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
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 for
this case use remap_4k
