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| author | Ian Campbell <ian.campbell@citrix.com> | 2011-02-18 16:43:32 +0000 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2011-03-10 14:44:40 -0500 |
| commit | bf480d952bcf25e8ff7e95d2a23964107513ac51 (patch) | |
| tree | b2d1a75e39bfdf82021ccdefb5f9613a17087040 /include/xen/events.h | |
| parent | 5cad61a6ba6f4956a218ffbb64cafcc1daefaca0 (diff) | |
| download | op-kernel-dev-bf480d952bcf25e8ff7e95d2a23964107513ac51.zip op-kernel-dev-bf480d952bcf25e8ff7e95d2a23964107513ac51.tar.gz | |
xen: events: separate MSI PIRQ allocation from PIRQ binding to IRQ
Split the binding aspect of xen_allocate_pirq_msi out into a new
xen_bind_pirq_to_irq function.
In xen_hvm_setup_msi_irq when allocating a pirq write the MSI message
to signal the PIRQ as soon as the pirq is obtained. There is no way to
free the pirq back so if the subsequent binding to an IRQ fails we
want to ensure that we will reuse the PIRQ next time rather than leak
it.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/xen/events.h')
| -rw-r--r-- | include/xen/events.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/xen/events.h b/include/xen/events.h index f70536a..18bf825 100644 --- a/include/xen/events.h +++ b/include/xen/events.h @@ -75,7 +75,9 @@ int xen_allocate_pirq(unsigned gsi, int shareable, char *name); int xen_map_pirq_gsi(unsigned pirq, unsigned gsi, int shareable, char *name); #ifdef CONFIG_PCI_MSI -int xen_allocate_pirq_msi(char *name, int *pirq, int alloc_pirq); +int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc); +int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc, + int pirq, const char *name); int xen_create_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int type); #endif |
