On Fri, 20 Feb 2009, Ira Snyder wrote:
> On Fri, Feb 20, 2009 at 03:56:39PM -0600, Matt Sealey wrote:
> > Am I correct in saying that cpu_to_le32 and le32_to_cpu are the
> > functions/macros I need to use to do byte swapping to make everything
> > go little endian (and back again when I read them b
> > Am I correct in saying that cpu_to_le32 and le32_to_cpu are the
> > functions/macros I need to use to do byte swapping to make everything
> > go little endian (and back again when I read them back in the kernel)?
> >
> > Or is there some cleverer way already implemented in the kernel?
> >
>
On Fri, Feb 20, 2009 at 03:56:39PM -0600, Matt Sealey wrote:
> On Fri, Feb 20, 2009 at 3:07 PM, Ira Snyder wrote:
> > On Fri, Feb 20, 2009 at 02:05:08PM -0600, Matt Sealey wrote:
> >> On Fri, Feb 20, 2009 at 1:11 PM, Ira Snyder wrote:
> >> > On Fri, Feb 20, 2009 at 12:57:36PM -0600, Matt Sealey w
On Fri, 2009-02-20 at 12:57 -0600, Matt Sealey wrote:
> Hi guys,
>
> What's the correct way to read from PCI address space (basically it's
> guaranteed to be non-coherent memory bar) without flipping bits like
> ioread32() does?
ioread32be() ? :-) But from what you say below, it seems the wrong
a
On Fri, Feb 20, 2009 at 3:07 PM, Ira Snyder wrote:
> On Fri, Feb 20, 2009 at 02:05:08PM -0600, Matt Sealey wrote:
>> On Fri, Feb 20, 2009 at 1:11 PM, Ira Snyder wrote:
>> > On Fri, Feb 20, 2009 at 12:57:36PM -0600, Matt Sealey wrote:
>> >
>> > I'm pretty sure memcpy_fromio() and memcpy_toio() wil
On Fri, Feb 20, 2009 at 02:05:08PM -0600, Matt Sealey wrote:
> On Fri, Feb 20, 2009 at 1:11 PM, Ira Snyder wrote:
> > On Fri, Feb 20, 2009 at 12:57:36PM -0600, Matt Sealey wrote:
> >
> > I'm pretty sure memcpy_fromio() and memcpy_toio() will get you what you
> > want. They don't change byte orderi
On Fri, Feb 20, 2009 at 1:11 PM, Ira Snyder wrote:
> On Fri, Feb 20, 2009 at 12:57:36PM -0600, Matt Sealey wrote:
>
> I'm pretty sure memcpy_fromio() and memcpy_toio() will get you what you
> want. They don't change byte ordering.
Are they guaranteed to only do 32-bit, aligned accesses?
I made s
On Fri, Feb 20, 2009 at 12:57:36PM -0600, Matt Sealey wrote:
> Hi guys,
>
> What's the correct way to read from PCI address space (basically it's
> guaranteed to be non-coherent memory bar) without flipping bits like
> ioread32() does?
>
> I need to be able to copy a bank of registers from PCI ad
Hi guys,
What's the correct way to read from PCI address space (basically it's
guaranteed to be non-coherent memory bar) without flipping bits like
ioread32() does?
I need to be able to copy a bank of registers from PCI address space
into a temporary buffer so I can compare them in userspace thro
