On Wed, Jan 28, 2015 at 01:23:41PM +0100, Ricardo Ribalda Delgado wrote: > Instead of enabling the IRQ and disabling it for every transaction. > > Specially the small transactions (1,2 words) benefit from removing 3 bus > accesses. For this particular change I don't think it matters but in general moving things that do need to be enabled and disabled to {un,}prepare_transfer_hardware() will avoid quite a bit of overhead under load.
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