From: Robert Love <rml@tech9.net>
To: Robert Love <rml@tech9.net>
Cc: "Nakajima, Jun" <jun.nakajima@intel.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
"'Dave Jones'" <davej@codemonkey.org.uk>,
"'akpm@digeo.com'" <akpm@digeo.com>,
"'linux-kernel@vger.kernel.org'" <linux-kernel@vger.kernel.org>,
"'chrisl@vmware.com'" <chrisl@vmware.com>,
"'Martin J. Bligh'" <mbligh@aracnet.com>
Subject: Re: [PATCH] hyper-threading information in /proc/cpuinfo
Date: 25 Oct 2002 17:39:55 -0400 [thread overview]
Message-ID: <1035581995.1501.3906.camel@phantasy> (raw)
In-Reply-To: <1035581420.734.3873.camel@phantasy>
On Fri, 2002-10-25 at 17:30, Robert Love wrote:
> - wrap print in "if (cpu_has_ht) { ... }" (Dave Jones)
> - remove initdata from phys_proc_id (Jun Nakajima)
> - match field names in latest 2.4-ac (Alan Cox)
missing this last bit, sorry..
Robert Love
cpu/proc.c | 7 +++++++
smpboot.c | 2 +-
2 files changed, 8 insertions(+), 1 deletion(-)
diff -urN linux-2.5.44/arch/i386/kernel/cpu/proc.c linux/arch/i386/kernel/cpu/proc.c
--- linux-2.5.44/arch/i386/kernel/cpu/proc.c 2002-10-19 00:02:29.000000000 -0400
+++ linux/arch/i386/kernel/cpu/proc.c 2002-10-25 15:18:03.000000000 -0400
@@ -17,6 +17,7 @@
* applications want to get the raw CPUID data, they should access
* /dev/cpu/<cpu_nr>/cpuid instead.
*/
+ extern int phys_proc_id[NR_CPUS];
static char *x86_cap_flags[] = {
/* Intel-defined */
"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
@@ -74,6 +75,12 @@
/* Cache size */
if (c->x86_cache_size >= 0)
seq_printf(m, "cache size\t: %d KB\n", c->x86_cache_size);
+#ifdef CONFIG_SMP
+ if (cpu_has_ht) {
+ seq_printf(m, "physical id\t: %d\n", phys_proc_id[n]);
+ seq_printf(m, "siblings\t: %d\n", smp_num_siblings);
+ }
+#endif
/* We use exception 16 if we have hardware math and we've either seen it or the CPU claims it is internal */
fpu_exception = c->hard_math && (ignore_irq13 || cpu_has_fpu);
diff -urN linux-2.5.44/arch/i386/kernel/smpboot.c linux/arch/i386/kernel/smpboot.c
--- linux-2.5.44/arch/i386/kernel/smpboot.c 2002-10-19 00:01:53.000000000 -0400
+++ linux/arch/i386/kernel/smpboot.c 2002-10-25 17:24:26.000000000 -0400
@@ -58,7 +58,7 @@
/* Number of siblings per CPU package */
int smp_num_siblings = 1;
-int __initdata phys_proc_id[NR_CPUS]; /* Package ID of each logical CPU */
+int phys_proc_id[NR_CPUS]; /* Package ID of each logical CPU */
/* Bitmask of currently online CPUs */
unsigned long cpu_online_map;
next prev parent reply other threads:[~2002-10-25 21:33 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-25 20:38 [PATCH] How to get number of physical CPU in linux from user space? Nakajima, Jun
2002-10-25 21:30 ` [PATCH] hyper-threading information in /proc/cpuinfo Robert Love
2002-10-25 21:39 ` Robert Love [this message]
2002-10-26 0:01 ` Dave Jones
2002-10-26 0:04 ` Jeff Garzik
2002-10-26 0:12 ` Dave Jones
2002-10-26 0:16 ` Jeff Garzik
2002-10-26 0:33 ` Robert Love
-- strict thread matches above, loose matches on Subject: below --
2002-10-25 21:50 Nakajima, Jun
2002-10-25 21:54 ` Robert Love
2002-10-25 22:19 ` chrisl
2002-10-25 22:14 ` Alan Cox
2002-10-25 22:06 ` Daniel Phillips
2002-10-25 22:10 ` Robert Love
2002-10-25 22:25 ` Jeff Garzik
2002-10-26 0:49 ` Rik van Riel
2002-10-26 15:45 ` Eric W. Biederman
2002-10-25 22:42 Nakajima, Jun
2002-10-25 22:57 ` Jeff Garzik
2002-10-25 23:21 ` David D. Hagood
2002-10-25 23:25 ` Robert Love
2002-10-25 23:45 ` David D. Hagood
2002-10-26 0:37 ` Robert Love
2002-10-25 23:51 ` Daniel Phillips
2002-10-25 23:24 Nakajima, Jun
2002-10-25 23:45 ` Jeff Garzik
2002-10-25 23:59 Nakajima, Jun
2002-10-26 0:43 ` J.A. Magallon
2002-10-26 0:47 ` J.A. Magallon
2002-10-26 2:51 ` Martin J. Bligh
2002-10-26 19:48 ` Rik van Riel
2002-10-28 18:53 ` chrisl
2002-10-28 21:54 ` J.A. Magallon
2002-10-26 0:26 Nakajima, Jun
2002-10-26 0:54 Nakajima, Jun
2002-10-26 1:58 Nakajima, Jun
2002-10-28 22:36 Nakajima, Jun
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