blob: e6fb33a770f9e31e588f8fd53bfb6db7490cc884 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
|
// IBM_PROLOG_BEGIN_TAG
// This is an automatically generated prolog.
//
// $Source: src/include/kernel/cpumgr.H $
//
// IBM CONFIDENTIAL
//
// COPYRIGHT International Business Machines Corp. 2010 - 2011
//
// p1
//
// Object Code Only (OCO) source materials
// Licensed Internal Code Source Materials
// IBM HostBoot Licensed Internal Code
//
// The source code for this program is not published or other-
// wise divested of its trade secrets, irrespective of what has
// been deposited with the U.S. Copyright Office.
//
// Origin: 30
//
// IBM_PROLOG_END
#ifndef __KERNEL_CPUMGR_H
#define __KERNEL_CPUMGR_H
#include <kernel/types.h>
#include <kernel/cpu.H>
class CpuManager
{
public:
enum { MAXCPUS = KERNEL_MAX_SUPPORTED_CPUS };
/** @fn getCurrentCPU
* Returns a pointer to the current CPU structure by using the
* task structure in SPRG3.
*/
static cpu_t* getCurrentCPU();
static cpu_t* getCpu(size_t i) { return cv_cpus[i]; }
static void init();
static void init_slave_smp(cpu_t*);
/** @fn requestShutdown
* Requests that all CPUs shutdown
*/
static void requestShutdown(uint64_t i_status);
/** @fn isShutdownRequested
* Returns if a shutdown of all CPUs was requested
*/
static bool isShutdownRequested() { return cv_shutdown_requested; }
/** @fn getShutdownStatus
* Returns the status code that needs to be posted during shutdown
*/
static uint32_t getShutdownStatus() { return cv_shutdown_status; }
protected:
CpuManager();
~CpuManager() {}
/** @fn startCPU
* Starts the requested CPU. Default of -1 implies current CPU.
*/
void startCPU(ssize_t i = -1);
void startSlaveCPU(cpu_t*);
private:
static cpu_t* cv_cpus[MAXCPUS]; // Need to be able to access this
// from start.S to get initial stacks
// of secondary cpus / threads.
// If a shutdown of all CPUs is requested
static bool cv_shutdown_requested;
// The status code that needs to be posted during shutdown
static uint64_t cv_shutdown_status;
};
#endif
|
