Eric Lee / smarc-fsl-linux-kernel

27 Jul, 2011

1 commit

26 Jul, 2011

1 commit

31 Mar, 2011

1 commit

07 Oct, 2010

1 commit

  • df9ee2927   Fix IRQ flag handling naming ... Browse Code »

    Fix the IRQ flag handling naming. In linux/irqflags.h under one configuration,
    it maps:

    local_irq_enable() -> raw_local_irq_enable()
    local_irq_disable() -> raw_local_irq_disable()
    local_irq_save() -> raw_local_irq_save()
    ...

    and under the other configuration, it maps:

    raw_local_irq_enable() -> local_irq_enable()
    raw_local_irq_disable() -> local_irq_disable()
    raw_local_irq_save() -> local_irq_save()
    ...

    This is quite confusing. There should be one set of names expected of the
    arch, and this should be wrapped to give another set of names that are expected
    by users of this facility.

    Change this to have the arch provide:

    flags = arch_local_save_flags()
    flags = arch_local_irq_save()
    arch_local_irq_restore(flags)
    arch_local_irq_disable()
    arch_local_irq_enable()
    arch_irqs_disabled_flags(flags)
    arch_irqs_disabled()
    arch_safe_halt()

    Then linux/irqflags.h wraps these to provide:

    raw_local_save_flags(flags)
    raw_local_irq_save(flags)
    raw_local_irq_restore(flags)
    raw_local_irq_disable()
    raw_local_irq_enable()
    raw_irqs_disabled_flags(flags)
    raw_irqs_disabled()
    raw_safe_halt()

    with type checking on the flags 'arguments', and then wraps those to provide:

    local_save_flags(flags)
    local_irq_save(flags)
    local_irq_restore(flags)
    local_irq_disable()
    local_irq_enable()
    irqs_disabled_flags(flags)
    irqs_disabled()
    safe_halt()

    with tracing included if enabled.

    The arch functions can now all be inline functions rather than some of them
    having to be macros.

    Signed-off-by: David Howells [X86, FRV, MN10300]
    Signed-off-by: Chris Metcalf [Tile]
    Signed-off-by: Michal Simek [Microblaze]
    Tested-by: Catalin Marinas [ARM]
    Acked-by: Thomas Gleixner
    Acked-by: Haavard Skinnemoen [AVR]
    Acked-by: Tony Luck [IA-64]
    Acked-by: Hirokazu Takata [M32R]
    Acked-by: Greg Ungerer [M68K/M68KNOMMU]
    Acked-by: Ralf Baechle [MIPS]
    Acked-by: Kyle McMartin [PA-RISC]
    Acked-by: Paul Mackerras [PowerPC]
    Acked-by: Martin Schwidefsky [S390]
    Acked-by: Chen Liqin [Score]
    Acked-by: Matt Fleming [SH]
    Acked-by: David S. Miller [Sparc]
    Acked-by: Chris Zankel [Xtensa]
    Reviewed-by: Richard Henderson [Alpha]
    Reviewed-by: Yoshinori Sato [H8300]
    Cc: starvik@axis.com [CRIS]
    Cc: jesper.nilsson@axis.com [CRIS]
    Cc: linux-cris-kernel@axis.com

    David Howells
     

04 Aug, 2010

9 commits

25 May, 2010

1 commit

13 Mar, 2010

1 commit

  • 290ba3aef   cris arch-v32: use generic ptrace_resume code ... Browse Code »

    Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT,
    PTRACE_KILL and PTRACE_SINGLESTEP. This implies defining
    arch_has_single_step in and implementing the
    user_enable_single_step and user_disable_single_step functions, which also
    causes the breakpoint information to be cleared on fork, which could be
    considered a bug fix.

    Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which
    it previously wasn't which is consistent with all architectures using the
    modern ptrace code.

