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From: Zwane Mwaikambo <zwane@linuxpower.ca>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: James Bottomley <James.Bottomley@SteelEye.com>,
	Martin Bligh <mbligh@aracnet.com>,
	Linus Torvalds <torvalds@transmeta.com>
Subject: [PATCH][RFT] noirqbalance still doesn't do anything
Date: Fri, 7 Mar 2003 02:29:40 -0500 (EST)	[thread overview]
Message-ID: <Pine.LNX.4.50.0303070224190.18716-100000@montezuma.mastecende.com> (raw)

I didn't get a response to my other patch to do this so i'm guessing that 
people want a simpler patch(??) This one simply sets TARGET_CPUS to 
cpu_callout_map instead of cpu_online_map so that when we finally do boot 
we actually use the other cpus for servicing interrupts.

Only tested on 2way AMD/SMP booted with noirqbalance, interrupts get 
distributed via apic bus arbitration.

	Zwane

Index: linux-2.5.62-numaq//include/asm-i386/mach-bigsmp/mach_apic.h
===================================================================
RCS file: /build/cvsroot/linux-2.5.62/include/asm-i386/mach-bigsmp/mach_apic.h,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 mach_apic.h
--- linux-2.5.62-numaq//include/asm-i386/mach-bigsmp/mach_apic.h	18 Feb 2003 00:16:00 -0000	1.1.1.1
+++ linux-2.5.62-numaq//include/asm-i386/mach-bigsmp/mach_apic.h	7 Mar 2003 05:34:49 -0000
@@ -19,7 +19,7 @@
 }
 
 #define APIC_DFR_VALUE	(APIC_DFR_CLUSTER)
-#define TARGET_CPUS	((cpu_online_map < 0xf)?cpu_online_map:0xf)
+#define TARGET_CPUS	((cpu_callout_map < 0xf)?cpu_callout_map:0xf)
 
 #define INT_DELIVERY_MODE dest_LowestPrio
 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */
Index: linux-2.5.62-numaq//include/asm-i386/mach-default/mach_apic.h
===================================================================
RCS file: /build/cvsroot/linux-2.5.62/include/asm-i386/mach-default/mach_apic.h,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 mach_apic.h
--- linux-2.5.62-numaq//include/asm-i386/mach-default/mach_apic.h	18 Feb 2003 00:15:59 -0000	1.1.1.1
+++ linux-2.5.62-numaq//include/asm-i386/mach-default/mach_apic.h	7 Mar 2003 05:33:20 -0000
@@ -4,7 +4,7 @@
 #define APIC_DFR_VALUE	(APIC_DFR_FLAT)
 
 #ifdef CONFIG_SMP
- #define TARGET_CPUS (cpu_online_map)
+ #define TARGET_CPUS (cpu_callout_map)
 #else
  #define TARGET_CPUS 0x01
 #endif
Index: linux-2.5.62-numaq//include/asm-i386/mach-summit/mach_apic.h
===================================================================
RCS file: /build/cvsroot/linux-2.5.62/include/asm-i386/mach-summit/mach_apic.h,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 mach_apic.h
--- linux-2.5.62-numaq//include/asm-i386/mach-summit/mach_apic.h	18 Feb 2003 00:15:59 -0000	1.1.1.1
+++ linux-2.5.62-numaq//include/asm-i386/mach-summit/mach_apic.h	7 Mar 2003 05:36:40 -0000
@@ -13,7 +13,7 @@
 		((phys_apic) & XAPIC_DEST_CLUSTER_MASK) )
 
 #define APIC_DFR_VALUE	(x86_summit ? APIC_DFR_CLUSTER : APIC_DFR_FLAT)
-#define TARGET_CPUS	(x86_summit ? XAPIC_DEST_CPUS_MASK : cpu_online_map)
+#define TARGET_CPUS	(x86_summit ? XAPIC_DEST_CPUS_MASK : cpu_callout_map)
 
 #define INT_DELIVERY_MODE (x86_summit ? dest_Fixed : dest_LowestPrio)
 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */

-- 
function.linuxpower.ca

             reply	other threads:[~2003-03-07  7:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-03-07  7:29 Zwane Mwaikambo [this message]
2003-03-07  8:02 ` [PATCH][RFT] noirqbalance still doesn't do anything Martin J. Bligh
2003-03-07  8:14   ` Zwane Mwaikambo

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