diff options
| author | Brian King <brking@linux.vnet.ibm.com> | 2013-05-03 15:30:59 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-05-06 03:25:37 +0400 |
| commit | e61133dda480062d221f09e4fc18f66763f8ecd0 (patch) | |
| tree | a18b4faf3b0126277173165565f3fa1be34f67bc /arch/powerpc/include/asm/pci-bridge.h | |
| parent | c2fd22df89365df9451d5b91da3b7bfd48122ecd (diff) | |
| download | linux-e61133dda480062d221f09e4fc18f66763f8ecd0.tar.xz | |
powerpc/pseries: Force 32 bit MSIs for devices that require it
The following patch implements a new PAPR change which allows
the OS to force the use of 32 bit MSIs, regardless of what
the PCI capabilities indicate. This is required for some
devices that advertise support for 64 bit MSIs but don't
actually support them.
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/pci-bridge.h')
| -rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index ffbc5fd549ac..0694f73db22d 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -163,6 +163,8 @@ struct pci_dn { int pci_ext_config_space; /* for pci devices */ + int force_32bit_msi:1; + struct pci_dev *pcidev; /* back-pointer to the pci device */ #ifdef CONFIG_EEH struct eeh_dev *edev; /* eeh device */ |