Eric Lee / smarc-ti-linux-kernel

09 Dec, 2006

1 commit

  • f0d1b0b30   [PATCH] LOG2: Implement a general integer log2 facility in the kernel ... Browse Code »

    This facility provides three entry points:

    ilog2() Log base 2 of unsigned long
    ilog2_u32() Log base 2 of u32
    ilog2_u64() Log base 2 of u64

    These facilities can either be used inside functions on dynamic data:

    int do_something(long q)
    {
    ...;
    y = ilog2(x)
    ...;
    }

    Or can be used to statically initialise global variables with constant values:

    unsigned n = ilog2(27);

    When performing static initialisation, the compiler will report "error:
    initializer element is not constant" if asked to take a log of zero or of
    something not reducible to a constant. They treat negative numbers as
    unsigned.

    When not dealing with a constant, they fall back to using fls() which permits
    them to use arch-specific log calculation instructions - such as BSR on
    x86/x86_64 or SCAN on FRV - if available.

    [akpm@osdl.org: MMC fix]
    Signed-off-by: David Howells
    Cc: Benjamin Herrenschmidt
    Cc: Paul Mackerras
    Cc: Herbert Xu
    Cc: David Howells
    Cc: Wojtek Kaniewski
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     

11 Apr, 2006

1 commit

  • c80d79d74   [PATCH] Configurable NODES_SHIFT ... Browse Code »

    Current implementations define NODES_SHIFT in include/asm-xxx/numnodes.h for
    each arch. Its definition is sometimes configurable. Indeed, ia64 defines 5
    NODES_SHIFT values in the current git tree. But it looks a bit messy.

    SGI-SN2(ia64) system requires 1024 nodes, and the number of nodes already has
    been changeable by config. Suitable node's number may be changed in the
    future even if it is other architecture. So, I wrote configurable node's
    number.

    This patch set defines just default value for each arch which needs multi
    nodes except ia64. But, it is easy to change to configurable if necessary.

    On ia64 the number of nodes can be already configured in generic ia64 and SN2
    config. But, NODES_SHIFT is defined for DIG64 and HP'S machine too. So, I
    changed it so that all platforms can be configured via CONFIG_NODES_SHIFT. It
    would be simpler.

    See also: http://marc.theaimsgroup.com/?l=linux-kernel&m=114358010523896&w=2

    Signed-off-by: Yasunori Goto
    Cc: Hirokazu Takata
    Cc: "Luck, Tony"
    Cc: Andi Kleen
    Cc: Paul Mackerras
    Cc: Benjamin Herrenschmidt
    Cc: Ivan Kokshaysky
    Cc: Richard Henderson
    Cc: Kyle McMartin
    Cc: Russell King
    Cc: Ralf Baechle
    Cc: Jack Steiner
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yasunori Goto
     

27 Mar, 2006

1 commit

  • 6d9f937b5   [PATCH] bitops: m32r: use generic bitops ... Browse Code »

    - remove __{,test_and_}{set,clear,change}_bit() and test_bit()
    - remove ffz()
    - remove find_{next,first}{,_zero}_bit()
    - remove __ffs()
    - remove generic_fls()
    - remove generic_fls64()
    - remove sched_find_first_bit()
    - remove generic_ffs()
    - remove generic_hweight{32,16,8}()
    - remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
    - remove ext2_{set,clear}_bit_atomic()
    - remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()

    Signed-off-by: Akinobu Mita
    Cc: Hirokazu Takata
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Akinobu Mita
     

11 Jan, 2006

1 commit

  • 2308acca6   [PATCH] "tiny-make-id16-support-optional" fixes ... Browse Code »

    It seems the "make UID16 support optional" patch was checked when it
    edited the -tiny tree some time ago, but it wasn't checked whether it
    still matches the current situation when it was submitted for inclusion
    in -mm. This patch fixes the following bugs:
    - ARCH_S390X does no longer exist, nowadays this has to be expressed
    through (S390 && 64BIT)
    - in five architecture specific Kconfig files the UID16 options
    weren't removed

    Additionally, it changes the fragile negative dependencies of UID16 to
    positive dependencies (new architectures are more likely to not require
    UID16 support).

    Signed-off-by: Adrian Bunk
    Acked-by: Matt Mackall
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

07 Jan, 2006

1 commit

  • 9287d95ea   [PATCH] m32r: Support M32104UT target platform ... Browse Code »

    This patch is for supporting a new target platform, Renesas M32104UT
    evaluation board.

