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authorThomas Gleixner <tglx@linutronix.de>2021-12-06 23:27:49 +0100
committerThomas Gleixner <tglx@linutronix.de>2021-12-09 11:52:22 +0100
commit54324c2f3d728f451d9053fcc7859b26fc9cecb4 (patch)
tree19d1e2a59c19c84b1a86d4d7438ef8a3eda3f4d5 /drivers/pci/msi/msi.c
parent288c81ce4be7c15544605594966faaeb8803b5da (diff)
PCI/MSI: Split out CONFIG_PCI_MSI independent part
These functions are required even when CONFIG_PCI_MSI is not set. Move them to their own file. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Juergen Gross <jgross@suse.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20211206210224.710137730@linutronix.de
Diffstat (limited to 'drivers/pci/msi/msi.c')
-rw-r--r--drivers/pci/msi/msi.c39
1 files changed, 0 insertions, 39 deletions
diff --git a/drivers/pci/msi/msi.c b/drivers/pci/msi/msi.c
index 00233b0b3e92..a32345d9628c 100644
--- a/drivers/pci/msi/msi.c
+++ b/drivers/pci/msi/msi.c
@@ -18,8 +18,6 @@
#include "../pci.h"
-#ifdef CONFIG_PCI_MSI
-
static int pci_msi_enable = 1;
int pci_msi_ignore_mask;
@@ -1493,40 +1491,3 @@ bool pci_dev_has_special_msi_domain(struct pci_dev *pdev)
}
#endif /* CONFIG_PCI_MSI_IRQ_DOMAIN */
-#endif /* CONFIG_PCI_MSI */
-
-void pci_msi_init(struct pci_dev *dev)
-{
- u16 ctrl;
-
- /*
- * 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)
- return;
-
- pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &ctrl);
- if (ctrl & PCI_MSI_FLAGS_ENABLE)
- pci_write_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS,
- ctrl & ~PCI_MSI_FLAGS_ENABLE);
-
- if (!(ctrl & PCI_MSI_FLAGS_64BIT))
- dev->no_64bit_msi = 1;
-}
-
-void pci_msix_init(struct pci_dev *dev)
-{
- u16 ctrl;
-
- dev->msix_cap = pci_find_capability(dev, PCI_CAP_ID_MSIX);
- if (!dev->msix_cap)
- return;
-
- pci_read_config_word(dev, dev->msix_cap + PCI_MSIX_FLAGS, &ctrl);
- if (ctrl & PCI_MSIX_FLAGS_ENABLE)
- pci_write_config_word(dev, dev->msix_cap + PCI_MSIX_FLAGS,
- ctrl & ~PCI_MSIX_FLAGS_ENABLE);
-}