Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2)  * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * This source code is licensed under the BSD-style license found in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * LICENSE file in the root directory of https://github.com/facebook/zstd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * An additional grant of patent rights can be found in the PATENTS file in the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * same directory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * This program is free software; you can redistribute it and/or modify it under
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  * the terms of the GNU General Public License version 2 as published by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)  * Free Software Foundation. This program is dual-licensed; you may select
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)  * either version 2 of the GNU General Public License ("GPL") or BSD license
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)  * ("BSD").
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) /*-*************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *  Dependencies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) ***************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include "error_private.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include "zstd_internal.h" /* declaration of ZSTD_isError, ZSTD_getErrorName, ZSTD_getErrorCode, ZSTD_getErrorString, ZSTD_versionNumber */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) /*=**************************************************************
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) *  Custom allocator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) ****************************************************************/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define stack_push(stack, size)                                 \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 	({                                                      \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		void *const ptr = ZSTD_PTR_ALIGN((stack)->ptr); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		(stack)->ptr = (char *)ptr + (size);            \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		(stack)->ptr <= (stack)->end ? ptr : NULL;      \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	})
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) ZSTD_customMem ZSTD_initStack(void *workspace, size_t workspaceSize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	ZSTD_customMem stackMem = {ZSTD_stackAlloc, ZSTD_stackFree, workspace};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	ZSTD_stack *stack = (ZSTD_stack *)workspace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	/* Verify preconditions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	if (!workspace || workspaceSize < sizeof(ZSTD_stack) || workspace != ZSTD_PTR_ALIGN(workspace)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 		ZSTD_customMem error = {NULL, NULL, NULL};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 	/* Initialize the stack */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	stack->ptr = workspace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	stack->end = (char *)workspace + workspaceSize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	stack_push(stack, sizeof(ZSTD_stack));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	return stackMem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) void *ZSTD_stackAllocAll(void *opaque, size_t *size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 	ZSTD_stack *stack = (ZSTD_stack *)opaque;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	*size = (BYTE const *)stack->end - (BYTE *)ZSTD_PTR_ALIGN(stack->ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	return stack_push(stack, *size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) void *ZSTD_stackAlloc(void *opaque, size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 	ZSTD_stack *stack = (ZSTD_stack *)opaque;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	return stack_push(stack, size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) void ZSTD_stackFree(void *opaque, void *address)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) 	(void)opaque;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	(void)address;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) void *ZSTD_malloc(size_t size, ZSTD_customMem customMem) { return customMem.customAlloc(customMem.opaque, size); }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) void ZSTD_free(void *ptr, ZSTD_customMem customMem)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	if (ptr != NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 		customMem.customFree(customMem.opaque, ptr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) }