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| author | Daniel Axtens <dja@axtens.net> | 2015-04-14 14:27:58 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2015-06-02 11:47:42 +1000 |
| commit | 00e25397032f590d0a4d0ee89e236a4d1f8c0580 (patch) | |
| tree | 226529fa65d448d70e107cf180a64a67541d5e81 | |
| parent | 1d14b8755f0a7d8110f0bdc5b74987f8cc96c18e (diff) | |
| download | linux-stable-00e25397032f590d0a4d0ee89e236a4d1f8c0580.tar.gz linux-stable-00e25397032f590d0a4d0ee89e236a4d1f8c0580.tar.bz2 linux-stable-00e25397032f590d0a4d0ee89e236a4d1f8c0580.zip | |
powerpc/fsl_msi: Move MSI-related ops to pci_controller_ops
Move the fsl_msi subsystem to use the pci_controller_ops structure
rather than ppc_md for MSI related PCI controller operations.
Previously, MSI ops were added to ppc_md at the subsys level. However,
in fsl_pci.c, PCI controllers are created at the at arch level. So,
unlike in e.g. PowerNV/pSeries/Cell, we can't simply populate a
platform-level controller ops structure and have it copied into the
controllers when they are created.
Instead, walk every phb, and attempt to populate it with the MSI ops.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/sysdev/fsl_msi.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/arch/powerpc/sysdev/fsl_msi.c b/arch/powerpc/sysdev/fsl_msi.c index f086c6f22dc9..5236e5427c38 100644 --- a/arch/powerpc/sysdev/fsl_msi.c +++ b/arch/powerpc/sysdev/fsl_msi.c @@ -405,6 +405,7 @@ static int fsl_of_msi_probe(struct platform_device *dev) const struct fsl_msi_feature *features; int len; u32 offset; + struct pci_controller *phb; match = of_match_device(fsl_of_msi_ids, &dev->dev); if (!match) @@ -541,14 +542,20 @@ static int fsl_of_msi_probe(struct platform_device *dev) list_add_tail(&msi->list, &msi_head); - /* The multiple setting ppc_md.setup_msi_irqs will not harm things */ - if (!ppc_md.setup_msi_irqs) { - ppc_md.setup_msi_irqs = fsl_setup_msi_irqs; - ppc_md.teardown_msi_irqs = fsl_teardown_msi_irqs; - } else if (ppc_md.setup_msi_irqs != fsl_setup_msi_irqs) { - dev_err(&dev->dev, "Different MSI driver already installed!\n"); - err = -ENODEV; - goto error_out; + /* + * Apply the MSI ops to all the controllers. + * It doesn't hurt to reassign the same ops, + * but bail out if we find another MSI driver. + */ + list_for_each_entry(phb, &hose_list, list_node) { + if (!phb->controller_ops.setup_msi_irqs) { + phb->controller_ops.setup_msi_irqs = fsl_setup_msi_irqs; + phb->controller_ops.teardown_msi_irqs = fsl_teardown_msi_irqs; + } else if (phb->controller_ops.setup_msi_irqs != fsl_setup_msi_irqs) { + dev_err(&dev->dev, "Different MSI driver already installed!\n"); + err = -ENODEV; + goto error_out; + } } return 0; error_out: |