Displaying 2 results from an estimated 2 matches for "pm_runtime_irq_saf".
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pm_runtime_irq_safe
2018 Feb 23
0
[PATCH 5/7] vga_switcheroo: Use device link for HDA controller
...ccessors you're referring to
pci_read_config_word() and friends? Those are arguably hotpaths
where we wouldn't want the overhead to check runtime PM status
everytime. They might also be called from atomic context, I'm
not sure, and the runtime PM callbacks may sleep by default
(unless pm_runtime_irq_safe() was called).
> > +static void quirk_gpu_hda(struct pci_dev *hda)
> > +{
> > + struct pci_dev *gpu = NULL;
> > +
> > + if (PCI_FUNC(hda->devfn) != 1)
> > + return;
> > +
> > + gpu = pci_get_domain_bus_and_slot(pci_domain_nr(hda->bus),
>...
2018 Feb 20
2
[PATCH 5/7] vga_switcheroo: Use device link for HDA controller
On Sun, Feb 18, 2018 at 09:38:32AM +0100, Lukas Wunner wrote:
> Back in 2013, runtime PM for GPUs with integrated HDA controller was
> introduced with commits 0d69704ae348 ("gpu/vga_switcheroo: add driver
> control power feature. (v3)") and 246efa4a072f ("snd/hda: add runtime
> suspend/resume on optimus support (v4)").
>
> Briefly, the idea was that the HDA