add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/drivers/gpu/arm/bifrost/mali_kbase_native_mgm.c
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@@ -1,7 +1,7 @@
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 // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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 /*
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  *
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- * (C) COPYRIGHT 2019-2021 ARM Limited. All rights reserved.
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+ * (C) COPYRIGHT 2019-2022 ARM Limited. All rights reserved.
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  *
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  * This program is free software and is provided to you under the terms of the
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  * GNU General Public License version 2 as published by the Free Software
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@@ -140,6 +140,30 @@
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 	return pte;
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 }
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+/**
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+ * kbase_native_mgm_pte_to_original_pte - Native method to undo changes done in
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+ *                                        kbase_native_mgm_update_gpu_pte()
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+ *
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+ * @mgm_dev:   The memory group manager the request is being made through.
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+ * @group_id:  A physical memory group ID, which must be valid but is not used.
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+ *             Its valid range is 0 .. MEMORY_GROUP_MANAGER_NR_GROUPS-1.
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+ * @mmu_level: The level of the MMU page table where the page is getting mapped.
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+ * @pte:       The prepared page table entry.
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+ *
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+ * This function simply returns the @pte without modification.
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+ *
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+ * Return: A GPU page table entry to be stored in a page table.
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+ */
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+static u64 kbase_native_mgm_pte_to_original_pte(struct memory_group_manager_device *mgm_dev,
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+						int group_id, int mmu_level, u64 pte)
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+{
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+	CSTD_UNUSED(mgm_dev);
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+	CSTD_UNUSED(group_id);
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+	CSTD_UNUSED(mmu_level);
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+
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+	return pte;
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+}
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+
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 struct memory_group_manager_device kbase_native_mgm_dev = {
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 	.ops = {
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 		.mgm_alloc_page = kbase_native_mgm_alloc,
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@@ -147,6 +171,7 @@
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 		.mgm_get_import_memory_id = NULL,
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 		.mgm_vmf_insert_pfn_prot = kbase_native_mgm_vmf_insert_pfn_prot,
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 		.mgm_update_gpu_pte = kbase_native_mgm_update_gpu_pte,
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+		.mgm_pte_to_original_pte = kbase_native_mgm_pte_to_original_pte,
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 	},
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 	.data = NULL
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 };