Sascha Hauer writes:
>> So you can drop this stack push by using r12 instead of r10. That's fine
>> I think, but should be a patch of its own. Can you resend this as two
>> patches?
>
> Oh, I just saw you can't since then r12 would be corrupted when
> v7_mmu_cache_flush is called from v7_mmu_cach
On Wed, May 15, 2013 at 08:28:11AM +0200, Sascha Hauer wrote:
> Hi Enrico,
>
> On Tue, May 14, 2013 at 03:14:54PM +0200, Enrico Scholz wrote:
> > Although conclusions in 50d1b2de8ea0f3b8d89fe3a97ce64315996ed4cb "ARM
> > v7: Fix register corruption in v7_mmu_cache_off" are correct, the
> > implemen
Hi Enrico,
On Tue, May 14, 2013 at 03:14:54PM +0200, Enrico Scholz wrote:
> Although conclusions in 50d1b2de8ea0f3b8d89fe3a97ce64315996ed4cb "ARM
> v7: Fix register corruption in v7_mmu_cache_off" are correct, the
> implemented fix is not complete because the following failure can
> happen:
>
> 1
Although conclusions in 50d1b2de8ea0f3b8d89fe3a97ce64315996ed4cb "ARM
v7: Fix register corruption in v7_mmu_cache_off" are correct, the
implemented fix is not complete because the following failure can
happen:
1. d-cache contains the cache line around 'sp'
2. v7_mmu_cache_off() disables cache
3.
