- Make the 32-bit SPARC profile support work with the GCC 2.95.3
SPARC ELF compiler, which uses a different name for mcount.
- Make the 64-bit SPARC profile support header look more like the 32-bit
SPARC header (no functional change -- 64-bit SPARC already used the
correct mcount name).
we need later in the code. This fixes a fatal kernel fault in
pmap_modified_emulation if a user application tries to access a kernel
address that is section-mapped.
Add a diagnostic that detects attempts to call pmap_kenter_pa with a
va that is section-mapped.
- Set MARK_START to where we expect to be loading the kernel (0xf0100000).
- The ARM OpenFirmare bindings document describes how the client
program is loaded: OFW allocates and maps 6MB of memory at load-base
(0xf0000000), loads the client program, and then unmaps the memory from
the end of the client program to the end of the allocated region. Then
transfers control to the client program. We must emulate this behavior
to load the kernel: allocate 5MB at 0xf0100000 (where we expect to load
the kernel), load the kernel, then unmap the area after the kernel.
We can now load DHCP and load the kernel via NFS before getting the
dreaded Data Abort.
caching on for a page just because we are clearing the writable bit in
the PTE: this is incompatible with the way pmap_vac_me_harder works,
and the code in the modified emulation handler doesn't know about
recalculating the cachable attributes (nor should it, IMO).
Also, if we are invalidating a page, flush its TLB entry; for some
reason we were only doing this when clearing the Write or modified
bits.
These patches together seem to solve the random seg-faults that were
still occuring occasionally under heavy paging.
restore %fs/%gs appropriately.
Fixes kern/14275 - compat svr4 works on i386 again :)
Thanks to MOCHIDA Shuji for initial investigation on the issue, that helped
to find the bug a lot.
and non-standard inttype-like types, pull in <sys/types.h> if
_KERNEL or _STANDALONE and <inttypes.h> otherwise, and use standard
inttype types.
Discussed with and OK'd by Christos.
executable mappings. Stop overloading VTEXT for this purpose (VTEXT
also has another meaning).
- Rename vn_marktext() to vn_markexec(), and use it when executable
mappings of a vnode are established.
- In places where we want to set VTEXT, set it in v_flag directly, rather
than making a function call to do this (it no longer makes sense to
use a function call, since we no longer overload VTEXT with VEXECMAP's
meaning).
VEXECMAP suggested by Chuq Silvers.
device drivers:
- Various native device entries in cdevsw/bdevsw.
- Rework the interrupt infrastructure to provide more flexibility to
the platform-dependent back-end. Rewrite the "ofwgen" simulated
interrupt routines to reflect the changes.
- Clear out the BAT registers and set the fixed battable entries before
calling the platform init routine. The platform init routine is allowed
to set entries in the battable.
- Don't call the platform cons_init routine until after translation is
enabled -- we might need translation to work in order to access bus
space.
and it introduced problems (EBUSY error when opening the driver for
writing in securelevel >= 1, plus manipulating some unitialized data at
the end of chrtoblktbl[])
Make sure the CPUCLASS_686 entry has really 17 (i.e. 16 + default)
name entries as it's supposed to, so that code won't crash when
run on Intel CPUCLASS_686 processor which doesn't have name entry
in the table.
Reported and fix provided by Naoto Morishima in kern/14380.
Make sure that an unlabeled device gets at least RAW_PART
in the default in-core disklabel, instead of only a single
partition, so that applying a new disklabel can work normally.
is higher than SPL_HIGH (maybe we should be fixing SPL_HIGH).
If IPL_STATCLOCK is defined, initialize spl_masks[_SPL_STATCLOCK] from
it; otherwise initialize use IPL_CLOCK.
%fs/%gs as appropriate.
XXX Note that the new sigcontext uses the new sigset_t instead of old
int sc_mask. The new FreeBSD sigcontext doesn't contain any backward
compatibility sc_mask, so basically old FreeBSD application making
use of sigcontext are hosed. This can't be fixed in NetBSD compat code.
the etc Makefile override that by putting USETOOLS into $.MAKEOVERRIDES
This way the default for kernel compiles is still to use the installed
toolchain instead of depending on $TOOLDIR. $TOOLDIR can be used by
simply adding USETOOLS=yes to the command line as usual.
Adjust each ports template to set the default no setting and also pull in
bsd.own.mk if they weren't already to ensure they'll build correctly
with the new toolchain setup.
- Install boot.atari in both / and /usr/mdec. It looks good to have a
spare copy soemwhere...
- Add '/boot.ata' as a last resort bootname.
All per discussion with Simon Burge, Matthew Green and Soren S. Jorvang.
- Put all options necessary to build a 64-bit kernel into std.sparc64-64,
which can be included after std.sparc64.
- Change the logic used to enable 64-bit kernels. The kernel Makefile now
uses an LP64 make variable, and explicitly sets compiler flags and linker
scripts to generate 32-bit or 64-bit kernels.
but lacks the podulebus completely; this might be a good starting point for
small memory machines.
Most stuff is disabled but commenting it for easy adding.
- Garbage collect some cruft that doesn't apply to the ofppc port.
