From: Reinette Chatre Date: Tue, 17 Oct 2023 17:56:38 +0000 (-0700) Subject: PCI/MSI: Provide stubs for IMS functions X-Git-Tag: v6.6.7~1592 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=27a4b416a08467845c8fb0049c334b517cd8ea7e;p=platform%2Fkernel%2Flinux-starfive.git PCI/MSI: Provide stubs for IMS functions [ Upstream commit 41efa431244f6498833ff8ee8dde28c4924c5479 ] The IMS related functions (pci_create_ims_domain(), pci_ims_alloc_irq(), and pci_ims_free_irq()) are not declared when CONFIG_PCI_MSI is disabled. Provide definitions of these functions for use when callers are compiled with CONFIG_PCI_MSI disabled. Fixes: 0194425af0c8 ("PCI/MSI: Provide IMS (Interrupt Message Store) support") Fixes: c9e5bea27383 ("PCI/MSI: Provide pci_ims_alloc/free_irq()") Signed-off-by: Reinette Chatre Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/r/14ff656899a3757453f8584c1109d7a9b98fa258.1697564731.git.reinette.chatre@intel.com Signed-off-by: Sasha Levin --- diff --git a/include/linux/pci.h b/include/linux/pci.h index 8c7c2c3..b564172 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1624,6 +1624,8 @@ struct msix_entry { u16 entry; /* Driver uses to specify entry, OS writes */ }; +struct msi_domain_template; + #ifdef CONFIG_PCI_MSI int pci_msi_vec_count(struct pci_dev *dev); void pci_disable_msi(struct pci_dev *dev); @@ -1656,6 +1658,11 @@ void pci_msix_free_irq(struct pci_dev *pdev, struct msi_map map); void pci_free_irq_vectors(struct pci_dev *dev); int pci_irq_vector(struct pci_dev *dev, unsigned int nr); const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, int vec); +bool pci_create_ims_domain(struct pci_dev *pdev, const struct msi_domain_template *template, + unsigned int hwsize, void *data); +struct msi_map pci_ims_alloc_irq(struct pci_dev *pdev, union msi_instance_cookie *icookie, + const struct irq_affinity_desc *affdesc); +void pci_ims_free_irq(struct pci_dev *pdev, struct msi_map map); #else static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; } @@ -1719,6 +1726,25 @@ static inline const struct cpumask *pci_irq_get_affinity(struct pci_dev *pdev, { return cpu_possible_mask; } + +static inline bool pci_create_ims_domain(struct pci_dev *pdev, + const struct msi_domain_template *template, + unsigned int hwsize, void *data) +{ return false; } + +static inline struct msi_map pci_ims_alloc_irq(struct pci_dev *pdev, + union msi_instance_cookie *icookie, + const struct irq_affinity_desc *affdesc) +{ + struct msi_map map = { .index = -ENOSYS, }; + + return map; +} + +static inline void pci_ims_free_irq(struct pci_dev *pdev, struct msi_map map) +{ +} + #endif /** @@ -2616,14 +2642,6 @@ static inline bool pci_is_thunderbolt_attached(struct pci_dev *pdev) void pci_uevent_ers(struct pci_dev *pdev, enum pci_ers_result err_type); #endif -struct msi_domain_template; - -bool pci_create_ims_domain(struct pci_dev *pdev, const struct msi_domain_template *template, - unsigned int hwsize, void *data); -struct msi_map pci_ims_alloc_irq(struct pci_dev *pdev, union msi_instance_cookie *icookie, - const struct irq_affinity_desc *affdesc); -void pci_ims_free_irq(struct pci_dev *pdev, struct msi_map map); - #include #define pci_printk(level, pdev, fmt, arg...) \