On Thu, Jun 25, 2015 at 8:09 AM, Borislav Petkov wrote:
>> +void __iomem *pci_iomap_wc_range(struct pci_dev *dev,
>> + int bar,
>> + unsigned long offset,
>> + unsigned long maxlen)
>> +{
>> + resource_size_
On Wed, Jun 24, 2015 at 06:22:18PM -0700, Luis R. Rodriguez wrote:
> From: "Luis R. Rodriguez"
>
> PCI BARs tell us whether prefetching is safe, but they don't say anything
> about write combining (WC). WC changes ordering rules and allows writes to
> be collapsed, so it's not safe in general to
From: "Luis R. Rodriguez"
PCI BARs tell us whether prefetching is safe, but they don't say anything
about write combining (WC). WC changes ordering rules and allows writes to
be collapsed, so it's not safe in general to use it on a prefetchable
region.
Add pci_iomap_wc() and pci_iomap_wc_range(
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