genode/base-foc
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
..
config Fiasco.OC: basic support for pandaboard 2012-05-29 13:55:00 +02:00
doc Imported Genode release 11.11 2011-12-22 16:19:25 +01:00
etc Imported Genode release 11.11 2011-12-22 16:19:25 +01:00
include Add support for allocating DMA memory 2012-06-20 09:17:48 +02:00
lib/mk Fiasco.OC: basic support for pandaboard 2012-05-29 13:55:00 +02:00
mk Fiasco.OC: basic support for pandaboard 2012-05-29 13:55:00 +02:00
patches Fiasco.OC: raise sigma0's priority to maximum. 2012-06-04 17:10:16 +02:00
run Fiasco.OC/ARM: fix image creation in run-script 2012-06-04 12:05:27 +02:00
src Add support for allocating DMA memory 2012-06-20 09:17:48 +02:00
Makefile Check for required tools on 'make prepare' 2012-05-29 13:55:00 +02:00
README Imported Genode release 11.11 2011-12-22 16:19:25 +01:00

This repository contains the port of Genode to the Fiasco.OC microkernel.
For further information, please refer to the following documents:

:[http://genode.org/community/wiki/GenodeOnFiascoOC - Genode on Fiasco.OC Wiki page]:
  This Wiki page contains the information on how to build and use
  Genode with Fiasco.OC.

:[http://os.inf.tu-dresden.de/fiasco]:
  Official website for the Fiasco.OC microkernel.