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 <asm/cpu.h>
  12 #include <hardware/vbe.h>
  13
  14 #include <inttypes.h>
  15
  16 typedef struct int_gate_32bit apicidt_t;
  17
  18 #include "apic.h"
  19
  20 #define STACK_SIZE 8192
  21 #define PAGE_SIZE       0x1000
  22 #define PAGE_MASK       0x0FFF
  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 /* Platform-specific part of KernelBase */
  44 struct PlatformData
  45 {
  46     struct List         kb_SysCallHandlers;
  47     APTR             kb_APIC_TrampolineBase;
  48     struct ACPIData *kb_ACPI;
  49     struct APICData *kb_APIC;
  50     struct IOAPICData   *kb_IOAPIC;
  51 };
  52
  53 #define IDT_SIZE                sizeof(apicidt_t) * 256
  54 #define GDT_SIZE                sizeof(long long) * 8
  55 #define TLS_SIZE                sizeof(struct tss)
  56 #define TLS_ALIGN               64
  57
  58 #define __save_flags(x)         __asm__ __volatile__("pushf ; pop %0":"=g" (x): /* no input */)
  59 #define __restore_flags(x)      __asm__ __volatile__("push %0 ; popf": /* no output */ :"g" (x):"memory", "cc")
  60
  61 #define krnLeaveSupervisorRing(_flags)                          \
  62     asm("movl %[user_ds],%%eax\n\t"                             \
  63         "mov %%eax,%%ds\n\t"                                    \
  64         "mov %%eax,%%es\n\t"                                    \
  65         "movl %%esp,%%ebx\n\t"                                  \
  66         "pushl %%eax\n\t"                                       \
  67         "pushl %%ebx\n\t"                                       \
  68         "pushl %[iflags]\n\t"                                   \
  69         "pushl %[cs]\n\t"                                       \
  70         "pushl $1f\n\t"                                         \
  71         "iret\n"                                                \
  72         "1:"                                                    \
  73         : : [user_ds] "r" (USER_DS), [cs] "i" (USER_CS),        \
  74             [iflags] "i" (_flags)                               \
  75         :"eax","ebx")
  76
  77 #define FLAGS_INTENABLED        0x3002
  78
  79 void vesahack_Init(char *cmdline, struct vbe_mode *vmode);
  80 void core_Unused_Int(void);
  81
  82 /** CPU Functions **/
  83 #if (0)
  84 void core_SetupGDT(struct KernBootPrivate *, apicid_t, APTR, APTR, APTR);
  85 void core_SetupMMU(struct KernBootPrivate *, IPTR memtop);
  86 #endif
  87
  88 void core_CPUSetup(apicid_t, APTR, IPTR);
  89
  90 void ictl_Initialize(struct KernelBase *KernelBase);
  91
  92
  93 /* HW IRQ Related Functions */
  94 struct ExceptionContext;
  95 extern const void *IntrDefaultGates[256];
  96
  97 void core_LeaveInterrupt(struct ExceptionContext *);
  98 void core_Supervisor(struct ExceptionContext *);
  99
 100 void PlatformPostInit(void);
 101
 102 #endif /* KERNEL_INTERN_H_ */