mirror of
https://github.com/clearlinux/kvmtool.git
synced 2026-09-04 04:31:27 +00:00
Will Deacon
16242d2721
This patch factors out some of the openfirmware PCI binding definitions from the powerpc spapr PCI code and uses them to generate appropriate FDT properties for the PCI node on ARM. Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
#ifndef KVM__OF_PCI_H
|
|
#define KVM__OF_PCI_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
/*
|
|
* Definitions for implementing parts of the OpenFirmware PCI Bus Binding
|
|
* Specification (IEEE Std 1275-1994).
|
|
*/
|
|
|
|
struct of_pci_unit_address {
|
|
u32 hi, mid, lo;
|
|
} __attribute__((packed));
|
|
|
|
struct of_pci_irq_mask {
|
|
struct of_pci_unit_address pci_addr;
|
|
u32 pci_pin;
|
|
} __attribute__((packed));
|
|
|
|
struct of_pci_ranges_entry {
|
|
struct of_pci_unit_address pci_addr;
|
|
u64 cpu_addr;
|
|
u64 length;
|
|
} __attribute__((packed));
|
|
|
|
/* Macros to operate with address in OF binding to PCI */
|
|
#define __b_x(x, p, l) (((x) & ((1<<(l))-1)) << (p))
|
|
#define of_pci_b_n(x) __b_x((x), 31, 1) /* 0 if relocatable */
|
|
#define of_pci_b_p(x) __b_x((x), 30, 1) /* 1 if prefetchable */
|
|
#define of_pci_b_t(x) __b_x((x), 29, 1) /* 1 if the address is aliased */
|
|
#define of_pci_b_ss(x) __b_x((x), 24, 2) /* the space code */
|
|
#define of_pci_b_bbbbbbbb(x) __b_x((x), 16, 8) /* bus number */
|
|
#define of_pci_b_ddddd(x) __b_x((x), 11, 5) /* device number */
|
|
#define of_pci_b_fff(x) __b_x((x), 8, 3) /* function number */
|
|
#define of_pci_b_rrrrrrrr(x) __b_x((x), 0, 8) /* register number */
|
|
|
|
#define OF_PCI_SS_CONFIG 0
|
|
#define OF_PCI_SS_IO 1
|
|
#define OF_PCI_SS_M32 2
|
|
#define OF_PCI_SS_M64 3
|
|
|
|
#define OF_PCI_IRQ_MAP_MAX 256 /* 5 bit device + 3 bit pin */
|
|
|
|
#endif /* KVM__OF_PCI_H */
|