Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

arch/powerpc/Makefile

@@ -61,15 +61,17 @@ endif
 LDFLAGS_vmlinux	:= -Bstatic
 
 # The -Iarch/$(ARCH)/include is temporary while we are merging
-CPPFLAGS	+= -Iarch/$(ARCH) -Iarch/$(ARCH)/include
-AFLAGS		+= -Iarch/$(ARCH)
-CFLAGS		+= -Iarch/$(ARCH) -msoft-float -pipe
+CPPFLAGS-$(CONFIG_PPC32) := -Iarch/$(ARCH) -Iarch/$(ARCH)/include
+AFLAGS-$(CONFIG_PPC32)	:= -Iarch/$(ARCH)
 CFLAGS-$(CONFIG_PPC64)	:= -mminimal-toc -mtraceback=none  -mcall-aixdesc
-CFLAGS-$(CONFIG_PPC32)	:= -ffixed-r2 -mmultiple
-CFLAGS		+= $(CFLAGS-y)
+CFLAGS-$(CONFIG_PPC32)	:= -Iarch/$(ARCH) -ffixed-r2 -mmultiple
+CPPFLAGS	+= $(CPPFLAGS-y)
+AFLAGS		+= $(AFLAGS-y)
+CFLAGS		+= -msoft-float -pipe $(CFLAGS-y)
 CPP		= $(CC) -E $(CFLAGS)
 # Temporary hack until we have migrated to asm-powerpc
-LINUXINCLUDE    += -Iarch/$(ARCH)/include
+LINUXINCLUDE-$(CONFIG_PPC32)	:= -Iarch/$(ARCH)/include
+LINUXINCLUDE    += $(LINUXINCLUDE-y)
 
 CHECKFLAGS	+= -m$(SZ) -D__powerpc__ -D__powerpc$(SZ)__
 
@@ -173,11 +175,13 @@ archclean:
 
 archprepare: checkbin
 
+ifeq ($(CONFIG_PPC32),y)
 # Temporary hack until we have migrated to asm-powerpc
 include/asm: arch/$(ARCH)/include/asm
 arch/$(ARCH)/include/asm: FORCE
 	$(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
 	$(Q)ln -fsn $(srctree)/include/asm-$(OLDARCH) arch/$(ARCH)/include/asm
+endif
 
 # Use the file '.tmp_gas_check' for binutils tests, as gas won't output
 # to stdout and these checks are run even on install targets.

arch/powerpc/mm/hugetlbpage.c

@@ -295,7 +295,7 @@ int prepare_hugepage_range(unsigned long addr, unsigned long len)
 	if (addr < 0x100000000UL)
 		err = open_low_hpage_areas(current->mm,
 					  LOW_ESID_MASK(addr, len));
-	if ((addr + len) >= 0x100000000UL)
+	if ((addr + len) > 0x100000000UL)
 		err = open_high_hpage_areas(current->mm,
 					    HTLB_AREA_MASK(addr, len));
 	if (err) {

arch/powerpc/platforms/iseries/iommu.c

@@ -3,7 +3,7 @@
  *
  * Rewrite, cleanup:
  *
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
  *
  * Dynamic DMA mapping support, iSeries-specific parts.
  *

arch/powerpc/platforms/pseries/iommu.c

@@ -5,7 +5,7 @@
  *
  * Rewrite, cleanup: 
  *
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
  *
  * Dynamic DMA mapping support, pSeries-specific parts, both SMP and LPAR.
  *

arch/powerpc/sysdev/dart.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

arch/powerpc/sysdev/u3_iommu.c

@@ -1,11 +1,11 @@
 /*
  * arch/powerpc/sysdev/u3_iommu.c
  *
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
  *
  * Based on pSeries_iommu.c:
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
  *
  * Dynamic DMA mapping support, Apple U3 & IBM CPC925 "DART" iommu.
  *

include/asm-powerpc/iommu.h

@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
  * Rewrite, cleanup:
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
  * 
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by

include/asm-powerpc/page_64.h

@@ -103,8 +103,9 @@ extern unsigned int HPAGE_SHIFT;
 #define HTLB_AREA_SIZE		(1UL << HTLB_AREA_SHIFT)
 #define GET_HTLB_AREA(x)	((x) >> HTLB_AREA_SHIFT)
 
-#define LOW_ESID_MASK(addr, len)    (((1U << (GET_ESID(addr+len-1)+1)) \
-		                      - (1U << GET_ESID(addr))) & 0xffff)
+#define LOW_ESID_MASK(addr, len)    \
+	(((1U << (GET_ESID(min((addr)+(len)-1, 0x100000000UL))+1)) \
+	  - (1U << GET_ESID(min((addr), 0x100000000UL)))) & 0xffff)
 #define HTLB_AREA_MASK(addr, len)   (((1U << (GET_HTLB_AREA(addr+len-1)+1)) \
 		                      - (1U << GET_HTLB_AREA(addr))) & 0xffff)
 
@@ -113,17 +114,21 @@ extern unsigned int HPAGE_SHIFT;
 #define ARCH_HAS_SETCLEAR_HUGE_PTE
 
 #define touches_hugepage_low_range(mm, addr, len) \
-	(LOW_ESID_MASK((addr), (len)) & (mm)->context.low_htlb_areas)
+	(((addr) < 0x100000000UL) \
+	 && (LOW_ESID_MASK((addr), (len)) & (mm)->context.low_htlb_areas))
 #define touches_hugepage_high_range(mm, addr, len) \
-	(HTLB_AREA_MASK((addr), (len)) & (mm)->context.high_htlb_areas)
+	((((addr) + (len)) > 0x100000000UL) \
+	  && (HTLB_AREA_MASK((addr), (len)) & (mm)->context.high_htlb_areas))
 
 #define __within_hugepage_low_range(addr, len, segmask) \
-	((LOW_ESID_MASK((addr), (len)) | (segmask)) == (segmask))
+	( (((addr)+(len)) <= 0x100000000UL) \
+	  && ((LOW_ESID_MASK((addr), (len)) | (segmask)) == (segmask)))
 #define within_hugepage_low_range(addr, len) \
 	__within_hugepage_low_range((addr), (len), \
 				    current->mm->context.low_htlb_areas)
 #define __within_hugepage_high_range(addr, len, zonemask) \
-	((HTLB_AREA_MASK((addr), (len)) | (zonemask)) == (zonemask))
+	( ((addr) >= 0x100000000UL) \
+	  && ((HTLB_AREA_MASK((addr), (len)) | (zonemask)) == (zonemask)))
 #define within_hugepage_high_range(addr, len) \
 	__within_hugepage_high_range((addr), (len), \
 				    current->mm->context.high_htlb_areas)

include/asm-powerpc/tce.h

@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen, IBM Corporation
  * Rewrite, cleanup:
- * Copyright (C) 2004 Olof Johansson <olof@austin.ibm.com>, IBM Corporation
+ * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by