Eric Lee / smarc-fsl-linux-kernel

30 Oct, 2011

1 commit

03 Aug, 2011

1 commit

  • 7dd6b3343   [S390] Add PSW restart shutdown trigger ... Browse Code »

    With this patch a new S390 shutdown trigger "restart" is added. If under
    z/VM "systerm restart" is entered or under the HMC the "PSW restart" button
    is pressed, the PSW located at 0 (31 bit) or 0x1a0 (64 bit) bit is loaded.
    Now we execute do_restart() that processes the restart action that is
    defined under /sys/firmware/shutdown_actions/on_restart. Currently the
    following actions are possible: reipl (default), stop, vmcmd, dump, and
    dump_reipl.

    Signed-off-by: Michael Holzheu
    Signed-off-by: Heiko Carstens

    Michael Holzheu
     

26 May, 2011

1 commit

  • f29c50419   maccess,probe_kernel: Make write/read src const void * ... Browse Code »

    The functions probe_kernel_write() and probe_kernel_read() do not modify
    the src pointer. Allow const pointers to be passed in without the need
    of a typecast.

    Acked-by: Mike Frysinger
    Acked-by: Heiko Carstens
    Acked-by: Martin Schwidefsky
    Signed-off-by: Steven Rostedt
    Link: http://lkml.kernel.org/r/1305824936.1465.4.camel@gandalf.stny.rr.com

    Steven Rostedt
     

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
     

24 Mar, 2010

1 commit

  • 92fe31329   [S390] zcore: CPU registers are not saved under LPAR ... Browse Code »

    To save the registers for all CPUs a sigp "store status" is done that
    stores the registers to address absolute zero. To access storage at
    absolute zero, normally the address of the prefix register of the
    accessing CPU has to be used. This does not work when large pages are
    active (currently only under LPAR). In order to fix that problem,
    instead of memcpy memcpy_real is used, which switches to real mode
    where prefixing works.

    Signed-off-by: Michael Holzheu
    Signed-off-by: Martin Schwidefsky

    Michael Holzheu
     

12 Jun, 2009

1 commit