Eric Lee / smarc-fsl-linux-kernel

25 Jul, 2011

1 commit

  • 171d809df   m68k: merge mmu and non-mmu bitops.h ... Browse Code »

    The following patch merges the mmu and non-mmu versions of the m68k
    bitops.h files. Now there is a good deal of difference between the two
    files, but none of it is actually an mmu specific difference. It is
    all about the specific m68k/coldfire varient we are targeting. So it
    makes an awful lot of sense to merge these into a single bitops.h.

    There is a number of ways I can see to factor this code. The approach
    I have taken here is to keep the various versions of each macro/function
    type together. This means that there is some ifdefery with each to handle
    each CPU type.

    I have added some comments in a couple of appropriate places to try
    and make it clear what the differences we are dealing with are.
    Specifically the instruction and addressing mode differences we have
    to deal with.

    The merged form keeps the same underlying optimizations for each CPU
    type for all the general bit clear/set/change and find bit operations.
    It does switch to using the generic le operations though, instead of
    any local varients.

    Build tested on ColdFire, 68328, 68360 (which is cpu32) and 68020+.
    Run tested on ColdFire and ARAnyM.

    Signed-off-by: Greg Ungerer
    Acked-by: Geert Uytterhoeven

    Greg Ungerer
     

16 Jan, 2009

1 commit

  • 49148020b   m68k,m68knommu: merge header files ... Browse Code »

    Merge header files for m68k and m68knommu to the single location:

    arch/m68k/include/asm

    The majority of this patch was the result of the
    script that is included in the changelog below.

    The script was originally written by Arnd Bergman and
    exten by me to cover a few more files.

    When the header files differed the script uses the following:

    The original m68k file is named _mm.h [mm for memory manager]
    The m68knommu file is named _no.h [no for no memory manager]

    The files uses the following include guard:

    This include gaurd works as the m68knommu toolchain set
    the __uClinux__ symbol - so this should work in userspace too.

    Merging the header files for m68k and m68knommu exposes the
    (unexpected?) ABI differences thus it is easier to actually
    identify these and thus to fix them.

    The commit has been build tested with both a m68k and
    a m68knommu toolchain - with success.

    The commit has also been tested with "make headers_check"
    and this patch fixes make headers_check for m68knommu.

    The script used:
    TARGET=arch/m68k/include/asm
    SOURCE=arch/m68knommu/include/asm

    INCLUDE="cachectl.h errno.h fcntl.h hwtest.h ioctls.h ipcbuf.h \
    linkage.h math-emu.h md.h mman.h movs.h msgbuf.h openprom.h \
    oplib.h poll.h posix_types.h resource.h rtc.h sembuf.h shmbuf.h \
    shm.h shmparam.h socket.h sockios.h spinlock.h statfs.h stat.h \
    termbits.h termios.h tlb.h types.h user.h"

    EQUAL="auxvec.h cputime.h device.h emergency-restart.h futex.h \
    ioctl.h irq_regs.h kdebug.h local.h mutex.h percpu.h \
    sections.h topology.h"

    NOMUUFILES="anchor.h bootstd.h coldfire.h commproc.h dbg.h \
    elia.h flat.h m5206sim.h m520xsim.h m523xsim.h m5249sim.h \
    m5272sim.h m527xsim.h m528xsim.h m5307sim.h m532xsim.h \
    m5407sim.h m68360_enet.h m68360.h m68360_pram.h m68360_quicc.h \
    m68360_regs.h MC68328.h MC68332.h MC68EZ328.h MC68VZ328.h \
    mcfcache.h mcfdma.h mcfmbus.h mcfne.h mcfpci.h mcfpit.h \
    mcfsim.h mcfsmc.h mcftimer.h mcfuart.h mcfwdebug.h \
    nettel.h quicc_simple.h smp.h"

    FILES="atomic.h bitops.h bootinfo.h bug.h bugs.h byteorder.h cache.h \
    cacheflush.h checksum.h current.h delay.h div64.h \
    dma-mapping.h dma.h elf.h entry.h fb.h fpu.h hardirq.h hw_irq.h io.h \
    irq.h kmap_types.h machdep.h mc146818rtc.h mmu.h mmu_context.h \
    module.h page.h page_offset.h param.h pci.h pgalloc.h \
    pgtable.h processor.h ptrace.h scatterlist.h segment.h \
    setup.h sigcontext.h siginfo.h signal.h string.h system.h swab.h \
    thread_info.h timex.h tlbflush.h traps.h uaccess.h ucontext.h \
    unaligned.h unistd.h"

    mergefile() {
    BASE=${1%.h}
    git mv ${SOURCE}/$1 ${TARGET}/${BASE}_no.h
    git mv ${TARGET}/$1 ${TARGET}/${BASE}_mm.h

    cat << EOF > ${TARGET}/$1
    EOF

    git add ${TARGET}/$1
    }

    set -e

    mkdir -p ${TARGET}

    git mv include/asm-m68k/* ${TARGET}
    rmdir include/asm-m68k

    git rm ${SOURCE}/Kbuild
    for F in $INCLUDE $EQUAL; do
    git rm ${SOURCE}/$F
    done

    for F in $NOMUUFILES; do
    git mv ${SOURCE}/$F ${TARGET}/$F
    done

    for F in $FILES ; do
    mergefile $F
    done

    rmdir arch/m68knommu/include/asm
    rmdir arch/m68knommu/include

    Cc: Arnd Bergmann
    Cc: Geert Uytterhoeven
    Signed-off-by: Sam Ravnborg
    Signed-off-by: Greg Ungerer

    Sam Ravnborg