src/sys/powerpc/powermac, branch main

powerpc: explicitly cast the timebase printfs

2026-01-30T06:36:33+00:00

This is causing compilation issues on powerpc:powerpc GENERIC.

powerpc: add a best-effort SMP time base sync for G5's that need it

2026-01-27T04:38:23+00:00

There's no timebase freeze platform routine registered on my dual 2.3GHz
G5 PPC970FX Apple PowerMac.

For platforms without an explicit timebase freeze/unfreeze, we'll have to
make do with what we have - which for now is an explicit hand-crafted
spinlock/rendezvous method.

* For existing platforms, they'll still continue to clock freeze /
  rendezvous; albeit with some stronger atomic bits now (from jhibbits@.)
* Instead of the fallback being "no timesync", implement a
  best-effort one which does a similar rendezvous barrier between
  BSP and APs, but instead of freeze/unfreeze the first instruction
  after the CPUs all register they're ready is to set the timebase.

This has resulted in many reboots of my Powermac G5 dual-socket device
correctly starting and running in SMP mode.

Differential Revision:  https://reviews.freebsd.org/D54821
Reviewed by:	jhibbits

bus_alloc_resource: Pass rid by value to BUS_ALLOC_RESOURCE DEVMETHOD

2025-12-09T20:00:06+00:00

The wrapper functions such as bus_alloc_resource_any() still support
passing the rid by value or pointer, but the underlying implementation
now passes by value.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D53402

intr/powerpc: create openpic_class kobj

2025-10-30T01:02:15+00:00

Using kobj allows implementing most PIC functions merely by inheriting
from the parent class.  As there are multiple OpenPIC implementations,
this ensures all common hooks go through by default.

Note, this adds the suspend/resume functions to other PICs.  This should
be harmless as suspend/resume isn't working on the devices anyway.

Reviewed by:	jhibbits
MFC after:	2 weeks

intr/powerpc: cleanup extraneous spaces in PowerMAC CPC HT driver

2025-10-30T01:01:00+00:00

Spotted while examing this driver.  Remove some end of line spaces/tabs.
Replace some spaces which should instead be tabs.

Reviewed by:	jhibbits
MFC after:	2 weeks

newbus: replace leftover device unit wildcards

2025-06-21T02:57:45+00:00

Reviewed by:	imp, jhb
Approved by:	imp (mentor)
Differential Revision:	https://reviews.freebsd.org/D50913

machine/stdarg.h -> sys/stdarg.h

2025-06-11T16:39:02+00:00

Switch to using sys/stdarg.h for va_list type and va_* builtins.

Make an attempt to insert the include in a sensible place.  Where
style(9) was followed this is easy, where it was ignored, aim for the
first block of sys/*.h headers and don't get too fussy or try to fix
other style bugs.

Reviewed by:	imp
Exp-run by:	antoine (PR 286274)
Pull Request:	https://github.com/freebsd/freebsd-src/pull/1595

Replace calls to bus_generic_attach with bus_attach_children

2024-12-06T22:26:16+00:00

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D47675

Check for errors when detaching children first, not last

2024-11-05T01:30:33+00:00

These detach routines in these drivers all ended with 'return
(bus_generic_detach())' meaning that if any child device failed to
detach, the parent driver was left in a mostly destroyed state, but
still marked attached.  Instead, bus drivers should detach child
drivers first and return errors before destroying driver state in the
parent.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D47387

newbus: globally replace device_add_child(..., -1) with DEVICE_UNIT_ANY

2024-07-25T04:22:58+00:00

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