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authorMichael Ellerman <michael@ellerman.id.au>2007-05-08 12:58:34 +1000
committerPaul Mackerras <paulus@samba.org>2007-05-08 13:40:31 +1000
commitdf87ef5508b40fc655b6c4771be31741d8ec1596 (patch)
treedf6062876a6abc11bdb5accf47f1d51f01a2ed11 /include
parentf728b5c3a599d0410a079f447f921a10be7d59d6 (diff)
downloadop-kernel-dev-df87ef5508b40fc655b6c4771be31741d8ec1596.zip
op-kernel-dev-df87ef5508b40fc655b6c4771be31741d8ec1596.tar.gz
[POWERPC] PowerPC MSI infrastructure
This provides the architecture specific hooks to support MSI on powerpc. We implement the newly added arch_setup_msi_irqs() and arch_teardown_msi_irqs(), and then delegate to ppc_md routines. Platforms that don't implement MSI will leave the ppc_md calls blank, arch_msi_check_device() will detect this and return ENOSYS. Drivers should detect this error and continue to use LSI. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/machdep.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index daa08b1..6cf1a83 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -120,6 +120,14 @@ struct machdep_calls {
/* To setup PHBs when using automatic OF platform driver for PCI */
int (*pci_setup_phb)(struct pci_controller *host);
+#ifdef CONFIG_PCI_MSI
+ int (*msi_check_device)(struct pci_dev* dev,
+ int nvec, int type);
+ int (*setup_msi_irqs)(struct pci_dev *dev,
+ int nvec, int type);
+ void (*teardown_msi_irqs)(struct pci_dev *dev);
+#endif
+
void (*restart)(char *cmd);
void (*power_off)(void);
void (*halt)(void);
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