The patch titled
PNPACPI: support shareable interrupts
has been added to the -mm tree. Its filename is
pnpacpi-support-shareable-interrupts.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: PNPACPI: support shareable interrupts
From: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
ACPI supplies a "shareable" indication, but PNPACPI ignores it. If a PNP
device uses a shared interrupt, request_irq() fails because the PNP driver
can't tell whether to supply SA_SHIRQ.
This patch allows PNP drivers to test
(pnp_irq_flags(dev, 0) & IORESOURCE_IRQ_SHAREABLE)
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
Cc: Adam Belay <ambx1@xxxxxxxxxx>
Cc: Matthieu Castet <castet.matthieu@xxxxxxx>
Cc: Li Shaohua <shaohua.li@xxxxxxxxx>
Cc: Len Brown <len.brown@xxxxxxxxx>
Cc: Russell King <rmk@xxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/pnp/pnpacpi/rsparser.c | 11 ++++++++---
include/linux/ioport.h | 1 +
2 files changed, 9 insertions(+), 3 deletions(-)
diff -puN drivers/pnp/pnpacpi/rsparser.c~pnpacpi-support-shareable-interrupts drivers/pnp/pnpacpi/rsparser.c
--- a/drivers/pnp/pnpacpi/rsparser.c~pnpacpi-support-shareable-interrupts
+++ a/drivers/pnp/pnpacpi/rsparser.c
@@ -74,7 +74,7 @@ static void decode_irq_flags(int flag, i
static void
pnpacpi_parse_allocated_irqresource(struct pnp_resource_table *res, u32 gsi,
- int triggering, int polarity)
+ int triggering, int polarity, int shareable)
{
int i = 0;
int irq;
@@ -95,6 +95,9 @@ pnpacpi_parse_allocated_irqresource(stru
return;
}
+ if (shareable)
+ res->irq_resource[i].flags |= IORESOURCE_IRQ_SHAREABLE;
+
res->irq_resource[i].start = irq;
res->irq_resource[i].end = irq;
pcibios_penalize_isa_irq(irq, 1);
@@ -197,7 +200,8 @@ static acpi_status pnpacpi_allocated_res
pnpacpi_parse_allocated_irqresource(res_table,
res->data.irq.interrupts[i],
res->data.irq.triggering,
- res->data.irq.polarity);
+ res->data.irq.polarity,
+ res->data.irq.sharable);
}
break;
@@ -263,7 +267,8 @@ static acpi_status pnpacpi_allocated_res
pnpacpi_parse_allocated_irqresource(res_table,
res->data.extended_irq.interrupts[i],
res->data.extended_irq.triggering,
- res->data.extended_irq.polarity);
+ res->data.extended_irq.polarity,
+ res->data.extended_irq.sharable);
}
break;
diff -puN include/linux/ioport.h~pnpacpi-support-shareable-interrupts include/linux/ioport.h
--- a/include/linux/ioport.h~pnpacpi-support-shareable-interrupts
+++ a/include/linux/ioport.h
@@ -55,6 +55,7 @@ struct resource_list {
#define IORESOURCE_IRQ_LOWEDGE (1<<1)
#define IORESOURCE_IRQ_HIGHLEVEL (1<<2)
#define IORESOURCE_IRQ_LOWLEVEL (1<<3)
+#define IORESOURCE_IRQ_SHAREABLE (1<<4)
/* ISA PnP DMA specific bits (IORESOURCE_BITS) */
#define IORESOURCE_DMA_TYPE_MASK (3<<0)
_
Patches currently in -mm which might be from bjorn.helgaas@xxxxxx are
origin.patch
irq-use-sa_percpu_irq-not-irq_per_cpu-for-irqactionflags.patch
irq-warning-message-cleanup.patch
git-acpi.patch
pnpacpi-reject-acpi_producer-resources.patch
pnpacpi-support-shareable-interrupts.patch
2.6-sony_acpi4.patch
git-klibc.patch
e100-disable-interrupts-at-boot.patch
-
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