b959cd4c1f
Re-organise eca(4)'s FIQ handlers. Now we have a single FIQ handler copied
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to zero page, and it branches to either the rx or tx handler. My intention
is that the tx handler should switch to the rx one the moment it finishes,
without needing a downgrade, which I hope will get rid of the start-of-frame
rx overruns I'm seeing.
While I'm here, move the constants describing the shape of the FIQ state
structures out of if_ecavar.h and into genassym.cf where they belong.
2001-09-20 21:54:11 +00:00
5ddc1e1310
Add retry mechanisms for Econet, so that if a four-way handshake doesn't
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complete for some reason, we defer it for a bit and then try again. This
gets ping down to 0% packet loss.
Of course, ping _should_ have been at 0% packet loss anyway, and that's the
next thing to deal with.
2001-09-17 22:41:59 +00:00
33d596bef8
Add support for incoming IP broadcast packets. The protocol for this is
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worked out by observing RISC iX's behaviour, so it may be technically
wrong. The only implementations of IP-over-Econet for which I've got
sources don't support broadcasts.
Tested using broadcast ping from RISC iX to NetBSD, and using rwhod.
2001-09-16 15:08:39 +00:00
7763bd3d61
Crude hack to ensure that if a soft-interrupt handler schedules a soft
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interrupt, the second handler gets called when the first returns.
2001-09-16 12:58:53 +00:00
91dae8ca83
Add minimal IP-over-Econet support and a load of bug-fixes. I can ping,
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unreliably, between my RISC iX and NetBSD boxes with this. There's a lot
of work to go before it's solid, though.
2001-09-15 17:27:24 +00:00
5321796010
Add a minimal bus_space_mmap which always fails. The MEMC can only map DRAM
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into the user's address space -- I/O devices can only ever be got at by the
kernel.
2001-09-11 11:38:59 +00:00
e416135347
Driver for the standard Archimedes Econet interface, based around the
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Motorola 6854 ADLC.
2001-09-10 23:41:48 +00:00
c30b958988
Add fiq_installhandler(), so the current FIQ owner can change what handler
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they've got installed without relinquishing the FIQ.
2001-09-10 23:17:48 +00:00
0e7661f023
Update pmap_update to now take the updated pmap as an argument.
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This will allow improvements to the pmaps so that they can more easily defer expensive operations, eg tlb/cache flush, til the last possible moment.
Currently this is a no-op on most platforms, so they should see no difference.
Reviewed by Jason.
2001-09-10 21:19:08 +00:00
a425cc29ac
Make it compile again if for some configuration there are no FIQ's ... It
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complained about the unused label.
2001-09-10 02:21:42 +00:00
7ce6450eac
Add a merged <pcb.h> for arm26/arm32.
2001-09-03 19:20:27 +00:00
5f25c01eff
Comment out bridge pseudo devices from ports that don't
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__HAVE_GENERIC_SOFT_INTERRUPTS. bridge(4) doesn't compile there.
2001-09-01 23:08:40 +00:00
97c67a9bae
Add bridge pseudo devices to GENERIC configs
2001-09-01 21:52:23 +00:00
023bdd2bf2
Use comments around the token after a #endif.
2001-08-31 04:44:54 +00:00
6825e7d5ea
Garbage-collect pcb_onfault_lj, since it's unused and doesn't exist on
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arm32 ports.
2001-08-26 14:15:07 +00:00
66da5fecf2
KASSERT the presence of a FIQ downgrade handler before we try to call it.
2001-08-26 12:25:38 +00:00
9c45cae8df
Make cmos_read() and cmos_write() globally visible, and make the instance
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they operate on implicit. Also, stop abusing cf_unit, and remove a vast
swathe of unused code.
2001-08-26 12:24:24 +00:00
0ff76b5187
Add fiq_off() and fiq_on().
2001-08-26 12:20:59 +00:00
3f9dc1b3e8
In ioc_attach(), use ioc_irq_setmask() and ioc_fiq_setmask() rather than
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twiddling registers directly. Also, remove an outdated comment.
2001-08-25 17:59:38 +00:00
7da5d70599
Add fiq_on() and fiq_off(), to enable and disable FIQs at the CPU.
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Call fiq_off() from start() and fiq_on() from cpu_configure(), so we're certain
not to get any FIQs during autoconfiguration.
2001-08-25 17:55:24 +00:00
bf5b029d44
Make sure that soft interrupts are initialised in a "not pending" state.
