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| author |   Tony Luck <tony.luck@intel.com> | 2005-06-15 14:06:48 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-06-15 14:06:48 -0700 |
| commit | f2cbb4f01936a3e4225692e03b084b78c56d386d (patch) | |
| tree | f89f3d8baa250589a38a4dd2df56f84cddae3c76 /arch/i386/kernel/cpu/amd.c | |
| parent | Merge with temp tree to get David's gdb inferior calls patch (diff) | |
| parent | [PATCH] update ppc64 defconfig (diff) | |
| download | linux-dev-f2cbb4f01936a3e4225692e03b084b78c56d386d.tar.xz linux-dev-f2cbb4f01936a3e4225692e03b084b78c56d386d.zip | |
Auto merge with /home/aegl/GIT/linus
Diffstat (limited to 'arch/i386/kernel/cpu/amd.c')
| -rw-r--r-- | arch/i386/kernel/cpu/amd.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c index 16dbc4151be4..73aeaf5a9d4e 100644 --- a/arch/i386/kernel/cpu/amd.c +++ b/arch/i386/kernel/cpu/amd.c @@ -24,9 +24,6 @@ __asm__(".align 4\nvide: ret"); static void __init init_amd(struct cpuinfo_x86 *c) { -#ifdef CONFIG_X86_SMP - int cpu = c == &boot_cpu_data ? 0 : c - cpu_data; -#endif u32 l, h; int mbytes = num_physpages >> (20-PAGE_SHIFT); int r; @@ -198,14 +195,19 @@ static void __init init_amd(struct cpuinfo_x86 *c) c->x86_num_cores = 1; } -#ifdef CONFIG_X86_SMP +#ifdef CONFIG_X86_HT /* * On a AMD dual core setup the lower bits of the APIC id * distingush the cores. Assumes number of cores is a power * of two. */ if (c->x86_num_cores > 1) { - cpu_core_id[cpu] = cpu >> hweight32(c->x86_num_cores - 1); + int cpu = smp_processor_id(); + unsigned bits = 0; + while ((1 << bits) < c->x86_num_cores) + bits++; + cpu_core_id[cpu] = phys_proc_id[cpu] & ((1<<bits)-1); + phys_proc_id[cpu] >>= bits; printk(KERN_INFO "CPU %d(%d) -> Core %d\n", cpu, c->x86_num_cores, cpu_core_id[cpu]); } |