diff options
Diffstat (limited to 'mali_kbase/mali_kbase_native_mgm.c')
| -rw-r--r-- | mali_kbase/mali_kbase_native_mgm.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/mali_kbase/mali_kbase_native_mgm.c b/mali_kbase/mali_kbase_native_mgm.c index 4554bee..10a7f50 100644 --- a/mali_kbase/mali_kbase_native_mgm.c +++ b/mali_kbase/mali_kbase_native_mgm.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note /* * - * (C) COPYRIGHT 2019-2021 ARM Limited. All rights reserved. + * (C) COPYRIGHT 2019-2022 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 @@ -140,6 +140,30 @@ kbase_native_mgm_update_gpu_pte(struct memory_group_manager_device *mgm_dev, return pte; } +/** + * kbase_native_mgm_pte_to_original_pte - Native method to undo changes done in + * kbase_native_mgm_update_gpu_pte() + * + * @mgm_dev: The memory group manager the request is being made through. + * @group_id: A physical memory group ID, which must be valid but is not used. + * Its valid range is 0 .. MEMORY_GROUP_MANAGER_NR_GROUPS-1. + * @mmu_level: The level of the MMU page table where the page is getting mapped. + * @pte: The prepared page table entry. + * + * This function simply returns the @pte without modification. + * + * Return: A GPU page table entry to be stored in a page table. + */ +static u64 kbase_native_mgm_pte_to_original_pte(struct memory_group_manager_device *mgm_dev, + int group_id, int mmu_level, u64 pte) +{ + CSTD_UNUSED(mgm_dev); + CSTD_UNUSED(group_id); + CSTD_UNUSED(mmu_level); + + return pte; +} + struct memory_group_manager_device kbase_native_mgm_dev = { .ops = { .mgm_alloc_page = kbase_native_mgm_alloc, @@ -147,6 +171,7 @@ struct memory_group_manager_device kbase_native_mgm_dev = { .mgm_get_import_memory_id = NULL, .mgm_vmf_insert_pfn_prot = kbase_native_mgm_vmf_insert_pfn_prot, .mgm_update_gpu_pte = kbase_native_mgm_update_gpu_pte, + .mgm_pte_to_original_pte = kbase_native_mgm_pte_to_original_pte, }, .data = NULL }; |