> How do you ensure that no device can do DMA on the buffer while it's mapped > into user space in a noncoherent manner?
Why do we want to enforce that ? We provide the appropriate base service but you need to know what you are doing. In reality a lot of use cases are going to need far more than a simple kernel API could try and guess coherency rules about. -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
