]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/commit - arch/x86/kernel/cpu/amd.c
[PATCH] x86_64: add support for Intel dual-core detection and displaying
authorAndi Kleen <ak@suse.de>
Sat, 16 Apr 2005 22:25:15 +0000 (15:25 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Sat, 16 Apr 2005 22:25:15 +0000 (15:25 -0700)
commit3dd9d514846cdca1dcef2e4fce666d85e199e844
tree28e60a8b733db213e88b0aee8ef3861a93a6fa48
parentf2ea2750fbe56867bc8e0eb595115b14195a3e5e
[PATCH] x86_64: add support for Intel dual-core detection and displaying

Appended patch adds the support for Intel dual-core detection and displaying
the core related information in /proc/cpuinfo.

It adds two new fields "core id" and "cpu cores" to x86 /proc/cpuinfo and the
"core id" field for x86_64("cpu cores" field is already present in x86_64).

Number of processor cores in a die is detected using cpuid(4) and this is
documented in IA-32 Intel Architecture Software Developer's Manual (vol 2a)
(http://developer.intel.com/design/pentium4/manuals/index_new.htm#sdm_vol2a)

This patch also adds cpu_core_map similar to cpu_sibling_map.

Slightly hacked by AK.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/i386/kernel/cpu/amd.c
arch/i386/kernel/cpu/common.c
arch/i386/kernel/cpu/intel.c
arch/i386/kernel/cpu/proc.c
arch/i386/kernel/smpboot.c
arch/x86_64/kernel/setup.c
arch/x86_64/kernel/smpboot.c
include/asm-i386/processor.h
include/asm-i386/smp.h
include/asm-x86_64/smp.h