修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/include/linux/memory_group_manager.h
..
..
@@ -1,7 +1,7 @@
1
1
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2
2
 /*
3
3
  *
4
- * (C) COPYRIGHT 2019-2021 ARM Limited. All rights reserved.
4
+ * (C) COPYRIGHT 2019-2022 ARM Limited. All rights reserved.
5
5
  *
6
6
  * This program is free software and is provided to you under the terms of the
7
7
  * GNU General Public License version 2 as published by the Free Software
..
..
@@ -43,10 +43,12 @@
43
43
  * @mgm_free_page:            Callback to free physical memory in a group
44
44
  * @mgm_get_import_memory_id: Callback to get the group ID for imported memory
45
45
  * @mgm_update_gpu_pte:       Callback to modify a GPU page table entry
46
+ * @mgm_pte_to_original_pte:  Callback to get the original PTE entry as given
47
+ *                            to mgm_update_gpu_pte
46
48
  * @mgm_vmf_insert_pfn_prot:  Callback to map a physical memory page for the CPU
47
49
  */
48
50
 struct memory_group_manager_ops {
49
-	/**
51
+	/*
50
52
 	 * mgm_alloc_page - Allocate a physical memory page in a group
51
53
 	 *
52
54
 	 * @mgm_dev:  The memory group manager through which the request is
..
..
@@ -65,7 +67,7 @@
65
67
 		struct memory_group_manager_device *mgm_dev, int group_id,
66
68
 		gfp_t gfp_mask, unsigned int order);
67
69
 
68
-	/**
70
+	/*
69
71
 	 * mgm_free_page - Free a physical memory page in a group
70
72
 	 *
71
73
 	 * @mgm_dev:  The memory group manager through which the request
..
..
@@ -84,7 +86,7 @@
84
86
 		struct memory_group_manager_device *mgm_dev, int group_id,
85
87
 		struct page *page, unsigned int order);
86
88
 
87
-	/**
89
+	/*
88
90
 	 * mgm_get_import_memory_id - Get the physical memory group ID for the
89
91
 	 *                            imported memory
90
92
 	 *
..
..
@@ -103,7 +105,7 @@
103
105
 		struct memory_group_manager_device *mgm_dev,
104
106
 		struct memory_group_manager_import_data *import_data);
105
107
 
106
-	/**
108
+	/*
107
109
 	 * mgm_update_gpu_pte - Modify a GPU page table entry for a memory group
108
110
 	 *
109
111
 	 * @mgm_dev:   The memory group manager through which the request
..
..
@@ -120,14 +122,36 @@
120
122
 	 * This function allows the memory group manager to modify a GPU page
121
123
 	 * table entry before it is stored by the kbase module (controller
122
124
 	 * driver). It may set certain bits in the page table entry attributes
123
-	 * or in the physical address, based on the physical memory group ID.
125
+	 * or modify the physical address, based on the physical memory group ID
126
+	 * and/or additional data in struct memory_group_manager_device.
124
127
 	 *
125
128
 	 * Return: A modified GPU page table entry to be stored in a page table.
126
129
 	 */
127
130
 	u64 (*mgm_update_gpu_pte)(struct memory_group_manager_device *mgm_dev,
128
131
 			int group_id, int mmu_level, u64 pte);
129
132
 
130
-	/**
133
+	/*
134
+	 * mgm_pte_to_original_pte - Undo any modification done during mgm_update_gpu_pte()
135
+	 *
136
+	 * @mgm_dev:   The memory group manager through which the request
137
+	 *             is being made.
138
+	 * @group_id:  A physical memory group ID. The meaning of this is
139
+	 *             defined by the systems integrator. Its valid range is
140
+	 *             0 .. MEMORY_GROUP_MANAGER_NR_GROUPS-1.
141
+	 * @mmu_level: The level of the page table entry in @ate.
142
+	 * @pte:       The page table entry to restore the original representation for,
143
+	 *             in LPAE or AArch64 format (depending on the driver's configuration).
144
+	 *
145
+	 * Undo any modifications done during mgm_update_gpu_pte().
146
+	 * This function allows getting back the original PTE entry as given
147
+	 * to mgm_update_gpu_pte().
148
+	 *
149
+	 * Return: PTE entry as originally specified to mgm_update_gpu_pte()
150
+	 */
151
+	u64 (*mgm_pte_to_original_pte)(struct memory_group_manager_device *mgm_dev, int group_id,
152
+				       int mmu_level, u64 pte);
153
+
154
+	/*
131
155
 	 * mgm_vmf_insert_pfn_prot - Map a physical page in a group for the CPU
132
156
 	 *
133
157
 	 * @mgm_dev:   The memory group manager through which the request
..
..
@@ -158,8 +182,9 @@
158
182
  * struct memory_group_manager_device - Device structure for a memory group
159
183
  *                                      manager
160
184
  *
161
- * @ops  - Callbacks associated with this device
162
- * @data - Pointer to device private data
185
+ * @ops:   Callbacks associated with this device
186
+ * @data:  Pointer to device private data
187
+ * @owner: pointer to owning module
163
188
  *
164
189
  * In order for a systems integrator to provide custom behaviors for memory
165
190
  * operations performed by the kbase module (controller driver), they must
..
..
@@ -183,8 +208,9 @@
183
208
  * struct memory_group_manager_import_data - Structure describing the imported
184
209
  *                                           memory
185
210
  *
186
- * @type  - type of imported memory
187
- * @u     - Union describing the imported memory
211
+ * @type:      type of imported memory
212
+ * @u:         Union describing the imported memory
213
+ * @u.dma_buf: imported memory
188
214
  *
189
215
  */
190
216
 struct memory_group_manager_import_data {