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#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
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