RFC 2/3] ARM: enable TTBR0/TTBR1 split in short mode

Catalin Marinas catalin.marinas at arm.com
Tue Nov 18 10:04:19 PST 2014

On Tue, Nov 18, 2014 at 03:53:19PM +0000, Konstantin Khlebnikov wrote:
> This feature was partially implemented long time ago. All cpus load
> swapper_pg_dir into TTBR1 since commit d427958a46af24f75d0017c45eadd172273bbf33
> ("ARM: 6942/1: mm: make TTBR1 always point to swapper_pg_dir on ARMv6/7").
> But TTBRx split is never been enabled in TTBCR.

I recall there is an erratum on Cortex-A9 around the use of TTBR1 and at
the time that stopped me from pushing such change.


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