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PCI: consolidate duplicated MSI enable functions 

Two recent patches added basically the same code to turn on
HT MSI mapping:

    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6bae1d96c6d7dde078994f6cb98235fd46f8736b
    http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dc625e72309e1c919ea3e7f51d0ffca96123787

There's no need to have both, so this patch removes one copy.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
hifive-unleashed-5.1
Bjorn Helgaas 2008-02-29 16:04:39 -07:00 committed by Greg Kroah-Hartman
parent d6505a5236
commit 415b6d0e89
1 changed files with 6 additions and 30 deletions
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36
drivers/pci/quirks.c
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@ -1725,32 +1725,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT2
quirk_msi_ht_cap);
/*
* Force enable MSI mapping capability on HT bridges
*/
static void __devinit quirk_msi_ht_cap_enable(struct pci_dev *dev)
{
int pos, ttl = 48;
pos = pci_find_ht_capability(dev, HT_CAPTYPE_MSI_MAPPING);
while (pos && ttl--) {
u8 flags;
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS, &flags) == 0) {
printk(KERN_INFO "PCI: Enabling HT MSI Mapping on %s\n",
pci_name(dev));
pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
flags | HT_MSI_FLAGS_ENABLE);
}
pos = pci_find_next_ht_capability(dev, pos,
HT_CAPTYPE_MSI_MAPPING);
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
quirk_msi_ht_cap_enable);
/* The nVidia CK804 chipset may have 2 HT MSI mappings.
* MSI are supported if the MSI capability set in any of these mappings.
*/
@ -1777,9 +1751,8 @@ static void __devinit quirk_nvidia_ck804_msi_ht_cap(struct pci_dev *dev)
DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_CK804_PCIE,
quirk_nvidia_ck804_msi_ht_cap);
/*
* Force enable MSI mapping capability on HT bridges */
static inline void ht_enable_msi_mapping(struct pci_dev *dev)
/* Force enable MSI mapping capability on HT bridges */
static void __devinit ht_enable_msi_mapping(struct pci_dev *dev)
{
int pos, ttl = 48;
@ -1798,6 +1771,9 @@ static inline void ht_enable_msi_mapping(struct pci_dev *dev)
HT_CAPTYPE_MSI_MAPPING);
}
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_SERVERWORKS,
PCI_DEVICE_ID_SERVERWORKS_HT1000_PXB,
ht_enable_msi_mapping);
static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
{
@ -1829,7 +1805,7 @@ static void __devinit nv_msi_ht_cap_quirk(struct pci_dev *dev)
if (pci_read_config_byte(dev, pos + HT_MSI_FLAGS,
&flags) == 0) {
dev_info(&dev->dev, "Quirk disabling HT MSI mapping");
dev_info(&dev->dev, "Disabling HT MSI mapping");
pci_write_config_byte(dev, pos + HT_MSI_FLAGS,
flags & ~HT_MSI_FLAGS_ENABLE);
}