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

..

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

…

dcons.h

Integrate the new MPSAFE TTY layer to the FreeBSD operating system.

2008-08-20 08:31:58 +00:00