    The M32104UT is an eval board based on an uT-Engine specification. This board
    has an MMU-less M32R family processor, M32104.
    http://www-wa0.personal-media.co.jp/pmc/archive/te/te_m32104_e.pdf

    This board is one of the most popular M32R platform, so we have ported
    Linux/M32R to it.

    Signed-off-by: Naoto Sugai
    Signed-off-by: Hirokazu Takata
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Hirokazu Takata
     

15 Sep, 2005

1 commit

  • 4db2ce019   [LIB]: Consolidate _atomic_dec_and_lock() ... Browse Code »

    Several implementations were essentialy a common piece of C code using
    the cmpxchg() macro. Put the implementation in one spot that everyone
    can share, and convert sparc64 over to using this.

    Alpha is the lone arch-specific implementation, which codes up a
    special fast path for the common case in order to avoid GP reloading
    which a pure C version would require.

    Signed-off-by: David S. Miller

    David S. Miller
     

11 Sep, 2005

1 commit

  • 12c62c2e9   [PATCH] Remove even more stale references to Documentation/smp.tex ... Browse Code »

    Randy cleaned out the bulk of these stale references to the now long gone
    Documentation/smp.tex back in 2004. I followed this up with a few more
    sweeps. Somehow, these have managed to sneak back in since.

    I can't seem to figure out a contact point for M32R (no one listed in
    MAINTAINERS!), but, these patches are only but trivial.

    Signed-off-by: Arthur Othieno
    Acked-by: Russell King
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arthur Othieno
     

24 Aug, 2005

2 commits

12 Jul, 2005

1 commit

  • d5950b435   [NET]: add a top-level Networking menu to *config ... Browse Code »

    Create a new top-level menu named "Networking" thus moving
    net related options and protocol selection way from the drivers
    menu and up on the top-level where they belong.

    To implement this all architectures has to source "net/Kconfig" before
    drivers/*/Kconfig in their Kconfig file. This change has been
    implemented for all architectures.

    Device drivers for ordinary NIC's are still to be found
    in the Device Drivers section, but Bluetooth, IrDA and ax25
    are located with their corresponding menu entries under the new
    networking menu item.

    Signed-off-by: Sam Ravnborg
    Signed-off-by: David S. Miller

    Sam Ravnborg
     

24 Jun, 2005

1 commit

  • 3f22ab276   [PATCH] make each arch use mm/Kconfig ... Browse Code »

    For all architectures, this just means that you'll see a "Memory Model"
    choice in your architecture menu. For those that implement DISCONTIGMEM,
    you may eventually want to make your ARCH_DISCONTIGMEM_ENABLE a "def_bool
    y" and make your users select DISCONTIGMEM right out of the new choice
    menu. The only disadvantage might be if you have some specific things that
    you need in your help option to explain something about DISCONTIGMEM.

    Signed-off-by: Dave Hansen
    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dave Hansen
     

22 Jun, 2005

1 commit

  • 236808634   [PATCH] m32r: Support M3A-2170(Mappi-III) platform ... Browse Code »

    This patchset is for supporting a new m32r platform, M3A-2170(Mappi-III)
    evaluation board. An M32R chip multiprocessor is equipped on the board.
    http://http://www.linux-m32r.org/eng/platform/platform.html

    * arch/m32r/Kconfig: Support Mappi-III platform.
    * arch/m32r/kernel/Makefile: ditto.
    * arch/m32r/kernel/io_mappi3.c: ditto.
    * arch/m32r/kernel/setup.c: ditto.
    * arch/m32r/kernel/setup_mappi3.c: ditto.
    * include/asm-m32r/m32102.h: ditto.
    * include/asm-m32r/m32r.h: ditto.
    * include/asm-m32r/mappi3/mappi3_pld.h: ditto.

    * include/asm-m32r/ide.h: CF support for Mappi-III.
    * arch/m32r/kernel/setup_mappi3.c: ditto.

    * arch/m32r/mappi3/defconfig.smp: A default config file for Mappi-III.
    * arch/m32r/mappi3/dot.gdbinit: A default .gdbinit file for Mappi-III.

    * arch/m32r/boot/compressed/m32r_sio.c: Modified for Mappi-III
    - At boot time, m32r-g00ff bootloader makes MMU off for Mappi-III,
    on the contrary it makes MMU on for Mappi-II.

    * arch/m32r/kernel/io_mappi2.c: Update comments.
    * arch/m32r/kernel/setup_mappi2.c: ditto.

    Signed-off-by: Mamoru Sakugawa
    Signed-off-by: Hirokazu Takata
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Hirokazu Takata
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »
    212

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds