Contributors: 30
Author Tokens Token Proportion Commits Commit Proportion
Benjamin Herrenschmidt 130 29.02% 11 18.03%
Anton Blanchard 73 16.29% 4 6.56%
Paul Mackerras 45 10.04% 5 8.20%
Bartlomiej Zolnierkiewicz 39 8.71% 1 1.64%
John Rose 23 5.13% 2 3.28%
Matthew Wilcox 21 4.69% 4 6.56%
Linas Vepstas 19 4.24% 3 4.92%
David Woodhouse 15 3.35% 3 4.92%
Stephen Rothwell 15 3.35% 2 3.28%
Andrew Morton 11 2.46% 4 6.56%
Linus Torvalds (pre-git) 8 1.79% 2 3.28%
Grant C. Likely 8 1.79% 1 1.64%
Kumar Gala 6 1.34% 1 1.64%
Russell King 4 0.89% 1 1.64%
Patrick Mochel 4 0.89% 1 1.64%
Björn Helgaas 3 0.67% 1 1.64%
Christoph Hellwig 3 0.67% 2 3.28%
Matt Porter 3 0.67% 1 1.64%
Nathan Fontenot 3 0.67% 1 1.64%
Bryant G. Ly 2 0.45% 1 1.64%
Michael Ellerman 2 0.45% 1 1.64%
Thomas Gleixner 2 0.45% 1 1.64%
Becky Bruce 2 0.45% 1 1.64%
Roland Dreier 1 0.22% 1 1.64%
Josh Boyer 1 0.22% 1 1.64%
Nick Child 1 0.22% 1 1.64%
Bart Van Assche 1 0.22% 1 1.64%
Daniel Axtens 1 0.22% 1 1.64%
FUJITA Tomonori 1 0.22% 1 1.64%
Rob Herring 1 0.22% 1 1.64%
Total 448 61


/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef __ASM_POWERPC_PCI_H
#define __ASM_POWERPC_PCI_H
#ifdef __KERNEL__

/*
 */

#include <linux/types.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/dma-map-ops.h>
#include <linux/scatterlist.h>

#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/pci-bridge.h>

/* Return values for pci_controller_ops.probe_mode function */
#define PCI_PROBE_NONE		-1	/* Don't look at this bus at all */
#define PCI_PROBE_NORMAL	0	/* Do normal PCI probing */
#define PCI_PROBE_DEVTREE	1	/* Instantiate from device tree */

#define PCIBIOS_MIN_IO		0x1000
#define PCIBIOS_MIN_MEM		0x10000000

/* Values for the `which' argument to sys_pciconfig_iobase syscall.  */
#define IOBASE_BRIDGE_NUMBER	0
#define IOBASE_MEMORY		1
#define IOBASE_IO		2
#define IOBASE_ISA_IO		3
#define IOBASE_ISA_MEM		4

/*
 * Set this to 1 if you want the kernel to re-assign all PCI
 * bus numbers (don't do that on ppc64 yet !)
 */
#define pcibios_assign_all_busses() \
	(pci_has_flag(PCI_REASSIGN_ALL_BUS))

static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
{
	if (ppc_md.pci_get_legacy_ide_irq)
		return ppc_md.pci_get_legacy_ide_irq(dev, channel);
	return channel ? 15 : 14;
}

#ifdef CONFIG_PCI
void __init set_pci_dma_ops(const struct dma_map_ops *dma_ops);
#else	/* CONFIG_PCI */
#define set_pci_dma_ops(d)
#endif

#ifdef CONFIG_PPC64

/*
 * We want to avoid touching the cacheline size or MWI bit.
 * pSeries firmware sets the cacheline size (which is not the cpu cacheline
 * size in all cases) and hardware treats MWI the same as memory write.
 */
#define PCI_DISABLE_MWI

#endif /* CONFIG_PPC64 */

extern int pci_domain_nr(struct pci_bus *bus);

/* Decide whether to display the domain number in /proc */
extern int pci_proc_domain(struct pci_bus *bus);

struct vm_area_struct;

/* Tell PCI code what kind of PCI resource mappings we support */
#define HAVE_PCI_MMAP			1
#define ARCH_GENERIC_PCI_MMAP_RESOURCE	1
#define arch_can_pci_mmap_io()		1
#define arch_can_pci_mmap_wc()		1

extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
			   size_t count);
extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
			   size_t count);
extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
				      struct vm_area_struct *vma,
				      enum pci_mmap_state mmap_state);
#define HAVE_PCI_LEGACY	1

extern void pcibios_claim_one_bus(struct pci_bus *b);

extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);

extern void pcibios_resource_survey(void);

extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
extern int remove_phb_dynamic(struct pci_controller *phb);

extern struct pci_dev *of_create_pci_dev(struct device_node *node,
					struct pci_bus *bus, int devfn);

extern unsigned int pci_parse_of_flags(u32 addr0, int bridge);

extern void of_scan_pci_bridge(struct pci_dev *dev);

extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);

extern pgprot_t	pci_phys_mem_access_prot(unsigned long pfn,
					 unsigned long size,
					 pgprot_t prot);

extern resource_size_t pcibios_io_space_offset(struct pci_controller *hose);
extern void pcibios_setup_bus_self(struct pci_bus *bus);
extern void pcibios_setup_phb_io_space(struct pci_controller *hose);
extern void pcibios_scan_phb(struct pci_controller *hose);

#endif	/* __KERNEL__ */

#endif /* __ASM_POWERPC_PCI_H */