lkml.org 
[lkml]   [2019]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 5/9] iommu/amd: Implement .flush_np_cache
This is a cut and paste from the current amd_iommu driver. I really
have no idea if it's a good idea or not. It looks like
joerg.roedel@amd.com might be the person to ask.

@Joerg Roedel should we keep this?

On Mon, Apr 15, 2019 at 7:33 AM Christoph Hellwig <hch@infradead.org> wrote:
>
> > +static void amd_iommu_flush_np_cache(struct iommu_domain *domain,
> > + unsigned long iova, size_t size)
> > +{
> > + struct protection_domain *dom = to_pdomain(domain);
> > +
> > + if (unlikely(amd_iommu_np_cache)) {
>
> Is this case really so unlikely that it needs a static branch prediction
> hint?

\
 
 \ /
  Last update: 2019-04-15 20:18    [W:0.051 / U:1.404 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site