arch/i386-pc/kernel/kernel_intern.h

   1 #ifndef KERNEL_INTERN_H_
   2 #define KERNEL_INTERN_H_
   3 /*
   4     Copyright © 1995-2017, The AROS Development Team. All rights reserved.
   5     $Id$
   6
   7     Desc: 32bit x86 kernel_intern.h
   8     Lang: english
   9 */
  10
  11 #include <inttypes.h>
  12
  13 #include <aros/kernel.h>
  14 #include <utility/tagitem.h>
  15 #include <asm/cpu.h>
  16 #include <hardware/vbe.h>
  17
  18 typedef struct int_gate_32bit apicidt_t;
  19
  20 #include "apic.h"
  21
  22 #define STACK_SIZE              8192
  23
  24 #define DEF_IRQRETFUNC          core_DefaultIRET
  25
  26 /*
  27  * Boot-time private data.
  28  * This structure is write-protected in user mode and survives warm restarts.
  29  */
  30 struct KernBootPrivate
  31 {
  32     IPTR                        _APICBase;              /* Bootstrap APIC base address                          */
  33     UWORD                       kbp_APIC_BSPID;         /* Bootstrap APIC logical ID                            */
  34     APTR                        BOOTTLS,
  35                                 BOOTGDT,
  36                                 BOOTIDT;
  37     void                        *TSS;
  38     struct CPUMMUConfig         MMU;
  39 };
  40
  41 extern struct KernBootPrivate *__KernBootPrivate;
  42
  43 #define IDT_SIZE                sizeof(apicidt_t) * 256
  44 #define GDT_SIZE                sizeof(long long) * 8
  45 #define TLS_SIZE                sizeof(struct tss)
  46 #define TLS_ALIGN               64
  47
  48 #define __save_flags(x)         __asm__ __volatile__("pushf ; pop %0":"=g" (x): /* no input */)
  49 #define __restore_flags(x)      __asm__ __volatile__("push %0 ; popf": /* no output */ :"g" (x):"memory", "cc")
  50
  51 #define krnLeaveSupervisorRing(_flags)                          \
  52     asm("movl %[user_ds],%%eax\n\t"                             \
  53         "mov %%eax,%%ds\n\t"                                    \
  54         "mov %%eax,%%es\n\t"                                    \
  55         "movl %%esp,%%ebx\n\t"                                  \
  56         "pushl %%eax\n\t"                                       \
  57         "pushl %%ebx\n\t"                                       \
  58         "pushl %[iflags]\n\t"                                   \
  59         "pushl %[cs]\n\t"                                       \
  60         "pushl $1f\n\t"                                         \
  61         "iret\n"                                                \
  62         "1:"                                                    \
  63         : : [user_ds] "r" (USER_DS), [cs] "i" (USER_CS),        \
  64             [iflags] "i" (_flags)                               \
  65         :"eax","ebx")
  66
  67 #define FLAGS_INTENABLED        0x3002
  68
  69 void vesahack_Init(char *cmdline, struct vbe_mode *vmode);
  70 void core_Unused_Int(void);
  71
  72 /** CPU Functions **/
  73 #if (0)
  74 void core_SetupGDT(struct KernBootPrivate *, apicid_t, APTR, APTR, APTR);
  75 void core_SetupMMU(struct KernBootPrivate *, IPTR memtop);
  76 #endif
  77
  78 void core_CPUSetup(apicid_t, APTR, IPTR);
  79
  80 void ictl_Initialize(struct KernelBase *KernelBase);
  81
  82
  83 /* HW IRQ Related Functions */
  84 struct ExceptionContext;
  85 extern const void *IntrDefaultGates[256];
  86
  87 void core_LeaveInterrupt(struct ExceptionContext *);
  88 void core_Supervisor(struct ExceptionContext *);
  89
  90 void PlatformPostInit(void);
  91
  92 #endif /* KERNEL_INTERN_H_ */