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Date: Mon, 6 Dec 2010 13:33:51 GMT
From: tip-bot for Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
yinghai@...nel.org, bigeasy@...utronix.de, tglx@...utronix.de
Subject: [tip:x86/apic] x86: io_apic: Split setup_ioapic_ids_from_mpc()
Commit-ID: a38c5380ef9f088be9f49b6e4c5d80af8b1b5cd4
Gitweb: http://git.kernel.org/tip/a38c5380ef9f088be9f49b6e4c5d80af8b1b5cd4
Author: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
AuthorDate: Fri, 26 Nov 2010 17:50:20 +0100
Committer: Thomas Gleixner <tglx@...utronix.de>
CommitDate: Mon, 6 Dec 2010 14:30:28 +0100
x86: io_apic: Split setup_ioapic_ids_from_mpc()
Sodaville needs to setup the IO_APIC ids as the boot loader leaves
them uninitialized. Split out the setter function so it can be called
unconditionally from the sodaville board code.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@...utronix.de>
Cc: Yinghai Lu <yinghai@...nel.org>
LKML-Reference: <20101126165020.GA26361@....tglx.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
arch/x86/include/asm/io_apic.h | 1 +
arch/x86/kernel/apic/io_apic.c | 28 ++++++++++++++++------------
2 files changed, 17 insertions(+), 12 deletions(-)
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 240a0a5..d7d46cb 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -169,6 +169,7 @@ extern void mask_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
extern int restore_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
extern void setup_ioapic_ids_from_mpc(void);
+extern void setup_ioapic_ids_from_mpc_nocheck(void);
struct mp_ioapic_gsi{
u32 gsi_base;
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index ce3c6fb..4f026a6 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1934,8 +1934,7 @@ void disable_IO_APIC(void)
*
* by Matt Domsch <Matt_Domsch@...l.com> Tue Dec 21 12:25:05 CST 1999
*/
-
-void __init setup_ioapic_ids_from_mpc(void)
+void __init setup_ioapic_ids_from_mpc_nocheck(void)
{
union IO_APIC_reg_00 reg_00;
physid_mask_t phys_id_present_map;
@@ -1944,15 +1943,6 @@ void __init setup_ioapic_ids_from_mpc(void)
unsigned char old_id;
unsigned long flags;
- if (acpi_ioapic)
- return;
- /*
- * Don't check I/O APIC IDs for xAPIC systems. They have
- * no meaning without the serial APIC bus.
- */
- if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
- || APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
- return;
/*
* This is broken; anything with a real cpu count has to
* circumvent this idiocy regardless.
@@ -2006,7 +1996,6 @@ void __init setup_ioapic_ids_from_mpc(void)
physids_or(phys_id_present_map, phys_id_present_map, tmp);
}
-
/*
* We need to adjust the IRQ routing table
* if the ID changed.
@@ -2042,6 +2031,21 @@ void __init setup_ioapic_ids_from_mpc(void)
apic_printk(APIC_VERBOSE, " ok.\n");
}
}
+
+void __init setup_ioapic_ids_from_mpc(void)
+{
+
+ if (acpi_ioapic)
+ return;
+ /*
+ * Don't check I/O APIC IDs for xAPIC systems. They have
+ * no meaning without the serial APIC bus.
+ */
+ if (!(boot_cpu_data.x86_vendor == X86_VENDOR_INTEL)
+ || APIC_XAPIC(apic_version[boot_cpu_physical_apicid]))
+ return;
+ setup_ioapic_ids_from_mpc_nocheck();
+}
#endif
int no_timer_check __initdata;
--
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