Eric Lee / smarc-fsl-linux-kernel

14 Feb, 2008

1 commit

  • c658eac62   [XTENSA] Add support for configurable registers and coprocessors ... Browse Code »

    The Xtensa architecture allows to define custom instructions and
    registers. Registers that are bound to a coprocessor are only
    accessible if the corresponding enable bit is set, which allows
    to implement a 'lazy' context switch mechanism. Other registers
    needs to be saved and restore at the time of the context switch
    or during interrupt handling.

    This patch adds support for these additional states:

    - save and restore registers that are used by the compiler upon
    interrupt entry and exit.
    - context switch additional registers unbound to any coprocessor
    - 'lazy' context switch of registers bound to a coprocessor
    - ptrace interface to provide access to additional registers
    - update configuration files in include/asm-xtensa/variant-fsf

    Signed-off-by: Chris Zankel

    Chris Zankel
     

08 Feb, 2008

1 commit

  • 9a7744f98   Add cmpxchg_local to xtensa ... Browse Code »

    Use the architecture specific __cmpxchg_u32 for 32 bits cmpxchg)_local. Else,
    use the new generic cmpxchg_local (disables interrupt).

    Signed-off-by: Mathieu Desnoyers
    Cc: Chris Zankel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mathieu Desnoyers
     

09 May, 2007

1 commit

  • 5dc12ddee   Remove tas() ... Browse Code »

    tas() has no users, so get rid of it.

    Signed-off-by: Jeff Dike
    Cc:
    Cc: Paolo 'Blaisorblade' Giarrusso
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jeff Dike
     

11 Dec, 2006

1 commit

  • 173d66813   [PATCH] xtensa: remove extra header files ... Browse Code »

    The Xtensa port contained many header files that were never needed. This
    rather lengthy patch removes all those files. Unfortunately, there were
    many dependencies that needed to be updated, so this patch touches quite a
    few source files.

    Signed-off-by: Chris Zankel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Chris Zankel
     

15 Jul, 2006

1 commit

  • 52393ccc0   [PATCH] remove set_wmb - arch removal ... Browse Code »

    set_wmb should not be used in the kernel because it just confuses the
    code more and has no benefit. Since it is not currently used in the
    kernel this patch removes it so that new code does not include it.

    All archs define set_wmb(var, value) to do { var = value; wmb(); }
    while(0) except ia64 and sparc which use a mb() instead. But this is
    still moot since it is not used anyway.

    Hasn't been tested on any archs but x86 and x86_64 (and only compiled
    tested)

    Signed-off-by: Steven Rostedt
    Signed-off-by: Linus Torvalds

    Steven Rostedt
     

26 Apr, 2006

1 commit

11 Apr, 2006

1 commit

23 Sep, 2005

1 commit

05 Sep, 2005

1 commit

24 Jun, 2005

1 commit