linux.git/arch/powerpc/sysdev/mpic.c, branch v2.6.16

[PATCH] powerpc: Fix some MPIC + HT APIC buglets

2006-02-24T00:36:37+00:00

Do disable, not enable, the HT APIC IRQ in the function that is
supposed to.
Enable the MPIC IRQ before enabling the downstream APIC IRQ, avoids
potentially losing an interrupt.

Signed-off-by: Segher Boessenkool 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[PATCH] powerpc: Experimental support for new G5 Macs (#2)

2006-01-09T04:03:17+00:00

This adds some very basic support for the new machines, including the
Quad G5 (tested), and other new dual core based machines and iMac G5
iSight (untested). This is still experimental !  There is no thermal
control yet, there is no proper handing of MSIs, etc.. but it
boots, I have all 4 cores up on my machine. Compared to the previous
version of this patch, this one adds DART IOMMU support for the U4
chipset and thus should work fine on setups with more than 2Gb of RAM.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[PATCH] powerpc: Update MPIC workarounds

2006-01-09T03:53:59+00:00

Cleanup the MPIC IO-APIC workarounds, make them a bit more generic,
smaller and faster.

Signed-off-by: Segher Boessenkool 
Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[PATCH] powerpc32: fix definition of distribute_irqs

2006-01-09T03:51:43+00:00

When we select ppc32 under the powerpc architecture we get the
error below.  This relates to defining distribute_irqs when this
configuratiom option is undefined.

      CC      arch/powerpc/sysdev/mpic.o
    .../arch/powerpc/sysdev/mpic.c: In function `mpic_setup_this_cpu':
    .../arch/powerpc/sysdev/mpic.c:788: error: `CONFIG_IRQ_ALL_CPUS'
	undeclared (first use in this function)

Signed-off-by: Andy Whitcroft 
Signed-off-by: Paul Mackerras

[PATCH] powerpc: Fix setting MPIC priority

2005-11-19T03:19:13+00:00

Trying to set the priority would just disable the interrupt due to an
incorrect mask used. We rarely use that call, in fact, I think only in
the powermac code for the cmd-power key combo that triggers xmon. So it
got unnoticed for a while.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

powerpc: Fix incorrect timer register addresses in mpic.c

2005-10-26T11:55:33+00:00

We were computing the wrong address for the MPIC timer registers,
so when we went to initialize them we would have been hitting some
unrelated ioremap... oops.

Signed-off-by: Paul Mackerras

powerpc: Move smp_mpic_message_pass into mpic.c

2005-10-20T07:09:51+00:00

Having it here rather than in arch/ppc64/kernel/smp.c means that
we can use it on 32-bit SMP systems easily with ARCH=powerpc.

Signed-off-by: Paul Mackerras

powerpc: Get merged kernel to compile and run on 32-bit SMP powermac.

2005-10-01T03:49:08+00:00

This updates the powermac SMP code to use the mpic driver instead of
the openpic driver and fixes the SMP-dependent context switch code.
We had a subtle bug where we were using interrupt numbers 256-259 for
IPIs, but ppc32 had NR_IRQS = 256.  Moved the IPIs down to use interrupt
numbers 252-255 instead.

Signed-off-by: Paul Mackerras

powerpc: Merge enough to start building in arch/powerpc.

2005-09-26T06:04:21+00:00

This creates the directory structure under arch/powerpc and a bunch
of Kconfig files.  It does a first-cut merge of arch/powerpc/mm,
arch/powerpc/lib and arch/powerpc/platforms/powermac.  This is enough
to build a 32-bit powermac kernel with ARCH=powerpc.

For now we are getting some unmerged files from arch/ppc/kernel and
arch/ppc/syslib, or arch/ppc64/kernel.  This makes some minor changes
to files in those directories and files outside arch/powerpc.

The boot directory is still not merged.  That's going to be interesting.

Signed-off-by: Paul Mackerras