linux-kernel - [PATCH 5/8] powerpc: use new macro for .data.cacheline

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Message-Id: <1241135777-9462-6-git-send-email-tabbott@mit.edu>
Date:	Thu, 30 Apr 2009 19:56:14 -0400
From:	Tim Abbott <tabbott@....EDU>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Anders Kaseorg <andersk@....edu>,
	Waseem Daher <wdaher@....edu>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Jeff Arnold <jbarnold@....edu>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>, linuxppc-dev@...abs.org,
	Tim Abbott <tabbott@....edu>
Subject: [PATCH 5/8] powerpc: use new macro for .data.cacheline_aligned section.

.data.cacheline_aligned should not need a separate output section;
this change moves it into the .data section.

Since there isn't an ALIGN() directive before the
.data.cacheline_aligned scetion in the current linker script, I'd like
an ack from one of the powerpc maintainers that L1_CACHE_BYTES is the
correct alignment here.

Signed-off-by: Tim Abbott <tabbott@....edu>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: linuxppc-dev@...abs.org
---
 arch/powerpc/kernel/vmlinux.lds.S |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 4223892..e769717 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -223,6 +223,7 @@ SECTIONS
 	.data : AT(ADDR(.data) - LOAD_OFFSET) {
 		PAGE_ALIGNED_DATA
 		NOSAVE_DATA
+		CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
 		DATA_DATA
 #ifdef CONFIG_PPC32
 		*(.sdata)
@@ -260,10 +261,6 @@ SECTIONS
 		*(.data.init_task)
 	}
 
-	.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET) {
-		*(.data.cacheline_aligned)
-	}
-
 	. = ALIGN(L1_CACHE_BYTES);
 	.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET) {
 		*(.data.read_mostly)
-- 
1.6.2.1

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