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.
Remove the entire idea of fasttrap interrupts since V9 traps are really cheap,
the CPUs are really fast, and the completely different trap frames would make
these handlers really difficult to implement.
pmap_changeprot() was only used by the clock and one other place; deprecate it.
probeget() and probeset() now take 64-bit addresses even in 32-bit mode so we
can probe IO locations by physical addresses.
Some pmap cleanup.
Some more copyright cleanup.
the arguments are changed so the address is first and the ASI second so we
can have the address in %o0:%o1 and not worry about unused registers.
Also a bit of copyright cleanup.
(`SUNW,sabre') for now, and it doesn't really quite work there yet anyway.
the bus space/dma code is cloned from the sbus driver. the IOMMU code also
is cloned from the sbus code, but separated out into iommu.c so that we can
share it with the sbus driver. hopefully, much of the bus space/dma code
can also be re-shared with the sbus driver and the ebus driver but for now
these copies will do.
support for the real UltraSPARC PCI (`SUNW,psycho') is unwritten, though
most of this code is shared with it.
we can probe PCI config space and try to configue devices, but interrupts
don't work yet...
instead of ldstub, but since we aren't doing n-way locking it makes little
difference. N.B. Need to decide what to do with sparc64/sparc64/asm.h which
has name conflicts with sparc64/include/asm.h. So far most of
sparc64/sparc64/asm.h has been moved to ctlreg.h.
"BUS_SPACE_ALIGNED_POINTER()".
Equal to the param.h "ALIGNED_POINTER()" normally, but obeys additional
requirements of the bus_space_xxx_n() macros. (BUS_SPACE_DEBUG)
minor of libc and the major of libutil). For little-endian architectures
merge the bnswap() assembly versions with nto* and hton* using symbols
aliasing. Use symbol renaming for the bswap function in this case to avoid
namespace pollution.
Declare bswap* in machine/bswap.h, not machine/endian.h. For little-endian
machines, common code for inline macros go in machine/byte_swap.h
Sync libkern with libc.
Adjust #include in kernel sources for machine/bswap.h.
- cpu_set_kpc() now takes void *arg third argument, passed to the
entry point.
- cpu_fork() allows parent to be non-curproc iff parent is proc0.
When forking non-curproc, assume its state has already been saved.
- Adjust various pieces of machine-dependent code to account of all of this.
u-area in machine-dependent code. Instead, call exit2() to schedule
the reaper to free them for us, once it is safe to do so (i.e. we are
no longer running on the dead proc's vmspace and stack).
Moved from a two level 512/1024 entry setup mapping 32 (9/10/13) bits
respectively to a three level 1024/1024/1024 entry setup mapping 43
(10/10/10/13) bits. In 32-bit mode we waste about 1/12 pages mapping the high
11 bits. We also only manage 43 of the possible 44 bits of virtual address
space, wasting half of it. Oh well, maybe we'll do better next revision.
that they should make an ILP32 setup with an ILP32 compiler and an LP64
setup if run through an LP64 compiler. None of the data sizes actually
change right now, and any type errors that show up would have to be fixed
eventually anyway.
Added genassym.cf
Removed lderr which should never have gotten in
Removed lots of dead code from locore.s
Added some softint stuff to intr.c
Added support for halt -p
esp and le both use bus_dmamap_*() functions now
instead of kdvma_mapin()
groundwork for PCI (but we still have no drivers for
any sun4u PCI devices)
GC the unused `physadr' type, which was not able to hold a complete physical
address on 2 architectures anyhow. Also, move the definition of the `label_t'
type inside _KERNEL protection, since it is specific to the in-kernel
setjmp()/longjmp() implementations.
