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PCI_BUS_ALLOC_RESOUR(9) Hardware Interfaces PCI_BUS_ALLOC_RESOUR(9)

NAME

pci_bus_alloc_resource - allocate a resource from a parent bus

SYNOPSIS

int pci_bus_alloc_resource(struct pci_bus * bus, struct resource * res, resource_size_t size, resource_size_t align, resource_size_t min, unsigned long type_mask, resource_size_t (*alignf) (void *, const struct resource *, resource_size_t, resource_size_t), void * alignf_data);

ARGUMENTS

struct pci_bus * bus

PCI bus

struct resource * res

resource to allocate

resource_size_t size

size of resource to allocate

resource_size_t align

alignment of resource to allocate

resource_size_t min

minimum /proc/iomem address to allocate

unsigned long type_mask

IORESOURCE_* type flags

resource_size_t (*)(void *, const struct resource *, resource_size_t, resource_size_t) alignf

resource alignment function

void * alignf_data

data argument for resource alignment function

DESCRIPTION

Given the PCI bus a device resides on, the size, minimum address, alignment and type, try to find an acceptable resource allocation for a specific device resource.

COPYRIGHT

June 2017 Kernel Hackers Manual 4.11