Norman Feske 288fd4e56e Add support for allocating DMA memory ... This patch extends the RAM session interface with the ability to allocate DMA buffers. The client specifies the type of RAM dataspace to allocate via the new 'cached' argument of the 'Ram_session::alloc()' function. By default, 'cached' is true, which correponds to the common case and the original behavior. When setting 'cached' to 'false', core takes the precautions needed to register the memory as uncached in the page table of each process that has the dataspace attached. Currently, the support for allocating DMA buffers is implemented for Fiasco.OC only. On x86 platforms, it is generally not needed. But on platforms with more relaxed cache coherence (such as ARM), user-level device drivers should always use uncacheable memory for DMA transactions.		2012-06-20 09:17:48 +02:00
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capability.h	Bump year in copyright headers to 2012	2012-01-03 15:35:05 +01:00
client.h	Add support for allocating DMA memory	2012-06-20 09:17:48 +02:00
connection.h	Bump year in copyright headers to 2012	2012-01-03 15:35:05 +01:00
ram_session.h	Add support for allocating DMA memory	2012-06-20 09:17:48 +02:00