[PATCH] omap:iommu-added cache flushing operation for L2 cache

[Gupta, Ramesh]

Hi Santosh,


On Wed, Mar 2, 2011 at 6:48 AM, Santosh Shilimkar
<santosh.shilimkar at ti.com>wrote:

> Hello,
>  > -----Original Message-----
> > From: linux-omap-owner at vger.kernel.org [mailto:linux-omap-
> > owner at vger.kernel.org] On Behalf Of Fernando Guzman Lugo
> > Sent: Wednesday, March 02, 2011 1:17 AM
> > To: hiroshi.doyu at nokia.com
> > Cc: tony at atomide.com; linux at arm.linux.org.uk; linux-
> > omap at vger.kernel.org; linux-arm-kernel at lists.infradead.org; linux-
> > kernel at vger.kernel.org; Ramesh Gupta; Hari Kanigeri
> > Subject: [PATCH] omap:iommu-added cache flushing operation for L2
> > cache
> >
> > From: Ramesh Gupta <grgupta at ti.com>
> >
> > Signed-off-by: Ramesh Gupta <grgupta at ti.com>
> > Signed-off-by: Hari Kanigeri <h-kanigeri2 at ti.com>
> > ---
> >  arch/arm/plat-omap/iommu.c |   22 ++++++++--------------
> >  1 files changed, 8 insertions(+), 14 deletions(-)
> >
> > diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c
> > index e3eb038..aeb2c33 100644
> > --- a/arch/arm/plat-omap/iommu.c
> > +++ b/arch/arm/plat-omap/iommu.c
> > @@ -471,22 +471,15 @@ EXPORT_SYMBOL_GPL(foreach_iommu_device);
> >   */
> >  static void flush_iopgd_range(u32 *first, u32 *last)
> >  {
> > -     /* FIXME: L2 cache should be taken care of if it exists */
> > -     do {
> > -             asm("mcr        p15, 0, %0, c7, c10, 1 @ flush_pgd"
> > -                 : : "r" (first));
> > -             first += L1_CACHE_BYTES / sizeof(*first);
> > -     } while (first <= last);
> > +     dmac_flush_range(first, last);
>
> There is note just above this API.
>

Thank you for your comment. I agree, I will send an updated patch with
proper apis.

regards
Ramesh Gupta G
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20110302/32e35286/attachment-0001.html>