arch/x86_64-pc/kernel/kernel_cpu.h

   1 /* CPU-specific definitions for x86-64 */
   2
   3 #ifndef KERNEL_CPU_H_
   4 #define KERNEL_CPU_H_
   5
   6 #include <aros/x86_64/cpucontext.h>
   7
   8 #include "segments.h"
   9
  10 /* We use native context format, no conversion needed */
  11 #define regs_t struct ExceptionContext
  12 /* There are no private add-ons */
  13 #define AROSCPUContext ExceptionContext
  14
  15 /* We have no VBlank emulation */
  16 #define NO_VBLANK_EMU
  17
  18 /* User/supervisor mode switching */
  19 #define cpumode_t __unused char
  20
  21 #define goSuper() 0
  22 #define goUser()
  23 #define goBack(mode)
  24
  25 /* A command to issue a syscall */
  26 #define krnSysCall(num) asm volatile("int $0xfe"::"a"(num):"memory")
  27
  28 #define IN_USER_MODE                                            \
  29 ({                                                              \
  30     short __value;                                              \
  31     __asm__ __volatile__ ("mov %%cs,%%ax":"=a"(__value));       \
  32     (__value & 0x03);                                           \
  33 })
  34
  35 #define PRINT_CPUCONTEXT(regs)                                                                                  \
  36     bug("[Kernel] Flags=0x%08X\n", regs->Flags);                                                                \
  37     bug("[Kernel] stack=%04x:%012x rflags=%016x ip=%04x:%012x ds=0x%04X\n",                                     \
  38                  regs->ss, regs->rsp, regs->rflags, regs->cs, regs->rip, regs->ds);                             \
  39     bug("[Kernel] rax=%016lx rbx=%016lx rcx=%016lx rdx=%016lx\n", regs->rax, regs->rbx, regs->rcx, regs->rdx);  \
  40     bug("[Kernel] rsi=%016lx rdi=%016lx rbp=%016lx rsp=%016lx\n", regs->rsi, regs->rdi, regs->rbp, regs->rsp);  \
  41     bug("[Kernel] r08=%016lx r09=%016lx r10=%016lx r11=%016lx\n", regs->r8, regs->r9, regs->r10, regs->r11);    \
  42     bug("[Kernel] r12=%016lx r13=%016lx r14=%016lx r15=%016lx\n", regs->r12, regs->r13, regs->r14, regs->r15);
  43
  44 #define SP(regs) regs->rsp
  45
  46 #endif