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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-02-24 14:20:12 -0500 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-04-14 11:17:55 -0400 |
| commit | e6197acc726ab3baa60375a5891d58c2ee87e0f3 (patch) | |
| tree | 8403be98a0c6a3e2e845c30a4a028be2391a20e7 | |
| parent | c7c2c3a28657cfdcef50c02b18ccca3761209e17 (diff) | |
| download | kernel_samsung_aries-e6197acc726ab3baa60375a5891d58c2ee87e0f3.zip kernel_samsung_aries-e6197acc726ab3baa60375a5891d58c2ee87e0f3.tar.gz kernel_samsung_aries-e6197acc726ab3baa60375a5891d58c2ee87e0f3.tar.bz2 | |
xen/irq: Export 'xen_pirq_from_irq' function.
We need this to find the real Xen PIRQ value for a device
that requests an MSI or MSI-X. In the past we used
'xen_gsi_from_irq' since that function would return
an Xen PIRQ or GSI depending on the provided IRQ. Now that
we have seperated that we need to use the correct
function.
[v2: Deal with rebase on stable/irq.cleanup]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
| -rw-r--r-- | drivers/xen/events.c | 6 | ||||
| -rw-r--r-- | include/xen/events.h | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/xen/events.c b/drivers/xen/events.c index 0ac7a14..e4e8e9a 100644 --- a/drivers/xen/events.c +++ b/drivers/xen/events.c @@ -763,6 +763,12 @@ out: return irq; } + +int xen_pirq_from_irq(unsigned irq) +{ + return pirq_from_irq(irq); +} +EXPORT_SYMBOL_GPL(xen_pirq_from_irq); int bind_evtchn_to_irq(unsigned int evtchn) { int irq; diff --git a/include/xen/events.h b/include/xen/events.h index 932e540..9af21e1 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -95,6 +95,9 @@ int xen_destroy_irq(int irq); /* Return irq from pirq */ int xen_irq_from_pirq(unsigned pirq); +/* Return the pirq allocated to the irq. */ +int xen_pirq_from_irq(unsigned irq); + /* Determine whether to ignore this IRQ if it is passed to a guest. */ int xen_test_irq_shared(int irq); |