kernel_5.10 no rt

hc

2023-12-11 6778948f9de86c3cfaf36725a7c87dcff9ba247f

 kernel/include/linux/async.h
..
..
@@ -1,19 +1,17 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * async.h: Asynchronous function calls for boot performance
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  *
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  * (C) Copyright 2009 Intel Corporation
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  * Author: Arjan van de Ven <arjan@linux.intel.com>
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- *
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- * This program is free software; you can redistribute it and/or
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- * modify it under the terms of the GNU General Public License
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- * as published by the Free Software Foundation; version 2
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- * of the License.
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  */
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 #ifndef __ASYNC_H__
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 #define __ASYNC_H__
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 #include <linux/types.h>
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 #include <linux/list.h>
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+#include <linux/numa.h>
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+#include <linux/device.h>
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 typedef u64 async_cookie_t;
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 typedef void (*async_func_t) (void *data, async_cookie_t cookie);
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@@ -37,9 +35,83 @@
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 	struct async_domain _name = { .pending = LIST_HEAD_INIT(_name.pending), \
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 				      .registered = 0 }
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-extern async_cookie_t async_schedule(async_func_t func, void *data);
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-extern async_cookie_t async_schedule_domain(async_func_t func, void *data,
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-					    struct async_domain *domain);
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+async_cookie_t async_schedule_node(async_func_t func, void *data,
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+				   int node);
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+async_cookie_t async_schedule_node_domain(async_func_t func, void *data,
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+					  int node,
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+					  struct async_domain *domain);
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+
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+/**
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+ * async_schedule - schedule a function for asynchronous execution
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+ * @func: function to execute asynchronously
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+ * @data: data pointer to pass to the function
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+ *
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+ * Returns an async_cookie_t that may be used for checkpointing later.
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+ * Note: This function may be called from atomic or non-atomic contexts.
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+ */
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+static inline async_cookie_t async_schedule(async_func_t func, void *data)
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+{
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+	return async_schedule_node(func, data, NUMA_NO_NODE);
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+}
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+
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+/**
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+ * async_schedule_domain - schedule a function for asynchronous execution within a certain domain
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+ * @func: function to execute asynchronously
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+ * @data: data pointer to pass to the function
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+ * @domain: the domain
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+ *
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+ * Returns an async_cookie_t that may be used for checkpointing later.
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+ * @domain may be used in the async_synchronize_*_domain() functions to
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+ * wait within a certain synchronization domain rather than globally.
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+ * Note: This function may be called from atomic or non-atomic contexts.
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+ */
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+static inline async_cookie_t
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+async_schedule_domain(async_func_t func, void *data,
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+		      struct async_domain *domain)
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+{
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+	return async_schedule_node_domain(func, data, NUMA_NO_NODE, domain);
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+}
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+
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+/**
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+ * async_schedule_dev - A device specific version of async_schedule
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+ * @func: function to execute asynchronously
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+ * @dev: device argument to be passed to function
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+ *
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+ * Returns an async_cookie_t that may be used for checkpointing later.
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+ * @dev is used as both the argument for the function and to provide NUMA
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+ * context for where to run the function. By doing this we can try to
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+ * provide for the best possible outcome by operating on the device on the
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+ * CPUs closest to the device.
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+ * Note: This function may be called from atomic or non-atomic contexts.
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+ */
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+static inline async_cookie_t
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+async_schedule_dev(async_func_t func, struct device *dev)
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+{
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+	return async_schedule_node(func, dev, dev_to_node(dev));
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+}
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+
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+/**
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+ * async_schedule_dev_domain - A device specific version of async_schedule_domain
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+ * @func: function to execute asynchronously
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+ * @dev: device argument to be passed to function
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+ * @domain: the domain
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+ *
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+ * Returns an async_cookie_t that may be used for checkpointing later.
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+ * @dev is used as both the argument for the function and to provide NUMA
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+ * context for where to run the function. By doing this we can try to
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+ * provide for the best possible outcome by operating on the device on the
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+ * CPUs closest to the device.
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+ * @domain may be used in the async_synchronize_*_domain() functions to
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+ * wait within a certain synchronization domain rather than globally.
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+ * Note: This function may be called from atomic or non-atomic contexts.
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+ */
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+static inline async_cookie_t
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+async_schedule_dev_domain(async_func_t func, struct device *dev,
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+			  struct async_domain *domain)
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+{
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+	return async_schedule_node_domain(func, dev, dev_to_node(dev), domain);
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+}
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+
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 void async_unregister_domain(struct async_domain *domain);
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 extern void async_synchronize_full(void);
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 extern void async_synchronize_full_domain(struct async_domain *domain);