Messages in this thread | | | Date | Tue, 29 Jun 2010 10:08:10 -0400 | Subject | Re: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN | From | Matt Turner <> |
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On Tue, Jun 29, 2010 at 10:07 AM, Matt Turner <mattst88@gmail.com> wrote: > On Tue, Jun 29, 2010 at 2:50 AM, FUJITA Tomonori > <fujita.tomonori@lab.ntt.co.jp> wrote: >> This is a resend: >> >> http://marc.info/?t=127432584100006&r=1&w=2 >> >> I thought that it was merged but seems that it was lost somewhere? >> >> = >> From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> >> Subject: [PATCH] parisc: set ARCH_KMALLOC_MINALIGN >> >> Architectures that handle DMA-non-coherent memory need to set >> ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: >> the buffer doesn't share a cache with the others. >> >> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> >> Cc: Kyle McMartin <kyle@mcmartin.ca> >> Cc: Helge Deller <deller@gmx.de> >> Cc: James E.J. Bottomley <jejb@parisc-linux.org> >> Cc: stable@kernel.org >> --- >> arch/parisc/include/asm/cache.h | 2 ++ >> 1 files changed, 2 insertions(+), 0 deletions(-) >> >> diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h >> index 45effe6..5d87f27 100644 >> --- a/arch/parisc/include/asm/cache.h >> +++ b/arch/parisc/include/asm/cache.h >> @@ -22,6 +22,8 @@ >> #define L1_CACHE_SHIFT 5 >> #endif >> >> +#define ARCH_KMALLOC_MINALIGN L1_CACHE_BYTES >> + >> #ifndef __ASSEMBLY__ >> >> #define L1_CACHE_ALIGN(x) (((x)+(L1_CACHE_BYTES-1))&~(L1_CACHE_BYTES-1)) > > Looks like you can send a patch to kill L1_CACHE_ALIGN too. :)
Doh! I see you already did.
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