From: Jaswinder Singh Rajput <jaswinder@kernel.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@kernel.org>,
Robert Richter <robert.richter@amd.com>,
Dave Jones <davej@redhat.com>,
LKML <linux-kernel@vger.kernel.org>,
x86 maintainers <x86@kernel.org>
Subject: [PATCH 1/10 -tip] x86: Add cpufeature for Processor Name
Date: Tue, 12 May 2009 21:07:03 +0530 [thread overview]
Message-ID: <1242142623.2547.13.camel@ht.satnam> (raw)
In-Reply-To: <1242142530.2547.11.camel@ht.satnam>
Processor Name / Brand String (Function 8000_0002h, 8000_0003h, 8000_0004h)
Functions 8000_0002h, 8000_0003h, and 8000_0004h each return up to 16 ASCII
bytes of the processor name in the EAX, EBX, ECX and EDX registers.
X86_FEATURE_PNAME will be useful for displaying MSRs like AMD:
MSRC001_00[35:30] Processor Name String Registers
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
---
arch/x86/include/asm/cpufeature.h | 5 +++--
arch/x86/kernel/cpu/common.c | 10 ++++++++++
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 13cc6a5..e1a4cc4 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -153,8 +153,9 @@
* Auxiliary flags: Linux defined - For features scattered in various
* CPUID levels like 0x6, 0xA etc
*/
-#define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */
-#define X86_FEATURE_ARAT (7*32+ 1) /* Always Running APIC Timer */
+#define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */
+#define X86_FEATURE_ARAT (7*32+ 1) /* Always Running APIC Timer */
+#define X86_FEATURE_PNAME (7*32+ 2) /* Processor Name */
/* Virtualization flags: Linux defined */
#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index e7fd5c4..542684c 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -563,6 +563,16 @@ static void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c)
}
}
+ /*
+ * Processor Name / Brand String
+ * (Function 8000_0002h, 8000_0003h, 8000_0004h)
+ * Functions 8000_0002h, 8000_0003h, and 8000_0004h each return up to
+ * 16 ASCII bytes of the processor name in the EAX, EBX, ECX and EDX
+ * registers.
+ */
+ if (c->extended_cpuid_level >= 0x80000004)
+ set_cpu_cap(c, X86_FEATURE_PNAME);
+
if (c->extended_cpuid_level >= 0x80000008) {
u32 eax = cpuid_eax(0x80000008);
--
1.6.0.6
next prev parent reply other threads:[~2009-05-12 15:46 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-12 15:35 [git-pull -tip][PATCH 0/10] few cpufeature additions and users Jaswinder Singh Rajput
2009-05-12 15:37 ` Jaswinder Singh Rajput [this message]
2009-05-12 15:38 ` [PATCH 2/10 -tip] x86: get_model_name() user of X86_FEATURE_PNAME Jaswinder Singh Rajput
2009-05-12 15:39 ` [PATCH 3/10 -tip] x86: Add cpufeatures for Advanced Power Management Jaswinder Singh Rajput
2009-05-12 15:40 ` [PATCH 4/10 -tip] x86: check_powernow() for K7 user of Advanced Power Management features Jaswinder Singh Rajput
2009-05-12 15:40 ` [PATCH 5/10 -tip] x86: check_powernow() for K8 and later " Jaswinder Singh Rajput
2009-05-12 15:41 ` [PATCH 6/10 -tip] x86: early_init_intel() " Jaswinder Singh Rajput
2009-05-12 15:42 ` [PATCH 7/10 -tip] x86: early_init_amd() " Jaswinder Singh Rajput
2009-05-12 15:43 ` [PATCH 8/10 -tip] x86: Add cpufeature for Microcode update Jaswinder Singh Rajput
2009-05-12 15:44 ` [PATCH 9/10 -tip] x86: collect_cpu_info() of Intel user of Microcode feature Jaswinder Singh Rajput
2009-05-12 15:44 ` [PATCH 10/10 -tip] x86: collect_cpu_info() of AMD " Jaswinder Singh Rajput
2009-05-13 5:47 ` Andreas Herrmann
2009-05-13 7:20 ` Jaswinder Singh Rajput
2009-05-13 5:46 ` [PATCH 8/10 -tip] x86: Add cpufeature for Microcode update Andreas Herrmann
2009-05-13 7:18 ` Jaswinder Singh Rajput
2009-05-13 6:18 ` [PATCH 6/10 -tip] x86: early_init_intel() user of Advanced Power Management features Andreas Herrmann
2009-05-13 7:20 ` Jaswinder Singh Rajput
2009-05-12 17:48 ` [PATCH 5/10 -tip] x86: check_powernow() for K8 and later " Ingo Molnar
2009-05-12 18:45 ` Jaswinder Singh Rajput
2009-05-13 6:36 ` Andreas Herrmann
2009-05-12 19:07 ` [PATCH 4/10 -tip] x86: check_powernow() for K7 " Jaswinder Singh Rajput
2009-05-12 19:06 ` [PATCH 3/10 -tip] x86: Add cpufeatures for Advanced Power Management Jaswinder Singh Rajput
2009-05-12 21:04 ` Thomas Gleixner
2009-05-13 8:57 ` Jaswinder Singh Rajput
2009-05-15 13:47 ` Jaswinder Singh Rajput
2009-05-17 12:17 ` Thomas Gleixner
2009-05-17 14:18 ` Jaswinder Singh Rajput
2009-05-19 15:01 ` Jaswinder Singh Rajput
2009-05-19 16:41 ` H. Peter Anvin
2009-05-20 7:15 ` Jaswinder Singh Rajput
2009-05-20 7:23 ` Jaswinder Singh Rajput
2009-05-20 18:30 ` H. Peter Anvin
2009-05-21 5:09 ` Jaswinder Singh Rajput
2009-05-13 6:27 ` Andreas Herrmann
2009-05-21 6:14 ` H. Peter Anvin
2009-05-21 6:11 ` [PATCH 1/10 -tip] x86: Add cpufeature for Processor Name H. Peter Anvin
2009-05-21 7:38 ` Jaswinder Singh Rajput
2009-05-21 20:09 ` H. Peter Anvin
2009-05-12 20:15 ` [git-pull -tip][PATCH 0/10] few cpufeature additions and users Jaswinder Singh Rajput
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