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path: root/sys/src/9/pc/devlml.c
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2016-03-27zynq: introduce SG_FAULT to prevent access to AXI segment while PL is not readycinap_lenrek
access to the axi segment hangs the machine when the fpga is not programmed yet. to prevent access, we introduce a new SG_FAULT flag, that when set on the Segment.type or Physseg.attr, causes the fault handler to immidiately return with an error (as if the segment would not be mapped). during programming, we temporarily set the SG_FAULT flag on the axi physseg, flush all processes tlb's that have the segment mapped and when programming is done, we clear the flag again.
2011-03-30Import sources from 2011-03-30 iso image - libTaru Karttunen
2011-03-30Import sources from 2011-03-30 iso imageTaru Karttunen