14 Mar
2012
14 Mar
'12
6:41 a.m.
On Wednesday 14 March 2012 01:12:38 Eric Nelson wrote:
Most of the PPC devices seem to have values of 16 or 32 for ARCH_DMA_MINALIGN, but PPC64BRIDGE and E500MC would have a problem if their drivers don't implement a bounce buffer because PKTALIGN < ARCH_DMA_MINALIGN.
(see arch/powerpc/include/asm/cache.h)
This condition is properly tested for in fec_mxc.c.
so fix this in common code instead of hacking around it in individual drivers. seems to me that PKTALIGN should be defined to ARCH_DMA_MINALIGN and ultimately removed. -mike