This avoids a zero pointer dereference, which fixes PR 8571.
Make sbic_dmago() report selection timeouts to the upper layer.
This makes sbic really work again with 1.4L.
by saving the last written FIOSVIDEO/GRFIOCBLANK value into a shadow variable
in the grf_softc and returning this value on FBIOGVIDEO.
The presence of this ioctl is needed by screenblank(8) nowadays.
Original problem reported by Lars Hecking on the port-amiga mailing list.
that is priority is rasied. Add a new spllowersoftclock() to provide the
atomic drop-to-softclock semantics that the old splsoftclock() provided,
and update calls accordingly.
This fixes a problem with using the "rnd" pseudo-device from within
interrupt context to extract random data (e.g. from within the softnet
interrupt) where doing so would incorrectly unblock interrupts (causing
all sorts of lossage).
XXX 4 platforms do not have priority-raising capability: newsmips, sparc,
XXX sparc64, and VAX. This platforms still have this bug until their
XXX spl*() functions are fixed.
mode. On this chip, we need to access some registers to set the text plane,
which messes up the graphics setup.
This should fix the grf3 problems reported by several people.
Michael Hitch and Joerg Lehners analyzed the problem and provided the fix.
bus. Without this, cbiiisc used to hang if nothing was connected.
Reported by Matthias Scheler. A similar method to avoid this was suggested
by Ralph Schmidt.
directly, call the function pointer (*if_input)(ifp, m). The input routine
expects the packet header to be at the head of the packet, and will adjust
as necessary. Privatize the layer 2 input and output routines, allowing
*_ifattach() to set them up as appropriate.
siop2.c. Add wide negotiation and Ultra support. Modify siop.c to match
the siop2.c sync negotiation changes. The CyberStorm MKIII driver now
supports 15 targets. Remove some old table-driven sync rate stuff from
the original Zeus driver.
when disconnecting etc., how much data were transferred, has changed.
Symptom: SIOP invalid instructions when doing data transfers to disks that
disconnect.
XXX The bits etc. need to be defined correctly in the siopreg.h file, and
symbolic values used.
