| Message ID | 1424052673-22974-1-git-send-email-jiang.liu@linux.intel.com (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
On Mon, Feb 16, 2015 at 10:11:13AM +0800, Jiang Liu wrote: > Commit b568b8601f05 ("Treat SCI interrupt as normal GSI interrupt") > accidently removes support of legacy PIC interrupt when fixing a > regression for Xen, which causes a nasty regression on HP/Compaq > nc6000 where we fail to register the ACPI interrupt, and thus > lose eg. thermal notifications leading a potentially overheated > machine. > > So reintroduce support of legacy PIC based ACPI SCI interrupt. > > Reported-by: Ville Syrjälä <syrjala@sci.fi> > Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> > --- > Hi Ville, > Could you please help to try this patch instead of revert commit > b568b8601f05? Yep, this seems to fix it. Thanks. Tested-by: Ville Syrjälä <syrjala@sci.fi> Cc: <stable@vger.kernel.org> # 3.19 That's one regression fixed on this machine, time to go bisect the next one... > Thanks! > Gerry > --- > arch/x86/kernel/acpi/boot.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c > index ae97ed0873c6..3d525c6124f6 100644 > --- a/arch/x86/kernel/acpi/boot.c > +++ b/arch/x86/kernel/acpi/boot.c > @@ -613,6 +613,11 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) > { > int rc, irq, trigger, polarity; > > + if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { > + *irqp = gsi; > + return 0; > + } > + > rc = acpi_get_override_irq(gsi, &trigger, &polarity); > if (rc == 0) { > trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE; > -- > 1.7.10.4 >
On Mon 2015-02-16 10:11:13, Jiang Liu wrote: > Commit b568b8601f05 ("Treat SCI interrupt as normal GSI interrupt") > accidently removes support of legacy PIC interrupt when fixing a accidentaly? > regression for Xen, which causes a nasty regression on HP/Compaq > nc6000 where we fail to register the ACPI interrupt, and thus > lose eg. thermal notifications leading a potentially overheated > machine. > > So reintroduce support of legacy PIC based ACPI SCI interrupt. > > Reported-by: Ville Syrjälä <syrjala@sci.fi> > Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Acked-by: Pavel Machek <pavel@ucw.cz>
On Monday, February 16, 2015 08:36:37 PM Pavel Machek wrote: > On Mon 2015-02-16 10:11:13, Jiang Liu wrote: > > Commit b568b8601f05 ("Treat SCI interrupt as normal GSI interrupt") > > accidently removes support of legacy PIC interrupt when fixing a > > accidentaly? > > > regression for Xen, which causes a nasty regression on HP/Compaq > > nc6000 where we fail to register the ACPI interrupt, and thus > > lose eg. thermal notifications leading a potentially overheated > > machine. > > > > So reintroduce support of legacy PIC based ACPI SCI interrupt. > > > > Reported-by: Ville Syrjälä <syrjala@sci.fi> > > Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> > > Acked-by: Pavel Machek <pavel@ucw.cz> Is anyone taking care of this one or should I take it? Ingo, Peter?
On Tue, Feb 17, 2015 at 06:55:14PM +0100, Rafael J. Wysocki wrote: > On Monday, February 16, 2015 08:36:37 PM Pavel Machek wrote: > > On Mon 2015-02-16 10:11:13, Jiang Liu wrote: > > > Commit b568b8601f05 ("Treat SCI interrupt as normal GSI interrupt") > > > accidently removes support of legacy PIC interrupt when fixing a > > > > accidentaly? > > > > > regression for Xen, which causes a nasty regression on HP/Compaq > > > nc6000 where we fail to register the ACPI interrupt, and thus > > > lose eg. thermal notifications leading a potentially overheated > > > machine. > > > > > > So reintroduce support of legacy PIC based ACPI SCI interrupt. > > > > > > Reported-by: Ville Syrjälä <syrjala@sci.fi> > > > Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> > > > > Acked-by: Pavel Machek <pavel@ucw.cz> > > Is anyone taking care of this one or should I take it? > > Ingo, Peter? Gots it, thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index ae97ed0873c6..3d525c6124f6 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -613,6 +613,11 @@ int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp) { int rc, irq, trigger, polarity; + if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) { + *irqp = gsi; + return 0; + } + rc = acpi_get_override_irq(gsi, &trigger, &polarity); if (rc == 0) { trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
Commit b568b8601f05 ("Treat SCI interrupt as normal GSI interrupt") accidently removes support of legacy PIC interrupt when fixing a regression for Xen, which causes a nasty regression on HP/Compaq nc6000 where we fail to register the ACPI interrupt, and thus lose eg. thermal notifications leading a potentially overheated machine. So reintroduce support of legacy PIC based ACPI SCI interrupt. Reported-by: Ville Syrjälä <syrjala@sci.fi> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> --- Hi Ville, Could you please help to try this patch instead of revert commit b568b8601f05? Thanks! Gerry --- arch/x86/kernel/acpi/boot.c | 5 +++++ 1 file changed, 5 insertions(+)