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Release 4.16 include/linux/of_reserved_mem.h

Directory: include/linux
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __OF_RESERVED_MEM_H

#define __OF_RESERVED_MEM_H

#include <linux/device.h>

struct of_phandle_args;
struct reserved_mem_ops;


struct reserved_mem {
	
const char			*name;
	
unsigned long			fdt_node;
	
unsigned long			phandle;
	
const struct reserved_mem_ops	*ops;
	
phys_addr_t			base;
	
phys_addr_t			size;
	
void				*priv;
};


struct reserved_mem_ops {
	
int	(*device_init)(struct reserved_mem *rmem,
			       struct device *dev);
	
void	(*device_release)(struct reserved_mem *rmem,
				  struct device *dev);
};


typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);


#define RESERVEDMEM_OF_DECLARE(name, compat, init)			\
	_OF_DECLARE(reservedmem, name, compat, init, reservedmem_of_init_fn)

#ifdef CONFIG_OF_RESERVED_MEM

int of_reserved_mem_device_init_by_idx(struct device *dev,
				       struct device_node *np, int idx);
void of_reserved_mem_device_release(struct device *dev);

int early_init_dt_alloc_reserved_memory_arch(phys_addr_t size,
					     phys_addr_t align,
					     phys_addr_t start,
					     phys_addr_t end,
					     bool nomap,
					     phys_addr_t *res_base);

void fdt_init_reserved_mem(void);
void fdt_reserved_mem_save_node(unsigned long node, const char *uname,
			       phys_addr_t base, phys_addr_t size);
struct reserved_mem *of_reserved_mem_lookup(struct device_node *np);
#else

static inline int of_reserved_mem_device_init_by_idx(struct device *dev, struct device_node *np, int idx) { return -ENOSYS; }

Contributors

PersonTokensPropCommitsCommitProp
Marek Szyprowski24100.00%3100.00%
Total24100.00%3100.00%


static inline void of_reserved_mem_device_release(struct device *pdev) { }

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PersonTokensPropCommitsCommitProp
Marek Szyprowski11100.00%1100.00%
Total11100.00%1100.00%


static inline void fdt_init_reserved_mem(void) { }

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PersonTokensPropCommitsCommitProp
Marek Szyprowski8100.00%1100.00%
Total8100.00%1100.00%


static inline void fdt_reserved_mem_save_node(unsigned long node, const char *uname, phys_addr_t base, phys_addr_t size) { }

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PersonTokensPropCommitsCommitProp
Marek Szyprowski21100.00%1100.00%
Total21100.00%1100.00%


static inline struct reserved_mem *of_reserved_mem_lookup(struct device_node *np) { return NULL; }

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PersonTokensPropCommitsCommitProp
Björn Andersson17100.00%1100.00%
Total17100.00%1100.00%

#endif /** * of_reserved_mem_device_init() - assign reserved memory region to given device * @dev: Pointer to the device to configure * * This function assigns respective DMA-mapping operations based on the first * reserved memory region specified by 'memory-region' property in device tree * node of the given device. * * Returns error code or zero on success. */
static inline int of_reserved_mem_device_init(struct device *dev) { return of_reserved_mem_device_init_by_idx(dev, dev->of_node, 0); }

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PersonTokensPropCommitsCommitProp
Marek Szyprowski24100.00%1100.00%
Total24100.00%1100.00%

#endif /* __OF_RESERVED_MEM_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Marek Szyprowski25179.68%555.56%
Björn Andersson288.89%111.11%
Ben Dooks237.30%111.11%
Rob Herring123.81%111.11%
Greg Kroah-Hartman10.32%111.11%
Total315100.00%9100.00%
Directory: include/linux
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