1 /* 2 * Copyright (c) 2023 Apple Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 29 #ifndef _VM_COMPRESSOR_ALGORITHMS_INTERNAL_H_ 30 #define _VM_COMPRESSOR_ALGORITHMS_INTERNAL_H_ 31 32 #ifdef XNU_KERNEL_PRIVATE 33 #include <vm/vm_compressor_algorithms_xnu.h> 34 35 int metacompressor(const uint8_t *in, uint8_t *cdst, int32_t outbufsz, 36 uint16_t *codec, void *cscratch, boolean_t *, uint32_t *pop_count_p); 37 bool metadecompressor(const uint8_t *source, uint8_t *dest, uint32_t csize, 38 uint16_t ccodec, void *compressor_dscratch, uint32_t *pop_count_p); 39 40 typedef enum { 41 CCWK = 0, // must be 0 or 1 42 CCLZ4 = 1, //must be 0 or 1 43 CINVALID = 0xFFFF 44 } vm_compressor_codec_t; 45 46 typedef enum { 47 CMODE_WK = 0, 48 CMODE_LZ4 = 1, 49 CMODE_HYB = 2, 50 VM_COMPRESSOR_DEFAULT_CODEC = 3, 51 CMODE_INVALID = 4 52 } vm_compressor_mode_t; 53 54 void vm_compressor_algorithm_init(void); 55 int vm_compressor_algorithm(void); 56 57 #endif /* XNU_KERNEL_PRIVATE */ 58 #endif /* _VM_COMPRESSOR_ALGORITHMS_INTERNAL_H_ */ 59