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| author | Michael Ellerman <michael@ellerman.id.au> | 2007-04-18 19:39:22 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-05-02 19:02:38 -0700 |
| commit | 032de8e2fe3c0eec5fb0ffe4d38aa602dad397dc (patch) | |
| tree | b9ad28ab3642c2dfba8e059fc72bd8e86c667449 /include/linux/msi.h | |
| parent | 9c8313343c83c0ca731ceb8d2a4ab1e022ed9c94 (diff) | |
| download | talos-op-linux-032de8e2fe3c0eec5fb0ffe4d38aa602dad397dc.tar.gz talos-op-linux-032de8e2fe3c0eec5fb0ffe4d38aa602dad397dc.zip | |
MSI: Give archs the option to free all MSI/Xs at once.
This patch introduces an optional function, arch_teardown_msi_irqs(),
which gives an arch the opportunity to do per-device teardown for
MSI/X. If that's not required, the default version simply calls
arch_teardown_msi_irq() for each msi irq required.
arch_teardown_msi_irqs() is simply passed a pdev, attached to the pdev
is a list of msi_descs, it is up to the arch to free the irq associated
with each of these as appropriate.
For archs that _don't_ implement arch_teardown_msi_irqs(), all msi_descs
with irq == 0 are considered unallocated, and the arch teardown routine
is not called on them.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/msi.h')
| -rw-r--r-- | include/linux/msi.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h index 494627ae021f..94bb46d82efd 100644 --- a/include/linux/msi.h +++ b/include/linux/msi.h @@ -42,6 +42,7 @@ struct msi_desc { int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc); void arch_teardown_msi_irq(unsigned int irq); extern int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); +extern void arch_teardown_msi_irqs(struct pci_dev *dev); extern int arch_msi_check_device(struct pci_dev* dev, int nvec, int type); |
