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Code Issues Releases Wiki Activity

PCI/MSI: Move MSI/MSI-X flags updaters to msi.c

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pci_msi_set_enable() and pci_msix_clear_and_set_ctrl() are only used from
msi.c, so move them from drivers/pci/pci.h to msi.c.  No functional change
intended.

Link: https://lore.kernel.org/r/20201203185110.1583077-3-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Bjorn Helgaas 2020-12-03 12:51:09 -06:00
parent cbc40d5c33
commit 830dfe88ea
2 changed files with 21 additions and 21 deletions
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21
drivers/pci/msi.c
View file

@ -412,6 +412,17 @@ static void pci_intx_for_msi(struct pci_dev *dev, int enable)
pci_intx(dev, enable);
}
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_restore_msi_state(struct pci_dev *dev)
{
u16 control;
@ -434,6 +445,16 @@ static void __pci_restore_msi_state(struct pci_dev *dev)
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 void __pci_restore_msix_state(struct pci_dev *dev)
{
struct msi_desc *entry;

21
drivers/pci/pci.h
View file

@ -187,27 +187,6 @@ void pci_no_msi(void);
static inline void pci_no_msi(void) { }
#endif
static inline 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 inline 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);
}
void pci_realloc_get_opt(char *);
static inline int pci_no_d1d2(struct pci_dev *dev)