marius fd213ef8e2 Given that the buffer dcons_crom(4) exposes is used for both input ... and output, set BUS_DMA_COHERENT when creating the DMA map used for loading the buffer. As a side-effect this solves locking issues on sparc64 when dcons(4) calls bus_dmamap_sync(9) while in an interrupt filter, which are executed in a critical section, and iommu(4) has to use a sleep lock when taking advantage of the streaming buffer. Reported and tested by: kensmith Approved by: simokawa		2008-11-19 22:09:03 +00:00
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dcons_crom.c	Given that the buffer dcons_crom(4) exposes is used for both input	2008-11-19 22:09:03 +00:00
dcons_os.c	Also make dcons(4) use MPSAFE callouts.	2008-11-19 21:12:26 +00:00
dcons_os.h	Poll bus resets on FireWire while kdb/gdb is active.	2007-06-08 00:54:44 +00:00
dcons.c	Include stand.h for loader.	2007-05-25 05:00:39 +00:00
dcons.h	Integrate the new MPSAFE TTY layer to the FreeBSD operating system.	2008-08-20 08:31:58 +00:00