src/sys/powerpc, branch main

powerpc64: fix builds

2026-04-17T19:32:48+00:00

Oops, I missed 'device ix' in here, and it now requires mdio.

powerpc/intr setup: Don't check intr name for IPI

2026-04-16T22:37:01+00:00

Since whether or not the irq is an IPI is passed into
powerpc_setup_intr_int(), use this as the check for IPI instead of
checking the name string.

mpc85xx: Support timebase sync on T-series devices

2026-04-16T22:36:54+00:00

Freescale T-series QorIQ devices use a different register to twiddle the
timebase enable.

powerpc/pmap: Add support for page sizes found on E6500

2026-04-16T22:35:52+00:00

E6500 cores (MMUv2) support all powers-of-2 page sizes from 4k to 1TB,
not just powers of 4.  By using the other page sizes (8k, 32k, etc) we
can save on TLB1 space, saving up to ~1/3 of used TLB1 entries.

pmap: Do not use PMAP_LOCK_INIT with kernel_pmap

2026-04-01T11:15:42+00:00

The kernel_pmap lock is a bit special: it does not need the DUPOK flag,
and it really belongs to a different lock class.  If it belongs to the
same class as regular pmap locks, then witness may report warnings when
performing UMA allocations under a regular pmap lock, if the allocation
triggers a pmap_growkernel() call.

Replace instances of PMAP_LOCK_INIT(kernel_pmap) with inline mtx_init()
calls to silence some witness warnings for harmless behaviour I see with
some uncommitted test programs.

Reviewed by:	alc, kib
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D56185

routing: Retire ROUTE_MPATH compile option

2026-03-27T20:25:33+00:00

The ROUTE_MPATH compile option was introduced to
test the new multipath implementation.
Since compiling it has no overhead and it's enabled
by default, remove it.

Reviewed by:	melifaro, markj
Relnotes:	yes
Differential Revision: https://reviews.freebsd.org/D55884

kernel: Be clearer about what ZSTDIO is for

2026-03-21T07:21:45+00:00

ZSTDIO is not just for core dumps, and it is now required by ZFS, so
move it (and GZIO, which is still just for dumps) to a new “Compression
support” section in GENERIC, and add them both to MINIMAL.

MFC after:	1 week
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D55940

powerpc64: initial conversion of oea64 to rwlocks

2026-02-22T02:22:46+00:00

Convert the oea64 mmu code to rwlocks.

Reviewed by:	jhibbits
Differential Revision:	https://reviews.freebsd.org/D54936

bus: Document special ranges of IVARs

2026-02-17T20:45:13+00:00

Some IVAR indices are special in that they have global meaning across
multiple buses where as other IVARs are always private to the local bus.
Try to document this a bit and add constants for the various ranges to
avoid future conflicts.

This is a no-op, but IVAR indices are now generally defined as enums
as that makes it easier to define them in terms of ranges.

Reviewed by:	imp, royger, andrew
Differential Revision:	https://reviews.freebsd.org/D54159

powerpc: document the magic constants for 16MB page size

2026-02-16T17:49:52+00:00

After discussion with jhibbits@, we pulled out what is supported here
and how it's supported.

Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D55093