1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * 4 * (C) COPYRIGHT 2023 ARM Limited. All rights reserved. 5 * 6 * This program is free software and is provided to you under the terms of the 7 * GNU General Public License version 2 as published by the Free Software 8 * Foundation, and any use by you of this program is subject to the terms 9 * of such GNU license. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, you can access it online at 18 * http://www.gnu.org/licenses/gpl-2.0.html. 19 * 20 */ 21 22 #ifndef _KBASE_REFCOUNT_DEFS_H_ 23 #define _KBASE_REFCOUNT_DEFS_H_ 24 25 /* 26 * The Refcount API is available from 4.11 onwards 27 * This file hides the compatibility issues with this for the rest the driver 28 */ 29 30 #include <linux/version.h> 31 #include <linux/types.h> 32 33 #if (KERNEL_VERSION(4, 11, 0) > LINUX_VERSION_CODE) 34 35 #define kbase_refcount_t atomic_t 36 #define kbase_refcount_read(x) atomic_read(x) 37 #define kbase_refcount_set(x, v) atomic_set(x, v) 38 #define kbase_refcount_dec_and_test(x) atomic_dec_and_test(x) 39 #define kbase_refcount_dec(x) atomic_dec(x) 40 #define kbase_refcount_inc_not_zero(x) atomic_inc_not_zero(x) 41 #define kbase_refcount_inc(x) atomic_inc(x) 42 43 #else 44 45 #include <linux/refcount.h> 46 47 #define kbase_refcount_t refcount_t 48 #define kbase_refcount_read(x) refcount_read(x) 49 #define kbase_refcount_set(x, v) refcount_set(x, v) 50 #define kbase_refcount_dec_and_test(x) refcount_dec_and_test(x) 51 #define kbase_refcount_dec(x) refcount_dec(x) 52 #define kbase_refcount_inc_not_zero(x) refcount_inc_not_zero(x) 53 #define kbase_refcount_inc(x) refcount_inc(x) 54 55 #endif /* (KERNEL_VERSION(4, 11, 0) > LINUX_VERSION_CODE) */ 56 57 #endif /* _KBASE_REFCOUNT_DEFS_H_ */ 58