linux-kernel - [PATCH 11/15] x86: move enabling of io_apic to prepare

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Message-Id: <1213021018-14159-12-git-send-email-gcosta@redhat.com>
Date:	Mon,  9 Jun 2008 11:16:54 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, tglx@...utronix.de, mingo@...e.hu,
	hugh@...itas.com
Subject: [PATCH 11/15] x86: move enabling of io_apic to prepare_cpus

Do it, instead of keeping in io_apic_32.c. This is the way x86_64 already does.

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 arch/x86/kernel/apic_32.c    |    6 +-----
 arch/x86/kernel/io_apic_32.c |    2 +-
 arch/x86/kernel/smpboot.c    |    3 ++-
 include/asm-x86/hw_irq.h     |    3 ---
 4 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c
index fa8cf79..a06442a 100644
--- a/arch/x86/kernel/apic_32.c
+++ b/arch/x86/kernel/apic_32.c
@@ -1277,11 +1277,7 @@ int __init APIC_init_uniprocessor(void)
 #endif
 		localise_nmi_watchdog();
 	end_local_APIC_setup();
-#ifdef CONFIG_X86_IO_APIC
-	if (smp_found_config)
-		if (!skip_ioapic_setup && nr_ioapics)
-			setup_IO_APIC();
-#endif
+
 	setup_boot_clock();
 
 	return 0;
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index 7fc071f..cb79ce3 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -1606,7 +1606,7 @@ void /*__init*/ print_PIC(void)
 
 #endif  /*  0  */
 
-static void __init enable_IO_APIC(void)
+void __init enable_IO_APIC(void)
 {
 	union IO_APIC_reg_01 reg_01;
 	int i8259_apic, i8259_pin;
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index c4bb997..49d2900 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1179,13 +1179,14 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
 	 */
 	setup_local_APIC();
 
-#ifdef CONFIG_X86_64
+#ifdef CONFIG_X86_IO_APIC
 	/*
 	 * Enable IO APIC before setting up error vector
 	 */
 	if (!skip_ioapic_setup && nr_ioapics)
 		enable_IO_APIC();
 #endif
+
 	end_local_APIC_setup();
 
 	map_cpu_to_logical_apicid();
diff --git a/include/asm-x86/hw_irq.h b/include/asm-x86/hw_irq.h
index 18f067c..31b56cd 100644
--- a/include/asm-x86/hw_irq.h
+++ b/include/asm-x86/hw_irq.h
@@ -66,10 +66,7 @@ extern void disable_IO_APIC(void);
 extern void print_IO_APIC(void);
 extern int IO_APIC_get_PCI_irq_vector(int bus, int slot, int fn);
 extern void setup_ioapic_dest(void);
-
-#ifdef CONFIG_X86_64
 extern void enable_IO_APIC(void);
-#endif
 
 /* IPI functions */
 extern void send_IPI_self(int vector);
-- 
1.5.4.5

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