1
0
mirror of https://gitlab.os-k.eu/os-k-team/os-k.git synced 2023-08-25 14:03:10 +02:00
os-k/include/kernel/base.h
2019-04-24 21:09:47 +02:00

148 lines
5.0 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 Buffer_t Buffer_t;
typedef struct Thread_t Thread_t;
typedef struct Process_t Process_t;
typedef struct BootInfo_t BootInfo_t;
typedef struct ListHead_t ListHead_t;
typedef struct ListNode_t ListNode_t;
typedef struct Processor_t Processor_t;
typedef struct IRQList_t IRQList_t;
typedef enum ProcState_t ProcState_t;
//------------------------------------------//
//
// Holds all CPU-local variables
//
struct Processor_t
{
// CPU number, index in CPU list
int index;
// CPU APIC id
int apicId;
// CPU Vendor String (always 12 characters)
char vendorStr[12];
// CPU Model code (enum in cpu.h)
int modelCode;
// CPU Features flag
uint featureFlag;
// 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;
};
//------------------------------------------//
#ifndef NCPUS
#define NCPUS 1
#endif
// Current CPU number
#define _KeCurCPU 0
extern int KeCPUCount;
extern volatile Processor_t *KeCurCPU;
extern Processor_t _KeCPUTable[NCPUS];
//------------------------------------------//
#define DEC_PER_CPU(pref, name, field, type) \
static inline type pref##Get##name() { return KeGetCurCPU()->field; } \
static inline void _##pref##Set##name(type __val) \
{ KeGetCurCPU()->field = __val; }
#define BARRIER() \
do { \
asm volatile("": : :"memory"); \
__sync_synchronize(); \
} while(0)
//------------------------------------------//
error_t KernLog(const char *, ...);
#ifndef _NO_DEBUG
void DebugLog(const char *, ...);
#else
#define DebugLog(fmt, ...) ((void)0)
#endif
//------------------------------------------//
extern volatile bool KeIsPanicking;
noreturn void KeStartPanic(const char *, ...);
//------------------------------------------//
#define XBUG(c) do { \
volatile ushort *_vga \
=(volatile ushort*)0xB8000; \
while(_vga<(volatile ushort*)(0xB8000+(80*25*2)) ) \
*_vga++=(c|(0xf<<8)); \
asm volatile("cli\nhlt"); \
}while(0)
#define BUG() XBUG('B')
#define BUGON(x) if(x)BUG()
//------------------------------------------//
#endif