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x86: make 64bit identify_cpu use cpu_dev v2

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v2: fix early_panic on this config:

  http://redhat.com/~mingo/misc/config-Thu_Jun_19_14_22_37_CEST_2008.bad

reason : struct cpu_vendor_dev size is 16, need to make table to be 16
         byte alignment

also print out the cpu supported...

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2008-06-19 15:30:31 -07:00
committed by Ingo Molnar
parent dcd32b6a1f
commit c49c412a47
2 changed files with 21 additions and 0 deletions
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20
arch/x86/kernel/setup_64.c
View File

@@ -664,6 +664,25 @@ static void __cpuinit get_cpu_vendor(struct cpuinfo_x86 *c)
c->x86_vendor = X86_VENDOR_UNKNOWN; c->x86_vendor = X86_VENDOR_UNKNOWN;
} }
static void __init early_cpu_support_print(void)
{
int i,j;
struct cpu_dev *cpu_devx;
printk("KERNEL supported cpus:\n");
for (i = 0; i < X86_VENDOR_NUM; i++) {
cpu_devx = cpu_devs[i];
if (!cpu_devx)
continue;
for (j = 0; j < 2; j++) {
if (!cpu_devx->c_ident[j])
continue;
printk(" %s %s\n", cpu_devx->c_vendor,
cpu_devx->c_ident[j]);
}
}
}
static void __init early_cpu_init(void) static void __init early_cpu_init(void)
{ {
struct cpu_vendor_dev *cvdev; struct cpu_vendor_dev *cvdev;
@@ -672,6 +691,7 @@ static void __init early_cpu_init(void)
cvdev < __x86cpuvendor_end ; cvdev < __x86cpuvendor_end ;
cvdev++) cvdev++)
cpu_devs[cvdev->vendor] = cvdev->cpu_dev; cpu_devs[cvdev->vendor] = cvdev->cpu_dev;
early_cpu_support_print();
} }
/* Do some early cpuid on the boot CPU to get some parameter that are /* Do some early cpuid on the boot CPU to get some parameter that are

1
arch/x86/kernel/vmlinux_64.lds.S
View File

@@ -177,6 +177,7 @@ SECTIONS
*(.con_initcall.init) *(.con_initcall.init)
} }
__con_initcall_end = .; __con_initcall_end = .;
. = ALIGN(16);
__x86cpuvendor_start = .; __x86cpuvendor_start = .;
.x86cpuvendor.init : AT(ADDR(.x86cpuvendor.init) - LOAD_OFFSET) { .x86cpuvendor.init : AT(ADDR(.x86cpuvendor.init) - LOAD_OFFSET) {
*(.x86cpuvendor.init) *(.x86cpuvendor.init)