linux-kernel - Re: [PATCH] drm/nouveau/svm: Convert to use hmm_range

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Date:   Mon, 17 Jun 2019 15:54:25 -0400
From:   Jerome Glisse <jglisse@...hat.com>
To:     Souptick Joarder <jrdr.linux@...il.com>
Cc:     bskeggs@...hat.com, airlied@...ux.ie,
        Daniel Vetter <daniel@...ll.ch>, jasojgg@...pe.ca,
        dri-devel@...ts.freedesktop.org, nouveau@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/nouveau/svm: Convert to use hmm_range_fault()

On Sat, Jun 08, 2019 at 12:14:50AM +0530, Souptick Joarder wrote:
> Hi Jason,
> 
> On Tue, May 21, 2019 at 12:27 AM Souptick Joarder <jrdr.linux@...il.com> wrote:
> >
> > Convert to use hmm_range_fault().
> >
> > Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
> 
> Would you like to take it through your new hmm tree or do I
> need to resend it ?

This patch is wrong as the API is different between the two see what
is in hmm.h to see the differences between hmm_vma_fault() hmm_range_fault()
a simple rename break things.

> 
> > ---
> >  drivers/gpu/drm/nouveau/nouveau_svm.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/nouveau/nouveau_svm.c b/drivers/gpu/drm/nouveau/nouveau_svm.c
> > index 93ed43c..8d56bd6 100644
> > --- a/drivers/gpu/drm/nouveau/nouveau_svm.c
> > +++ b/drivers/gpu/drm/nouveau/nouveau_svm.c
> > @@ -649,7 +649,7 @@ struct nouveau_svmm {
> >                 range.values = nouveau_svm_pfn_values;
> >                 range.pfn_shift = NVIF_VMM_PFNMAP_V0_ADDR_SHIFT;
> >  again:
> > -               ret = hmm_vma_fault(&range, true);
> > +               ret = hmm_range_fault(&range, true);
> >                 if (ret == 0) {
> >                         mutex_lock(&svmm->mutex);
> >                         if (!hmm_vma_range_done(&range)) {
> > --
> > 1.9.1
> >