Re: [PATCH RESEND v2 1/1] ARM Feroceon: fix kexec by setting outer_cache.inv_all

[Elijah Ragozin]

On 10.04.2013 19:48, Jason Cooper wrote:
> On Mon, Apr 08, 2013 at 10:34:07PM +0300, Elijah Ragozin wrote:
> > On Feroceon the L2 cache becomes non-coherent with the CPU
> > when the L1 caches are disabled. Thus the L2 needs to be invalidated
> > after both L1 caches are disabled.
> >
> > On kexec before the starting the code for relocation the kernel,
> > the L1 caches are disabled in cpu_froc_fin (cpu_v7_proc_fin for Feroceon),
> > but after L2 cache is never invalidated, because inv_all is not set
> > in cache-feroceon-l2.c.
> > So kernel relocation and decompression may has (and usually has) errors.
> > Setting the function enables L2 invalidation and fixes the issue.
> >
> > Signed-off-by: Illia Ragozin <illia.ragozin@xxxxxxxxxxxx>
> > ---
> >   arch/arm/mm/cache-feroceon-l2.c | 1 +
> >   1 file changed, 1 insertion(+)
> fwiw,
>
> Acked-by: Jason Cooper <jason@xxxxxxxxxxxxxx>
>
> Please put this in Russell King's patch tracker so he can pull it in.
>
> thx,
>
> Jason.

Jason,

thank you for reviewing and acking,
I just put the patch to the Russell King's patch tracker.

--
Best Regards,
Illia Ragozin.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/