Import DPAA driver snapshot

Imported from Freescale Linux repository git://git.freescale.com/ppc/upstream/linux.git commit 2774c204cd8bfc56a200ff4dcdfc9cdf5b6fc161. Linux compatibility layer is partly from FreeBSD.
2025-10-16 18:33:33 +08:00 · 2016-04-27 11:58:19 +02:00
parent b2b2e1a6a5
commit 28ee86a9b0
132 changed files with 41012 additions and 3 deletions
--- a/rtemsbsd/powerpc/include/linux/sched.h
+++ b/rtemsbsd/powerpc/include/linux/sched.h
@@ -0,0 +1,125 @@
+/*-
+ * Copyright (c) 2010 Isilon Systems, Inc.
+ * Copyright (c) 2010 iX Systems, Inc.
+ * Copyright (c) 2010 Panasas, Inc.
+ * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice unmodified, this list of conditions, and the following
+ *    disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+#ifndef	_LINUX_SCHED_H_
+#define	_LINUX_SCHED_H_
+
+#include <sys/param.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/systm.h>
+#include <sys/proc.h>
+#include <sys/sched.h>
+#include <sys/sleepqueue.h>
+
+#define	MAX_SCHEDULE_TIMEOUT	LONG_MAX
+
+#define	TASK_DORMANT		0
+#define	TASK_RUNNING		1
+#define	TASK_INTERRUPTIBLE	2
+#define	TASK_UNINTERRUPTIBLE	4
+#define	TASK_DEAD		64
+#define	TASK_WAKEKILL		128
+#define	TASK_WAKING		256
+
+#define	TASK_SHOULD_STOP	1
+#define	TASK_STOPPED		2
+
+/*
+ * A task_struct is only provided for those tasks created with kthread.
+ * Using these routines with threads not started via kthread will cause
+ * panics because no task_struct is allocated and td_retval[1] is
+ * overwritten by syscalls which kernel threads will not make use of.
+ */
+struct task_struct {
+	struct	thread *task_thread;
+	int	(*task_fn)(void *data);
+	void	*task_data;
+	int	task_ret;
+	int	state;
+	int	should_stop;
+	struct mtx lock;
+};
+
+#define	current			((struct task_struct *)curthread->td_retval[1])
+#define	task_struct_get(x)	(struct task_struct *)(x)->td_retval[1]
+#define	task_struct_set(x, y)	(x)->td_retval[1] = (register_t)(y)
+
+#define	set_current_state(x)						\
+	atomic_store_rel_int((volatile int *)&current->state, (x))
+#define	__set_current_state(x)	current->state = (x)
+
+
+#define	schedule()							\
+do {									\
+	void *c;							\
+									\
+	if (cold)							\
+		break;							\
+	c = curthread;							\
+	sleepq_lock(c);							\
+	if (current->state == TASK_INTERRUPTIBLE ||			\
+	    current->state == TASK_UNINTERRUPTIBLE) {			\
+		sleepq_add(c, NULL, "task", SLEEPQ_SLEEP, 0);		\
+		sleepq_wait(c, 0);					\
+	} else {							\
+		sleepq_release(c);					\
+		sched_relinquish(curthread);				\
+	}								\
+} while (0)
+
+#define	wake_up_process(x)						\
+do {									\
+	int wakeup_swapper;						\
+	void *c;							\
+									\
+	c = (x)->task_thread;						\
+	sleepq_lock(c);							\
+	(x)->state = TASK_RUNNING;					\
+	wakeup_swapper = sleepq_signal(c, SLEEPQ_SLEEP, 0, 0);		\
+	sleepq_release(c);						\
+	if (wakeup_swapper)						\
+		kick_proc0();						\
+} while (0)
+
+#define	cond_resched()	if (!cold)	sched_relinquish(curthread)
+
+static inline long
+schedule_timeout(signed long timeout)
+{
+	if (timeout < 0)
+		return 0;
+
+	pause("lstim", timeout);
+
+	return 0;
+}
+
+#endif	/* _LINUX_SCHED_H_ */