linux-kernel - [PATCH 10/10] x86, ioapic: only print mapping for ioapic in right place

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Date:	Fri,  6 Aug 2010 19:15:43 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>
Subject: [PATCH 10/10] x86, ioapic: only print mapping for ioapic in right place

when mapping does happen.

And only map ioapic address one time when mp_register_ioapic() is called.

Signed-off-by: Yinghai Lu <yinghai@...nel.org>
---
 arch/x86/kernel/apic/io_apic.c |   11 +++++++----
 1 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 4dc0084..badf10e 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -4192,11 +4192,11 @@ fake_ioapic_page:
 #endif
 			ioapic_phys = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
 			ioapic_phys = __pa(ioapic_phys);
+			set_fixmap_nocache(idx, ioapic_phys);
+			apic_printk(APIC_VERBOSE, "mapped IOAPIC to %08lx (%08lx)\n",
+				__fix_to_virt(idx) + (ioapic_phys & ~PAGE_MASK),
+				ioapic_phys);
 		}
-		set_fixmap_nocache(idx, ioapic_phys);
-		apic_printk(APIC_VERBOSE, "mapped IOAPIC to %08lx (%08lx)\n",
-			__fix_to_virt(idx) + (ioapic_phys & ~PAGE_MASK),
-			ioapic_phys);
 		idx++;
 
 		ioapic_res->start = ioapic_phys;
@@ -4278,6 +4278,9 @@ void __init mp_register_ioapic(int id, u32 address, u32 gsi_base)
 	mp_ioapics[idx].apicaddr = address;
 
 	set_fixmap_nocache(FIX_IO_APIC_BASE_0 + idx, address);
+	apic_printk(APIC_VERBOSE, "mapped IOAPIC to %08lx (%08x)\n",
+			__fix_to_virt(FIX_IO_APIC_BASE_0 + idx) + (address & ~PAGE_MASK),
+			address);
 	mp_ioapics[idx].apicid = io_apic_unique_id(id);
 	mp_ioapics[idx].apicver = io_apic_get_version(idx);
 
-- 
1.6.4.2

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