RE: 256 apic id for amd64

[YhLu <YhLu@tyan.com>]

[-- Attachment #1: Type: text/plain, Size: 38 bytes --]

Please refer the patch.

Regards

YH


[-- Attachment #2: x86_64_phy_proc_id.patch --]
[-- Type: application/octet-stream, Size: 1134 bytes --]

664a665
> 	unsigned int n;
687c688,690
< 	if (c->cpuid_level >= 0x80000008) {
---
> 	n = cpuid_eax(0x80000000);
> 
> 	if (n >= 0x80000008) {
698c701
< 			int cpu = c->x86_apicid;
---
> 			int cpu = c->x86_apicid; // that is initial apicid
725,749c728,730
< 		index_lsb = 0;
< 		index_msb = 31;
< 		/*
< 		 * At this point we only support two siblings per
< 		 * processor package.
< 		 */
< 		if (smp_num_siblings > NR_CPUS) {
< 			printk(KERN_WARNING "CPU: Unsupported number of the siblings %d", smp_num_siblings);
< 			smp_num_siblings = 1;
< 			return;
< 		}
< 		tmp = smp_num_siblings;
< 		while ((tmp & 1) == 0) {
< 			tmp >>=1 ;
< 			index_lsb++;
< 		}
< 		tmp = smp_num_siblings;
< 		while ((tmp & 0x80000000 ) == 0) {
< 			tmp <<=1 ;
< 			index_msb--;
< 		}
< 		if (index_lsb != index_msb )
< 			index_msb++;
< 		phys_proc_id[cpu] = phys_pkg_id(index_msb);
< 		
---
> 
> 		phys_proc_id[cpu] =  c->x86_apicid >> hweight32(c->x86_num_cores - 1);
> 
1067c1048
< 		seq_printf(m, "cpu cores\t: %d\n", c->x86_num_cores);
---
> 		seq_printf(m, "\ncpu cores\t: %d\n", c->x86_num_cores);