On Fri, 2008-01-11 at 14:38 -0800, Eugene Surovegin wrote:
> On Sat, Jan 12, 2008 at 09:05:35AM +1100, Benjamin Herrenschmidt wrote:
> >
> > > > The s/w synchronization algorithms proposed in my patches has no LL
> > > > PLB
> > > > limitations as opposed to h/w snooping, but, probably, this i
On Sat, Jan 12, 2008 at 09:05:35AM +1100, Benjamin Herrenschmidt wrote:
>
> > > The s/w synchronization algorithms proposed in my patches has no LL PLB
> > > limitations as opposed to h/w snooping, but, probably, this is not the
> > > best
> > > way of how it might be implemented. Even though
> > The s/w synchronization algorithms proposed in my patches has no LL PLB
> > limitations as opposed to h/w snooping, but, probably, this is not the best
> > way of how it might be implemented. Even though with these patches the h/w
> > accelerated RAID starts to operate correctly (with L2-c
On Fri, Jan 11, 2008 at 06:24:46PM +0300, Yuri Tikhonov wrote:
>
> Hello, Eugene,
>
> The h/w snooping mechanism you are talking about is limited to the Low
> Latency (LL) segment of the PLB bus in ppc440sp and ppc440spe chips (see
> section "7.2.7 L2 Cache Coherency" of the ppc440spe spec),
Hello, Eugene,
The h/w snooping mechanism you are talking about is limited to the Low
Latency (LL) segment of the PLB bus in ppc440sp and ppc440spe chips (see
section "7.2.7 L2 Cache Coherency" of the ppc440spe spec), whereas DMA and
XOR engines use the High Bandwidth (HB) segment of PLB bus
On Wed, Nov 07, 2007 at 01:40:10AM +0300, Yuri Tikhonov wrote:
>
> Hello all,
>
> Here is a patch-set for support L2-cache synchronization routines for
> the ppc44x processors family. I know that the "ppc" branch is for bug-fixing
> only, thus
> the patch-set is just FYI [though enabled but no
Hello all,
Here is a patch-set for support L2-cache synchronization routines for
the ppc44x processors family. I know that the "ppc" branch is for bug-fixing
only, thus
the patch-set is just FYI [though enabled but non-coherent L2-cache may appear
as a bug for
someone who uses one of the boar
