On Tue, 2017-04-04 at 16:36 -0500, Bjorn Helgaas wrote:
> > --- a/arch/xtensa/kernel/pci.c
> > +++ b/arch/xtensa/kernel/pci.c
> > @@ -345,7 +345,7 @@ __pci_mmap_set_pgprot(struct pci_dev *dev, struct
> > vm_area_struct *vma,
> >
> > /* Set to write-through */
> > prot = (prot &
On Tue, 2017-04-04 at 16:36 -0500, Bjorn Helgaas wrote:
> > --- a/arch/xtensa/kernel/pci.c
> > +++ b/arch/xtensa/kernel/pci.c
> > @@ -345,7 +345,7 @@ __pci_mmap_set_pgprot(struct pci_dev *dev, struct
> > vm_area_struct *vma,
> >
> > /* Set to write-through */
> > prot = (prot &
On Wed, Mar 22, 2017 at 01:25:18PM +, David Woodhouse wrote:
> From: David Woodhouse
>
> Most of the almost-identical versions of pci_mmap_page_range() silently
> ignore the 'write_combine' argument and give uncached mappings.
>
> Yet we allow the PCIIOC_WRITE_COMBINE
On Wed, Mar 22, 2017 at 01:25:18PM +, David Woodhouse wrote:
> From: David Woodhouse
>
> Most of the almost-identical versions of pci_mmap_page_range() silently
> ignore the 'write_combine' argument and give uncached mappings.
>
> Yet we allow the PCIIOC_WRITE_COMBINE ioctl in
From: David Woodhouse
Most of the almost-identical versions of pci_mmap_page_range() silently
ignore the 'write_combine' argument and give uncached mappings.
Yet we allow the PCIIOC_WRITE_COMBINE ioctl in /proc/bus/pci, expose the
'resourceX_wc' file in sysfs, and allow an
From: David Woodhouse
Most of the almost-identical versions of pci_mmap_page_range() silently
ignore the 'write_combine' argument and give uncached mappings.
Yet we allow the PCIIOC_WRITE_COMBINE ioctl in /proc/bus/pci, expose the
'resourceX_wc' file in sysfs, and allow an attempted mapping to
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