write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/include/linux/async.h
..
..
@@ -1,19 +1,17 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
1
2
 /*
2
3
  * async.h: Asynchronous function calls for boot performance
3
4
  *
4
5
  * (C) Copyright 2009 Intel Corporation
5
6
  * Author: Arjan van de Ven <arjan@linux.intel.com>
6
- *
7
- * This program is free software; you can redistribute it and/or
8
- * modify it under the terms of the GNU General Public License
9
- * as published by the Free Software Foundation; version 2
10
- * of the License.
11
7
  */
12
8
 #ifndef __ASYNC_H__
13
9
 #define __ASYNC_H__
14
10
 
15
11
 #include <linux/types.h>
16
12
 #include <linux/list.h>
13
+#include <linux/numa.h>
14
+#include <linux/device.h>
17
15
 
18
16
 typedef u64 async_cookie_t;
19
17
 typedef void (*async_func_t) (void *data, async_cookie_t cookie);
..
..
@@ -37,9 +35,83 @@
37
35
 	struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
38
36
 				      .registered = 0 }
39
37
 
40
-extern async_cookie_t async_schedule(async_func_t func, void *data);
41
-extern async_cookie_t async_schedule_domain(async_func_t func, void *data,
42
-					    struct async_domain *domain);
38
+async_cookie_t async_schedule_node(async_func_t func, void *data,
39
+				   int node);
40
+async_cookie_t async_schedule_node_domain(async_func_t func, void *data,
41
+					  int node,
42
+					  struct async_domain *domain);
43
+
44
+/**
45
+ * async_schedule - schedule a function for asynchronous execution
46
+ * @func: function to execute asynchronously
47
+ * @data: data pointer to pass to the function
48
+ *
49
+ * Returns an async_cookie_t that may be used for checkpointing later.
50
+ * Note: This function may be called from atomic or non-atomic contexts.
51
+ */
52
+static inline async_cookie_t async_schedule(async_func_t func, void *data)
53
+{
54
+	return async_schedule_node(func, data, NUMA_NO_NODE);
55
+}
56
+
57
+/**
58
+ * async_schedule_domain - schedule a function for asynchronous execution within a certain domain
59
+ * @func: function to execute asynchronously
60
+ * @data: data pointer to pass to the function
61
+ * @domain: the domain
62
+ *
63
+ * Returns an async_cookie_t that may be used for checkpointing later.
64
+ * @domain may be used in the async_synchronize_*_domain() functions to
65
+ * wait within a certain synchronization domain rather than globally.
66
+ * Note: This function may be called from atomic or non-atomic contexts.
67
+ */
68
+static inline async_cookie_t
69
+async_schedule_domain(async_func_t func, void *data,
70
+		      struct async_domain *domain)
71
+{
72
+	return async_schedule_node_domain(func, data, NUMA_NO_NODE, domain);
73
+}
74
+
75
+/**
76
+ * async_schedule_dev - A device specific version of async_schedule
77
+ * @func: function to execute asynchronously
78
+ * @dev: device argument to be passed to function
79
+ *
80
+ * Returns an async_cookie_t that may be used for checkpointing later.
81
+ * @dev is used as both the argument for the function and to provide NUMA
82
+ * context for where to run the function. By doing this we can try to
83
+ * provide for the best possible outcome by operating on the device on the
84
+ * CPUs closest to the device.
85
+ * Note: This function may be called from atomic or non-atomic contexts.
86
+ */
87
+static inline async_cookie_t
88
+async_schedule_dev(async_func_t func, struct device *dev)
89
+{
90
+	return async_schedule_node(func, dev, dev_to_node(dev));
91
+}
92
+
93
+/**
94
+ * async_schedule_dev_domain - A device specific version of async_schedule_domain
95
+ * @func: function to execute asynchronously
96
+ * @dev: device argument to be passed to function
97
+ * @domain: the domain
98
+ *
99
+ * Returns an async_cookie_t that may be used for checkpointing later.
100
+ * @dev is used as both the argument for the function and to provide NUMA
101
+ * context for where to run the function. By doing this we can try to
102
+ * provide for the best possible outcome by operating on the device on the
103
+ * CPUs closest to the device.
104
+ * @domain may be used in the async_synchronize_*_domain() functions to
105
+ * wait within a certain synchronization domain rather than globally.
106
+ * Note: This function may be called from atomic or non-atomic contexts.
107
+ */
108
+static inline async_cookie_t
109
+async_schedule_dev_domain(async_func_t func, struct device *dev,
110
+			  struct async_domain *domain)
111
+{
112
+	return async_schedule_node_domain(func, dev, dev_to_node(dev), domain);
113
+}
114
+
43
115
 void async_unregister_domain(struct async_domain *domain);
44
116
 extern void async_synchronize_full(void);
45
117
 extern void async_synchronize_full_domain(struct async_domain *domain);