[PATCH 4/6] ARMv7: Use lazy cache flushing if hardware broadcastscache operations

[Russell King - ARM Linux]

On Mon, Mar 08, 2010 at 04:25:01PM +0000, Catalin Marinas wrote:
> Hi Russell,
> 
> On Mon, 2009-12-07 at 14:13 +0000, Catalin Marinas wrote:
> > ARMv7 processors like Cortex-A9 broadcast the cache maintenance
> > operations in hardware. The patch adds the CPU ID checks for such
> > feature and allows the flush_dcache_page/update_mmu_cache pair to work
> > in lazy flushing mode similar to the UP case.
> 
> It looks like I haven't got a final ok from you on this patch (I had the
> impression that it's in the patch system already but rebased my patches
> and found that it's not in mainline).

It needs to be updated - we have a cache_ops_need_broadcast() in
smp_plat.h now for the ptrace issues.