From e0da33646826b66ef933d47ea2fb7a693fd849bf Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sun, 8 Jun 2008 18:29:22 -0700 Subject: x86: introduce max_physical_apicid for bigsmp switching a multi-socket test-system with 3 or 4 ioapics, when 4 dualcore cpus or 2 quadcore cpus installed, needs to switch to bigsmp or physflat. CPU apic id is [4,11] instead of [0,7], and we need to check max apic id instead of cpu numbers. also add check for 32 bit when acpi is not compiled in or acpi=off. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/mach-generic/bigsmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/mach-generic') diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c index 95fc463056d0..2a243019acae 100644 --- a/arch/x86/mach-generic/bigsmp.c +++ b/arch/x86/mach-generic/bigsmp.c @@ -48,7 +48,7 @@ static const struct dmi_system_id bigsmp_dmi_table[] = { static int probe_bigsmp(void) { if (def_to_bigsmp) - dmi_bigsmp = 1; + dmi_bigsmp = 1; else dmi_check_system(bigsmp_dmi_table); return dmi_bigsmp; -- cgit v1.2.3 From d49c4288407b2ffa8cab270cb5bc6882abe969f6 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Sun, 8 Jun 2008 18:31:54 -0700 Subject: x86: make generic arch support NUMAQ ... so it could fall back to normal numa and we'd reduce the impact of the NUMAQ subarch. NUMAQ depends on GENERICARCH also decouple genericarch numa from acpi. also make it fall back to bigsmp if apicid > 8. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/mach-generic/Makefile | 10 +++++++--- arch/x86/mach-generic/bigsmp.c | 2 -- arch/x86/mach-generic/numaq.c | 41 +++++++++++++++++++++++++++++++++++++++++ arch/x86/mach-generic/probe.c | 15 ++++++++++++++- 4 files changed, 62 insertions(+), 6 deletions(-) create mode 100644 arch/x86/mach-generic/numaq.c (limited to 'arch/x86/mach-generic') diff --git a/arch/x86/mach-generic/Makefile b/arch/x86/mach-generic/Makefile index 19d6d407737b..0dbd7803a1d5 100644 --- a/arch/x86/mach-generic/Makefile +++ b/arch/x86/mach-generic/Makefile @@ -2,7 +2,11 @@ # Makefile for the generic architecture # -EXTRA_CFLAGS := -Iarch/x86/kernel +EXTRA_CFLAGS := -Iarch/x86/kernel -obj-y := probe.o summit.o bigsmp.o es7000.o default.o -obj-y += ../../x86/mach-es7000/ +obj-y := probe.o default.o +obj-$(CONFIG_X86_NUMAQ) += numaq.o +obj-$(CONFIG_X86_SUMMIT) += summit.o +obj-$(CONFIG_X86_BIGSMP) += bigsmp.o +obj-$(CONFIG_X86_ES7000) += es7000.o +obj-$(CONFIG_X86_ES7000) += ../../x86/mach-es7000/ diff --git a/arch/x86/mach-generic/bigsmp.c b/arch/x86/mach-generic/bigsmp.c index 2a243019acae..59d771714559 100644 --- a/arch/x86/mach-generic/bigsmp.c +++ b/arch/x86/mach-generic/bigsmp.c @@ -23,10 +23,8 @@ static int dmi_bigsmp; /* can be set by dmi scanners */ static int hp_ht_bigsmp(const struct dmi_system_id *d) { -#ifdef CONFIG_X86_GENERICARCH printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident); dmi_bigsmp = 1; -#endif return 0; } diff --git a/arch/x86/mach-generic/numaq.c b/arch/x86/mach-generic/numaq.c new file mode 100644 index 000000000000..8091e68764c4 --- /dev/null +++ b/arch/x86/mach-generic/numaq.c @@ -0,0 +1,41 @@ +/* + * APIC driver for the IBM NUMAQ chipset. + */ +#define APIC_DEFINITION 1 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static int mps_oem_check(struct mp_config_table *mpc, char *oem, + char *productid) +{ + numaq_mps_oem_check(mpc, oem, productid); + return found_numaq; +} + +static int probe_numaq(void) +{ + /* already know from get_memcfg_numaq() */ + return found_numaq; +} + +/* Hook from generic ACPI tables.c */ +static int acpi_madt_oem_check(char *oem_id, char *oem_table_id) +{ + return 0; +} + +struct genapic apic_numaq = APIC_INIT("NUMAQ", probe_numaq); diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c index c5ae751b994a..ba18dec48555 100644 --- a/arch/x86/mach-generic/probe.c +++ b/arch/x86/mach-generic/probe.c @@ -16,6 +16,7 @@ #include #include +extern struct genapic apic_numaq; extern struct genapic apic_summit; extern struct genapic apic_bigsmp; extern struct genapic apic_es7000; @@ -24,9 +25,18 @@ extern struct genapic apic_default; struct genapic *genapic = &apic_default; static struct genapic *apic_probe[] __initdata = { +#ifdef CONFIG_X86_NUMAQ + &apic_numaq, +#endif +#ifdef CONFIG_X86_SUMMIT &apic_summit, +#endif +#ifdef CONFIG_X86_BIGSMP &apic_bigsmp, +#endif +#ifdef CONFIG_X86_ES7000 &apic_es7000, +#endif &apic_default, /* must be last */ NULL, }; @@ -54,6 +64,7 @@ early_param("apic", parse_apic); void __init generic_bigsmp_probe(void) { +#if CONFIG_X86_BIGSMP /* * This routine is used to switch to bigsmp mode when * - There is no apic= option specified by the user @@ -67,6 +78,7 @@ void __init generic_bigsmp_probe(void) printk(KERN_INFO "Overriding APIC driver with %s\n", genapic->name); } +#endif } void __init generic_apic_probe(void) @@ -88,7 +100,8 @@ void __init generic_apic_probe(void) /* These functions can switch the APIC even after the initial ->probe() */ -int __init mps_oem_check(struct mp_config_table *mpc, char *oem, char *productid) +int __init mps_oem_check(struct mp_config_table *mpc, char *oem, + char *productid) { int i; for (i = 0; apic_probe[i]; ++i) { -- cgit v1.2.3 From b20d70b70e9aa854c47d2af10659f1033b6d69bb Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 9 Jun 2008 17:00:15 -0700 Subject: x86: make generic arch support NUMAQ, fix fix typo in bigsmp switching. Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/mach-generic/probe.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/mach-generic') diff --git a/arch/x86/mach-generic/probe.c b/arch/x86/mach-generic/probe.c index ba18dec48555..5a7e4619e1c4 100644 --- a/arch/x86/mach-generic/probe.c +++ b/arch/x86/mach-generic/probe.c @@ -64,7 +64,7 @@ early_param("apic", parse_apic); void __init generic_bigsmp_probe(void) { -#if CONFIG_X86_BIGSMP +#ifdef CONFIG_X86_BIGSMP /* * This routine is used to switch to bigsmp mode when * - There is no apic= option specified by the user -- cgit v1.2.3