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| author | Matthew Wilcox <willy@linux.intel.com> | 2009-03-17 15:54:10 +0300 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-03-20 20:48:14 +0300 |
| commit | 1c8d7b0a562da06d3ebe83f01b1ed553205d1ae4 (patch) | |
| tree | 79c84432f5aed5a08b3bef262a10d933daae6a9b /arch/powerpc/kernel/msi.c | |
| parent | f2440d9acbe866b917b16cc0f927366341ce9215 (diff) | |
| download | linux-1c8d7b0a562da06d3ebe83f01b1ed553205d1ae4.tar.xz | |
PCI MSI: Add support for multiple MSI
Add the new API pci_enable_msi_block() to allow drivers to
request multiple MSI and reimplement pci_enable_msi in terms of
pci_enable_msi_block. Ensure that the architecture back ends don't
have to know about multiple MSI.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'arch/powerpc/kernel/msi.c')
| -rw-r--r-- | arch/powerpc/kernel/msi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/msi.c b/arch/powerpc/kernel/msi.c index 3bb7d3dd28be..0c16e2a854e5 100644 --- a/arch/powerpc/kernel/msi.c +++ b/arch/powerpc/kernel/msi.c @@ -19,6 +19,10 @@ int arch_msi_check_device(struct pci_dev* dev, int nvec, int type) return -ENOSYS; } + /* PowerPC doesn't support multiple MSI yet */ + if (type == PCI_CAP_ID_MSI && nvec > 1) + return 1; + if (ppc_md.msi_check_device) { pr_debug("msi: Using platform check routine.\n"); return ppc_md.msi_check_device(dev, nvec, type); |