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authorAndi Kleen <ak@suse.de>2005-04-16 15:25:18 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:25:18 -0700
commitebfcaa96fccc01301a577c5c56a5f00543cf167e (patch)
treebc2547d37afb5ac97b4354706550027b7153a581 /arch/x86_64
parent229992446b12fbc755825b6a9f38fc6a273e1f19 (diff)
downloadop-kernel-dev-ebfcaa96fccc01301a577c5c56a5f00543cf167e.zip
op-kernel-dev-ebfcaa96fccc01301a577c5c56a5f00543cf167e.tar.gz
[PATCH] x86_64: Rename the extended cpuid level field
It was confusingly named. Signed-off-by: Andi Kleen <ak@suse.de> DESC x86_64: Switch SMP bootup over to new CPU hotplug state machine EDESC From: "Andi Kleen" <ak@suse.de> This will allow hotplug CPU in the future and in general cleans up a lot of crufty code. It also should plug some races that the old hackish way introduces. Remove one old race workaround in NMI watchdog setup that is not needed anymore. I removed the old total sum of bogomips reporting code. The brag value of BogoMips has been greatly devalued in the last years on the open market. Real CPU hotplug will need some more work, but the infrastructure for it is there now. One drawback: the new TSC sync algorithm is less accurate than before. The old way of zeroing TSCs is too intrusive to do later. Instead the TSC of the BP is duplicated now, which is less accurate. Cc: <rusty@rustcorp.com.au> Cc: <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/setup.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index c091fa1..7ba4435 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -673,7 +673,7 @@ static int __init get_model_name(struct cpuinfo_x86 *c)
{
unsigned int *v;
- if (c->x86_cpuid_level < 0x80000004)
+ if (c->extended_cpuid_level < 0x80000004)
return 0;
v = (unsigned int *) c->x86_model_id;
@@ -689,7 +689,7 @@ static void __init display_cacheinfo(struct cpuinfo_x86 *c)
{
unsigned int n, dummy, eax, ebx, ecx, edx;
- n = c->x86_cpuid_level;
+ n = c->extended_cpuid_level;
if (n >= 0x80000005) {
cpuid(0x80000005, &dummy, &ebx, &ecx, &edx);
@@ -781,7 +781,7 @@ static int __init init_amd(struct cpuinfo_x86 *c)
}
display_cacheinfo(c);
- if (c->x86_cpuid_level >= 0x80000008) {
+ if (c->extended_cpuid_level >= 0x80000008) {
c->x86_num_cores = (cpuid_ecx(0x80000008) & 0xff) + 1;
if (c->x86_num_cores & (c->x86_num_cores - 1))
c->x86_num_cores = 1;
@@ -841,7 +841,6 @@ static void __init detect_ht(struct cpuinfo_x86 *c)
if (smp_num_siblings & (smp_num_siblings - 1))
index_msb++;
- /* RED-PEN surely this must run in the non HT case too! -AK */
cpu_core_id[cpu] = phys_pkg_id(index_msb);
if (c->x86_num_cores > 1)
@@ -878,7 +877,7 @@ static void __init init_intel(struct cpuinfo_x86 *c)
unsigned n;
init_intel_cacheinfo(c);
- n = c->x86_cpuid_level;
+ n = c->extended_cpuid_level;
if (n >= 0x80000008) {
unsigned eax = cpuid_eax(0x80000008);
c->x86_virt_bits = (eax >> 8) & 0xff;
@@ -927,7 +926,7 @@ void __init early_identify_cpu(struct cpuinfo_x86 *c)
c->x86_cache_alignment = c->x86_clflush_size;
c->x86_num_cores = 1;
c->x86_apicid = c == &boot_cpu_data ? 0 : c - cpu_data;
- c->x86_cpuid_level = 0;
+ c->extended_cpuid_level = 0;
memset(&c->x86_capability, 0, sizeof c->x86_capability);
/* Get vendor name */
@@ -974,7 +973,7 @@ void __init identify_cpu(struct cpuinfo_x86 *c)
/* AMD-defined flags: level 0x80000001 */
xlvl = cpuid_eax(0x80000000);
- c->x86_cpuid_level = xlvl;
+ c->extended_cpuid_level = xlvl;
if ((xlvl & 0xffff0000) == 0x80000000) {
if (xlvl >= 0x80000001) {
c->x86_capability[1] = cpuid_edx(0x80000001);
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