pci_msix_vec_count – return the number of device’s MSI-X table entries Synopsis int pci_msix_vec_count(struct pci_dev *dev); Arguments dev pointer to the pci_dev data structure of MSI-X device function This function returns the number of device’s MSI-X table entries and therefore the number of MSI-X vectors device is capable of sending. It returns a negative errno if…
pci_msi_vec_count – Return the number of MSI vectors a device can send Synopsis int pci_msi_vec_count(struct pci_dev *dev); Arguments dev device to report about Description This function returns the number of MSI vectors a device requested via Multiple Message Capable register. It returns a negative errno if the device is not capable sending MSI interrupts. Otherwise,…
pci_msi_unmask_irq – Generic irq chip callback to unmask PCI/MSI interrupts Synopsis void pci_msi_unmask_irq(struct irq_data *data); Arguments data pointer to irqdata associated to that interrupt Copyright
pci_msi_mask_irq – Generic irq chip callback to mask PCI/MSI interrupts Synopsis void pci_msi_mask_irq(struct irq_data *data); Arguments data pointer to irqdata associated to that interrupt Copyright
pci_msi_enabled – is MSI enabled? Synopsis int pci_msi_enabled(void); Arguments void no arguments Description Returns true if MSI has not been disabled by the command-line option pci=nomsi. Copyright
pci_msi_create_irq_domain – Create a MSI interrupt domain Synopsis struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode, struct msi_domain_info *info, struct irq_domain *parent); Arguments fwnode Optional fwnode of the interrupt controller info MSI domain info parent Parent irq domain Description Updates the domain and chip ops and creates a MSI interrupt domain. Return A domain pointer or NULL in…
pci_mmap_resource – map a PCI resource into user memory space Synopsis int pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr, struct vm_area_struct *vma, int write_combine); Arguments kobj kobject for mapping attr struct bin_attribute for the file being mapped vma struct vm_area_struct passed into the mmap write_combine 1 for write_combine mapping Description Use the regular PCI mapping routines…
pci_mmap_legacy_mem – map legacy PCI memory into user memory space Synopsis int pci_mmap_legacy_mem(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, struct vm_area_struct *vma); Arguments filp open sysfs file kobj kobject corresponding to device to be mapped attr struct bin_attribute for this file vma struct vm_area_struct passed to mmap Description Uses an arch specific callback,…
pci_mmap_legacy_io – map legacy PCI IO into user memory space Synopsis int pci_mmap_legacy_io(struct file *filp, struct kobject *kobj, struct bin_attribute *attr, struct vm_area_struct *vma); Arguments filp open sysfs file kobj kobject corresponding to device to be mapped attr struct bin_attribute for this file vma struct vm_area_struct passed to mmap Description Uses an arch specific callback,…
pci_match_id – See if a pci device matches a given pci_id table Synopsis const struct pci_device_id *pci_match_id(const struct pci_device_id *ids, struct pci_dev *dev); Arguments ids array of PCI device id structures to search in dev the PCI device structure to match against. Description Used by a driver to check whether a PCI device present in…
pci_map_rom – map a PCI ROM to kernel space Synopsis void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size); Arguments pdev pointer to pci device struct size pointer to receive size of pci window over ROM Return kernel virtual pointer to image of ROM Map a PCI ROM into kernel space. If ROM is boot video ROM,…
pci_lost_interrupt – reports a lost PCI interrupt Synopsis enum pci_lost_interrupt_reason pci_lost_interrupt(struct pci_dev * pdev); Arguments pdev device whose interrupt is lost Description The primary function of this routine is to report a lost interrupt in a standard way which users can recognise (instead of blaming the driver). Return a suggestion for fixing it (although the driver is…
pci_load_saved_state – Reload the provided save state into struct pci_dev. Synopsis int pci_load_saved_state(struct pci_dev *dev, struct pci_saved_state *state); Arguments dev PCI device that we’re dealing with state Saved state returned from pci_store_saved_state Copyright
pci_load_and_free_saved_state – Reload the save state pointed to by state, and free the memory allocated for it. Synopsis int pci_load_and_free_saved_state(struct pci_dev *dev, struct pci_saved_state **state); Arguments dev PCI device that we’re dealing with state Pointer to saved state returned from pci_store_saved_state Copyright
pci_irq_vector – return Linux IRQ number of a device vector Synopsis int pci_irq_vector(struct pci_dev *dev, unsigned int nr); Arguments dev PCI device to operate on nr device-relative interrupt vector index (0-based). Copyright
pci_irq_get_affinity – return the affinity of a particular msi vector Synopsis const struct cpumask *pci_irq_get_affinity(struct pci_dev *dev, int nr); Arguments dev PCI device to operate on nr device-relative interrupt vector index (0-based). Copyright
pci_iomap_wc_range – create a virtual WC mapping cookie for a PCI BAR Synopsis void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, unsigned long offset, unsigned long maxlen); Arguments dev PCI device that owns the BAR bar BAR number offset map memory at the given offset in BAR maxlen max length of the memory to map Description…
pci_iomap_wc – create a virtual WC mapping cookie for a PCI BAR Synopsis void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long maxlen); Arguments dev PCI device that owns the BAR bar BAR number maxlen length of the memory to map Description Using this function you will get a __iomem address to your device BAR….
pci_iomap_range – create a virtual mapping cookie for a PCI BAR Synopsis void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, unsigned long offset, unsigned long maxlen); Arguments dev PCI device that owns the BAR bar BAR number offset map memory at the given offset in BAR maxlen max length of the memory to map Description Using…
pci_iomap – create a virtual mapping cookie for a PCI BAR Synopsis void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen); Arguments dev PCI device that owns the BAR bar BAR number maxlen length of the memory to map Description Using this function you will get a __iomem address to your device BAR. You…