On Thu, Jul 14, 2011 at 08:53:31PM -0600, Grant Likely wrote: > > + u8 null_dma_buf_unaligned[16]; > > Don't dma buffers need to be cache-line aligned? How large is the > actual transfer? Using the __aligned() or __cacheline_aligned > attribute is the correct way to make sure you've got a data buffer > that can be used for DMA mixed with other stuff. Then you don't need > to fool around with PTR_ALIGN or anything.
Err, did you not read the whole patch? > > + drv_data->null_dma_buf = > > + (u32 *)PTR_ALIGN(&drv_data->null_dma_buf_unaligned, 8); ------------------------------------------------------------------------------ AppSumo Presents a FREE Video for the SourceForge Community by Eric Ries, the creator of the Lean Startup Methodology on "Lean Startup Secrets Revealed." This video shows you how to validate your ideas, optimize your ideas and identify your business strategy. http://p.sf.net/sfu/appsumosfdev2dev _______________________________________________ spi-devel-general mailing list spi-devel-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/spi-devel-general
