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| author | Michael Ellerman <michael@ellerman.id.au> | 2007-01-25 11:34:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-02-08 02:50:07 +0300 |
| commit | 8fed4b65236c44d090bd62f2d14938ae791e0260 (patch) | |
| tree | 53b0609ff8e53d9b1410f707f59cd14a555f8c04 /drivers/pci/msi.c | |
| parent | 0fcfdabbdbedb3bdc63f29209aeeac805df78a92 (diff) | |
| download | linux-8fed4b65236c44d090bd62f2d14938ae791e0260.tar.xz | |
MSI: Combine pci_(save|restore)_msi/msix_state
The PCI save/restore code doesn't need to care about MSI vs MSI-X, all
it really wants is to say "save/restore all MSI(-X) info for this device".
This is borne out in the code, we call the MSI and MSI-X save routines
side by side, and similarly with the restore routines.
So combine the MSI/MSI-X routines into pci_save_msi_state() and
pci_restore_msi_state(). It is up to those routines to decide what state
needs to be saved.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 6cfa6be9a6d5..067ae9917fd6 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -295,7 +295,7 @@ static int msi_lookup_irq(struct pci_dev *dev, int type) } #ifdef CONFIG_PM -int pci_save_msi_state(struct pci_dev *dev) +static int __pci_save_msi_state(struct pci_dev *dev) { int pos, i = 0; u16 control; @@ -333,7 +333,7 @@ int pci_save_msi_state(struct pci_dev *dev) return 0; } -void pci_restore_msi_state(struct pci_dev *dev) +static void __pci_restore_msi_state(struct pci_dev *dev) { int i = 0, pos; u16 control; @@ -361,7 +361,7 @@ void pci_restore_msi_state(struct pci_dev *dev) kfree(save_state); } -int pci_save_msix_state(struct pci_dev *dev) +static int __pci_save_msix_state(struct pci_dev *dev) { int pos; int temp; @@ -409,7 +409,20 @@ int pci_save_msix_state(struct pci_dev *dev) return 0; } -void pci_restore_msix_state(struct pci_dev *dev) +int pci_save_msi_state(struct pci_dev *dev) +{ + int rc; + + rc = __pci_save_msi_state(dev); + if (rc) + return rc; + + rc = __pci_save_msix_state(dev); + + return rc; +} + +static void __pci_restore_msix_state(struct pci_dev *dev) { u16 save; int pos; @@ -446,6 +459,12 @@ void pci_restore_msix_state(struct pci_dev *dev) pci_write_config_word(dev, msi_control_reg(pos), save); enable_msi_mode(dev, pos, PCI_CAP_ID_MSIX); } + +void pci_restore_msi_state(struct pci_dev *dev) +{ + __pci_restore_msi_state(dev); + __pci_restore_msix_state(dev); +} #endif /* CONFIG_PM */ /** |