Re: [Xen-devel] [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64

[Peng Fan <peng.fan@xxxxxxx>]

Ping again..

+Julien

> Subject: RE: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64
> 
> Hi Russell, Stefano
> 
> > Subject: [PATCH] arm: xen: mm: use __GPF_DMA32 for arm64
> 
> Any comments?
> 
> >
> > arm64 shares some code under arch/arm/xen, including mm.c.
> > However ZONE_DMA is removed by commit
> > ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32").
> > So to ARM64, need use __GFP_DMA32.
> >
> > Signed-off-by: Peng Fan <peng.fan@xxxxxxx>
> > ---
> >  arch/arm/xen/mm.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index
> > e1d44b903dfc..a95e76d18bf9 100644
> > --- a/arch/arm/xen/mm.c
> > +++ b/arch/arm/xen/mm.c
> > @@ -27,7 +27,7 @@ unsigned long xen_get_swiotlb_free_pages(unsigned
> int
> > order)
> >
> >     for_each_memblock(memory, reg) {
> >             if (reg->base < (phys_addr_t)0xffffffff) {
> > -                   flags |= __GFP_DMA;
> > +                   flags |= __GFP_DMA | __GFP_DMA32;
> >                     break;
> >             }
> >     }
> 
> Thanks,
> Peng.

Thanks,
Peng.

> 
> > --
> > 2.16.4


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