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206 lines
6.9 KiB
C
206 lines
6.9 KiB
C
//----------------------------------------------------------------------------//
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// GNU GPL OS/K //
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// //
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// Desc: Kaleid kernel base include file //
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// //
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// //
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// Copyright © 2018-2019 The OS/K Team //
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// //
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// This file is part of OS/K. //
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// //
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// OS/K is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 3 of the License, or //
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// any later version. //
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// //
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// OS/K is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY//without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with OS/K. If not, see <https://www.gnu.org/licenses/>. //
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//----------------------------------------------------------------------------//
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#ifndef _LIBC_H
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#include <libc.h>
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#endif
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#ifndef _KERNEL_H
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#define _KERNEL_H
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//----------------------------------------------------------------------------//
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typedef volatile ulong Spinlock_t;
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typedef Spinlock_t Lock_t;
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//typedef struct Lock_t Lock_t;
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typedef struct Time_t Time_t;
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typedef struct Buffer_t Buffer_t;
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typedef struct ListHead_t ListHead_t;
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typedef struct ListNode_t ListNode_t;
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typedef struct Thread_t Thread_t;
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typedef struct Process_t Process_t;
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typedef struct BootInfo_t BootInfo_t;
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typedef struct CpuCore_t CpuCore_t;
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typedef struct CpuInfo_t CpuInfo_t;
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typedef struct ISRFrame_t ISRFrame_t;
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typedef enum ProcState_t ProcState_t;
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typedef struct IdtDescriptor_t IdtDescriptor_t;
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typedef struct IdtEntry_t IdtEntry_t;
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typedef struct IdtPtr_t IdtPtr_t;
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typedef struct ISRList_t ISRList_t;
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typedef struct ISRFrame_t ISRFrame_t;
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typedef struct MemoryMap_t MemoryMap_t;
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typedef struct MapEntry_t MapEntry_t;
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typedef struct GdtEntry_t GdtEntry_t;
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typedef struct GdtPtr_t GdtPtr_t;
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typedef struct TssEntry_t TssEntry_t;
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typedef struct TssDescriptor_t TssDescriptor_t;
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//----------------------------------------------------------------------------//
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//
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// Holds all CPU-local variables
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//
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struct CpuCore_t
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{
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// CPU number, index in CPU list
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int index;
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// CPU APIC id
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int apicId;
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CpuInfo_t *infos;
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// Number of ticks since boot time
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ulong ticks; // XXX I/O APIC
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// Current process & thread
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Process_t *process;
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Thread_t *thread;
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// Need re-schedule?
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bool needReSched;
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// Is preemption ON? ("PREEMPT_ON" in sched.h)
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ulong preemptCount;
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// List heads for the four priority classes
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ListHead_t *idlePrioProcs;
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ListHead_t *reglPrioProcs;
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ListHead_t *servPrioProcs;
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ListHead_t *timeCritProcs;
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};
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struct CpuInfo_t
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{
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// CPU Vendor String (always 12 characters)
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char vendorStr[12];
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// CPU Model code (enum in cpu.h)
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int modelCode;
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// CPU Features flag
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uint featureFlag;
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};
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struct ISRFrame_t {
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/* The register file */
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ulong regs[15];
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/* The error code and interrupt id */
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ulong intNo;
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ulong ErrorCode;
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/* These are pushed automatically by the CPU */
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ulong rip;
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ulong cs;
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ulong rflags;
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ulong rsp;
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ulong ss;
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} __attribute__((__packed__));
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//----------------------------------------------------------------------------//
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#ifndef NCPUS
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#define NCPUS 1
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#endif
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// Current CPU number
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#define _KeCurCPU 0
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extern int KeCPUCount;
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extern volatile CpuCore_t *KeCurCPU;
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extern CpuCore_t _KeCPUTable[NCPUS];
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//----------------------------------------------------------------------------//
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#define KeCurProc (KeCurCPU->process)
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#define KeCurThread (KeCurCPU->thread)
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//----------------------------------------------------------------------------//
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#include <asm.h>
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//----------------------------------------------------------------------------//
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#define DEC_PER_CPU(pref, name, field, type) \
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static inline type pref##Get##name() { return KeGetCurCPU()->field; } \
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static inline void _##pref##Set##name(type __val) \
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{ KeGetCurCPU()->field = __val; }
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//----------------------------------------------------------------------------//
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#ifdef NDEBUG
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#define DEBUG if(0)
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#else
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#define DEBUG if(1)
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#endif
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//----------------------------------------------------------------------------//
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error_t KernLog(const char *, ...);
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#ifndef _NO_DEBUG
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void DebugLog(const char *, ...);
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#else
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#define DebugLog(fmt, ...) ((void)0)
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#endif
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//----------------------------------------------------------------------------//
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extern volatile bool KeIsPanicking;
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noreturn void KeStartPanic(const char *, ...);
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//----------------------------------------------------------------------------//
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#define XBUG(c) do { \
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volatile ushort *_vga \
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=(volatile ushort*)0xB8000; \
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while(_vga<(volatile ushort*)(0xB8000+(80*25*2))) \
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*_vga++=(c|(0xf<<8)); \
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asm volatile("cli\nhlt"); \
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}while(0)
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#define BUG() XBUG('B')
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#define BUGON(x) if(x)BUG()
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//----------------------------------------------------------------------------//
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#define __GET_GETRIP() \
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__attribute__((__noinline__)) \
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static ulong __getrip() \
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{ return (size_t)__builtin_return_address(0); }
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#define __PRINT_RIP() \
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DebugLog("%s.RIP=%p\n",__func__,__getrip())
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//----------------------------------------------------------------------------//
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#endif
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