linux-kernel - [tip:x86/numa] x86: Implement x86_32_early_logical_apicid() for bigsmp

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Message-ID: <tip-12bf24a47c1a095233cc8a8b863b509a0d8e0f2c@git.kernel.org>
Date:	Fri, 28 Jan 2011 14:40:13 GMT
From:	tip-bot for Tejun Heo <tj@...nel.org>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, hpa@...or.com, mingo@...hat.com,
	tj@...nel.org, tglx@...utronix.de, mingo@...e.hu
Subject: [tip:x86/numa] x86: Implement x86_32_early_logical_apicid() for bigsmp_32

Commit-ID:  12bf24a47c1a095233cc8a8b863b509a0d8e0f2c
Gitweb:     http://git.kernel.org/tip/12bf24a47c1a095233cc8a8b863b509a0d8e0f2c
Author:     Tejun Heo <tj@...nel.org>
AuthorDate: Sun, 23 Jan 2011 14:37:35 +0100
Committer:  Ingo Molnar <mingo@...e.hu>
CommitDate: Fri, 28 Jan 2011 14:54:07 +0100

x86: Implement x86_32_early_logical_apicid() for bigsmp_32

Signed-off-by: Tejun Heo <tj@...nel.org>
Cc: eric.dumazet@...il.com
Cc: yinghai@...nel.org
Cc: brgerst@...il.com
Cc: gorcunov@...il.com
Cc: penberg@...nel.org
Cc: shaohui.zheng@...el.com
Cc: rientjes@...gle.com
LKML-Reference: <1295789862-25482-10-git-send-email-tj@...nel.org>
Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/kernel/apic/bigsmp_32.c |    8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index dd32a9b..bc7ed04 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -45,6 +45,12 @@ static unsigned long bigsmp_check_apicid_present(int bit)
 	return 1;
 }
 
+static int bigsmp_early_logical_apicid(int cpu)
+{
+	/* on bigsmp, logical apicid is the same as physical */
+	return early_per_cpu(x86_cpu_to_apicid, cpu);
+}
+
 static inline unsigned long calculate_ldr(int cpu)
 {
 	unsigned long val, id;
@@ -252,5 +258,5 @@ struct apic apic_bigsmp = {
 	.wait_icr_idle			= native_apic_wait_icr_idle,
 	.safe_wait_icr_idle		= native_safe_apic_wait_icr_idle,
 
-	.x86_32_early_logical_apicid	= noop_x86_32_early_logical_apicid,
+	.x86_32_early_logical_apicid	= bigsmp_early_logical_apicid,
 };
--
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