kernel/acpi: Remove the redefinition of kthread_create().
[dragonfly.git] / sys / dev / acpica5 / Osd / OsdSchedule.c
CommitLineData
5ed44076
MD
1/*-
2 * Copyright (c) 2000 Michael Smith
3 * Copyright (c) 2000 BSDi
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
f9d8cd12 27 * $FreeBSD: src/sys/dev/acpica/Osd/OsdSchedule.c,v 1.28 2004/05/06 02:18:58 njl Exp $
5ed44076
MD
28 */
29
30/*
31 * 6.3 : Scheduling services
32 */
33
5ed44076
MD
34#include "opt_acpi.h"
35#include <sys/param.h>
36#include <sys/systm.h>
37#include <sys/bus.h>
38#include <sys/interrupt.h>
39#include <sys/kernel.h>
40#include <sys/kthread.h>
41#include <sys/malloc.h>
42#include <sys/proc.h>
87b510d5 43#include <sys/msgport.h>
5ed44076
MD
44#include <sys/taskqueue.h>
45#include <machine/clock.h>
46
87b510d5
MD
47#include <sys/thread2.h>
48#include <sys/msgport2.h>
cd8ab232 49#include <sys/mplock2.h>
87b510d5 50
f9d8cd12 51#include "acpi.h"
da42c799 52#include "accommon.h"
5ed44076
MD
53#include <dev/acpica5/acpivar.h>
54
55#define _COMPONENT ACPI_OS_SERVICES
56ACPI_MODULE_NAME("SCHEDULE")
57
58/*
59 * This is a little complicated due to the fact that we need to build and then
60 * free a 'struct task' for each task we enqueue.
61 */
62
63MALLOC_DEFINE(M_ACPITASK, "acpitask", "ACPI deferred task");
64
87b510d5
MD
65static void acpi_task_thread(void *arg);
66static void acpi_autofree_reply(lwkt_port_t port, lwkt_msg_t msg);
5ed44076
MD
67
68struct acpi_task {
87b510d5 69 struct lwkt_msg at_msg;
b18b56bd 70 ACPI_OSD_EXEC_CALLBACK at_function;
5ed44076 71 void *at_context;
e1eeedd0 72 ACPI_EXECUTE_TYPE at_type;
5ed44076
MD
73};
74
87b510d5
MD
75static struct thread *acpi_task_td;
76struct lwkt_port acpi_afree_rport;
5ed44076 77
5ed44076 78/*
87b510d5 79 * Initialize the ACPI helper thread.
5ed44076 80 */
87b510d5
MD
81int
82acpi_task_thread_init(void)
5ed44076 83{
fb0f29c4 84 lwkt_initport_replyonly(&acpi_afree_rport, acpi_autofree_reply);
197058e7 85 kthread_create(acpi_task_thread, NULL, &acpi_task_td, "acpi_task");
87b510d5 86 return (0);
5ed44076
MD
87}
88
87b510d5
MD
89/*
90 * The ACPI helper thread processes OSD execution callback messages.
91 */
5ed44076
MD
92static void
93acpi_task_thread(void *arg)
94{
b18b56bd 95 ACPI_OSD_EXEC_CALLBACK func;
87b510d5 96 struct acpi_task *at;
5ed44076 97
cd8ab232 98 get_mplock();
5ed44076 99 for (;;) {
3641b7ca 100 at = (void *)lwkt_waitport(&curthread->td_msgport, 0);
b18b56bd 101 func = (ACPI_OSD_EXEC_CALLBACK)at->at_function;
87b510d5
MD
102 func((void *)at->at_context);
103 lwkt_replymsg(&at->at_msg, 0);
5ed44076 104 }
cd8ab232 105 rel_mplock();
5ed44076 106}
5ed44076 107
87b510d5
MD
108/*
109 * Queue an ACPI message for execution by allocating a LWKT message structure
110 * and sending the message to the helper thread. The reply port is setup
111 * to automatically free the message.
