2 Copyright © 2013, The AROS Development Team. All rights reserved.
8 #include <aros/debug.h>
10 #include <aros/kernel.h>
11 #include <aros/symbolsets.h>
12 #include <exec/memory.h>
13 #include <exec/tasks.h>
14 #include <exec/alerts.h>
15 #include <exec/execbase.h>
18 #include <proto/exec.h>
19 #include <proto/kernel.h>
24 #include "exec_intern.h"
25 #if defined(__AROSEXEC_SMP__)
29 /* Linked from kernel.resource,
30 * need to retrieve in a cleaner fashion .. */
33 extern void IdleTask(struct ExecBase
*);
35 int Exec_ARMCPUInit(struct ExecBase
*SysBase
)
37 struct Task
*BootTask
, *CPUIdleTask
;
38 int cpu
, cpunum
= KrnGetCPUCount();
41 D(bug("[Exec] %s()\n", __PRETTY_FUNCTION__
));
43 BootTask
= GET_THIS_TASK
;
45 D(bug("[Exec] %s: launched from %s @ 0x%p\n", __PRETTY_FUNCTION__
, BootTask
->tc_Node
.ln_Name
, BootTask
));
49 /* for our sanity we will tell exec about the correct stack for the boot task */
50 BootTask
->tc_SPLower
= stack
;
51 BootTask
->tc_SPUpper
= stack
+ AROS_STACKSIZE
;
54 #if defined(__AROSEXEC_SMP__)
55 for (cpu
= 0; cpu
< cpunum
; cpu
++)
57 taskName
= AllocVec(15, MEMF_CLEAR
);
58 sprintf( taskName
, "CPU #%02d Idle", cpu
);
60 taskName
= "System Idle";
62 CPUIdleTask
= NewCreateTask(TASKTAG_NAME
, taskName
,
63 #if defined(__AROSEXEC_SMP__)
64 TASKTAG_AFFINITY
, KrnGetCPUMask(cpu
),
67 TASKTAG_PC
, IdleTask
,
68 TASKTAG_ARG1
, SysBase
,
74 bug("[Exec] %s: %s Task created @ 0x%p\n", __PRETTY_FUNCTION__
, CPUIdleTask
->tc_Node
.ln_Name
, CPUIdleTask
);
75 #if defined(__AROSEXEC_SMP__)
76 bug("[Exec] %s: CPU Affinity : %08x\n", __PRETTY_FUNCTION__
, GetIntETask(CPUIdleTask
)->iet_CpuAffinity
);
80 #if defined(__AROSEXEC_SMP__)
87 #if defined(__AROSEXEC_SMP__)
88 struct Hook Exec_TaskSpinLockFailHook
;
90 AROS_UFH3(void, Exec_TaskSpinLockFailFunc
,
91 AROS_UFHA(struct Hook
*, h
, A0
),
92 AROS_UFHA(void *, unused
, A2
),
93 AROS_UFHA(APTR
, msg
, A1
))
97 struct Task
*thisTask
= GET_THIS_TASK
;
99 /* tell the schedular that the task is waiting on a spinlock */
100 thisTask
->tc_State
= TS_SPIN
;
105 void Exec_TaskSpinUnlock(spinlock_t
*thisLock
)
108 struct Task
*curTask
, *tmp
;
110 ForeachNodeSafe(&PrivExecBase(SysBase
)->TaskSpinning
, (struct Node
*)curTask
, tmp
)
112 if (curTask
-> == thisLock
)
114 Kernel_43_KrnSpinLock(&PrivExecBase(SysBase
)->TaskReadySpinLock
, NULL
,
115 SPINLOCK_MODE_WRITE
);
117 Remove(&curTask
->tc_Node
);
118 Enqueue(&SysBase
->TaskReady
, &task
->tc_Node
);
119 Kernel_44_KrnSpinUnLock(&PrivExecBase(SysBase
)->TaskReadySpinLock
, NULL
);
123 Kernel_44_KrnSpinUnLock(&PrivExecBase(SysBase
)->TaskSpinningLock
, NULL
);
127 int Exec_TaskSpinningInit(struct ExecBase
*SysBase
)
129 /* setup the task spinning hook */
130 Exec_TaskSpinLockFailHook
.h_Entry
= (HOOKFUNC
)Exec_TaskSpinLockFailFunc
;
133 ADD2INITLIB(Exec_TaskSpinningInit
, 125)
136 ADD2INITLIB(Exec_ARMCPUInit
, 0)