[mirror_ubuntu-focal-kernel.git] / arch / sh / include / asm / sram.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SRAM_H
#define __ASM_SRAM_H

#ifdef CONFIG_HAVE_SRAM_POOL

#include <linux/spinlock.h>
#include <linux/genalloc.h>

/* arch/sh/mm/sram.c */
extern struct gen_pool *sram_pool;

static inline unsigned long sram_alloc(size_t len)
{
	if (!sram_pool)
		return 0UL;

	return gen_pool_alloc(sram_pool, len);
}

static inline void sram_free(unsigned long addr, size_t len)
{
	return gen_pool_free(sram_pool, addr, len);
}

#else

static inline unsigned long sram_alloc(size_t len)
{
	return 0;
}

static inline void sram_free(unsigned long addr, size_t len)
{
}

#endif /* CONFIG_HAVE_SRAM_POOL */

#endif /* __ASM_SRAM_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
c993487e PM	2	#ifndef __ASM_SRAM_H
	3	#define __ASM_SRAM_H
	4
	5	#ifdef CONFIG_HAVE_SRAM_POOL
	6
	7	#include <linux/spinlock.h>
	8	#include <linux/genalloc.h>
	9
	10	/* arch/sh/mm/sram.c */
	11	extern struct gen_pool *sram_pool;
	12
	13	static inline unsigned long sram_alloc(size_t len)
	14	{
	15	if (!sram_pool)
	16	return 0UL;
	17
	18	return gen_pool_alloc(sram_pool, len);
	19	}
	20
	21	static inline void sram_free(unsigned long addr, size_t len)
	22	{
	23	return gen_pool_free(sram_pool, addr, len);
	24	}
	25
	26	#else
	27
	28	static inline unsigned long sram_alloc(size_t len)
	29	{
	30	return 0;
	31	}
	32
	33	static inline void sram_free(unsigned long addr, size_t len)
	34	{
	35	}
	36
	37	#endif /* CONFIG_HAVE_SRAM_POOL */
	38
	39	#endif /* __ASM_SRAM_H */