linux-kernel - [PATCH] fix IBM Summit based systems' phys_cpu_present

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Message-ID: <20080725020609.GB11800@us.ibm.com>
Date:	Thu, 24 Jul 2008 19:06:09 -0700
From:	Chris McDermott <lcm@...ux.vnet.ibm.com>
To:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] fix IBM Summit based systems' phys_cpu_present_map on
	32-bit kernels


x86 kernels on IBM Summit based systems will only online 1 CPU because the
phys_cpu_present_map is not set up correctly. Patch below applied to 
2.6.26-git10.

thanks,

Chris McDermott <lcm@...ux.vnet.ibm.com>


Signed-off-by: Chris McDermott <lcm@...ux.vnet.ibm.com>
Tested-by: Tim Pepper <lnxninga@...ux.vnet.ibm.com>


--- a/include/asm-x86/mach-summit/mach_apic.h	2008-07-24 18:06:39.000000000 -0700
+++ b/include/asm-x86/mach-summit/mach_apic.h	2008-07-24 18:09:29.000000000 -0700
@@ -122,7 +122,7 @@ static inline physid_mask_t ioapic_phys_
 
 static inline physid_mask_t apicid_to_cpu_present(int apicid)
 {
-	return physid_mask_of_physid(0);
+	return physid_mask_of_physid(apicid);
 }
 
 static inline void setup_portio_remap(void)
--
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