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authorMichael Ellerman <michael@ellerman.id.au>2007-04-18 19:39:22 +1000
committerGreg Kroah-Hartman <gregkh@suse.de>2007-05-02 19:02:38 -0700
commit032de8e2fe3c0eec5fb0ffe4d38aa602dad397dc (patch)
treeb9ad28ab3642c2dfba8e059fc72bd8e86c667449 /include/linux/msi.h
parent9c8313343c83c0ca731ceb8d2a4ab1e022ed9c94 (diff)
downloadop-kernel-dev-032de8e2fe3c0eec5fb0ffe4d38aa602dad397dc.zip
op-kernel-dev-032de8e2fe3c0eec5fb0ffe4d38aa602dad397dc.tar.gz
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.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 494627a..94bb46d 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);
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