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.rago...@grapecom.com> > --- > arch/arm/mm/cache-feroceon-l2.c | 1 + > 1 file changed, 1 insertion(+)
fwiw, Acked-by: Jason Cooper <ja...@lakedaemon.net> Please put this in Russell King's patch tracker so he can pull it in. thx, Jason. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
