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| author | Jike Song <albcamus@gmail.com> | 2008-09-09 23:42:03 +0800 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2008-10-20 10:53:50 -0700 |
| commit | 5993760f7fc75b77e4701f1e56dc84c0d6cf18d5 (patch) | |
| tree | 5eda8e0622ae17c84bb1c44763d8e3e07a204773 /drivers | |
| parent | 7f2feec140f1f1e4f701e013a2bf8284a9ec2a3c (diff) | |
| download | linux-5993760f7fc75b77e4701f1e56dc84c0d6cf18d5.tar.gz linux-5993760f7fc75b77e4701f1e56dc84c0d6cf18d5.tar.bz2 linux-5993760f7fc75b77e4701f1e56dc84c0d6cf18d5.zip | |
PCI: utilize calculated results when detecting MSI features
In msi_capability_init, we can make use of the calculated results
instead of calling is_mask_bit_support and is_64bit_address twice.
Signed-off-by: Jike Song <albcamus@gmail.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/msi.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 4a10b5624f72..d2812013fd22 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -378,23 +378,21 @@ static int msi_capability_init(struct pci_dev *dev) entry->msi_attrib.masked = 1; entry->msi_attrib.default_irq = dev->irq; /* Save IOAPIC IRQ */ entry->msi_attrib.pos = pos; - if (is_mask_bit_support(control)) { + if (entry->msi_attrib.maskbit) { entry->mask_base = (void __iomem *)(long)msi_mask_bits_reg(pos, - is_64bit_address(control)); + entry->msi_attrib.is_64); } entry->dev = dev; if (entry->msi_attrib.maskbit) { unsigned int maskbits, temp; /* All MSIs are unmasked by default, Mask them all */ pci_read_config_dword(dev, - msi_mask_bits_reg(pos, is_64bit_address(control)), + msi_mask_bits_reg(pos, entry->msi_attrib.is_64), &maskbits); temp = (1 << multi_msi_capable(control)); temp = ((temp - 1) & ~temp); maskbits |= temp; - pci_write_config_dword(dev, - msi_mask_bits_reg(pos, is_64bit_address(control)), - maskbits); + pci_write_config_dword(dev, entry->msi_attrib.is_64, maskbits); entry->msi_attrib.maskbits_mask = temp; } list_add_tail(&entry->list, &dev->msi_list); |