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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_EXECMEM_ALLOC_H
#define _LINUX_EXECMEM_ALLOC_H
#include <linux/types.h>
#include <linux/moduleloader.h>
/**
* enum execmem_type - types of executable memory ranges
*
* There are several subsystems that allocate executable memory.
* Architectures define different restrictions on placement,
* permissions, alignment and other parameters for memory that can be used
* by these subsystems.
* Types in this enum identify subsystems that allocate executable memory
* and let architectures define parameters for ranges suitable for
* allocations by each subsystem.
*
* @EXECMEM_DEFAULT: default parameters that would be used for types that
* are not explicitly defined.
* @EXECMEM_MODULE_TEXT: parameters for module text sections
* @EXECMEM_KPROBES: parameters for kprobes
* @EXECMEM_FTRACE: parameters for ftrace
* @EXECMEM_BPF: parameters for BPF
* @EXECMEM_TYPE_MAX:
*/
enum execmem_type {
EXECMEM_DEFAULT,
EXECMEM_MODULE_TEXT = EXECMEM_DEFAULT,
EXECMEM_KPROBES,
EXECMEM_FTRACE,
EXECMEM_BPF,
EXECMEM_TYPE_MAX,
};
/**
* execmem_alloc - allocate executable memory
* @type: type of the allocation
* @size: how many bytes of memory are required
*
* Allocates memory that will contain executable code, either generated or
* loaded from kernel modules.
*
* The memory will have protections defined by architecture for executable
* region of the @type.
*
* Return: a pointer to the allocated memory or %NULL
*/
void *execmem_alloc(enum execmem_type type, size_t size);
/**
* execmem_free - free executable memory
* @ptr: pointer to the memory that should be freed
*/
void execmem_free(void *ptr);
#endif /* _LINUX_EXECMEM_ALLOC_H */
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