This adds the missing wbflush() calls after writing register data.
At same time tidy up several comments and make several KNF changes.
XXX: The z8530 MI driver doesn't support bus_space access to the registers
(lacks a hook for storing a bus space tag, and stores register
addresses directly)
Until other ports catch up (this is the first) we have overlayed
the missing data in the MD structures
and link it directly to db_command_table[] so that it's not necessary
to do this at runtime. Make db_machine_command_table[] const on all ports.
g/c now unneded stuff, like db_machine_commands_install(), db_machine_init()
Patch written by enami.
is fussy about the order of sections and location of memory gaps so we
must produce a firmware friendly version of the kernel as netbsd.ecoff for
network booting
The ELF version uses the standard mips linker script which can be loaded
by the new bootstrap routines
rather than assigning to the whole field, set or clear individual flags,
which implies that the B_BUSY and B_INVAL flags will remain set.
this allows us to make the assertion in brelse() that B_BUSY is set,
which is the purpose of all this.
pseudo-device pty 2 # pseudo-terminals (Sysinst needs two)
(Some installers may not be using sysinst, in which case this just reduces
the number of ptys from 16 that are not used to 2 that are not used)
For i386 conf files, no change other than comments.
we have to poke the data structures directly to force the offset we need.
The open() function returns with the address of the IO control block in
register t0 so we take a copy of it for our brute-force lseek function.
This should be reasonably portable since the firmware writers closely
follow UNIX semantics and the open stubs should recompile and use the
same registers. May break on the rebadged clones -- buyer beware.
The alternative is to use dummy reads to go forwards and reopen followed
by dummy reads to go backwards. It takes around 60 seconds to boot
using this method if we use a clean filesystem.
Tested with firmware versions 5.40 and 5.43
maps standard boot flags to corresponding RB_* values
use BOOT_FLAG() in port's MD code as appropriate
as discussed on tech-kern, add new boot flags -v, -q for booting
verbosely or quietly, and corresponding AB_VERBOSE/AB_QUIET
boot flags; also add FreeBSD-compatible bootverbose macro and
NetBSD-specific bootquiet macro
for hpcmips, use new bootverbose instead of it's own hpcmips_verbose
Tested on i386, and to limited extend (compile of affected files) also for
mvme68k, hp300, luna68k, sun3.
in the MIPS prom loader we have to be very careful how the sections are
ordered and the number of sections defined. For this reason the standard
linker scripts cannot be used.
The exact rules don't appear to be documented and a little experimentation
is required.
and alpha ports.
Uses PROM standalone I/O functions but due to the lack of a lseek function
it currently only works with version 5.40 of the firmware. A more portable
solution is being worked on.
installboot utility requires several changes in order to correctly install
the bootstrap code - there is a "volume directory" which contains a list
of filenames, start sectors and length. We need to add a "boot" entry of
the correct length starting at block 2. The boot file has to be ecoff
which means we waste another 0.5k
Normally the Mips filesystem has a ~500k partition for this purpose but it
should be possible to squeeze it all into the first 7k "BSD Style" (1k is
required for 2 different copies of the partition table)
Only the bootxx_ffs first stage bootstrap has been tested via bootp() which
loads the second stage off disk and then boots the kernel.
