From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: mingo@elte.hu
Cc: linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
dwalker@mvista.com
Subject: [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers
Date: Sun, 19 Nov 2006 22:43:34 +0300 [thread overview]
Message-ID: <200611192243.34850.sshtylyov@ru.mvista.com> (raw)
As fasteoi type chips never had to define their ack() method before the
recent Ingo's change to handle_fasteoi_irq(), any attempt to execute handler
in thread resulted in the kernel crash. So, define their ack() methods to be
the same as their eoi() ones...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
---
Since there was no feedback on three solutions I suggested, I'm going the way
of least resistance and making the fasteoi type chips behave the way that
handle_fasteoi_irq() is expecting from them...
arch/powerpc/platforms/cell/interrupt.c | 1 +
arch/powerpc/platforms/iseries/irq.c | 1 +
arch/powerpc/platforms/pseries/xics.c | 2 ++
arch/powerpc/sysdev/mpic.c | 1 +
4 files changed, 5 insertions(+)
Index: linux-2.6/arch/powerpc/platforms/cell/interrupt.c
===================================================================
--- linux-2.6.orig/arch/powerpc/platforms/cell/interrupt.c
+++ linux-2.6/arch/powerpc/platforms/cell/interrupt.c
@@ -83,6 +83,7 @@ static struct irq_chip iic_chip = {
.typename = " CELL-IIC ",
.mask = iic_mask,
.unmask = iic_unmask,
+ .ack = iic_eoi,
.eoi = iic_eoi,
};
Index: linux-2.6/arch/powerpc/platforms/iseries/irq.c
===================================================================
--- linux-2.6.orig/arch/powerpc/platforms/iseries/irq.c
+++ linux-2.6/arch/powerpc/platforms/iseries/irq.c
@@ -282,6 +282,7 @@ static struct irq_chip iseries_pic = {
.shutdown = iseries_shutdown_IRQ,
.unmask = iseries_enable_IRQ,
.mask = iseries_disable_IRQ,
+ .ack = iseries_end_IRQ,
.eoi = iseries_end_IRQ
};
Index: linux-2.6/arch/powerpc/platforms/pseries/xics.c
===================================================================
--- linux-2.6.orig/arch/powerpc/platforms/pseries/xics.c
+++ linux-2.6/arch/powerpc/platforms/pseries/xics.c
@@ -477,6 +477,7 @@ static struct irq_chip xics_pic_direct =
.startup = xics_startup,
.mask = xics_mask_irq,
.unmask = xics_unmask_irq,
+ .ack = xics_eoi_direct,
.eoi = xics_eoi_direct,
.set_affinity = xics_set_affinity
};
@@ -487,6 +488,7 @@ static struct irq_chip xics_pic_lpar = {
.startup = xics_startup,
.mask = xics_mask_irq,
.unmask = xics_unmask_irq,
+ .ack = xics_eoi_lpar,
.eoi = xics_eoi_lpar,
.set_affinity = xics_set_affinity
};
Index: linux-2.6/arch/powerpc/sysdev/mpic.c
===================================================================
--- linux-2.6.orig/arch/powerpc/sysdev/mpic.c
+++ linux-2.6/arch/powerpc/sysdev/mpic.c
@@ -718,6 +718,7 @@ static int mpic_set_irq_type(unsigned in
static struct irq_chip mpic_irq_chip = {
.mask = mpic_mask_irq,
.unmask = mpic_unmask_irq,
+ .ack = mpic_end_irq,
.eoi = mpic_end_irq,
.set_type = mpic_set_irq_type,
};
next reply other threads:[~2006-11-19 19:42 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-19 19:43 Sergei Shtylyov [this message]
2006-11-19 20:00 ` [PATCH] 2.6.18-rt7: PowerPC: fix breakage in threaded fasteoi type IRQ handlers Benjamin Herrenschmidt
2006-11-19 20:04 ` Benjamin Herrenschmidt
2006-11-19 20:11 ` Sergei Shtylyov
2006-11-19 20:06 ` Ingo Molnar
2006-11-19 20:19 ` Benjamin Herrenschmidt
2006-11-19 20:23 ` Ingo Molnar
2006-11-19 20:31 ` Sergei Shtylyov
2006-11-19 20:36 ` Benjamin Herrenschmidt
2006-11-19 20:42 ` Sergei Shtylyov
2006-11-19 20:45 ` Benjamin Herrenschmidt
2006-11-19 20:49 ` Benjamin Herrenschmidt
2006-11-20 1:16 ` Benjamin Herrenschmidt
2006-11-20 10:01 ` Ingo Molnar
2006-11-20 15:29 ` Sergei Shtylyov
2006-11-20 16:56 ` Ingo Molnar
2006-11-20 17:03 ` Sergei Shtylyov
2006-11-20 17:26 ` Ingo Molnar
2006-11-20 17:55 ` Ingo Molnar
2006-11-20 18:20 ` Daniel Walker
2006-11-20 18:29 ` Ingo Molnar
2006-11-20 18:30 ` Sergei Shtylyov
2006-11-20 19:10 ` Ingo Molnar
2006-11-20 19:11 ` Ingo Molnar
2006-11-20 19:18 ` Sergei Shtylyov
2006-11-20 19:24 ` Sergei Shtylyov
2006-11-20 19:23 ` Ingo Molnar
2006-11-20 20:11 ` Benjamin Herrenschmidt
2006-11-20 20:09 ` Benjamin Herrenschmidt
2006-11-20 16:25 ` Daniel Walker
2006-11-20 16:42 ` Ingo Molnar
2006-11-20 17:01 ` Daniel Walker
2006-11-20 20:07 ` Benjamin Herrenschmidt
2006-11-19 20:26 ` Sergei Shtylyov
2006-11-19 20:32 ` Benjamin Herrenschmidt
2006-11-19 20:40 ` Sergei Shtylyov
2006-11-19 20:41 ` Benjamin Herrenschmidt
2006-11-19 20:52 ` Sergei Shtylyov
2006-11-19 21:08 ` Benjamin Herrenschmidt
2006-11-20 15:46 ` Sergei Shtylyov
2006-11-19 20:44 ` Sergei Shtylyov
2006-11-19 20:48 ` Benjamin Herrenschmidt
2007-05-17 13:20 ` [PATCH 2.6.21-rt2] PowerPC: revert fix for threaded fasteoi " Sergei Shtylyov
2007-07-12 16:47 ` Sergei Shtylyov
2007-07-12 16:52 ` Thomas Gleixner
2007-07-13 17:19 ` Sergei Shtylyov
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