Eric Lee / smarc-fsl-linux-kernel

24 Jul, 2011

1 commit

  • 66574cc05   modules: make arch's use default loader hooks ... Browse Code »

    This patch removes all the module loader hook implementations in the
    architecture specific code where the functionality is the same as that
    now provided by the recently added default hooks.

    Signed-off-by: Jonas Bonn
    Acked-by: Mike Frysinger
    Acked-by: Geert Uytterhoeven
    Tested-by: Michal Simek
    Signed-off-by: Rusty Russell

    Jonas Bonn
     

06 Oct, 2010

1 commit

  • 5336377d6   modules: Fix module_bug_list list corruption race ... Browse Code »

    With all the recent module loading cleanups, we've minimized the code
    that sits under module_mutex, fixing various deadlocks and making it
    possible to do most of the module loading in parallel.

    However, that whole conversion totally missed the rather obscure code
    that adds a new module to the list for BUG() handling. That code was
    doubly obscure because (a) the code itself lives in lib/bugs.c (for
    dubious reasons) and (b) it gets called from the architecture-specific
    "module_finalize()" rather than from generic code.

    Calling it from arch-specific code makes no sense what-so-ever to begin
    with, and is now actively wrong since that code isn't protected by the
    module loading lock any more.

    So this commit moves the "module_bug_{finalize,cleanup}()" calls away
    from the arch-specific code, and into the generic code - and in the
    process protects it with the module_mutex so that the list operations
    are now safe.

    Future fixups:
    - move the module list handling code into kernel/module.c where it
    belongs.
    - get rid of 'module_bug_list' and just use the regular list of modules
    (called 'modules' - imagine that) that we already create and maintain
    for other reasons.

    Reported-and-tested-by: Thomas Gleixner
    Cc: Rusty Russell
    Cc: Adrian Bunk
    Cc: Andrew Morton
    Cc: stable@kernel.org
    Signed-off-by: Linus Torvalds

    Linus Torvalds
     

12 Jun, 2009

1 commit

27 Apr, 2007

1 commit

  • 623b0355d   [AVR32] Clean up exception handling code ... Browse Code »

    * Use generic BUG() handling
    * Remove some useless debug statements
    * Use a common function _exception() to send signals or oops when
    an exception can't be handled. This makes sure init doesn't
    enter an infinite exception loop as well. Borrowed from powerpc.
    * Add some basic exception tracing support to the page fault code.
    * Rework dump_stack(), show_regs() and friends and move everything
    into process.c
    * Print information about configuration options and chip type when
    oopsing

    Signed-off-by: Haavard Skinnemoen

    Haavard Skinnemoen
     

26 Oct, 2006

1 commit

26 Sep, 2006

1 commit

  • 5f97f7f94   [PATCH] avr32 architecture ... Browse Code »

    This adds support for the Atmel AVR32 architecture as well as the AT32AP7000
    CPU and the AT32STK1000 development board.

    AVR32 is a new high-performance 32-bit RISC microprocessor core, designed for
    cost-sensitive embedded applications, with particular emphasis on low power
    consumption and high code density. The AVR32 architecture is not binary
    compatible with earlier 8-bit AVR architectures.

    The AVR32 architecture, including the instruction set, is described by the
    AVR32 Architecture Manual, available from

    http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf

    The Atmel AT32AP7000 is the first CPU implementing the AVR32 architecture. It
    features a 7-stage pipeline, 16KB instruction and data caches and a full
    Memory Management Unit. It also comes with a large set of integrated
    peripherals, many of which are shared with the AT91 ARM-based controllers from
    Atmel.

    Full data sheet is available from

    http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf

    while the CPU core implementation including caches and MMU is documented by
    the AVR32 AP Technical Reference, available from

    http://www.atmel.com/dyn/resources/prod_documents/doc32001.pdf

    Information about the AT32STK1000 development board can be found at

    http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918

    including a BSP CD image with an earlier version of this patch, development
    tools (binaries and source/patches) and a root filesystem image suitable for
    booting from SD card.

    Alternatively, there's a preliminary "getting started" guide available at
    http://avr32linux.org/twiki/bin/view/Main/GettingStarted which provides links
    to the sources and patches you will need in order to set up a cross-compiling
    environment for avr32-linux.

    This patch, as well as the other patches included with the BSP and the
    toolchain patches, is actively supported by Atmel Corporation.

    [dmccr@us.ibm.com: Fix more pxx_page macro locations]
    [bunk@stusta.de: fix `make defconfig']
    Signed-off-by: Haavard Skinnemoen
    Signed-off-by: Adrian Bunk
    Signed-off-by: Dave McCracken
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Haavard Skinnemoen