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kernel/cpu: Do not use get_system_info() to identify CPU

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This commit is contained in:
Pawel Dziepak
2013-12-12 02:53:18 +01:00
parent 02749e2429
commit fa15750925
3 changed files with 7 additions and 19 deletions
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src/add-ons/kernel/cpu/x86/amd.cpp
+3 -7
View File
@@ -10,7 +10,7 @@
#include "amd.h"
#include "generic_x86.h"
#include <OS.h>
#include <cpu.h>
static void
@@ -23,16 +23,12 @@ amd_init_mtrrs(void)
static status_t
amd_init(void)
{
system_info info;
if (get_system_info(&info) != B_OK)
return B_ERROR;
if ((info.cpu_type & B_CPU_x86_VENDOR_MASK) != B_CPU_AMD_x86)
if (gCPU[0].arch.vendor != VENDOR_AMD)
return B_ERROR;
// The K6-2 doesn't seem to support write-combining (before model 9),
// so we ignore anything before that one.
if (info.cpu_type <= B_CPU_AMD_K6_2)
if (gCPU[0].arch.family <= 5 || gCPU[0].arch.model < 9)
return B_ERROR;
generic_mtrr_compute_physical_mask();
src/add-ons/kernel/cpu/x86/intel.cpp
+2 -6
View File
@@ -10,7 +10,7 @@
#include "intel.h"
#include "generic_x86.h"
#include <OS.h>
#include <cpu.h>
static void
@@ -23,11 +23,7 @@ intel_init_mtrrs(void)
static status_t
intel_init(void)
{
system_info info;
if (get_system_info(&info) != B_OK)
return B_ERROR;
if ((info.cpu_type & B_CPU_x86_VENDOR_MASK) != B_CPU_INTEL_x86)
if (gCPU[0].arch.vendor != VENDOR_INTEL)
return B_ERROR;
generic_mtrr_compute_physical_mask();
src/add-ons/kernel/cpu/x86/via.cpp
+2 -6
View File
@@ -10,7 +10,7 @@
#include "via.h"
#include "generic_x86.h"
#include <OS.h>
#include <cpu.h>
static uint32
@@ -41,11 +41,7 @@ via_set_mtrrs(uint8 defaultType, const x86_mtrr_info* infos, uint32 count)
static status_t
via_init(void)
{
system_info info;
if (get_system_info(&info) != B_OK)
return B_ERROR;
if ((info.cpu_type & B_CPU_x86_VENDOR_MASK) != B_CPU_VIA_IDT_x86)
if (gCPU[0].arch.vendor != VENDOR_CENTAUR)
return B_ERROR;
// current VIA CPUs have always 36 bit (or less?)