CVS commit: src/sys/arch

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Wed Feb 16 23:49:27 UTC 2022

Modified Files:
        src/sys/arch/amiga/amiga: bus.c
        src/sys/arch/amigappc/amigappc: p5reg.h
        src/sys/arch/amigappc/include: bus_funcs.h cpu.h
        src/sys/arch/bebox/stand/boot: io.c pci.c vreset.c
        src/sys/arch/evbppc/pmppc/dev: if_cs_mainbus.c
        src/sys/arch/ibmnws/ibmnws: machdep.c
        src/sys/arch/macppc/dev: if_mc.c mediabay.c valkyriefb.c zs.c
        src/sys/arch/powerpc/include: pio.h
        src/sys/arch/powerpc/oea: pmap.c
        src/sys/arch/powerpc/pic: intr.c
        src/sys/arch/powerpc/powerpc: bus_dma.c
        src/sys/arch/prep/stand/boot: io.c pci.c vreset.c
        src/sys/arch/rs6000/stand/boot: boot.c
        src/sys/arch/sandpoint/stand/altboot: brdsetup.c

Log Message:
powerpc: Sprinkle "memory" clobbers on eieio and nearby asm blocks.

Otherwise the compiler may reorder these around loads and stores,
which mostly defeats the purpose.  `asm volatile' just ensures the
instruction isn't _deleted_; it may still move around.


To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/amiga/amiga/bus.c
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/amigappc/amigappc/p5reg.h
cvs rdiff -u -r1.1 -r1.2 src/sys/arch/amigappc/include/bus_funcs.h
cvs rdiff -u -r1.20 -r1.21 src/sys/arch/amigappc/include/cpu.h
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/bebox/stand/boot/io.c
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/bebox/stand/boot/pci.c
cvs rdiff -u -r1.14 -r1.15 src/sys/arch/bebox/stand/boot/vreset.c
cvs rdiff -u -r1.8 -r1.9 src/sys/arch/evbppc/pmppc/dev/if_cs_mainbus.c
cvs rdiff -u -r1.18 -r1.19 src/sys/arch/ibmnws/ibmnws/machdep.c
cvs rdiff -u -r1.27 -r1.28 src/sys/arch/macppc/dev/if_mc.c \
    src/sys/arch/macppc/dev/mediabay.c
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/macppc/dev/valkyriefb.c
cvs rdiff -u -r1.55 -r1.56 src/sys/arch/macppc/dev/zs.c
cvs rdiff -u -r1.9 -r1.10 src/sys/arch/powerpc/include/pio.h
cvs rdiff -u -r1.108 -r1.109 src/sys/arch/powerpc/oea/pmap.c
cvs rdiff -u -r1.33 -r1.34 src/sys/arch/powerpc/pic/intr.c
cvs rdiff -u -r1.53 -r1.54 src/sys/arch/powerpc/powerpc/bus_dma.c
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/prep/stand/boot/io.c
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/prep/stand/boot/pci.c
cvs rdiff -u -r1.9 -r1.10 src/sys/arch/prep/stand/boot/vreset.c
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/rs6000/stand/boot/boot.c
cvs rdiff -u -r1.40 -r1.41 src/sys/arch/sandpoint/stand/altboot/brdsetup.c

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