40bfed28cd
- every pci device which implements _PRT acpi method is considered to be a pci-to-pci bridge - acpi driver constructs a hierarchy of pci-to-pci bridges - when pci driver identifies a pci-to-pci bridge it tells acpi driver what is the primary and the secondary bus for this device - when pci requests IRQ routing information from acpi, it passes the bus number too to be able to identify the device accurately
8 lines
144 B
C
8 lines
144 B
C
#ifndef __ACPI_GLOBALS_H__
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#define __ACPI_GLOBALS_H__
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EXTERN int acpi_enabled;
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EXTERN struct machine machine;
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#endif /* __ACPI_GLOBALS_H__ */
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