From b3e6b5dfcf0974069a8ddcce7dd071120d20d79c Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Tue, 5 Apr 2011 14:27:11 +1000
Subject: powerpc: More work to support HV exceptions

Rework exception macros a bit to split offset from vector and add
some basic support for HDEC, HDSI, HISI and a few more.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/exception-64s.h  | 37 ++++++++++++++++++++-----------
 arch/powerpc/include/asm/feature-fixups.h |  2 +-
 2 files changed, 25 insertions(+), 14 deletions(-)

(limited to 'arch/powerpc/include')

diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 1d98e05be51..fb5b0af30fc 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -150,28 +150,27 @@
 /*
  * Exception vectors.
  */
-#define STD_EXCEPTION_PSERIES(n, label)			\
-	. = n;						\
+#define STD_EXCEPTION_PSERIES(loc, vec, label)		\
+	. = loc;					\
 	.globl label##_pSeries;				\
 label##_pSeries:					\
 	HMT_MEDIUM;					\
-	DO_KVM	n;					\
+	DO_KVM	vec;					\
 	mtspr	SPRN_SPRG_SCRATCH0,r13;		/* save r13 */	\
 	EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_STD)
 
-#define HSTD_EXCEPTION_PSERIES(n, label)		\
-	. = n;						\
-	.globl label##_pSeries;				\
-label##_pSeries:					\
+#define STD_EXCEPTION_HV(loc, vec, label)		\
+	. = loc;					\
+	.globl label##_hv;				\
+label##_hv:						\
 	HMT_MEDIUM;					\
-	DO_KVM	n;					\
+	DO_KVM	vec;					\
 	mtspr	SPRN_SPRG_HSCRATCH0,r13;/* save r13 */	\
 	EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, label##_common, EXC_HV)
 
-
-#define __MASKABLE_EXCEPTION_PSERIES(n, label, h)			\
+#define __MASKABLE_EXCEPTION_PSERIES(vec, label, h)			\
 	HMT_MEDIUM;							\
-	DO_KVM	n;							\
+	DO_KVM	vec;							\
 	mtspr	SPRN_SPRG_##h##SCRATCH0,r13;    /* save r13 */		\
 	GET_PACA(r13);							\
 	std	r9,PACA_EXGEN+EX_R9(r13);	/* save r9, r10 */	\
@@ -193,8 +192,20 @@ label##_pSeries:					\
 	mtspr	SPRN_##h##SRR1,r10;					\
 	h##rfid;							\
 	b	.	/* prevent speculative execution */
-#define MASKABLE_EXCEPTION_PSERIES(n, label, h)				\
-	__MASKABLE_EXCEPTION_PSERIES(n, label, h)
+#define _MASKABLE_EXCEPTION_PSERIES(vec, label, h)			\
+	__MASKABLE_EXCEPTION_PSERIES(vec, label, h)
+
+#define MASKABLE_EXCEPTION_PSERIES(loc, vec, label)			\
+	. = loc;							\
+	.globl label##_pSeries;						\
+label##_pSeries:							\
+	_MASKABLE_EXCEPTION_PSERIES(vec, label, EXC_STD)
+
+#define MASKABLE_EXCEPTION_HV(loc, vec, label)				\
+	. = loc;							\
+	.globl label##_hv;						\
+label##_hv:								\
+	_MASKABLE_EXCEPTION_PSERIES(vec, label, EXC_HV)
 
 #ifdef CONFIG_PPC_ISERIES
 #define DISABLE_INTS				\
diff --git a/arch/powerpc/include/asm/feature-fixups.h b/arch/powerpc/include/asm/feature-fixups.h
index 921a8470e18..bdc0d6877bc 100644
--- a/arch/powerpc/include/asm/feature-fixups.h
+++ b/arch/powerpc/include/asm/feature-fixups.h
@@ -49,7 +49,7 @@ label##5:							\
 	FTR_ENTRY_OFFSET label##2b-label##5b;			\
 	FTR_ENTRY_OFFSET label##3b-label##5b;			\
 	FTR_ENTRY_OFFSET label##4b-label##5b;			\
-	.ifgt (label##4b-label##3b)-(label##2b-label##1b);	\
+	.ifgt (label##4b- label##3b)-(label##2b- label##1b);	\
 	.error "Feature section else case larger than body";	\
 	.endif;							\
 	.popsection;
-- 
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