diff options
| author | Bjorn Helgaas <bhelgaas@google.com> | 2020-12-03 12:51:08 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2020-12-04 12:08:19 -0600 |
| commit | cbc40d5c33af289548d2481e68a38512102cdd3e (patch) | |
| tree | e6b17682ef0a303726deb150c372841c71214acc /drivers/pci/probe.c | |
| parent | 695cd09cc9b27ece3315331b5d12195c8b67946b (diff) | |
| download | lwn-cbc40d5c33af289548d2481e68a38512102cdd3e.tar.gz lwn-cbc40d5c33af289548d2481e68a38512102cdd3e.zip | |
PCI/MSI: Move MSI/MSI-X init to msi.c
Move pci_msi_setup_pci_dev(), which disables MSI and MSI-X interrupts, from
probe.c to msi.c so it's with all the other MSI code and more consistent
with other capability initialization. This means we must compile msi.c
always, even without CONFIG_PCI_MSI, so wrap the rest of msi.c in an #ifdef
and adjust the Makefile accordingly. No functional change intended.
Link: https://lore.kernel.org/r/20201203185110.1583077-2-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 21 |
1 files changed, 2 insertions, 19 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 4289030b0fff..50b480c016bf 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1716,22 +1716,6 @@ static u8 pci_hdr_type(struct pci_dev *dev) #define LEGACY_IO_RESOURCE (IORESOURCE_IO | IORESOURCE_PCI_FIXED) -static void pci_msi_setup_pci_dev(struct pci_dev *dev) -{ - /* - * Disable the MSI hardware to avoid screaming interrupts - * during boot. This is the power on reset default so - * usually this should be a noop. - */ - dev->msi_cap = pci_find_capability(dev, PCI_CAP_ID_MSI); - if (dev->msi_cap) - pci_msi_set_enable(dev, 0); - - dev->msix_cap = pci_find_capability(dev, PCI_CAP_ID_MSIX); - if (dev->msix_cap) - pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_ENABLE, 0); -} - /** * pci_intx_mask_broken - Test PCI_COMMAND_INTX_DISABLE writability * @dev: PCI device @@ -2397,9 +2381,8 @@ void pcie_report_downtraining(struct pci_dev *dev) static void pci_init_capabilities(struct pci_dev *dev) { pci_ea_init(dev); /* Enhanced Allocation */ - - /* Setup MSI caps & disable MSI/MSI-X interrupts */ - pci_msi_setup_pci_dev(dev); + pci_msi_init(dev); /* Disable MSI */ + pci_msix_init(dev); /* Disable MSI-X */ /* Buffers for saving PCIe and PCI-X capabilities */ pci_allocate_cap_save_buffers(dev); |