// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Contains common pci routines for ALL ppc platform
* (based on pci_32.c and pci_64.c)
*
* Port for PPC64 David Engebretsen, IBM Corp.
* Contains common pci routines for ppc64 platform, pSeries and iSeries brands.
*
* Copyright (C) 2003 Anton Blanchard <anton@au.ibm.com>, IBM
* Rework, based on alpha PCI code.
*
* Common pmac/prep/chrp pci routines. -- Cort
*/
#include <linux/kernel.h>
#include <linux/pci.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/export.h>
#include <linux/of_address.h>
#include <linux/of_pci.h>
#include <linux/mm.h>
#include <linux/shmem_fs.h>
#include <linux/list.h>
#include <linux/syscalls.h>
#include <linux/irq.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/vgaarb.h>
#include <linux/numa.h>
#include <asm/processor.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/pci-bridge.h>
#include <asm/byteorder.h>
#include <asm/machdep.h>
#include <asm/ppc-pci.h>
#include <asm/eeh.h>
#include "../../../drivers/pci/pci.h"
/* hose_spinlock protects accesses to the the phb_bitmap. */
static DEFINE_SPINLOCK(hose_spinlock);
LIST_HEAD(hose_list);
/* For dynamic PHB numbering on get_phb_number(): max number of PHBs. */
#define MAX_PHBS 0x10000
/*
* For dynamic PHB numbering: used/free PHBs tracking bitmap.
* Accesses to this bitmap should be protected by hose_spinlock.
*/
static DECLARE_BITMAP(phb_bitmap, MAX_PHBS);
/* ISA Memory physical address */
resource_size_t isa_mem_base;
EXPORT_SYMBOL(isa_mem_base);
static const struct dma_map_ops *pci_dma_ops;
void set_pci_dma_ops(const struct dma_map_ops *dma_ops)
{
pci_dma_ops = dma_ops;
}
/*
* This function should run under locking protection, specifically
* hose_spinlock.
*/
static int get_phb_number(struct device_node *dn)
{
int ret, phb_id = -1;
u32 prop_32;
u64 prop;
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