pci_generate_special_cycle(D3hpci)

pci_generate_special_cycle -- generate a PCI special cycle

Synopsis

   #include <sys/types.h>
   #include <sys/hpci.h>
   #include <sys/hpci_bios.h>
   #include <sys/ddi.h>
   
   int pci_generate_special_cycle(rm_key_t hpci, uchar_t bus, uint_t data);

Description

pci_generate_special_cycle( ) generates a PCI special cycler, described in the PCI specification as a command used for broadcasting to all PCI devices on a bus.

Arguments

hpci: resource manager key for this instance of the hot plug controller.
bus: bus on which to execute the call
data: value passed in the call.

Return values

This function returns values as per corresponding 2.1 PCI BIOS calls.

Usage

pci_generate_special_cycle( ) should be used only when necessary because it affects all devices on the bus.

Context and synchronization

Blockable context

Hardware applicability

All

Version applicability

hpci: 1

References

pci_bios_present(D3hpci)

``Hotplug devices'' in HDK Technical Reference
``PCI'' in HDK Technical Reference