    The way breakpoints are disabled is entirely inconsistent currently, I
    tried to make some sense of it, but I suspect all of the content of
    ptrace_disable should be moved into user_disable_single_step, this
    defintively needs some revisting as the current patch changes behaviour in
    not quite designed ways.

    Signed-off-by: Christoph Hellwig
    Cc: Oleg Nesterov
    Cc: Roland McGrath
    Cc: Mikael Starvik
    Cc: Jesper Nilsson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Hellwig
     

15 Dec, 2009

4 commits

  • e5931943d   locking: Convert raw_rwlock functions to arch_rwlock ... Browse Code »

    Name space cleanup for rwlock functions. No functional change.

    Signed-off-by: Thomas Gleixner
    Acked-by: Peter Zijlstra
    Acked-by: David S. Miller
    Acked-by: Ingo Molnar
    Cc: linux-arch@vger.kernel.org

    Thomas Gleixner
     
  • fb3a6bbc9   locking: Convert raw_rwlock to arch_rwlock ... Browse Code »

    Not strictly necessary for -rt as -rt does not have non sleeping
    rwlocks, but it's odd to not have a consistent naming convention.

    No functional change.

    Signed-off-by: Thomas Gleixner
    Acked-by: Peter Zijlstra
    Acked-by: David S. Miller
    Acked-by: Ingo Molnar
    Cc: linux-arch@vger.kernel.org

    Thomas Gleixner
     
  • 0199c4e68   locking: Convert __raw_spin* functions to arch_spin* ... Browse Code »

    Name space cleanup. No functional change.

    Signed-off-by: Thomas Gleixner
    Acked-by: Peter Zijlstra
    Acked-by: David S. Miller
    Acked-by: Ingo Molnar
    Cc: linux-arch@vger.kernel.org

    Thomas Gleixner
     
  • 445c89514   locking: Convert raw_spinlock to arch_spinlock ... Browse Code »

    The raw_spin* namespace was taken by lockdep for the architecture
    specific implementations. raw_spin_* would be the ideal name space for
    the spinlocks which are not converted to sleeping locks in preempt-rt.

    Linus suggested to convert the raw_ to arch_ locks and cleanup the
    name space instead of using an artifical name like core_spin,
    atomic_spin or whatever

    No functional change.

    Signed-off-by: Thomas Gleixner
    Acked-by: Peter Zijlstra
    Acked-by: David S. Miller
    Acked-by: Ingo Molnar
    Cc: linux-arch@vger.kernel.org

    Thomas Gleixner
     

01 Sep, 2009

1 commit

  • d8fb91e83   CRIS: add pgprot_noncached ... Browse Code »

    On CRIS, the high address bit controls caching, which means that
    we can add a pgprot_noncached() macro that sets this bit in the
    address.

    Signed-off-by: Arnd Bergmann
    Acked-by: Jesper Nilsson

    Arnd Bergmann
     

08 Jun, 2009

1 commit

  • b0903ee8e   CRIS: assignment/is equal confusion ... Browse Code »

    Somehow, the assignments of rw->lock got written as comparisons.
    The effect probably was that the read-write spinlocks never locked.
    However, since the locks are only used in CONFIG_SMP and SMP CRIS is
    experimental, it has never been identified as a problem.

    Signed-off-by: Roel Kluin
    Acked-by: Jesper Nilsson

    Roel Kluin
     

03 Apr, 2009

1 commit

  • f5f7eac41   Allow rwlocks to re-enable interrupts ... Browse Code »

    Pass the original flags to rwlock arch-code, so that it can re-enable
    interrupts if implemented for that architecture.

    Initially, make __raw_read_lock_flags and __raw_write_lock_flags stubs
    which just do the same thing as non-flags variants.

    Signed-off-by: Petr Tesarik
    Signed-off-by: Robin Holt
    Acked-by: Peter Zijlstra
    Cc:
    Acked-by: Ingo Molnar
    Cc: "Luck, Tony"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Robin Holt
     

15 Jan, 2009

1 commit

30 Oct, 2008

1 commit