- Make our OFW-friendly alloc.c more like the libsa alloc.c
- Generally reduce some differences where we can between this
boot loader and the NetBSD/macppc boot loader.
- Use libsa's loadfile().
- Fix DDB symbol loading -- Add a magic number after the args string
so the kernel knows the symbols are there, provide both ssym and
esym, and make sure all these values are aligned to a 4-byte boundary.
- Add support for MS-DOS file systems.
again:
- Special-case the attachment of CPUs, and logically attach them to
"mainbus", attaching them before any other devices. Otherwise,
CPUs would be found very late in the game on my Firepower.
- Sanity check the timebase-frequency property, printing a warning if
it's not the same on each CPU.
- Pass the correct CPU ID to cpu_attach_subr().
- Fetch the platform name from the OFW root node. We can key off this
later when we implement support for native drivers in the ofppc port.
- Use a table of "special" toplevel OFW nodes ... we skip these nodes
during the device configuration phase. This generally includes the
"options", "packages", etc. nodes. Inspired by sparc & sparc64 ports.
amount of kvm used for buffers was set at 70%, some 188M. Then
the total amount of kvm became 1G, and the amount for buffers
thus became some 716M. This is really too much, and some
device drivers want to map quite a bit of kvm these days.
So, cap it at 384M, which gives each buffer a little over 8k (the
default FFS blocksize) physical in an 1G physram configuration.
support it in the kernel yet. If we don't do this, GDB arbitrarily
assumes we wanted it to be 9, which is silly.
In the kernel, leave it undefined so that sys_process.c doesn't
generate code for it.
the instruction we used with GDB 4.x. The new instruction has the advantage
of fitting the pattern that ARM recommend using for instructions that need to
stay undefined.
(eg ARM920), the mode in which the processor operates is governed by
the use of both the PT_C and PT_B bits:
PT_C=1,PT_B=1 -> Write-back
PT_C=1,PT_B=0 -> Write-through
To support this define pte_cache_mode (initialized to PT_C|PT_B) and
use that when enabling cacheing for a page.
to allocate a L1 pt is often enough to bring the system to its knees:
so make the messages PDEBUG(0,...).
However, even with this step having more than a small number of
processes searching for a L1 pt can still be enough to bring the system
down, since they all run at high priority and sleep for very little time,
thus blocking out user code from completing. So implement an exponential
backoff when waiting for a page table, so that we don't hog the CPU when
memory is scarce.
Tested by running a make of the C compiler with "gnumake -j30" (and plenty
of swap space).
is shared with another process (as can happen if vfork is being used),
then that other process will end up not having a page 0, which is bad
news indeed, since then there is no way back into the kernel.
Found this using a multi-ice box, so they are useful after all!
This seems to fix pr port-arm32/11921 and (possibly) kern/9859.
string, if present, will override the second argument (which may be the
path/kernel being loaded). This will provide a way to netboot the kernel
and allow the root device be set to a disk partition.
line parameters, and device_register() to try to match the boot device. Works
on a Challenge S (and similar machines), but will need more work for other
SCSI adapters.
and RC7500 from the old arch/arm32 that is gonna be deleted in its whole
soon.
IMPORTANT for RC7500 ... this also removes all RC7500 support .... its a
big pitty but was virtually unsupported allready for a few years and noone
had one... if someone wants to make RC7500 or decendants support undo this
removal and start from here.
arch/arm/iomd/* .... the RC7500 isnt really an iomd/vidc machine but has
different video/audio chip and was kind of hardwired/hacked into the other
chip drivers.
If __PCI_DEV_FUNCORDER is defined, don't do the song-and-dance to check if
a device is multi-function; machdep code is going to tell us exactly which
functions to probe.
Note this required changing how pci_func_devorder() works in the
sparc64 PCI machdep code; now the "curnode" is assumed to point
to the bus, rather than some function (typically 0) on the device,
just as pci_bus_devorder() makes that assumption.
All this should allow the PCI code to actually locate the second
HME device on a Sun Netra t1, which is at 3,1 -- previously, the
PCI code would have missed it because there is no device at 3,0.
(Sun deserves a brick to the head for this one -- this seems clearly
out of line with the PCI spec.)
COP0_SYNC
In R5900 mtc0, tlbr, tlbp, tlbwi, tlbwr must be followed by sync.p.
if defined MIPS3_5900, COP0_SYNC is defined as sync.p. else nothing.
IPL_ICU_MASK
mask interrupt directly ICU instead of SR.IM.
I've added this feature to support software interrupt for R5900.
and this option may be useful for platform which has cascaded ICU.
command line options. If NetBSD should be loaded, bootxx tries to load
the raw binary file '/boot' that resides on the same filesystem as the
kernel to be booted. This 3rd level boot is supposed to actually load the
kernel.
This is necessary to make the libstdc++ install work with the old toolchain,
since it installs <machine/_G_config.h> into /usr/src/${MACHINE}. There may
be other dependencies on the Old Way, too.
pmap_kenter_pa. pmap(9) says unmanage mappings don't get referenced/modified
tracking, and this seems to stop me getting a panic while starting up with
root on NFS.
matt