linux.git/arch/mips/kernel/irq_cpu.c, branch master

MIPS/IRQCHIP: Move irq_chip from arch/mips to drivers/irqchip.

2015-06-21T19:52:50+00:00

While at it, rename it because in drivers/irqchip no longer every CPU is
a MIPS.

Signed-off-by: Ralf Baechle

MIPS: IRQ: Fix disable_irq on CPU IRQs

2015-01-16T13:03:17+00:00

If the irq_chip does not define .irq_disable, any call to disable_irq
will defer disabling the IRQ until it fires while marked as disabled.
This assumes that the handler function checks for this condition, which
handle_percpu_irq does not. In this case, calling disable_irq leads to
an IRQ storm, if the interrupt fires while disabled.

This optimization is only useful when disabling the IRQ is slow, which
is not true for the MIPS CPU IRQ.

Disable this optimization by implementing .irq_disable and .irq_enable

Signed-off-by: Felix Fietkau 
Cc: stable@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/8949/
Signed-off-by: Ralf Baechle

MIPS: Set vint handler when mapping CPU interrupts

2014-11-24T06:44:52+00:00

When mapping an interrupt in the CPU IRQ domain, set the vint handler
for that interrupt if the CPU uses vectored interrupt handling.

Signed-off-by: Andrew Bresticker 
Reviewed-by: Qais Yousef 
Tested-by: Qais Yousef 
Cc: Thomas Gleixner 
Cc: Jason Cooper 
Cc: Andrew Bresticker 
Cc: Jeffrey Deans 
Cc: Markos Chandras 
Cc: Paul Burton 
Cc: Qais Yousef 
Cc: Jonas Gorski 
Cc: John Crispin 
Cc: David Daney 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7802/
Signed-off-by: Ralf Baechle

MIPS: Provide a generic plat_irq_dispatch

2014-11-24T06:44:52+00:00

For platforms which boot with device-tree or have correctly chained
all external interrupt controllers, a generic plat_irq_dispatch() can
be used.  Implement a plat_irq_dispatch() which simply handles all the
pending interrupts as reported by C0_Cause.

Signed-off-by: Andrew Bresticker 
Reviewed-by: Qais Yousef 
Tested-by: Qais Yousef 
Cc: Thomas Gleixner 
Cc: Jason Cooper 
Cc: Andrew Bresticker 
Cc: Jeffrey Deans 
Cc: Markos Chandras 
Cc: Paul Burton 
Cc: Qais Yousef 
Cc: Jonas Gorski 
Cc: John Crispin 
Cc: David Daney 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7801/
Signed-off-by: Ralf Baechle

MIPS: Rename mips_cpu_intc_init() -> mips_cpu_irq_of_init()

2014-11-24T06:44:52+00:00

mips_cpu_intc_init() is used for DT-based initialization of the CPU
IRQ domain.  Give it a more appropriate name.

Signed-off-by: Andrew Bresticker 
Reviewed-by: Qais Yousef 
Tested-by: Qais Yousef 
Cc: Thomas Gleixner 
Cc: Jason Cooper 
Cc: Andrew Bresticker 
Cc: Jeffrey Deans 
Cc: Markos Chandras 
Cc: Paul Burton 
Cc: Qais Yousef 
Cc: Jonas Gorski 
Cc: John Crispin 
Cc: David Daney 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7800/
Signed-off-by: Ralf Baechle

MIPS: Always use IRQ domains for CPU IRQs

2014-11-24T06:44:51+00:00

Use an IRQ domain for the 8 CPU IRQs in both the DT and non-DT cases.

Signed-off-by: Andrew Bresticker 
Reviewed-by: Qais Yousef 
Tested-by: Qais Yousef 
Cc: Thomas Gleixner 
Cc: Jason Cooper 
Cc: Andrew Bresticker 
Cc: Jeffrey Deans 
Cc: Markos Chandras 
Cc: Paul Burton 
Cc: Qais Yousef 
Cc: Jonas Gorski 
Cc: John Crispin 
Cc: David Daney 
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/7799/
Signed-off-by: Ralf Baechle

MIPS: Panic messages should not end in \n.

2013-10-29T20:24:19+00:00

Panic() is going to add a \n itself and it's annoying if a panic message rolls
of the screen on a device with no scrollback.

Signed-off-by: Ralf Baechle

Merge branch 'mips-next-3.9' of git://git.linux-mips.org/pub/scm/john/linux-john into mips-for-linux-next

2013-02-21T11:51:33+00:00

MIPS: add irqdomain support for the CPU IRQ controller

2013-02-17T00:25:34+00:00

Add code to load a irq_domain for the MIPS IRQ controller from a devicetree
file.

Signed-off-by: Gabor Juhos 
Signed-off-by: John Crispin 
Acked-by: David Daney 
Patchwork: http://patchwork.linux-mips.org/patch/4902/

MIPS: Whitespace cleanup.

2013-02-01T09:00:22+00:00

Having received another series of whitespace patches I decided to do this
once and for all rather than dealing with this kind of patches trickling
in forever.

Signed-off-by: Ralf Baechle