2001-08-25 17:45:32 +00:00
35228f775a
Two related changes:
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Make splhigh disable IRQs at the CPU rather than at the IOC. This has the
potential to be faster, and more importantly ensures that splhigh() blocks
FIQ downgrades.
Have a variable which indicates that a FIQ downgrade is required, and ensure
that the IOC "force IRQ" bit is turned on in this case. This ensures that
FIQ downgrades don't get lost if something happens to be fiddling with the
interrupt mask at the wrong moment.
2001-08-21 22:47:17 +00:00
8a979a066f
Change various return sequences to the APCS-32 versions.
2001-08-21 22:42:17 +00:00
1def612c66
Correctly restore the spl if we fail to claim the FIQ.
2001-08-21 22:40:39 +00:00
1d4ae5d285
Use int_off_save and int_restore rather than int_off and int_on.
2001-08-20 23:28:05 +00:00
45b5bdc5e5
Split off the pm_entries array from the rest of struct pmap. This makes
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memory allocation for it more efficient (since pm_entries is 4096 bytes long),
and will allow pm_entries to be freed for swapped processes.
2001-08-20 23:12:54 +00:00
8ec27f2ebe
Implementation of fiq_{get,set}regs.
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Also, don't leave space for a FIQ handler in kernels with no FIQing devices.
2001-08-20 23:10:51 +00:00
13f36f67c6
Don't initialise a podule's loader multiple times.
2001-08-20 23:09:12 +00:00
9aa4896361
More FIQ support. This gives me enough to handle FIQs, and to downgrade them
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to IRQs as necessary. All these interfaces are subject to change in the light
of experience.
2001-08-20 23:08:10 +00:00
1061e51a8a
One from the vaults: Add lint stubs.
2001-08-20 22:56:10 +00:00
c52d355d71
"wierd" is weird.
2001-08-20 12:20:01 +00:00
316cd176c8
in vunmapbuf(), call pmap_*remove() explicitly since uvm_km_free_wakeup()
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will soon no longer do it for us.
2001-08-19 17:43:44 +00:00
8b7128e398
Changes in aid of FIQ support:
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Add ioc_fiq_setmask().
Change ioc_irq_status_full() to use the request registers rather than the
status registers. This is brings it into line with the Unix baclplane, and
makes detecting downgraded FIQs possible.
2001-08-19 15:27:44 +00:00
63011ec08f
Add lint stubs. Not actually tested or anything.
2001-08-13 23:16:11 +00:00
9d345bfc35
New header file for FIQ-related definitions.
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Currently just contains the FIQ numbers, until I decide on an API.
2001-08-13 22:59:40 +00:00
a3119c10de
Report link status correctly for 10BASE-T.
2001-08-11 20:42:45 +00:00
12a3da3896
Add RASOPS_SMALL.
2001-08-10 20:14:17 +00:00
beb2e3fe5d
Cast size_t argument appropriately for printf format.
2001-08-10 18:51:06 +00:00
b5560b60b9
No need to mention procfs_machdep.c here -- it's in files.arm anyway.
2001-08-10 18:24:20 +00:00
bd6d4d6b77
Use <arm/param.h> to get shared definitions.
2001-08-07 22:26:56 +00:00
9522cf08d4
Share procfs_machdep.c across arm.
2001-08-05 13:09:45 +00:00
8c3ac05de9
Bump version for * command addition.
2001-08-03 00:41:12 +00:00
33452511ed
Add a single * command, *boot26, so that the module can be manually invoked
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after it's loaded.
2001-08-03 00:40:23 +00:00
b471d90032
Add OS_Module.
2001-08-03 00:32:30 +00:00
6e82ab9796
Wrap boot26 in a minimal relocatable module. When *RMRun, it just copies the
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existing boot26 code to 0x8000 and runs it.
2001-08-02 23:55:55 +00:00
3e749936d6
Script to generate a help string for a RISC OS module from the same sources
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as newvers_stand.sh uses.
2001-08-02 23:47:07 +00:00
4eebbc71e2
Don't force booters to have srt0.S at the start if they don't want to.
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Also allow them to override the filetype they end up with.
2001-08-02 23:38:04 +00:00
a2ac0e50f5
Bump version number for loadfile changes.
2001-08-02 20:24:03 +00:00
1ede42fe57
Add <machine/sysarch.h> to go with sysarch().
2001-07-28 19:14:00 +00:00
c5ae075e50
Add a very simple sysarch() implementation so that libarm32 will work.
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This should go when arm26 uses cpufunc like everyone else.
2001-07-28 19:12:50 +00:00
bjh21