| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * |
| * (C) COPYRIGHT 2019-2021 ARM Limited. All rights reserved. |
| * |
| * This program is free software and is provided to you under the terms of the |
| * GNU General Public License version 2 as published by the Free Software |
| * Foundation, and any use by you of this program is subject to the terms |
| * of such GNU license. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, you can access it online at |
| * http://www.gnu.org/licenses/gpl-2.0.html. |
| * |
| */ |
| |
| #ifndef _KBASE_CSF_PROTECTED_MEMORY_H_ |
| #define _KBASE_CSF_PROTECTED_MEMORY_H_ |
| |
| #include "mali_kbase.h" |
| /** |
| * kbase_csf_protected_memory_init - Initilaise protected memory allocator. |
| * |
| * @kbdev: Device pointer. |
| * |
| * Return: 0 if success, or an error code on failure. |
| */ |
| int kbase_csf_protected_memory_init(struct kbase_device *const kbdev); |
| |
| /** |
| * kbase_csf_protected_memory_term - Terminate prtotected memory allocator. |
| * |
| * @kbdev: Device pointer. |
| */ |
| void kbase_csf_protected_memory_term(struct kbase_device *const kbdev); |
| |
| /** |
| * kbase_csf_protected_memory_alloc - Allocate protected memory pages. |
| * |
| * @kbdev: Device pointer. |
| * @phys: Array of physical addresses to be filled in by the protected |
| * memory allocator. |
| * @num_pages: Number of pages requested to be allocated. |
| * |
| * Return: Pointer to an array of protected memory allocations on success, |
| * or NULL on failure. |
| */ |
| struct protected_memory_allocation ** |
| kbase_csf_protected_memory_alloc( |
| struct kbase_device *const kbdev, |
| struct tagged_addr *phys, |
| size_t num_pages); |
| |
| /** |
| * kbase_csf_protected_memory_free - Free the allocated |
| * protected memory pages |
| * |
| * @kbdev: Device pointer. |
| * @pma: Array of pointer to protected memory allocations. |
| * @num_pages: Number of pages to be freed. |
| */ |
| void kbase_csf_protected_memory_free( |
| struct kbase_device *const kbdev, |
| struct protected_memory_allocation **pma, |
| size_t num_pages); |
| #endif |