CVS commit: [netbsd-10] src/sys/arch/powerpc

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Fri Dec 29 20:21:40 UTC 2023

Modified Files:
        src/sys/arch/powerpc/include [netbsd-10]: pmap.h vmparam.h
        src/sys/arch/powerpc/include/oea [netbsd-10]: pmap.h
        src/sys/arch/powerpc/oea [netbsd-10]: pmap.c pmap_kernel.c
        src/sys/arch/powerpc/powerpc [netbsd-10]: bus_dma.c trap.c vm_machdep.c

Log Message:
Additionally pull up following revision(s) (requested by rin in ticket #400):

        sys/arch/powerpc/include/oea/pmap.h: revision 1.39
        sys/arch/powerpc/include/pmap.h: revision 1.43
        sys/arch/powerpc/oea/pmap_kernel.c: revision 1.14
        sys/arch/powerpc/oea/pmap.c: revision 1.117
        sys/arch/powerpc/oea/pmap.c: revision 1.118
        sys/arch/powerpc/oea/pmap.c: revision 1.119
        sys/arch/powerpc/include/vmparam.h: revision 1.27
        sys/arch/powerpc/powerpc/trap.c: revision 1.165
        sys/arch/powerpc/oea/pmap.c: revision 1.120
        sys/arch/powerpc/oea/pmap.c: revision 1.121
        sys/arch/powerpc/powerpc/vm_machdep.c: revision 1.106
        sys/arch/powerpc/powerpc/bus_dma.c: revision 1.56

powerpc/oea: trap: pmap_{pte,ste}_spill() even in the interrupt context

Page table for oea is something like L2 TLB on memory; kernel and
processes share its entries, and process entries can be spilled out.

As done for MMU based on software-managed TLB, we need to restore
such entries even in the interrupt context.

Note that pmap_pte_spill() require no resouce to restore entries.
Still-not-implemented pmap_ste_spill() for OEA64 should also.
Part of PR kern/57621

powerpc/oea: pmap: Drop unused argument for pmap_pvo_reclaim(), NFC
Part of PR kern/57621

powerpc/oea: pmap: Rework pmap_pte_spill()

It was broken in many ways... Now, it gets working stable both for
OEA and OEA64_BRIDGE, as far as I can see.
Part of PR kern/57621

powerpc/oea: pmap: Fix mostly-pointless overhead of pmap_pvo_pool
(1) Drop __aligned(32) from struct pvo_entry; otherwise,
    sizeof(struct pvo_entry) is round-up'ed to a multiple of 32.
(2) Do not set sizeof(struct pvo_entry) to `align` argument for
    pool_init(9); it must be power of 2.
(3) Align pvo_entry to 32-byte boundary only if reasonably possible,
    i.e., OEA without DIAGNOSTIC (--> POOL_REDZONE) for now.
Part of PR kern/57621

powerpc/oea: pmap_create: Use PR_ZERO and drop memset(9), NFC
Part of PR kern/57621

powerpc: oea: For OEA64_BRIDGE, 1:1 map up to 3GiB memory
As done for OEA. Note that kva over 3GiB is reserved.

Provide PMAP_MAP_POOLPAGE for OEA64_BRIDGE at the same time, by
which direct-mapped memory is utilized in order to work around
starvation of 512MiB kernel virtual space.
PR kern/57621

powerpc: Make sure direct-mapped buffer fits within correct range

For OEA and OEA64_BRIDGE, only first 3GiB memory is direct-mapped.
Part of PR kern/57621


To generate a diff of this commit:
cvs rdiff -u -r1.42 -r1.42.4.1 src/sys/arch/powerpc/include/pmap.h
cvs rdiff -u -r1.26 -r1.26.4.1 src/sys/arch/powerpc/include/vmparam.h
cvs rdiff -u -r1.37 -r1.37.4.1 src/sys/arch/powerpc/include/oea/pmap.h
cvs rdiff -u -r1.114.4.1 -r1.114.4.2 src/sys/arch/powerpc/oea/pmap.c
cvs rdiff -u -r1.13 -r1.13.4.1 src/sys/arch/powerpc/oea/pmap_kernel.c
cvs rdiff -u -r1.55 -r1.55.4.1 src/sys/arch/powerpc/powerpc/bus_dma.c
cvs rdiff -u -r1.163 -r1.163.20.1 src/sys/arch/powerpc/powerpc/trap.c
cvs rdiff -u -r1.105 -r1.105.2.1 src/sys/arch/powerpc/powerpc/vm_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.