linux-toradex.git/arch/alpha/kernel/irq_alpha.c, branch v4.6-rc5

alpha: Use qemu+cserve provided high-res clock and alarm.

2013-11-17T00:33:21+00:00

QEMU provides a high-resolution timer and alarm; use this for
a clock source and clock event source when available.

Signed-off-by: Richard Henderson

alpha: Switch to GENERIC_CLOCKEVENTS

2013-11-17T00:33:19+00:00

This allows us to get rid of some hacky code for SMP.  Get rid of
some cycle counter hackery that's now handled by generic code via
clocksource + clock_event_device objects.

Signed-off-by: Richard Henderson

alpha: Use handle_percpu_irq for the timer interrupt

2013-07-19T20:54:26+00:00

Signed-off-by: Matt Turner 
Signed-off-by: Richard Henderson

alpha: irq: remove deprecated use of IRQF_DISABLED

2013-04-07T19:59:30+00:00

Interrupt handlers are always invoked with interrupts disabled, so
remove all uses of the deprecated IRQF_DISABLED flag.

Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Reviewed-by: Matt Turner 
Signed-off-by: Will Deacon 
Signed-off-by: Michael Cree 
Signed-off-by: Linus Torvalds

alpha: irq: run all handlers with interrupts disabled

2013-04-07T19:59:30+00:00

Linux has expected that interrupt handlers are executed with local
interrupts disabled for a while now, so ensure that this is the case on
Alpha even for non-device interrupts such as IPIs.

Without this patch, secondary boot results in the following backtrace:

  warning: at kernel/softirq.c:139 __local_bh_enable+0xb8/0xd0()
  trace:
    __local_bh_enable+0xb8/0xd0
    irq_enter+0x74/0xa0
    scheduler_ipi+0x50/0x100
    handle_ipi+0x84/0x260
    do_entint+0x1ac/0x2e0
    irq_exit+0x60/0xa0
    handle_irq+0x98/0x100
    do_entint+0x2c8/0x2e0
    ret_from_sys_call+0x0/0x10
    load_balance+0x3e4/0x870
    cpu_idle+0x24/0x80
    rcu_eqs_enter_common.isra.38+0x0/0x120
    cpu_idle+0x40/0x80
    rest_init+0xc0/0xe0
    _stext+0x1c/0x20

A similar dump occurs if you try to reboot using magic-sysrq.

Cc: Richard Henderson 
Cc: Ivan Kokshaysky 
Cc: Matt Turner 
Reviewed-by: Matt Turner 
Signed-off-by: Will Deacon 
Signed-off-by: Michael Cree 
Signed-off-by: Linus Torvalds

Disintegrate asm/system.h for Alpha

2012-03-28T17:11:12+00:00

Disintegrate asm/system.h for Alpha.

Signed-off-by: David Howells 
cc: linux-alpha@vger.kernel.org

alpha: Fix RTC interrupt setup.

2011-04-17T21:41:30+00:00

Following commit 091738a266fc ("genirq: Remove real old transition
functions") we removed an automatic conversion of no_irq_chip to
dummy_irq_chip.  This change needs to be propagated back into the alpha
backend.

Signed-off-by: Richard Henderson 
Signed-off-by: Linus Torvalds

alpha: Convert to new irq function names

2011-03-29T12:47:58+00:00

Scripted with coccinelle.

Signed-off-by: Thomas Gleixner

alpha: irq: Remove pointless irq status manipulation

2011-03-02T19:57:59+00:00

The irq descriptors are initialized IRQ_DISABLED in the generic
code. No need to fiddle with them.

Signed-off-by: Thomas Gleixner 
Signed-off-by: Matt Turner

alpha: kill off alpha_do_IRQ

2011-01-17T04:42:13+00:00

Good riddance... Nuke a pile of redundant handlers that the
generic code takes care of as well.

Tested-by: Michael Cree 
Signed-off-by: Kyle McMartin 
Signed-off-by: Matt Turner