Rename the currently unused irq handler structure fields for podule
interrupts so they make more sense.
Define IPL_NONE as a positive value instead of -1 and increase the
number of IPL levels.
from from the corresponding `ic_*' and `dc_*' values. This is not perfect,
but it makes SS4s and SS5s run until we have proper per-cpu cache handling.
Use the `cache-physical?' property to determine the value of `vactype'
on sun4m's. If absent, set vactype to VAC_WRITETHROUGH (XXX) else VAC_NONE.
Print simpler sun4m CPU identifier on attach.
>use p->hashfraction when doing non-time-critical calculations, rather than
>using HASHFRACTION directly. in time-critical calculations, if HASHFRACTION
>is a power of two, check that p->hashfraction == HASHFRACTION and if so do
>the calculation with the compiled-in value so that the compiler can optimize
>out (potentially) expensive divisions. if p->hashfraction != HASHFRACTION,
>actually do the division. This has the result that on machines with slow
>division, the division can be optimized out of the common case, but that
>if HASHFRACTION changes from the compiled-in value (for whatever reason),
>profiling will still work. Changes suggested by Chris Torek.
using HASHFRACTION directly. in time-critical calculations, if HASHFRACTION
is a power of two, check that p->hashfraction == HASHFRACTION and if so do
the calculation with the compiled-in value so that the compiler can optimize
out (potentially) expensive divisions. if p->hashfraction != HASHFRACTION,
actually do the division. This has the result that on machines with slow
division, the division can be optimized out of the common case, but that
if HASHFRACTION changes from the compiled-in value (for whatever reason),
profiling will still work. Changes suggested by Chris Torek.
(1) right now GENERIC can boot via NFS, and
(2) in the long run, GENERIC should autodetect network booting
and pick the correct root device.
Because of (1), GENERIC_NFS is no longer _needed_ in the short term.
Because of (2), GENERIC_NFS is not _wanted_ in the long term.
and whacking a bit here and there where appropriate. Does not yet do
automatic root device detection, but that's much easier to add now.
RB_ASKNAME now supports specification of network devices, for diskless
booting. Also, RB_ASKNAME is now supported on _all_ kernels.
a (was ~RB_SINGLE, redundant with 'A') -> askname
n (was RB_ASKNAME) -> no meaning
d (was RB_DFLTROOT) -> no meaning (unnecessary with new setroot() code)
m (was RB_MINIROOT) -> no meaning (miniroots currently unsupported;
#ifdef'd out)
N (was ~RB_ASKNAME) -> no meaning (unnecessary; just don't specify RB_ASKNAME!)
Enable reselections as soon as possible after a disconnect - prevents
losing a reselecting device.
Check for and ignore a spurious interrupt during a DMA input (from the
Mach driver).
mark