diff options
| author | Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com> | 2009-08-06 11:35:10 +0900 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-09-09 13:29:33 -0700 |
| commit | 75cb3426878d479f792c751a95f5c75f27b13a2f (patch) | |
| tree | 53b9283c642fba9a5dc0a90c045f57c08d87c67d /drivers/pci/msi.c | |
| parent | 5a05a9d819a328b3aae750237909aa2097adbeec (diff) | |
PCI MSI: MSI-X cleanup, msix_program_entries()
Cleanup based on the prototype from Matthew Milcox.
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 29 |
1 files changed, 19 insertions, 10 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index b0cc82123cc7..ce08d0bffe08 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -447,6 +447,24 @@ static void __iomem *msix_map_region(struct pci_dev *dev, unsigned pos, return ioremap_nocache(phys_addr, nr_entries * PCI_MSIX_ENTRY_SIZE); } +static void msix_program_entries(struct pci_dev *dev, + struct msix_entry *entries) +{ + struct msi_desc *entry; + int i = 0; + + list_for_each_entry(entry, &dev->msi_list, list) { + int offset = entries[i].entry * PCI_MSIX_ENTRY_SIZE + + PCI_MSIX_ENTRY_VECTOR_CTRL; + + entries[i].vector = entry->irq; + set_irq_msi(entry->irq, entry); + entry->masked = readl(entry->mask_base + offset); + msix_mask_irq(entry, 1); + i++; + } +} + /** * msix_capability_init - configure device's MSI-X capability * @dev: pointer to the pci_dev data structure of MSI-X device function @@ -511,16 +529,7 @@ static int msix_capability_init(struct pci_dev *dev, control |= PCI_MSIX_FLAGS_MASKALL | PCI_MSIX_FLAGS_ENABLE; pci_write_config_word(dev, pos + PCI_MSIX_FLAGS, control); - i = 0; - list_for_each_entry(entry, &dev->msi_list, list) { - entries[i].vector = entry->irq; - set_irq_msi(entry->irq, entry); - j = entries[i].entry; - entry->masked = readl(base + j * PCI_MSIX_ENTRY_SIZE + - PCI_MSIX_ENTRY_VECTOR_CTRL); - msix_mask_irq(entry, 1); - i++; - } + msix_program_entries(dev, entries); /* Set MSI-X enabled bits and unmask the function */ pci_intx_for_msi(dev, 0); |