On Mon, Nov 17, 2008 at 01:26:13AM -0600, Sonny Rao wrote:
> On Fri, Nov 07, 2008 at 04:28:29PM +1100, Paul Mackerras wrote:
> > Sonny Rao writes:
> >
> > > Fix the BSR driver to allow small BSR devices, which are limited to a
> > > single 4k space, on a 64k page kernel. Previously the driver wou
On Thu, Nov 20, 2008 at 09:54:21AM +1100, Paul Mackerras wrote:
> Sonny Rao writes:
>
> > On Wed, Nov 19, 2008 at 03:07:04PM +1100, Paul Mackerras wrote:
> > > I think we should be checking that dev->bsr_len == 4096 here.
> > >
> > > Paul.
> >
> > Well, dev->bsr_len could be 4096 or 8192
>
> Is
Sonny Rao writes:
> On Wed, Nov 19, 2008 at 03:07:04PM +1100, Paul Mackerras wrote:
> > I think we should be checking that dev->bsr_len == 4096 here.
> >
> > Paul.
>
> Well, dev->bsr_len could be 4096 or 8192
Isn't the dev->bsr_len == 8192 case the one where we'll only map 4096
bytes and theref
On Wed, Nov 19, 2008 at 03:07:04PM +1100, Paul Mackerras wrote:
> Sonny Rao writes:
>
> > - if (io_remap_pfn_range(vma, vma->vm_start, dev->bsr_addr >> PAGE_SHIFT,
> > - size, vma->vm_page_prot))
> > + /* check for the case of a small BSR device and map one 4k page for
Sonny Rao writes:
> - if (io_remap_pfn_range(vma, vma->vm_start, dev->bsr_addr >> PAGE_SHIFT,
> -size, vma->vm_page_prot))
> + /* check for the case of a small BSR device and map one 4k page for it*/
> + if (dev->bsr_len < PAGE_SIZE && size == PAGE_SIZE)
> +
On Fri, Nov 07, 2008 at 04:28:29PM +1100, Paul Mackerras wrote:
> Sonny Rao writes:
>
> > Fix the BSR driver to allow small BSR devices, which are limited to a
> > single 4k space, on a 64k page kernel. Previously the driver would
> > reject the mmap since the size was smaller than PAGESIZE (or b
On Fri, Nov 07, 2008 at 04:28:29PM +1100, Paul Mackerras wrote:
> Sonny Rao writes:
>
> > Fix the BSR driver to allow small BSR devices, which are limited to a
> > single 4k space, on a 64k page kernel. Previously the driver would
> > reject the mmap since the size was smaller than PAGESIZE (or b
Sonny Rao writes:
> Fix the BSR driver to allow small BSR devices, which are limited to a
> single 4k space, on a 64k page kernel. Previously the driver would
> reject the mmap since the size was smaller than PAGESIZE (or because
> the size was greater than the size of the device). Now, we check
