state into global and per-CPU scheduler state:
- Global state: sched_qs (run queues), sched_whichqs (bitmap
of non-empty run queues), sched_slpque (sleep queues).
NOTE: These may collectively move into a struct schedstate
at some point in the future.
- Per-CPU state, struct schedstate_percpu: spc_runtime
(time process on this CPU started running), spc_flags
(replaces struct proc's p_schedflags), and
spc_curpriority (usrpri of processes on this CPU).
- Every platform must now supply a struct cpu_info and
a curcpu() macro. Simplify existing cpu_info declarations
where appropriate.
- All references to per-CPU scheduler state now made through
curcpu(). NOTE: this will likely be adjusted in the future
after further changes to struct proc are made.
Tested on i386 and Alpha. Changes are mostly mechanical, but apologies
in advance if it doesn't compile on a particular platform.
- 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.
as this breaks C++ code that happens to indirectly include this header.
Both Matthias Scheler and I noticed this, independently.
This problem notably does not affect the atari and sun3/sun3x ports,
which have already implemented a similar solution.
in new hp300spu.h file. This includes the code that associates
model number with cpu/mmu/cache combinations.
- Define "mmuid" constants for several models, derived from code
provided by Mike Smith.
- place all interrupt-related macros, prototypes, etc. into <machine/intr.h>,
like other ports.
- rename isrlink/isrunlink/isrinit, etc. intr_establish/intr_disestablish/
intr_init, etc., and move to intr.c for naming consistency.
- don't call intr_init() twice.
properties such as "M68040" and "M68K_MMU_MOTOROLA", used to conditionally
compile code. This is more in-line with now the other m68k ports do it,
and makes it much easier to find "common ground" among them.
In locore.s, use the MMU-type constants defined my <machine/cpu.h> rather
than "expanded" values.
Because HP300-model names are mapped to CPU/MMU combinations in
<machine/cpu.h>, no change to kernel configuration will be necessary.
scw