linux-toradex.git/arch/sparc/kernel/irq.h, branch v3.12.49

sparc32: remove runtime btfix support

2012-05-14T21:05:09+00:00

- remove all uses of btfixup header
- remove the btfixup header
- remove the btfixup code

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: remove remaining users of btfixup

2012-05-14T21:05:08+00:00

Use sparc_config to hold the last two function pointers.  There was no
point generating dedicated _ops structures only for these.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: move smp ipi to method ops

2012-05-14T21:05:07+00:00

I ended up renaming set_cpu_int to send_ipi to
be consistent all way around.
send_ipi was moved to the *_smp.c files so
we could call the relevant method direct,
without any _ops indirection.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: drop unused clear_cpu_int

2012-05-13T19:51:57+00:00

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: drop unused set_irq_udt

2012-05-13T19:51:56+00:00

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: Trivial removal of sun4c references in comments.

2012-05-12T07:35:45+00:00

I left some around, like the ones in the openprom headers, since
we need to think about which pieces of those datastructures and
code we can completely toss now.

Signed-off-by: David S. Miller

sparc32: generic clockevent support

2012-04-15T17:28:50+00:00

The kernel uses l14 timers as clockevents. l10 timer is used
as clocksource if platform master_l10_counter isn't constantly
zero. The clocksource is continuous, so it's possible to use
high resolution timers. l10 timer is also used as clockevent
on UP configurations.

This realization is for sun4m, sun4d, sun4c, microsparc-IIep
and LEON platforms. The appropriate LEON changes was made by
Konrad Eisele.

In case of sun4m's oneshot mode, profile irq is zeroed in
smp4m_percpu_timer_interrupt(). It is maybe
needless (double, triple etc overflow does nothing).

sun4d is able to have oneshot mode too, but I haven't
any way to test it. So code of its percpu timer handler
is made as much equal to the current code as possible.

The patch is tested on sun4m box in SMP mode by me,
and tested by Konrad on leon in up mode (leon smp
is broken atm - due to other reasons).

Signed-off-by: Tkhai Kirill 
Tested-by: Konrad Eisele  [leon up]
[sam: revised patch to provide generic support for leon]
Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc32: rename sparc_irq_config to sparc_config

2012-04-15T17:28:49+00:00

This struct holds platform specific config and is thus not
limited to irq stuff.
Do not let the name confuse us to think this is irq only.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

Disintegrate asm/system.h for Sparc

2012-03-28T17:30:03+00:00

Disintegrate asm/system.h for Sparc.

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

sparc32,sun4d: Change IPI IRQ level to prevent collision between IPI and timer interrupt

2011-08-29T16:20:40+00:00

On Sun4d systems running in SMP mode, IRQ 14 is used for timer interrupts
and has a specialized interrupt handler. IPI is currently set to use IRQ 14
as well, which causes it to trigger the timer interrupt handler, and not the
IPI interrupt handler.

The IPI interrupt is therefore changed to IRQ 13, which is the highest
normally handled interrupt. This IRQ is also used for SBUS interrupts,
however there is nothing in the IPI/SBUS interrupt handlers that indicate
that they will not handle sharing the interrupt.
(IRQ 13 is indicated as audio interrupt, which is unlikely to be found in a
sun4d system)

Signed-off-by: Kjetil Oftedal 
Signed-off-by: David S. Miller