linux/include/linux/firmware/qcom/qcom_tzmem.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2023-2024 Linaro Ltd.
 */

#ifndef __QCOM_TZMEM_H
#define __QCOM_TZMEM_H

#include <linux/cleanup.h>
#include <linux/gfp.h>
#include <linux/types.h>

struct device;
struct qcom_tzmem_pool;

/**
 * enum qcom_tzmem_policy - Policy for pool growth.
 */
enum qcom_tzmem_policy { … };

/**
 * struct qcom_tzmem_pool_config - TZ memory pool configuration.
 * @initial_size: Number of bytes to allocate for the pool during its creation.
 * @policy: Pool size growth policy.
 * @increment: Used with policies that allow pool growth.
 * @max_size: Size above which the pool will never grow.
 */
struct qcom_tzmem_pool_config { … };

struct qcom_tzmem_pool *
qcom_tzmem_pool_new(const struct qcom_tzmem_pool_config *config);
void qcom_tzmem_pool_free(struct qcom_tzmem_pool *pool);
struct qcom_tzmem_pool *
devm_qcom_tzmem_pool_new(struct device *dev,
			 const struct qcom_tzmem_pool_config *config);

void *qcom_tzmem_alloc(struct qcom_tzmem_pool *pool, size_t size, gfp_t gfp);
void qcom_tzmem_free(void *ptr);

DEFINE_FREE(…)

phys_addr_t qcom_tzmem_to_phys(void *ptr);

#endif /* __QCOM_TZMEM */