On Wed, Aug 21, 2019 at 02:46:02PM +0200, Geert Uytterhoeven wrote: > PL310 Erratum 588369 affects PL310 cache controller revisions older than > r2p0. > > As Renesas ARM SoCs contain the following revisions: > - SH-Mobile AG5: r3p1, > - R-Mobile A1: r3p1-50rel0, > - R-Car H1: r3p2, > - RZ/A1: r3p2, > - RZ/A2: r3p3, > none of them are affected, and support for the errata can be disabled > safely. > > The EMMA Mobile EV2 documentation doesn't mention the revision of its > PL310 cache controller, so this SoC might be affected. However, the L2 > cache controller is not enabled by Linux.
If the controller is not enabled by Linux then I would think that the Errata is not needed. If that is true then I agree with this patch. Regarding making assumptions about the version of the PL310 cache controller, I suggest that we cannot assume that it is not affected without further information. > > Signed-off-by: Geert Uytterhoeven <[email protected]> > --- > arch/arm/configs/shmobile_defconfig | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/arch/arm/configs/shmobile_defconfig > b/arch/arm/configs/shmobile_defconfig > index 123821e63873dafa..95a127cbe8e6fcd7 100644 > --- a/arch/arm/configs/shmobile_defconfig > +++ b/arch/arm/configs/shmobile_defconfig > @@ -8,7 +8,6 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y > CONFIG_PERF_EVENTS=y > CONFIG_SLAB=y > CONFIG_ARCH_RENESAS=y > -CONFIG_PL310_ERRATA_588369=y > CONFIG_SMP=y > CONFIG_SCHED_MC=y > CONFIG_NR_CPUS=8 > -- > 2.17.1 >
