src/add-ons/kernel/cpu/x86/intel.cpp

   1 /*
   2  * Copyright 2005-2009, Haiku, Inc.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Axel Dörfler, axeld@pinc-software.de
   7  */
   8
   9
  10 #include "intel.h"
  11 #include "generic_x86.h"
  12
  13 #include <cpu.h>
  14
  15
  16 static void
  17 intel_init_mtrrs(void)
  18 {
  19         generic_init_mtrrs(generic_count_mtrrs());
  20 }
  21
  22
  23 static status_t
  24 intel_init(void)
  25 {
  26         if (gCPU[0].arch.vendor != VENDOR_INTEL)
  27                 return B_ERROR;
  28
  29         generic_mtrr_compute_physical_mask();
  30         generic_dump_mtrrs(generic_count_mtrrs());
  31
  32         return B_OK;
  33 }
  34
  35
  36 static void
  37 intel_set_mtrrs(uint8 defaultType, const x86_mtrr_info* infos, uint32 count)
  38 {
  39         generic_set_mtrrs(defaultType, infos, count, generic_count_mtrrs());
  40 }
  41
  42
  43 static status_t
  44 intel_stdops(int32 op, ...)
  45 {
  46         switch (op) {
  47                 case B_MODULE_INIT:
  48                         return intel_init();
  49                 case B_MODULE_UNINIT:
  50                         return B_OK;
  51         }
  52
  53         return B_ERROR;
  54 }
  55
  56
  57 x86_cpu_module_info gIntelModule = {
  58         {
  59                 "cpu/generic_x86/intel/v1",
  60                 0,
  61                 intel_stdops,
  62         },
  63
  64         generic_count_mtrrs,
  65         intel_init_mtrrs,
  66
  67         generic_set_mtrr,
  68         generic_get_mtrr,
  69         intel_set_mtrrs
  70 };