Patch to enable K6-2 and K6-3 processor optimizations

PATCH David Bronaugh 1 participant 1 message Aug 9, 2002

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David Bronaugh

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2002-08-09 08:48 UTC #0 lore raw

Hi,

Well, I said I was new to this; forgot to include the patch, and what kernel version it was against.

It's against 2.4.19, but doesn't really change much, so should apply to most kernel revisions.

Patch follows:

arch/i386/Makefile 2002-08-09 01:16:40.000000000 -0700 renamed from arch/i386/Makefile 2001-04-12 12:20:31.000000000 -0700 +10 -0

diff -Naur -X dontdiff linux/arch/i386/Makefile linux-2.4/arch/i386/Makefile
@@ -62,6 +62,16 @@
 CFLAGS += $(shell if $(CC) -march=k6 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6"; else echo "-march=i586"; fi)
 endif
 
+ifdef CONFIG_MK6_2
+CFLAGS += $(shell if $(CC) -march=k6-2 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6-2"; else if $(CC) -march=k6 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6"; else echo "-march=i586"; fi; fi)
+endif
+
+ifdef CONFIG_MK6_3
+CFLAGS += $(shell if $(CC) -march=k6-3 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6-3"; else if $(CC) -march=k6 -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=k6"; else echo "-march=i586"; fi; fi)
+endif
+
+
+
 ifdef CONFIG_MK7
 CFLAGS += $(shell if $(CC) -march=athlon -S -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-march=athlon"; else echo "-march=i686 -malign-functions=4"; fi) 
 endif

arch/i386/config.in 2002-08-09 01:11:39.000000000 -0700 renamed from arch/i386/config.in 2002-08-09 01:21:03.000000000 -0700 +17 -1

diff -Naur -X dontdiff linux/arch/i386/config.in linux-2.4/arch/i386/config.in
@@ -35,7 +35,9 @@
         Pentium-Pro/Celeron/Pentium-II         CONFIG_M686 \
         Pentium-III/Celeron(Coppermine)        CONFIG_MPENTIUMIII \
         Pentium-4                              CONFIG_MPENTIUM4 \
-        K6/K6-II/K6-III                        CONFIG_MK6 \
+        K6                                     CONFIG_MK6 \
+        K6-II                                  CONFIG_MK6_2 \
+        K6-III                                 CONFIG_MK6_3 \
         Athlon/Duron/K7                        CONFIG_MK7 \
         Elan                                   CONFIG_MELAN \
         Crusoe                                 CONFIG_MCRUSOE \

@@ -119,6 +121,20 @@
    define_bool CONFIG_X86_TSC y
    define_bool CONFIG_X86_USE_PPRO_CHECKSUM y
 fi
+# Since I don't know whether CONFIG_X86_USE_3DNOW means 3dnowext or not, I'm playing it safe
+if [ "$CONFIG_MK6_2" = "y" ]; then
+   define_int  CONFIG_X86_L1_CACHE_SHIFT 5
+   define_bool CONFIG_X86_ALIGNMENT_16 y
+   define_bool CONFIG_X86_TSC y
+   define_bool CONFIG_X86_USE_PPRO_CHECKSUM y
+fi
+if [ "$CONFIG_MK6_3" = "y" ]; then
+   define_int  CONFIG_X86_L1_CACHE_SHIFT 5
+   define_bool CONFIG_X86_ALIGNMENT_16 y
+   define_bool CONFIG_X86_TSC y
 
+   define_bool CONFIG_X86_USE_PPRO_CHECKSUM y
+   define_bool CONFIG_X86_USE_3DNOW y
+fi
 if [ "$CONFIG_MK7" = "y" ]; then
    define_int  CONFIG_X86_L1_CACHE_SHIFT 6

define_bool CONFIG_X86_TSC y