diff options
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/include/asm/system.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h index 59efb3fef957..48c4f0335e3f 100644 --- a/arch/microblaze/include/asm/system.h +++ b/arch/microblaze/include/asm/system.h @@ -12,6 +12,7 @@ #include <asm/registers.h> #include <asm/setup.h> #include <asm/irqflags.h> +#include <asm/cache.h> #include <asm-generic/cmpxchg.h> #include <asm-generic/cmpxchg-local.h> @@ -96,4 +97,14 @@ extern struct dentry *of_debugfs_root; #define arch_align_stack(x) (x) +/* + * MicroBlaze doesn't handle unaligned accesses in hardware. + * + * Based on this we force the IP header alignment in network drivers. + * We also modify NET_SKB_PAD to be a cacheline in size, thus maintaining + * cacheline alignment of buffers. + */ +#define NET_IP_ALIGN 2 +#define NET_SKB_PAD L1_CACHE_BYTES + #endif /* _ASM_MICROBLAZE_SYSTEM_H */ |