Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
PCI/MSI: Delete pci_msi_create_irq_domain()
pci_msi_create_irq_domain() is now unused. Delete it.
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
authored by
Nam Cao
and committed by
Thomas Gleixner
dce74500
3a866087
-93
-90
drivers/pci/msi/irqdomain.c
-90
drivers/pci/msi/irqdomain.c
···
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__pci_write_msi_msg(desc, msg);
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}
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-
/**
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* pci_msi_domain_calc_hwirq - Generate a unique ID for an MSI source
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* @desc: Pointer to the MSI descriptor
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*
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* The ID number is only used within the irqdomain.
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*/
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static irq_hw_number_t pci_msi_domain_calc_hwirq(struct msi_desc *desc)
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{
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struct pci_dev *dev = msi_desc_to_pci_dev(desc);
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return (irq_hw_number_t)desc->msi_index |
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pci_dev_id(dev) << 11 |
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((irq_hw_number_t)(pci_domain_nr(dev->bus) & 0xFFFFFFFF)) << 27;
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}
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static void pci_msi_domain_set_desc(msi_alloc_info_t *arg,
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struct msi_desc *desc)
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{
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arg->desc = desc;
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arg->hwirq = pci_msi_domain_calc_hwirq(desc);
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}
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static struct msi_domain_ops pci_msi_domain_ops_default = {
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.set_desc = pci_msi_domain_set_desc,
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};
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static void pci_msi_domain_update_dom_ops(struct msi_domain_info *info)
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{
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struct msi_domain_ops *ops = info->ops;
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if (ops == NULL) {
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info->ops = &pci_msi_domain_ops_default;
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} else {
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if (ops->set_desc == NULL)
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ops->set_desc = pci_msi_domain_set_desc;
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}
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}
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static void pci_msi_domain_update_chip_ops(struct msi_domain_info *info)
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{
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struct irq_chip *chip = info->chip;
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BUG_ON(!chip);
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if (!chip->irq_write_msi_msg)
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chip->irq_write_msi_msg = pci_msi_domain_write_msg;
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if (!chip->irq_mask)
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chip->irq_mask = pci_msi_mask_irq;
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if (!chip->irq_unmask)
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chip->irq_unmask = pci_msi_unmask_irq;
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}
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/**
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* pci_msi_create_irq_domain - Create a MSI interrupt domain
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* @fwnode: Optional fwnode of the interrupt controller
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* @info: MSI domain info
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* @parent: Parent irq domain
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*
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* Updates the domain and chip ops and creates a MSI interrupt domain.
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*
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* Returns:
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* A domain pointer or NULL in case of failure.
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*/
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struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
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struct msi_domain_info *info,
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struct irq_domain *parent)
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{
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if (WARN_ON(info->flags & MSI_FLAG_LEVEL_CAPABLE))
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info->flags &= ~MSI_FLAG_LEVEL_CAPABLE;
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if (info->flags & MSI_FLAG_USE_DEF_DOM_OPS)
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pci_msi_domain_update_dom_ops(info);
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if (info->flags & MSI_FLAG_USE_DEF_CHIP_OPS)
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pci_msi_domain_update_chip_ops(info);
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/* Let the core code free MSI descriptors when freeing interrupts */
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info->flags |= MSI_FLAG_FREE_MSI_DESCS;
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info->flags |= MSI_FLAG_ACTIVATE_EARLY | MSI_FLAG_DEV_SYSFS;
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if (IS_ENABLED(CONFIG_GENERIC_IRQ_RESERVATION_MODE))
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info->flags |= MSI_FLAG_MUST_REACTIVATE;
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/* PCI-MSI is oneshot-safe */
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info->chip->flags |= IRQCHIP_ONESHOT_SAFE;
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/* Let the core update the bus token */
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info->bus_token = DOMAIN_BUS_PCI_MSI;
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return msi_create_irq_domain(fwnode, info, parent);
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}
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EXPORT_SYMBOL_GPL(pci_msi_create_irq_domain);
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/*
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* Per device MSI[-X] domain functionality
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*/
-3
include/linux/msi.h
-3
include/linux/msi.h
···
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void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
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void pci_msi_mask_irq(struct irq_data *data);
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void pci_msi_unmask_irq(struct irq_data *data);
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struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
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struct msi_domain_info *info,
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struct irq_domain *parent);
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u32 pci_msi_domain_get_msi_rid(struct irq_domain *domain, struct pci_dev *pdev);
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u32 pci_msi_map_rid_ctlr_node(struct pci_dev *pdev, struct device_node **node);
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struct irq_domain *pci_msi_get_device_domain(struct pci_dev *pdev);