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Date: Fri, 13 Feb 2009 15:22:05 +0100
From: Patrick =?ISO-8859-15?Q?Lamaizi=E8re?= <patfbsd@davenulle.org>
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Subject: bus_dmamem_alloc() and BUS_DMA_WAITOK
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Hello,

I would like to know if it is safe to use the BUS_DMA_WAITOK flag with
bus_dmamem_alloc(), in the context of the device_attach routine? Many
drivers use BUS_DMA_NOWAIT.

I need a 32Ko buffer and on low memory my driver cannot attach
(bus_dmamem_alloc returns ENOMEM). Will BUS_DMA_WAITOK help in this
case?

Thanks in advance, regards.