On 03/25/11 03:08, Catalin Marinas wrote: > Are there other scenarios (in relation with coherent DMA buffers) where > we need a DSB after writel() or before readl()? I'm not sure about use with DMA buffers - I've just been looking at these macros with respect to (non-DMA related) device accesses, since they're heavily used for this purpose as well. thanks, Steve -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html