> -Original Message-
> From: Andy Shevchenko
> Sent: Tuesday, June 2, 2020 11:49 AM
> To: Stankiewicz, Piotr
> Cc: Alex Deucher ; Christian König
> ; David Zhou ; David
> Airlie ; Daniel Vetter ; amd-
> g...@lists.freedesktop.org; dri-devel ; Linux
> Kernel Mailing List
> Subject: Re: [PATCH 07/15] drm/amdgpu: use PCI_IRQ_MSI_TYPES where
> appropriate
>
> On Tue, Jun 2, 2020 at 12:24 PM Piotr Stankiewicz
> wrote:
> >
> > Seeing as there is shorthand available to use when asking for any type
> > of interrupt, or any type of message signalled interrupt, leverage it.
> >
> > Signed-off-by: Piotr Stankiewicz
> > Reviewed-by: Andy Shevchenko
> > ---
> > drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 8
> > 1 file changed, 4 insertions(+), 4 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> > index 5ed4227f304b..6dbe173a9fd4 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
> > @@ -251,11 +251,11 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
> > int nvec = pci_msix_vec_count(adev->pdev);
> > unsigned int flags;
> >
> > - if (nvec <= 0) {
> > + if (nvec > 0)
> > + flags = PCI_IRQ_MSI_TYPES;
> > + else
> > flags = PCI_IRQ_MSI;
> > - } else {
> > - flags = PCI_IRQ_MSI | PCI_IRQ_MSIX;
> > - }
> > +
> > /* we only need one vector */
> > nvec = pci_alloc_irq_vectors(adev->pdev, 1, 1, flags);
>
> I'm not sure if you have seen my last comment internally about this patch.
>
> I don't understand why we need these pci_msix_vec_count() followed by
> conditional at all.
> Perhaps we may simple drop all these and supply flag directly?
>
> But OTOH, I don't know the initial motivation, so, the above patch is
> non-intrusive and keeps original logic.
>
Sorry, I must have misunderstood or missed that comment. I am happy
to do a V2 if dropping the conditional is preferable.
> > if (nvec > 0) {
> > --
> > 2.17.2
> >
>
>
> --
> With Best Regards,
> Andy Shevchenko
BR,
Piotr Stankiewicz
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