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| author | Michael S. Tsirkin <mst@redhat.com> | 2015-05-07 09:52:21 -0500 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-05-07 09:52:21 -0500 |
| commit | 6a25f5e35ab742380742ebf2033f6d53518219db (patch) | |
| tree | 1dd947c5281467ad75450d7261c1d4fd2ec0f4b9 /drivers/pci/msi.c | |
| parent | 61b64abd399fa4b15ac649ad93b453d2a8569314 (diff) | |
| download | linux-6a25f5e35ab742380742ebf2033f6d53518219db.tar.gz linux-6a25f5e35ab742380742ebf2033f6d53518219db.tar.bz2 linux-6a25f5e35ab742380742ebf2033f6d53518219db.zip | |
PCI/MSI: Export pci_msi_set_enable(), pci_msix_clear_and_set_ctrl()
Move pci_msi_set_enable() and pci_msix_clear_and_set_ctrl() to
drivers/pci/pci.h so they're available even when MSI isn't configured
into the kernel.
No functional change.
[bhelgaas: changelog, split into separate patch]
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index 6cd366058ec4..9942f6827a4a 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -185,27 +185,6 @@ void __weak arch_restore_msi_irqs(struct pci_dev *dev) return default_restore_msi_irqs(dev); } -static void pci_msi_set_enable(struct pci_dev *dev, int enable) -{ - u16 control; - - pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &control); - control &= ~PCI_MSI_FLAGS_ENABLE; - if (enable) - control |= PCI_MSI_FLAGS_ENABLE; - pci_write_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, control); -} - -static void pci_msix_clear_and_set_ctrl(struct pci_dev *dev, u16 clear, u16 set) -{ - u16 ctrl; - - pci_read_config_word(dev, dev->msix_cap + PCI_MSIX_FLAGS, &ctrl); - ctrl &= ~clear; - ctrl |= set; - pci_write_config_word(dev, dev->msix_cap + PCI_MSIX_FLAGS, ctrl); -} - static inline __attribute_const__ u32 msi_mask(unsigned x) { /* Don't shift by >= width of type */ |