Scott Long 988129b824 Introduce a spinlock for synchronizing access to the video output hardware ... in syscons. This replaces a simple access semaphore that was assumed to be protected by Giant but often was not. If two threads that were otherwise SMP-safe called printf at the same time, there was a high likelyhood that the semaphore would get corrupted and result in a permanently frozen video console. This is similar to what is already done in the serial console drivers.		2006-09-13 15:48:15 +00:00
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scgfbrndr.c
schistory.c
scmouse.c
scterm-dumb.c
scterm-sc.c
scterm.c
sctermvar.h
scvesactl.c
scvgarndr.c
scvidctl.c
scvtb.c
syscons.c
syscons.h
sysmouse.c