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From: Andi Kleen <ak@suse.de>
To: takada <takada@mbf.nifty.com>,
	Jordan Crouse <jordan.crouse@amd.com>, Andi Kleen <ak@suse.de>,
	Alan Cox <alan@lxorguk.ukuu.org.uk>,
	patches@x86-64.org, linux-kernel@vger.kernel.org
Subject: [PATCH x86 for review III] [2/29] i386: support Classic MediaGXm
Date: Mon, 12 Feb 2007 17:51:21 +0100 (CET)	[thread overview]
Message-ID: <20070212165121.BF0E613F45@wotan.suse.de> (raw)
In-Reply-To: <20070212551.664370000@suse.de>


From: takada <takada@mbf.nifty.com>

I hope to support "classic" MediaGXm in kernel.

The DIR1 register of MediaGXm( or Geode) shows the following values for
identify CPU.  For example, My MediaGXm shows 0x42.

We can read National Semiconductor's datasheet without any NDAs.
  http://www.national.com/pf/GX/GXLV.html

from datasheets:
DIR1
0x30 - 0x33 GXm rev. 1.0 - 2.3
0x34 - 0x4f GXm rev. 2.4 - 3.x
0x5x        GXm rev. 5.0 - 5.4
0x6x        GXLV
0x7x         (unknow)
0x8x	    Gx1

In nsc driver of X, accept 0x30 through 0x82. What will 0x7x mean?

Cc: Jordan Crouse <jordan.crouse@amd.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andi Kleen <ak@suse.de>

---

 arch/i386/kernel/cpu/cyrix.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

Index: linux/arch/i386/kernel/cpu/cyrix.c
===================================================================
--- linux.orig/arch/i386/kernel/cpu/cyrix.c
+++ linux/arch/i386/kernel/cpu/cyrix.c
@@ -285,10 +285,15 @@ static void __cpuinit init_cyrix(struct 
 		/* GXm supports extended cpuid levels 'ala' AMD */
 		if (c->cpuid_level == 2) {
 			/* Enable cxMMX extensions (GX1 Datasheet 54) */
-			setCx86(CX86_CCR7, getCx86(CX86_CCR7)|1);
+			setCx86(CX86_CCR7, getCx86(CX86_CCR7) | 1);
 			
-			/* GXlv/GXm/GX1 */
-			if((dir1 >= 0x50 && dir1 <= 0x54) || dir1 >= 0x63)
+			/*
+			 * GXm : 0x30 ... 0x5f GXm  datasheet 51
+			 * GXlv: 0x6x          GXlv datasheet 54
+			 *  ?  : 0x7x
+			 * GX1 : 0x8x          GX1  datasheet 56
+			 */
+			if((0x30 <= dir1 && dir1 <= 0x6f) || (0x80 <=dir1 && dir1 <= 0x8f))
 				geode_configure();
 			get_model_name(c);  /* get CPU marketing name */
 			return;

  reply	other threads:[~2007-02-12 16:57 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-12 16:51 [PATCH x86 for review III] [1/29] i386: avoid gcc extension Andi Kleen
2007-02-12 16:51 ` Andi Kleen [this message]
2007-02-12 16:51 ` [PATCH x86 for review III] [3/29] i386: entry.S END/ENDPROC annotations Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [4/29] x86_64: clean up sparsemem memory_present call Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [5/29] i386: arch/i386/kernel/alternative.c should #include <asm/bugs.h> Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [6/29] i386: Remove unused kernel config option X86_XADD Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [7/29] x86_64: update IO-APIC dest field to 8-bit for xAPIC Andi Kleen
2007-02-12 19:49   ` Eric W. Biederman
2007-02-12 16:51 ` [PATCH x86 for review III] [8/29] x86_64: avoid warning message livelock Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [9/29] x86_64: Minor patch for compilation warning in x86_64 signal code Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [10/29] i386: don't include bugs.h Andi Kleen
2007-02-12 17:35   ` Jörn Engel
2007-02-12 18:33     ` Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [11/29] i386: add option to show more code in oops reports Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [12/29] x86_64: 32-bit ptrace mangles sixth system call argument Andi Kleen
2007-02-12 22:04   ` Chuck Ebbert
2007-02-12 22:26     ` Andi Kleen
2007-02-14 17:52     ` Jeff Dike
2007-02-12 16:51 ` [PATCH x86 for review III] [13/29] i386: geode configuration fixes Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [15/29] x86_64: Fix wrong gcc check in bitops.h Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [16/29] i386: Remove fastcall in paravirt.[ch] Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [17/29] x86: Add new CPUID bits for AMD Family 10 CPUs in /proc/cpuinfo Andi Kleen
2007-02-12 22:11   ` Chuck Ebbert
2007-02-12 22:23     ` Andi Kleen
2007-02-12 22:37       ` Chuck Ebbert
2007-02-12 22:38         ` Andi Kleen
2007-02-12 23:04           ` Chuck Ebbert
2007-02-12 16:51 ` [PATCH x86 for review III] [18/29] i386: Add L3 cache support to AMD CPUID4 emulation Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [19/29] x86: Enable NMI watchdog for AMD Family 0x10 CPUs Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [20/29] i386: Fix warning in microcode.c Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [21/29] i386: Fix warning in cpu initialization Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [23/29] x86: Don't require the vDSO for handling a.out signals Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [24/29] x86_64: -mm merge plans for 2.6.21 Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [25/29] i386: paravirt unhandled fallthrough Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [26/29] i386: Move mce_disabled to asm/mce.h Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [27/29] i386: Rename cpu_gdt_descr and remove extern declaration from smpboot.c Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [28/29] i386: Remove extern declaration from mm/discontig.c, put in header Andi Kleen
2007-02-12 16:51 ` [PATCH x86 for review III] [29/29] x86: Unify pcspeaker platform device code between i386/x86-64 Andi Kleen
2007-02-12 19:43 ` [PATCH x86 for review III] [1/29] i386: avoid gcc extension Jochen Voß
2007-02-12 20:18   ` Randy Dunlap
2007-02-13 15:11 ` Arnd Bergmann
2007-02-13 16:10   ` Randy Dunlap
2007-02-13 16:52     ` Andi Kleen

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