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os-k/kaleid/include/kernel/base.h

120 lines
4.1 KiB
C

//----------------------------------------------------------------------------//
// GNU GPL OS/K //
// //
// Desc: Kaleid kernel base include file //
// //
// //
// Copyright © 2018-2019 The OS/K Team //
// //
// This file is part of OS/K. //
// //
// OS/K is free software: you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation, either version 3 of the License, or //
// any later version. //
// //
// OS/K is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY//without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
//----------------------------------------------------------------------------//
#ifndef _KALBASE_H
#include <kalbase.h>
#endif
#ifdef __cplusplus
#error "Kaleid's kernel won't compile in C++"
#endif
#ifndef _KALKERN_BASE_H
#define _KALKERN_BASE_H
//------------------------------------------//
typedef struct Lock_t Lock_t;
typedef struct Thread_t Thread_t;
typedef struct Process_t Process_t;
typedef struct Terminal_t Terminal_t;
typedef struct ListHead_t ListHead_t;
typedef struct ListNode_t ListNode_t;
typedef struct Processor_t Processor_t;
typedef enum ProcState_t ProcState_t;
typedef enum TermColor_t TermColor_t;
typedef enum KernelState_t KernelState_t;
//------------------------------------------//
// Multiprocessor misc. //
//------------------------------------------//
#ifndef NCPUS
#define NCPUS 1
#endif
// Current CPU number
// Will return a CPU-local variable later
#define _GetCurCPU() 0
// Get Process_t structure of current CPU
#define GetCurCPU() (cpuTable[_GetCurCPU()])
//------------------------------------------//
//
// Holds all CPU-local variables
//
struct Processor_t
{
// CPU number, index in CPU list
int index;
// Panic string
char panicStr[1024];
// Number of ticks since boot time
ulong ticks;
// Current process & thread
Process_t *process;
Thread_t *thread;
// Need re-schedule?
bool needReSched;
// Is preemption ON? ("PREEMPT_ON" in sched.h)
ulong preemptCount;
// List heads for the four priority classes
ListHead_t *idlePrioProcs;
ListHead_t *reglPrioProcs;
ListHead_t *servPrioProcs;
ListHead_t *timeCritProcs;
};
//------------------------------------------//
extern int cpuCount;
extern Processor_t cpuTable[NCPUS];
//------------------------------------------//
#define DEC_PER_CPU(name, field, type) \
static inline type Get##name() { return GetCurCPU().field; } \
static inline void _Set##name(type __val) { GetCurCPU().field = __val; }
//------------------------------------------//
// Needed by basically everyone
#ifndef _KALEXTRAS_LOCKS_H
#include <extras/locks.h>
#endif
//------------------------------------------//
#endif