diff options
author | Thierry Reding <thierry.reding@avionic-design.de> | 2013-08-09 22:27:08 +0200 |
---|---|---|
committer | Jason Cooper <jason@lakedaemon.net> | 2013-08-12 15:26:58 +0000 |
commit | 0cbdcfcf427b63b9670e56760ef5e67cd7081b35 (patch) | |
tree | 941122e2248ac4b8dd107bc1702c83cbc0961166 /include/linux/pci.h | |
parent | ebd97be635bff43239f391a49c78b98818c589fe (diff) | |
download | linux-stable-0cbdcfcf427b63b9670e56760ef5e67cd7081b35.tar.gz linux-stable-0cbdcfcf427b63b9670e56760ef5e67cd7081b35.tar.bz2 linux-stable-0cbdcfcf427b63b9670e56760ef5e67cd7081b35.zip |
PCI: Introduce new MSI chip infrastructure
The new struct msi_chip is used to associated an MSI controller with a
PCI bus. It is automatically handed down from the root to its children
during bus enumeration.
This patch provides default (weak) implementations for the architecture-
specific MSI functions (arch_setup_msi_irq(), arch_teardown_msi_irq()
and arch_msi_check_device()) which check if a PCI device's bus has an
attached MSI chip and forward the call appropriately.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Daniel Price <daniel.price@gmail.com>
Tested-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r-- | include/linux/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index 0fd1f1582fa1..4044e3c00609 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -433,6 +433,7 @@ struct pci_bus { struct resource busn_res; /* bus numbers routed to this bus */ struct pci_ops *ops; /* configuration access functions */ + struct msi_chip *msi; /* MSI controller */ void *sysdata; /* hook for sys-specific extension */ struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */ |