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Subject[git patch] improve INTx toggle for PCI MSI

"it boots" on ICH7 at least.

Please pull from 'intx' branch of
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6.git intx

to receive the following updates:

drivers/pci/msi.c | 12 ++++--------
1 files changed, 4 insertions(+), 8 deletions(-)

Jeff Garzik:
PCI MSI: always toggle legacy-INTx-enable bit upon MSI entry/exit

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 9fc9a34..c2828a3 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -255,10 +255,8 @@ static void enable_msi_mode(struct pci_d
pci_write_config_word(dev, msi_control_reg(pos), control);
dev->msix_enabled = 1;
}
- if (pci_find_capability(dev, PCI_CAP_ID_EXP)) {
- /* PCI Express Endpoint device detected */
- pci_intx(dev, 0); /* disable intx */
- }
+
+ pci_intx(dev, 0); /* disable intx */
}

void disable_msi_mode(struct pci_dev *dev, int pos, int type)
@@ -276,10 +274,8 @@ void disable_msi_mode(struct pci_dev *de
pci_write_config_word(dev, msi_control_reg(pos), control);
dev->msix_enabled = 0;
}
- if (pci_find_capability(dev, PCI_CAP_ID_EXP)) {
- /* PCI Express Endpoint device detected */
- pci_intx(dev, 1); /* enable intx */
- }
+
+ pci_intx(dev, 1); /* enable intx */
}

static int msi_lookup_irq(struct pci_dev *dev, int type)
-
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