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From: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
To: linuxppc-dev list <Linuxppc-dev@ozlabs.org>
Cc: Torez Smith <torez@us.ibm.com>
Subject: [RFC: PATCH 10/13] powerpc/476: Add isync to the top of all exception handlers for DD1.1 core
Date: Mon, 1 Mar 2010 16:14:05 -0300	[thread overview]
Message-ID: <20100301191405.20987.36207.sendpatchset@norville.austin.ibm.com> (raw)
In-Reply-To: <20100301191255.20987.84668.sendpatchset@norville.austin.ibm.com>

powerpc/476: Add isync to the top of all exception handlers for DD1.1 core

From: Dave Kleikamp <shaggy@linux.vnet.ibm.com>

Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
---

 arch/powerpc/include/asm/asm-compat.h |    7 ++++++-
 arch/powerpc/kernel/head_booke.h      |    3 ++-
 2 files changed, 8 insertions(+), 2 deletions(-)


diff --git a/arch/powerpc/include/asm/asm-compat.h b/arch/powerpc/include/asm/asm-compat.h
index bee05ec..1890fbf 100644
--- a/arch/powerpc/include/asm/asm-compat.h
+++ b/arch/powerpc/include/asm/asm-compat.h
@@ -70,8 +70,13 @@
 	BEGIN_FTR_SECTION;			\
 		lwsync;				\
 	END_FTR_SECTION_IFSET(CPU_FTR_476_DD1_1)
-#else
+#define PPC476_ERR_ISYNC()			\
+	BEGIN_FTR_SECTION;			\
+		isync;				\
+	END_FTR_SECTION_IFSET(CPU_FTR_476_DD1_1)
+#else	/* ! CONFIG_PPC_47x */
 #define PPC476_ERR_DCBx()
+#define PPC476_ERR_ISYNC()
 #endif /* CONFIG_PPC_47x */
 
 #endif
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h
index 80d47f4..6b1ad61 100644
--- a/arch/powerpc/kernel/head_booke.h
+++ b/arch/powerpc/kernel/head_booke.h
@@ -165,7 +165,8 @@
  */
 #define	START_EXCEPTION(label)						     \
         .align 5;              						     \
-label:
+label:									     \
+	PPC476_ERR_ISYNC()
 
 #define FINISH_EXCEPTION(func)					\
 	bl	transfer_to_handler_full;			\

-- 
Dave Kleikamp
IBM Linux Technology Center

  parent reply	other threads:[~2010-03-01 19:14 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-01 19:12 [RFC: PATCH 00/13] powerpc/47x: Support for 476 core Dave Kleikamp
2010-03-01 12:13 ` [RFC: PATCH 04/13] powerpc/476: add machine check handler for 47x core Dave Kleikamp
2010-03-01 21:08   ` Olof Johansson
2010-03-01 23:22     ` Dave Kleikamp
2010-03-01 19:13 ` [RFC: PATCH 01/13] powerpc/booke: Add Stack Marking support to Booke Exception Prolog Dave Kleikamp
2010-03-02 14:50   ` Kumar Gala
2010-03-02 15:09     ` Dave Kleikamp
2010-03-01 19:13 ` [RFC: PATCH 02/13] powerpc/44x: break out cpu init code into stand-alone function Dave Kleikamp
2010-03-01 19:13 ` [RFC: PATCH 03/13] powerpc/47x: Base ppc476 support Dave Kleikamp
2010-03-01 20:19   ` Josh Boyer
2010-03-01 23:11     ` Dave Kleikamp
2010-03-02  0:47       ` Josh Boyer
2010-03-01 19:13 ` [RFC: PATCH 05/13] powerpc/476: Add isync after loading mmu and debug spr's Dave Kleikamp
2010-03-01 19:13 ` [RFC: PATCH 07/13] powerpc/47x: defconfig for 476 on the iss 4xx simulator Dave Kleikamp
2010-03-01 19:13 ` [RFC: PATCH 08/13] powerpc/476: define specific cpu table entry for DD1 and DD1.1 cores Dave Kleikamp
2010-03-01 20:24   ` Josh Boyer
2010-03-01 23:43     ` Dave Kleikamp
2010-03-04 17:06   ` Hollis Blanchard
2010-03-05  9:15     ` Kumar Gala
2010-03-05 13:18       ` Dave Kleikamp
2010-03-01 19:13 ` [RFC: PATCH 09/13] powerpc/476: Workaround for dcbf/dcbz workaround on DD1 Dave Kleikamp
2010-03-01 19:14 ` Dave Kleikamp [this message]
2010-03-01 19:14 ` [RFC: PATCH 11/13] powerpc/476: Software workaround to fix dcr read/write sequencing Dave Kleikamp
2010-03-01 19:14 ` [RFC: PATCH 12/13] powerpc/476: Workaround for DD1.1: Issue lwsync after mtpid Dave Kleikamp
2010-03-01 19:14 ` [RFC: PATCH 13/13] powerpc/476: Add dci instruction to async interrupt handlers on DD1 core Dave Kleikamp
2010-03-01 19:16 ` [RFC: PATCH 06/13] powerpc/4xx: Simple platform for the ISS 4xx simulator Dave Kleikamp
2010-03-01 20:29   ` Josh Boyer
2010-03-01 23:33     ` Dave Kleikamp

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