Re: Kernel 2.4 CPU Arch issues

J.A. Magallon
2003-07-20T22:51:16Z

On 07.21, William M. Quarles wrote:
> Hi,
>
> In the 2.4 kernel, is it possible for you to separate the Pentium II and
> Pentium Pro as confiugration options, as you have done for the 2.6
> kernel, or is it too late in the development for that?
>

Something like this ?

--- linux-2.4.21-pre5-jam1/arch/i386/config.in.orig 2003-03-07 02:52:48.000000000 +0100
+++ linux-2.4.21-pre5-jam1/arch/i386/config.in 2003-03-07 02:57:27.000000000 +0100
@@ -31,7 +31,8 @@
586/K5/5x86/6x86/6x86MX CONFIG_M586 \
Pentium-Classic CONFIG_M586TSC \
Pentium-MMX CONFIG_M586MMX \
- Pentium-Pro/Celeron/Pentium-II CONFIG_M686 \
+ Pentium-Pro CONFIG_M686 \
+ Pentium-II/Celeron CONFIG_MPENTIUMII \
Pentium-III/Celeron(Coppermine) CONFIG_MPENTIUMIII \
Pentium-4 CONFIG_MPENTIUM4 \
K6/K6-II/K6-III CONFIG_MK6 \
@@ -106,6 +107,14 @@
define_bool CONFIG_X86_PPRO_FENCE y
define_bool CONFIG_X86_F00F_WORKS_OK y
fi
+if [ "$CONFIG_MPENTIUMII" = "y" ]; then
+ define_int CONFIG_X86_L1_CACHE_SHIFT 5
+ define_bool CONFIG_X86_HAS_TSC y
+ define_bool CONFIG_X86_GOOD_APIC y
+ define_bool CONFIG_X86_PGE y
+ define_bool CONFIG_X86_USE_PPRO_CHECKSUM y
+ define_bool CONFIG_X86_F00F_WORKS_OK y
+fi
if [ "$CONFIG_MPENTIUMIII" = "y" ]; then
define_int CONFIG_X86_L1_CACHE_SHIFT 5
define_bool CONFIG_X86_HAS_TSC y
--- linux-2.4.21-pre5-jam1/arch/i386/Makefile.orig 2003-03-07 02:59:46.000000000 +0100
+++ linux-2.4.21-pre5-jam1/arch/i386/Makefile 2003-03-07 03:00:08.000000000 +0100
@@ -52,6 +52,10 @@
CFLAGS += -march=i686
endif

+ifdef CONFIG_MPENTIUMII
+CFLAGS += $(call check_gcc,-march=pentium2,-march=i686)
+endif
+
ifdef CONFIG_MPENTIUMIII
CFLAGS += -march=i686
endif
--- linux-2.4.21-pre5-jam1/Documentation/Configure.help.orig 2003-03-07 03:02:41.000000000 +0100
+++ linux-2.4.21-pre5-jam1/Documentation/Configure.help 2003-03-07 03:03:45.000000000 +0100
@@ -4203,7 +4203,8 @@
(time stamp counter) register.
- "Pentium-Classic" for the Intel Pentium.
- "Pentium-MMX" for the Intel Pentium MMX.
- - "Pentium-Pro" for the Intel Pentium Pro/Celeron/Pentium II.
+ - "Pentium-Pro" for the Intel Pentium Pro.
+ - "Pentium-II" for the Intel Pentium II/Celeron.
- "Pentium-III" for the Intel Pentium III
and Celerons based on the Coppermine core.
- "Pentium-4" for the Intel Pentium 4.

--
J.A. Magallon <jamagallon@able.es> \ Software is like sex:
werewolf.able.es \ It's better when it's free
Mandrake Linux release 9.2 (Cooker) for i586
Linux 2.4.22-pre7-jam1m (gcc 3.3.1 (Mandrake Linux 9.2 3.3.1-0.5mdk))