Re: [PATCH 3/3] PCI: Set pref for mem64 resource of pcie device

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Apr 9, 2015 at 1:54 AM, Benjamin Herrenschmidt
<benh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, 2015-04-08 at 23:26 -0500, Bjorn Helgaas wrote:
>> I'm not planning to review this until after the merge window opens,
>> but I took a quick glance, and I agree with Ben.  I don't want to add
>> a new IORESOURCE_ flag.  I think a pci_resource_compatible() helper is
>> a great idea.
>
> So the new resource flag was handy here still regardless of the
> implementation choice because otherwise, we have to do the whole tree
> walk to check for "PCI Express only path".
>
> *But*, this is a property of the device as a whole, not of the resource,
> so we could instead have a pci_dev flag established at probe time that
> indicates that the path to a given device is PCIe only.

> That way, you avoid the special resource flag alltogether.

in the assign path: pci_bus_alloc_resource() does not take dev pointer.

should we make

int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,

to

int pci_bus_alloc_resource(struct pci_bus *bus, struct pci_dev *dev,
struct resource *res,

?
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux