to the MD include/cpu.h.
Also make sure that grf_cvreg.h includes cpu.h as it is needed by Xamiga
in xsrc/xfree/xc/programs/Xserver/hw/netbsd/amiga/s3/amigaCV.h.
on the amount of physical memory and limited by NMBCLUSTERS if present.
Architectures without direct mapping also limit it based on the kmem_map
size, which is used as backing store. On i386 and ARM, the maximum KVA
used for mbuf clusters is limited to 64MB by default.
The old default limits and limits based on GATEWAY have been removed.
key_registered_sb_max is hard-wired to a value derived from 2048
clusters.
amiga_membarrier() enforces a reorder protection on memory read/writes.
amiga_cpu_sync() makes sure the instruction pipelines are flushed.
Both macros may be used in all amiga device drivers for compatibility with
amigappc. For the start I fixed some SCSI drivers.
cbiiisc and ahsc were tested and seem to work really fast with DMA now.
Some stability problems with amigappc remain nevertheless (spontaneous
kernel DSI traps with high CPU/SCSI load).
#if NBPFILTER is no longer required in the client. This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached. However, callers of bpf can
now be modularized.
Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff. ... and I'm not going to ponder the depths of unload
here.
Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.
struct timeval passed to todr_gettime(9) and todr_settime(9).
We no longer have an ancient and volatile struct timeval `time'
global since we have switched to MI timercounter(9) on all port.
XXX1: some of these RTC drivers still assume 32bit time_t
XXX2: some of these should be rewritten to use todr_[gs]ettime_ymdhms()
XXX3: todr(9) man page doesn't mention todr_[gs]ettime_ymdhms()
delay loop.
This fixes keyboard handshaking problems with some A1200 models since 5.0
and restores the precision for short delays on DraCo systems (the QuickLogic
timer has only a seventh of the CIA precision).
Changed the keyboard handshaking delay from 2000 back to 200ms, although
even the recommended 85ms were successfully tested on the most problematic
A1200 keyboards.
All those changes were tested on an A3000 and A1200 with 68060/50 CPU, and
previously discussed on the port-amiga ML.
- use SYSMAP_VA, SEGSHIFT for Sysmap address and table entries
- use TIA_SIZE, TIB_SIZE for sizes of table entries
Now page size dependent numbers are almost replaced with proper macro.
Tested on atari, hp300, and news68k.
- move macro SEGSHIFT, NBSEG, and SEGOFSET from <machine/param.h>
to <m68k/pmap_motorola.h> where they should belong
- also simplify NBSEG macro for both 020/030 and 040/060 cases
- also move m68k_trunc_seg(), m68k_round_seg(), and m68k_seg_offset()
(that use SEGOFSET) from <m68k/param.h> to <m68k/pmap_motorola.h>
- add comments about each segment size value used on pmap_motorola
implementation
- add TIA_SIZE, TIA_SHIFT, TIB_SIZE, and TIB_SHIFT macro which can be
used for ste/pte index sizes
- use proper vaddr_t cast instead of unsigned for SEGOFSET/PGOFSET macro
Tested on atari, hp300, and news68k.
They were incorrect since 1997 on amiga and atari, and since 2002
on other ports, but fortunately they don't look so fatal.
Anyway, these values will be moved into <m68k/pmap_motorola.h> soon
since they are quite pmap implementation dependent.
from MD pmap bootstrap sources to common pmap_bootstrap_finalize().
Tested on atari, hp300, mac68k, and news68k.
XXX: Why is protection_codes[] array initialized at run time?
and in the case of IPL_AUDIO, results in IPL_VM blocking all interrupts.
[IPL_AUDIO is now the same as IPL_VM, and was setting the IPL_VM entry
to PSL_IPL6. IPL_SERIAL had a duplicate entry for some reason, and
serial drivers that check and modify IPL_SERIAL now shouldn't be affected
since IPL_SERIAL is now the same as IPL_HIGH. I'm hoping this will fix
or at least help the problem of serial interrupts being blocked too long.
- Addresses the issue described in PR/38828.
- Some simplification in threading and sleepq subsystems.
- Eliminates pmap_collect() and, as a side note, allows pmap optimisations.
- Eliminates XS_CTL_DATA_ONSTACK in scsipi code.
- Avoids few scans on LWP list and thus potentially long holds of proc_lock.
- Cuts ~1.5k lines of code. Reduces amd64 kernel size by ~4k.
- Removes __SWAP_BROKEN cases.
Tested on x86, mips, acorn32 (thanks <mpumford>) and partly tested on
acorn26 (thanks to <bjh21>).
Discussed on <tech-kern>, reviewed by <ad>.
output will be echoed to the serial port and input will be accepted
from either keyboard or serial port. The bootblock serial console is
limited to 9600bps 8N1 as it uses the AmigaOS kernel debug routines.
To enable this you have to uncomment the SERCONSOLE define in
boot/Makefile.
Also note that the handling of a serial console in the kernel is
independent of this, you need to a build a kernel with 'options
SERCONSOLE'.
The head of the list is now a pv_header, which contains the first pv_entry
as well as a 16-bit attributes field (replaces the pmap_attributes array
plus the pv_entry::pv_flags field) as a 16-bit count of caller-specified
cache-inhibited mappings.
Tested on hp300 (shared pmap_motorola.c), changes to atari and amiga copies
are purely mechanical.