112 */
5ed44076 113ACPI_STATUS
e1eeedd0
YT
114AcpiOsExecute(ACPI_EXECUTE_TYPE Type, ACPI_OSD_EXEC_CALLBACK Function,
115 void *Context)
5ed44076
MD
116{
117 struct acpi_task *at;
5ed44076 118
e1eeedd0
YT
119 switch (Type) {
120 case OSL_GLOBAL_LOCK_HANDLER:
121 case OSL_NOTIFY_HANDLER:
122 case OSL_GPE_HANDLER:
123 case OSL_DEBUGGER_THREAD:
124 case OSL_EC_POLL_HANDLER:
125 case OSL_EC_BURST_HANDLER:
5ed44076
MD
126 break;
127 default:
f9d8cd12 128 return_ACPI_STATUS (AE_BAD_PARAMETER);
5ed44076 129 }
5ed44076 130
87b510d5 131 /* Note: Interrupt Context */
efda3bd0 132 at = kmalloc(sizeof(*at), M_ACPITASK, M_INTWAIT | M_ZERO);
4599cf19 133 lwkt_initmsg(&at->at_msg, &acpi_afree_rport, 0);
87b510d5
MD
134 at->at_function = Function;
135 at->at_context = Context;
e1eeedd0 136 at->at_type = Type;
87b510d5 137 lwkt_sendmsg(&acpi_task_td->td_msgport, &at->at_msg);
f9d8cd12 138 return_ACPI_STATUS (AE_OK);
5ed44076
MD
139}
140
87b510d5
MD
141/*
142 * The message's reply port just frees the message.
143 */
5ed44076 144static void
87b510d5 145acpi_autofree_reply(lwkt_port_t port, lwkt_msg_t msg)
5ed44076 146{
efda3bd0 147 kfree(msg, M_ACPITASK);
5ed44076
MD
148}
149
b18b56bd
YT
150UINT64
151AcpiOsGetTimer (void)
152{
153 struct timeval time;
154
155 microtime(&time);
156
157 /* Seconds * 10^7 = 100ns(10^-7), Microseconds(10^-6) * 10^1 = 100ns */
158
159 return (((UINT64) time.tv_sec * 10000000) + ((UINT64) time.tv_usec * 10));
160}
87b510d5 161
5ed44076 162void
b18b56bd 163AcpiOsSleep(ACPI_INTEGER Milliseconds)
5ed44076
MD
164{
165 int timo;
166 static int dummy;
167
168 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
169
b18b56bd 170 timo = Milliseconds * hz / 1000;
5ed44076
MD
171
172 /*
87b510d5
MD
173 * If requested sleep time is less than our hz resolution, or if
174 * the system is in early boot before the system tick is operational,
175 * use DELAY instead for better granularity.
5ed44076 176 */
87b510d5 177 if (clocks_running == 0) {
b18b56bd 178 while (timo > 1000000) {
87b510d5 179 DELAY(1000000);
b18b56bd 180 timo -= 1000000;
87b510d5 181 }
b18b56bd
YT
182 if (timo)
183 DELAY(timo * 1000);
f6844ad9 184 } else if (timo > 0) {
5ed44076 185 tsleep(&dummy, 0, "acpislp", timo);
87b510d5 186 } else {
5ed44076 187 DELAY(Milliseconds * 1000);
87b510d5 188 }
5ed44076
MD
189 return_VOID;
190}
191
192void
193AcpiOsStall(UINT32 Microseconds)
194{
195 ACPI_FUNCTION_TRACE((char *)(uintptr_t)__func__);
196
197 DELAY(Microseconds);
198 return_VOID;
199}
200
e774ca6d 201ACPI_THREAD_ID
5ed44076
MD
202AcpiOsGetThreadId(void)
203{
204 struct proc *p;
f9d8cd12
MD
205
206 /* XXX do not add ACPI_FUNCTION_TRACE here, results in recursive call. */
5ed44076
MD
207
208 p = curproc;
5ed44076
MD
209 if (p == NULL)
210 p = &proc0;
5ed44076 211 KASSERT(p != NULL, ("%s: curproc is NULL!", __func__));
f9d8cd12
MD
212
213 /* Returning 0 is not allowed. */
214 return (p->p_pid + 1);
5ed44076 215}