Contributors: 24
Author Tokens Token Proportion Commits Commit Proportion
Andrew Murray 176 23.69% 1 2.63%
Benjamin Herrenschmidt 137 18.44% 3 7.89%
Rob Herring 93 12.52% 4 10.53%
Grant C. Likely 69 9.29% 6 15.79%
Christian Krafft 52 7.00% 3 7.89%
Yang Yingliang 36 4.85% 1 2.63%
Anton Vorontsov 35 4.71% 1 2.63%
Matthias Brugger 27 3.63% 2 5.26%
Guenter Roeck 20 2.69% 1 2.63%
Santosh Shilimkar 20 2.69% 1 2.63%
Liviu Dudau 19 2.56% 2 5.26%
Marc Gonzalez 18 2.42% 1 2.63%
Jiaxun Yang 12 1.62% 1 2.63%
Paul Mackerras 10 1.35% 1 2.63%
Sebastian Andrzej Siewior 3 0.40% 1 2.63%
Stephen Rothwell 3 0.40% 1 2.63%
Linus Torvalds (pre-git) 3 0.40% 1 2.63%
Linus Torvalds 2 0.27% 1 2.63%
Michal Simek 2 0.27% 1 2.63%
Kim Phillips 2 0.27% 1 2.63%
Tejun Heo 1 0.13% 1 2.63%
Andy Fleming 1 0.13% 1 2.63%
Jeremy Kerr 1 0.13% 1 2.63%
Greg Kroah-Hartman 1 0.13% 1 2.63%
Total 743 38


/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __OF_ADDRESS_H
#define __OF_ADDRESS_H
#include <linux/ioport.h>
#include <linux/errno.h>
#include <linux/of.h>
#include <linux/io.h>

struct of_bus;

struct of_pci_range_parser {
	struct device_node *node;
	struct of_bus *bus;
	const __be32 *range;
	const __be32 *end;
	int na;
	int ns;
	int pna;
	bool dma;
};
#define of_range_parser of_pci_range_parser

struct of_pci_range {
	union {
		u64 pci_addr;
		u64 bus_addr;
	};
	u64 cpu_addr;
	u64 size;
	u32 flags;
};
#define of_range of_pci_range

#define for_each_of_pci_range(parser, range) \
	for (; of_pci_range_parser_one(parser, range);)
#define for_each_of_range for_each_of_pci_range

/* Translate a DMA address from device space to CPU space */
extern u64 of_translate_dma_address(struct device_node *dev,
				    const __be32 *in_addr);

#ifdef CONFIG_OF_ADDRESS
extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
extern int of_address_to_resource(struct device_node *dev, int index,
				  struct resource *r);
extern void __iomem *of_iomap(struct device_node *device, int index);
void __iomem *of_io_request_and_map(struct device_node *device,
				    int index, const char *name);

/* Extract an address from a device, returns the region size and
 * the address space flags too. The PCI version uses a BAR number
 * instead of an absolute index
 */
extern const __be32 *__of_get_address(struct device_node *dev, int index, int bar_no,
				      u64 *size, unsigned int *flags);

extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
			struct device_node *node);
extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
			struct device_node *node);
extern struct of_pci_range *of_pci_range_parser_one(
					struct of_pci_range_parser *parser,
					struct of_pci_range *range);
extern int of_pci_address_to_resource(struct device_node *dev, int bar,
				      struct resource *r);
extern int of_pci_range_to_resource(struct of_pci_range *range,
				    struct device_node *np,
				    struct resource *res);
extern bool of_dma_is_coherent(struct device_node *np);
#else /* CONFIG_OF_ADDRESS */
static inline void __iomem *of_io_request_and_map(struct device_node *device,
						  int index, const char *name)
{
	return IOMEM_ERR_PTR(-EINVAL);
}

static inline u64 of_translate_address(struct device_node *np,
				       const __be32 *addr)
{
	return OF_BAD_ADDR;
}

static inline const __be32 *__of_get_address(struct device_node *dev, int index, int bar_no,
					     u64 *size, unsigned int *flags)
{
	return NULL;
}

static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
			struct device_node *node)
{
	return -ENOSYS;
}

static inline int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
			struct device_node *node)
{
	return -ENOSYS;
}

static inline struct of_pci_range *of_pci_range_parser_one(
					struct of_pci_range_parser *parser,
					struct of_pci_range *range)
{
	return NULL;
}

static inline int of_pci_address_to_resource(struct device_node *dev, int bar,
				             struct resource *r)
{
	return -ENOSYS;
}

static inline int of_pci_range_to_resource(struct of_pci_range *range,
					   struct device_node *np,
					   struct resource *res)
{
	return -ENOSYS;
}

static inline bool of_dma_is_coherent(struct device_node *np)
{
	return false;
}
#endif /* CONFIG_OF_ADDRESS */

#ifdef CONFIG_OF
extern int of_address_to_resource(struct device_node *dev, int index,
				  struct resource *r);
void __iomem *of_iomap(struct device_node *node, int index);
#else
static inline int of_address_to_resource(struct device_node *dev, int index,
					 struct resource *r)
{
	return -EINVAL;
}

static inline void __iomem *of_iomap(struct device_node *device, int index)
{
	return NULL;
}
#endif
#define of_range_parser_init of_pci_range_parser_init

static inline const __be32 *of_get_address(struct device_node *dev, int index,
					   u64 *size, unsigned int *flags)
{
	return __of_get_address(dev, index, -1, size, flags);
}

static inline const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
					       u64 *size, unsigned int *flags)
{
	return __of_get_address(dev, -1, bar_no, size, flags);
}

static inline int of_address_count(struct device_node *np)
{
	struct resource res;
	int count = 0;

	while (of_address_to_resource(np, count, &res) == 0)
		count++;

	return count;
}

#endif /* __OF_ADDRESS_H */