lkml.org 
[lkml]   [2003]   [Aug]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: about PENTIUM4 cache line
    What's even more interesting is the following:

    tux:/usr/src/linux-2.6.0-test3 # grep -r "CONFIG_X86_L1_CACHE_SHIFT" *
    arch/i386/defconfig:CONFIG_X86_L1_CACHE_SHIFT=7
    arch/x86_64/defconfig:CONFIG_X86_L1_CACHE_SHIFT=6
    include/asm-x86_64/cache.h:#define L1_CACHE_SHIFT
    (CONFIG_X86_L1_CACHE_SHIFT)
    include/linux/autoconf.h:#define CONFIG_X86_L1_CACHE_SHIFT 5
    include/asm-i386/cache.h:#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
    include/asm/cache.h:#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
    include/config/x86/l1/cache/shift.h:#define CONFIG_X86_L1_CACHE_SHIFT 5
    tux:/usr/src/linux-2.6.0-test3 #

    Life sure is interesting.

    Cheers,
    Dave


    Jamie Lokier wrote:
    > michaelc wrote:
    >
    >> I read the Intel IA-32 developer's manual recently, and I found
    >> the cache lines for L1 and L2 caches in Pentium4 are 64 bytes
    >> wide, but the thing make me confused is that the default value
    >> CONFIG_X86_L1_CACHE_SHIFT option in 2.4.x kernel is 7, why it's
    >> not 6? Any expanation about this would be appreciated!
    >
    >
    > I don't recall seeing an answer to this.
    > Was there one?
    >
    > Cheers,
    > -- Jamie
    > -
    > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    > the body of a message to majordomo@vger.kernel.org
    > More majordomo info at http://vger.kernel.org/majordomo-info.html
    > Please read the FAQ at http://www.tux.org/lkml/
    >


    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2005-03-22 13:47    [W:0.026 / U:31.976 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site