105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/*
|
|
* Copyright 2010 Tilera Corporation. All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation, version 2.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
|
|
* NON INFRINGEMENT. See the GNU General Public License for
|
|
* more details.
|
|
*/
|
|
|
|
#ifndef _ASM_TILE_PCI_H
|
|
#define _ASM_TILE_PCI_H
|
|
|
|
#include <linux/pci.h>
|
|
|
|
/*
|
|
* Structure of a PCI controller (host bridge)
|
|
*/
|
|
struct pci_controller {
|
|
int index; /* PCI domain number */
|
|
struct pci_bus *root_bus;
|
|
|
|
int first_busno;
|
|
int last_busno;
|
|
|
|
int hv_cfg_fd[2]; /* config{0,1} fds for this PCIe controller */
|
|
int hv_mem_fd; /* fd to Hypervisor for MMIO operations */
|
|
|
|
struct pci_ops *ops;
|
|
|
|
int irq_base; /* Base IRQ from the Hypervisor */
|
|
int plx_gen1; /* flag for PLX Gen 1 configuration */
|
|
|
|
/* Address ranges that are routed to this controller/bridge. */
|
|
struct resource mem_resources[3];
|
|
};
|
|
|
|
/*
|
|
* The hypervisor maps the entirety of CPA-space as bus addresses, so
|
|
* bus addresses are physical addresses. The networking and block
|
|
* device layers use this boolean for bounce buffer decisions.
|
|
*/
|
|
#define PCI_DMA_BUS_IS_PHYS 1
|
|
|
|
int __devinit tile_pci_init(void);
|
|
int __devinit pcibios_init(void);
|
|
|
|
void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
|
|
static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
|
|
|
|
void __devinit pcibios_fixup_bus(struct pci_bus *bus);
|
|
|
|
#define TILE_NUM_PCIE 2
|
|
|
|
#define pci_domain_nr(bus) (((struct pci_controller *)(bus)->sysdata)->index)
|
|
|
|
/*
|
|
* This decides whether to display the domain number in /proc.
|
|
*/
|
|
static inline int pci_proc_domain(struct pci_bus *bus)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* pcibios_assign_all_busses() tells whether or not the bus numbers
|
|
* should be reassigned, in case the BIOS didn't do it correctly, or
|
|
* in case we don't have a BIOS and we want to let Linux do it.
|
|
*/
|
|
static inline int pcibios_assign_all_busses(void)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* No special bus mastering setup handling.
|
|
*/
|
|
static inline void pcibios_set_master(struct pci_dev *dev)
|
|
{
|
|
}
|
|
|
|
#define PCIBIOS_MIN_MEM 0
|
|
#define PCIBIOS_MIN_IO 0
|
|
|
|
/*
|
|
* This flag tells if the platform is TILEmpower that needs
|
|
* special configuration for the PLX switch chip.
|
|
*/
|
|
extern int tile_plx_gen1;
|
|
|
|
/* Use any cpu for PCI. */
|
|
#define cpumask_of_pcibus(bus) cpu_online_mask
|
|
|
|
/* implement the pci_ DMA API in terms of the generic device dma_ one */
|
|
#include <asm-generic/pci-dma-compat.h>
|
|
|
|
/* generic pci stuff */
|
|
#include <asm-generic/pci.h>
|
|
|
|
#endif /* _ASM_TILE_PCI_H */
|