Messages in this thread Patch in this message | | | Date | Sun, 22 Dec 2002 22:49:09 -0800 | From | "Martin J. Bligh" <> | Subject | [PATCH] 4/8 Move NUMA-Q support into subarch |
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Most of code originally by James Cleverdon. Abstracts out code from the mpparse stuff into:
mpc_apic_id() apicid_to_cpu_present()
instead of using clustered_apic_mode switching.
diff -urpN -X /home/fletch/.diff.exclude 12-numaq2/arch/i386/kernel/mpparse.c 13-numaq3/arch/i386/kernel/mpparse.c --- 12-numaq2/arch/i386/kernel/mpparse.c Sun Dec 22 12:08:42 2002 +++ 13-numaq3/arch/i386/kernel/mpparse.c Sun Dec 22 12:10:10 2002 @@ -104,28 +104,12 @@ static struct mpc_config_translation *tr void __init MP_processor_info (struct mpc_config_processor *m) { - int ver, quad, logical_apicid; + int ver, apicid; if (!(m->mpc_cpuflag & CPU_ENABLED)) return; - logical_apicid = m->mpc_apicid; - if (clustered_apic_mode) { - quad = translation_table[mpc_record]->trans_quad; - logical_apicid = (quad << 4) + - (m->mpc_apicid ? m->mpc_apicid << 1 : 1); - printk("Processor #%d %ld:%ld APIC version %d (quad %d, apic %d)\n", - m->mpc_apicid, - (m->mpc_cpufeature & CPU_FAMILY_MASK)>>8, - (m->mpc_cpufeature & CPU_MODEL_MASK)>>4, - m->mpc_apicver, quad, logical_apicid); - } else { - printk("Processor #%d %ld:%ld APIC version %d\n", - m->mpc_apicid, - (m->mpc_cpufeature & CPU_FAMILY_MASK)>>8, - (m->mpc_cpufeature & CPU_MODEL_MASK)>>4, - m->mpc_apicver); - } + apicid = mpc_apic_id(m, translation_table[mpc_record]->trans_quad); if (m->mpc_featureflag&(1<<0)) Dprintk(" Floating point unit present.\n"); @@ -178,7 +162,7 @@ void __init MP_processor_info (struct mp if (m->mpc_cpuflag & CPU_BOOTPROCESSOR) { Dprintk(" Bootup CPU\n"); boot_cpu_physical_apicid = m->mpc_apicid; - boot_cpu_logical_apicid = logical_apicid; + boot_cpu_logical_apicid = apicid; } num_processors++; @@ -191,11 +175,8 @@ void __init MP_processor_info (struct mp } ver = m->mpc_apicver; - if (clustered_apic_mode) { - phys_cpu_present_map |= (logical_apicid&0xf) << (4*quad); - } else { - phys_cpu_present_map |= apicid_to_cpu_present(m->mpc_apicid); - } + phys_cpu_present_map |= apicid_to_cpu_present(apicid); + /* * Validate version */ diff -urpN -X /home/fletch/.diff.exclude 12-numaq2/include/asm-i386/mach-default/mach_apic.h 13-numaq3/include/asm-i386/mach-default/mach_apic.h --- 12-numaq2/include/asm-i386/mach-default/mach_apic.h Sun Dec 22 12:09:41 2002 +++ 13-numaq3/include/asm-i386/mach-default/mach_apic.h Sun Dec 22 12:10:10 2002 @@ -57,9 +57,19 @@ static inline int cpu_present_to_apicid( return mps_cpu; } -static inline unsigned long apicid_to_cpu_present(int apicid) +static inline unsigned long apicid_to_cpu_present(int phys_apicid) { - return (1ul << apicid); + return (1ul << phys_apicid); +} + +static inline int mpc_apic_id(struct mpc_config_processor *m, int quad) +{ + printk("Processor #%d %ld:%ld APIC version %d\n", + m->mpc_apicid, + (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8, + (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4, + m->mpc_apicver); + return (m->mpc_apicid); } #endif /* __ASM_MACH_APIC_H */ diff -urpN -X /home/fletch/.diff.exclude 12-numaq2/include/asm-i386/mach-numaq/mach_apic.h 13-numaq3/include/asm-i386/mach-numaq/mach_apic.h --- 12-numaq2/include/asm-i386/mach-numaq/mach_apic.h Sun Dec 22 12:09:41 2002 +++ 13-numaq3/include/asm-i386/mach-numaq/mach_apic.h Sun Dec 22 12:10:10 2002 @@ -40,9 +40,31 @@ static inline int cpu_present_to_apicid( return ( ((mps_cpu/4)*16) + (1<<(mps_cpu%4)) ); } -static inline unsigned long apicid_to_cpu_present(int apicid) +static inline int generate_logical_apicid(int quad, int phys_apicid) { - return (1ul << apicid); + return ( (quad << 4) + (phys_apicid ? phys_apicid << 1 : 1) ); +} + +static inline int apicid_to_quad(int logical_apicid) +{ + return (logical_apicid >> 4); +} + +static inline unsigned long apicid_to_cpu_present(int logical_apicid) +{ + return ( (logical_apicid&0xf) << (4*apicid_to_quad(logical_apicid)) ); +} + +static inline int mpc_apic_id(struct mpc_config_processor *m, int quad) +{ + int logical_apicid = generate_logical_apicid(quad, m->mpc_apicid); + + printk("Processor #%d %ld:%ld APIC version %d (quad %d, apic %d)\n", + m->mpc_apicid, + (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8, + (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4, + m->mpc_apicver, quad, logical_apicid); + return logical_apicid; } #endif /* __ASM_MACH_APIC_H */ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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