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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-05-22 02:58:21 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-05-24 12:13:45 +0400 |
| commit | b72c1f651491e4cd33ddec79c504a49071a512f0 (patch) | |
| tree | bd17bad6c182c986bbadd5a30d1afe98804f07ea /arch/powerpc/platforms/powernv/pci.c | |
| parent | 59affcd3e460b97492bc1aa2b843bafe7c54f596 (diff) | |
| download | linux-b72c1f651491e4cd33ddec79c504a49071a512f0.tar.xz | |
powerpc: Make radeon 32-bit MSI quirk work on powernv
This moves the quirk itself to pci_64.c as to get built on all ppc64
platforms (the only ones with a pci_dn), factors the two implementations
of get_pdn() into a single pci_get_dn() and use the quirk to do 32-bit
MSIs on IODA based powernv platforms.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms/powernv/pci.c')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c index 098d3573315c..277343cc6a3d 100644 --- a/arch/powerpc/platforms/powernv/pci.c +++ b/arch/powerpc/platforms/powernv/pci.c @@ -47,6 +47,10 @@ static int pnv_msi_check_device(struct pci_dev* pdev, int nvec, int type) { struct pci_controller *hose = pci_bus_to_host(pdev->bus); struct pnv_phb *phb = hose->private_data; + struct pci_dn *pdn = pci_get_pdn(pdev); + + if (pdn && pdn->force_32bit_msi && !phb->msi32_support) + return -ENODEV; return (phb && phb->msi_bmp.bitmap) ? 0 : -ENODEV; } |