Re: [PATCH v3] powerpc: Add an inline function to update POWER8 HID0

On Wed, Aug 05, 2015 at 12:38:31PM +0530, Gautham R. Shenoy wrote:

Section 3.7 of Version 1.2 of the Power8 Processor User's Manual
prescribes that updates to HID0 be preceded by a SYNC instruction and
followed by an ISYNC instruction (Page 91).

Create an inline function name update_power8_hid0() which follows this
recipe and invoke it from the static split core path.

Signed-off-by: Gautham R. Shenoy <redacted>

Hi Gautham,

I've tested this on a Power 8 machine and verified that it is able to change
split modes and that when doing so the new code is used.

Reviewed-by: Sam Bobroff <redacted>
Tested-by: Sam Bobroff <redacted>