Re: [PATCH 1/2] ARM: errata 814220-B-Cache maintenance by set/way operations can execute out of order.

2019-02-13 Thread Russell King - ARM Linux admin
On Wed, Feb 13, 2019 at 10:56:12AM +0100, Benjamin Gaignard wrote: > Description: > The v7 ARM states that all cache and branch predictor maintenance operations > that do not specify an address execute, relative to each other, in program > order. However, because of this erratum, an L2 set/way cach

[PATCH 1/2] ARM: errata 814220-B-Cache maintenance by set/way operations can execute out of order.

2019-02-13 Thread Benjamin Gaignard
Description: The v7 ARM states that all cache and branch predictor maintenance operations that do not specify an address execute, relative to each other, in program order. However, because of this erratum, an L2 set/way cache maintenance operation can overtake an L1 set/way cache maintenance operat