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authorAlexey Starikovskiy <astarikovskiy@suse.de>2008-04-04 23:41:07 +0400
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:41:34 +0200
commit61048c6328819b0973ef662f6d46f2e2bc753ceb (patch)
tree09efa08f2e4a18b191769aad558144c2bde404df /arch
parent16ecf7a47cf4f1c97189a551b001195aed550cc2 (diff)
x86: don't set IO APIC features if IO APIC is not enabled
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/mpparse_32.c24
1 files changed, 21 insertions, 3 deletions
diff --git a/arch/x86/kernel/mpparse_32.c b/arch/x86/kernel/mpparse_32.c
index 4f4cfad9ae5..09cb7781368 100644
--- a/arch/x86/kernel/mpparse_32.c
+++ b/arch/x86/kernel/mpparse_32.c
@@ -221,6 +221,8 @@ static void __init MP_bus_info (struct mpc_config_bus *m)
}
}
+#ifdef CONFIG_X86_IO_APIC
+
static int bad_ioapic(unsigned long address)
{
if (nr_ioapics >= MAX_IO_APICS) {
@@ -263,6 +265,8 @@ static void __init MP_intsrc_info (struct mpc_config_intsrc *m)
panic("Max # of irq sources exceeded!!\n");
}
+#endif
+
static void __init MP_lintsrc_info (struct mpc_config_lintsrc *m)
{
Dprintk("Lint: type %d, pol %d, trig %d, bus %d,"
@@ -421,21 +425,25 @@ static int __init smp_read_mpc(struct mp_config_table *mpc)
}
case MP_IOAPIC:
{
+#ifdef CONFIG_X86_IO_APIC
struct mpc_config_ioapic *m=
(struct mpc_config_ioapic *)mpt;
MP_ioapic_info(m);
mpt+=sizeof(*m);
count+=sizeof(*m);
+#endif
break;
}
case MP_INTSRC:
{
+#ifdef CONFIG_X86_IO_APIC
struct mpc_config_intsrc *m=
(struct mpc_config_intsrc *)mpt;
MP_intsrc_info(m);
mpt+=sizeof(*m);
count+=sizeof(*m);
+#endif
break;
}
case MP_LINTSRC:
@@ -463,6 +471,8 @@ static int __init smp_read_mpc(struct mp_config_table *mpc)
return num_processors;
}
+#ifdef CONFIG_X86_IO_APIC
+
static int __init ELCR_trigger(unsigned int irq)
{
unsigned int port;
@@ -537,11 +547,15 @@ static void __init construct_default_ioirq_mptable(int mpc_default_type)
MP_intsrc_info(&intsrc);
}
+#endif
+
static inline void __init construct_default_ISA_mptable(int mpc_default_type)
{
struct mpc_config_processor processor;
struct mpc_config_bus bus;
+#ifdef CONFIG_X86_IO_APIC
struct mpc_config_ioapic ioapic;
+#endif
struct mpc_config_lintsrc lintsrc;
int linttypes[2] = { mp_ExtINT, mp_NMI };
int i;
@@ -597,6 +611,7 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
MP_bus_info(&bus);
}
+#ifdef CONFIG_X86_IO_APIC
ioapic.mpc_type = MP_IOAPIC;
ioapic.mpc_apicid = 2;
ioapic.mpc_apicver = mpc_default_type > 4 ? 0x10 : 0x01;
@@ -608,7 +623,7 @@ static inline void __init construct_default_ISA_mptable(int mpc_default_type)
* We set up most of the low 16 IO-APIC pins according to MPS rules.
*/
construct_default_ioirq_mptable(mpc_default_type);
-
+#endif
lintsrc.mpc_type = MP_LINTSRC;
lintsrc.mpc_irqflag = 0; /* conforming */
lintsrc.mpc_srcbusid = 0;
@@ -670,6 +685,8 @@ void __init get_smp_config (void)
printk(KERN_ERR "... disabling SMP support. (tell your hw vendor)\n");
return;
}
+
+#ifdef CONFIG_X86_IO_APIC
/*
* If there are no explicit MP IRQ entries, then we are
* broken. We set up most of the low 16 IO-APIC pins to
@@ -687,7 +704,7 @@ void __init get_smp_config (void)
construct_default_ioirq_mptable(0);
}
-
+#endif
} else
BUG();
@@ -967,8 +984,9 @@ void __init mp_config_acpi_legacy_irqs (void)
intsrc.mpc_type = MP_INTSRC;
intsrc.mpc_irqflag = 0; /* Conforming */
intsrc.mpc_srcbus = MP_ISA_BUS;
+#ifdef CONFIG_X86_IO_APIC
intsrc.mpc_dstapic = mp_ioapics[ioapic].mpc_apicid;
-
+#endif
/*
* Use the default configuration for the IRQs 0-15. Unless
* overridden by (MADT) interrupt source override entries.