1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 /* 3 * 4 * (C) COPYRIGHT 2012-2013, 2015, 2020-2021 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 /* 23 * Cache Policy API. 24 */ 25 26 #ifndef _KBASE_CACHE_POLICY_H_ 27 #define _KBASE_CACHE_POLICY_H_ 28 29 #include "mali_kbase.h" 30 #include <uapi/gpu/arm/bifrost/mali_base_kernel.h> 31 32 /** 33 * kbase_cache_enabled - Choose the cache policy for a specific region 34 * @flags: flags describing attributes of the region 35 * @nr_pages: total number of pages (backed or not) for the region 36 * 37 * Tells whether the CPU and GPU caches should be enabled or not for a specific 38 * region. 39 * This function can be modified to customize the cache policy depending on the 40 * flags and size of the region. 41 * 42 * Return: a combination of %KBASE_REG_CPU_CACHED and %KBASE_REG_GPU_CACHED 43 * depending on the cache policy 44 */ 45 u32 kbase_cache_enabled(u32 flags, u32 nr_pages); 46 47 #endif /* _KBASE_CACHE_POLICY_H_ */ 48