From: Kianusch Sayah Karadji <kianusch@sk-tech.net> Those CPU's are found mostly in embedded systems ... one of the most prominent Hardware using GEODE CPU is probably soekris net4801 (http://www.soekris.com). This patch has been on my homepage (http://www.sk-tech.net/support/soekris.html) for quite a time - but I've been asked several time to have it included in the main kernel. Signed-off-by: Andrew Morton <akpm@osdl.org> --- 25-akpm/arch/i386/Kconfig | 18 +++++++++++++----- 25-akpm/arch/i386/Makefile | 5 +++++ 25-akpm/include/asm-i386/module.h | 2 ++ 3 files changed, 20 insertions(+), 5 deletions(-) diff -puN arch/i386/Kconfig~support-for-geode-cpus arch/i386/Kconfig --- 25/arch/i386/Kconfig~support-for-geode-cpus 2005-02-27 14:58:29.000000000 -0800 +++ 25-akpm/arch/i386/Kconfig 2005-02-27 14:58:29.000000000 -0800 @@ -183,6 +183,7 @@ config M386 - "Winchip-C6" for original IDT Winchip. - "Winchip-2" for IDT Winchip 2. - "Winchip-2A" for IDT Winchips with 3dNow! capabilities. + - "MediaGX/Geode" for Cyrix MediaGX aka Geode. - "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3. - "VIA C3-2 for VIA C3-2 "Nehemiah" (model 9 and above). @@ -310,6 +311,13 @@ config MWINCHIP3D stores for this CPU, which can increase performance of some operations. +config MGEODE + bool "MediaGX/Geode" + help + Select this for a Cyrix MediaGX aka Geode chip. Linux and GCC + treat this chip as a 586TSC with some extended instructions + and alignment reqirements. + config MCYRIXIII bool "CyrixIII/VIA-C3" help @@ -360,7 +368,7 @@ config X86_L1_CACHE_SHIFT int default "7" if MPENTIUM4 || X86_GENERIC default "4" if X86_ELAN || M486 || M386 - default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 + default "5" if MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE default "6" if MK7 || MK8 || MPENTIUMM config RWSEM_GENERIC_SPINLOCK @@ -379,7 +387,7 @@ config GENERIC_CALIBRATE_DELAY config X86_PPRO_FENCE bool - depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 + depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODE default y config X86_F00F_BUG @@ -409,7 +417,7 @@ config X86_POPAD_OK config X86_ALIGNMENT_16 bool - depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 + depends on MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODE default y config X86_GOOD_APIC @@ -434,7 +442,7 @@ config X86_USE_3DNOW config X86_OOSTORE bool - depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6) && MTRR + depends on (MWINCHIP3D || MWINCHIP2 || MWINCHIPC6 || MGEODE) && MTRR default y config HPET_TIMER @@ -570,7 +578,7 @@ config X86_IO_APIC config X86_TSC bool - depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2) && !X86_NUMAQ + depends on (MWINCHIP3D || MWINCHIP2 || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MGEODE) && !X86_NUMAQ default y config X86_MCE diff -puN arch/i386/Makefile~support-for-geode-cpus arch/i386/Makefile --- 25/arch/i386/Makefile~support-for-geode-cpus 2005-02-27 14:58:29.000000000 -0800 +++ 25-akpm/arch/i386/Makefile 2005-02-27 14:58:29.000000000 -0800 @@ -14,6 +14,8 @@ # 19990713 Artur Skawina <skawina@geocities.com> # Added '-march' and '-mpreferred-stack-boundary' support # +# Kianusch Sayah Karadji <kianusch@sk-tech.net> +# Added support for GEODE CPU LDFLAGS := -m elf_i386 OBJCOPYFLAGS := -O binary -R .note -R .comment -S @@ -52,6 +54,9 @@ cflags-$(CONFIG_MVIAC3_2) += $(call cc-o # AMD Elan support cflags-$(CONFIG_X86_ELAN) += -march=i486 +# MediaGX aka Geode support +cflags-$(CONFIG_MGEODE) += $(call cc-option,-march=pentium-mmx,-march=i586) + # -mregparm=3 works ok on gcc-3.0 and later # GCC_VERSION := $(call cc-version) diff -puN include/asm-i386/module.h~support-for-geode-cpus include/asm-i386/module.h --- 25/include/asm-i386/module.h~support-for-geode-cpus 2005-02-27 14:58:29.000000000 -0800 +++ 25-akpm/include/asm-i386/module.h 2005-02-27 14:58:29.000000000 -0800 @@ -52,6 +52,8 @@ struct mod_arch_specific #define MODULE_PROC_FAMILY "CYRIXIII " #elif defined CONFIG_MVIAC3_2 #define MODULE_PROC_FAMILY "VIAC3-2 " +#elif CONFIG_MGEODE +#define MODULE_PROC_FAMILY "GEODE " #else #error unknown processor family #endif _