On 05/19/2011 09:13 PM, Benjamin Herrenschmidt wrote:
On Fri, 2011-05-20 at 12:08 +1000, Benjamin Herrenschmidt wrote:
On Thu, 2011-05-19 at 20:32 -0500, Kazutomo Yoshii wrote:
Actually DMA sends invalidate requests to the snoop unit(L2 level).
BGP SoC is a bit different from other 4x
On Thu, 2011-05-19 at 22:02 -0500, Kazutomo Yoshii wrote:
> On 05/19/2011 09:13 PM, Benjamin Herrenschmidt wrote:
> > On Fri, 2011-05-20 at 12:08 +1000, Benjamin Herrenschmidt wrote:
> >
> >> On Thu, 2011-05-19 at 20:32 -0500, Kazutomo Yoshii wrote:
> >>
> >>> Actually DMA sends invalidat
On Fri, 2011-05-20 at 12:08 +1000, Benjamin Herrenschmidt wrote:
> On Thu, 2011-05-19 at 20:32 -0500, Kazutomo Yoshii wrote:
> >
> > Actually DMA sends invalidate requests to the snoop unit(L2 level).
> > BGP SoC is a bit different from other 4xx base.
>
> Well, some other 44x also have a snoopi
On Thu, 2011-05-19 at 20:32 -0500, Kazutomo Yoshii wrote:
>
> Actually DMA sends invalidate requests to the snoop unit(L2 level).
> BGP SoC is a bit different from other 4xx base.
Well, some other 44x also have a snooping L2 (more or less), but L1 is
usually the problem.
Cheers,
Ben.
On 05/19/2011 07:36 PM, Benjamin Herrenschmidt wrote:
On Wed, 2011-05-18 at 16:24 -0500, Eric Van Hensbergen wrote:
For BGP, it is convenient for 'kmalloc' to come back with 32-byte
aligned units for torus DMA
Signed-off-by: Eric Van Hensbergen
---
arch/powerpc/include/asm/page_32.h |
On Thu, 2011-05-19 at 19:47 -0500, Eric Van Hensbergen wrote:
> On Thu, May 19, 2011 at 7:36 PM, Benjamin Herrenschmidt
> wrote:
> > On Wed, 2011-05-18 at 16:24 -0500, Eric Van Hensbergen wrote:
> >>
> >> -#ifdef CONFIG_NOT_COHERENT_CACHE
> >> +#if defined(CONFIG_NOT_COHERENT_CACHE) || defined(CON
On Thu, May 19, 2011 at 7:36 PM, Benjamin Herrenschmidt
wrote:
> On Wed, 2011-05-18 at 16:24 -0500, Eric Van Hensbergen wrote:
>>
>> -#ifdef CONFIG_NOT_COHERENT_CACHE
>> +#if defined(CONFIG_NOT_COHERENT_CACHE) || defined(CONFIG_BGP)
>> #define ARCH_DMA_MINALIGN L1_CACHE_BYTES
>> #endif
>
> Is
On Wed, 2011-05-18 at 16:24 -0500, Eric Van Hensbergen wrote:
> For BGP, it is convenient for 'kmalloc' to come back with 32-byte
> aligned units for torus DMA
>
> Signed-off-by: Eric Van Hensbergen
> ---
> arch/powerpc/include/asm/page_32.h |2 +-
> 1 files changed, 1 insertions(+), 1 delet
For BGP, it is convenient for 'kmalloc' to come back with 32-byte
aligned units for torus DMA
Signed-off-by: Eric Van Hensbergen
---
arch/powerpc/include/asm/page_32.h |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/include/asm/page_32.h
b/arch/powerpc/inc
