From dd29c7277126db6884df42d41f2fbe2ebc10041e Mon Sep 17 00:00:00 2001
From: Lennert Buytenhek <buytenh@wantstofly.org>
Date: Fri, 13 Jan 2006 20:51:43 +0000
Subject: [ARM] 3257/1: ixp2000: map in scratch and sram

Patch from Lennert Buytenhek

For the ixp2000 netdev driver, we need to map in a chunk of SRAM (to
store the transmit and receive descriptors) and the scratch get/put
area (so that we can use the scratchpad rings in the cpu for managing
the descriptors.)  These are the final two mappings needed for the
netdev driver and the last missing piece for the driver in mainline
to work.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-ixp2000/core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'arch/arm')

diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index 6851abaf552..cfd5bef3190 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -105,6 +105,16 @@ static struct map_desc ixp2000_io_desc[] __initdata = {
 		.pfn		= __phys_to_pfn(IXP2000_MSF_PHYS_BASE),
 		.length		= IXP2000_MSF_SIZE,
 		.type		= MT_IXP2000_DEVICE,
+	}, {
+		.virtual	= IXP2000_SCRATCH_RING_VIRT_BASE,
+		.pfn		= __phys_to_pfn(IXP2000_SCRATCH_RING_PHYS_BASE),
+		.length		= IXP2000_SCRATCH_RING_SIZE,
+		.type		= MT_IXP2000_DEVICE,
+	}, {
+		.virtual	= IXP2000_SRAM0_VIRT_BASE,
+		.pfn		= __phys_to_pfn(IXP2000_SRAM0_PHYS_BASE),
+		.length		= IXP2000_SRAM0_SIZE,
+		.type		= MT_IXP2000_DEVICE,
 	}, {
 		.virtual	= IXP2000_PCI_IO_VIRT_BASE,
 		.pfn		= __phys_to_pfn(IXP2000_PCI_IO_PHYS_BASE),
-- 
cgit v1.2.3


From 2df96b34aae08e0aa688ef7a8444febb8ec44172 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Fri, 13 Jan 2006 20:51:46 +0000
Subject: [ARM] 3259/1: remove phys_ram from struct machine_desc (part 1)

Patch from Nicolas Pitre

This field is redundent since it must be equal to PHYS_OFFSET anyway.

First, let's  use PHYS_OFFSET directly instead.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/head.S | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 1e985f2cd70..1aca1775b28 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -251,12 +251,11 @@ __turn_mmu_on:
  * r10 = procinfo
  *
  * Returns:
- *  r0, r3, r5, r6, r7 corrupted
+ *  r0, r3, r6, r7 corrupted
  *  r4 = physical page table address
  */
 	.type	__create_page_tables, %function
 __create_page_tables:
-	ldr	r5, [r8, #MACHINFO_PHYSRAM]	@ physram
 	pgtbl	r4				@ page table address
 
 	/*
@@ -303,7 +302,7 @@ __create_page_tables:
 	 * Then map first 1MB of ram in case it contains our boot params.
 	 */
 	add	r0, r4, #PAGE_OFFSET >> 18
-	orr	r6, r5, r7
+	orr	r6, r7, #PHYS_OFFSET
 	str	r6, [r0]
 
 #ifdef CONFIG_XIP_KERNEL
@@ -311,7 +310,7 @@ __create_page_tables:
 	 * Map some ram to cover our .data and .bss areas.
 	 * Mapping 3MB should be plenty.
 	 */
-	sub	r3, r4, r5
+	sub	r3, r4, #PHYS_OFFSET
 	mov	r3, r3, lsr #20
 	add	r0, r0, r3, lsl #2
 	add	r6, r6, r3, lsl #20
-- 
cgit v1.2.3


From 946d4935fc61e1479f8c057d58c64110bb43d3b0 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Fri, 13 Jan 2006 20:51:52 +0000
Subject: [ARM] 3260/1: remove phys_ram from struct machine_desc (part 2)

Patch from Nicolas Pitre

This field is redundent since it must be equal to PHYS_OFFSET anyway.

Now that no code uses it anymore, mark it deprecated and remove all
initializations from the tree.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-aaec2000/aaed2000.c        | 1 -
 arch/arm/mach-at91rm9200/board-csb337.c  | 1 -
 arch/arm/mach-at91rm9200/board-csb637.c  | 1 -
 arch/arm/mach-at91rm9200/board-dk.c      | 1 -
 arch/arm/mach-at91rm9200/board-ek.c      | 1 -
 arch/arm/mach-clps711x/autcpu12.c        | 1 -
 arch/arm/mach-clps711x/cdb89712.c        | 1 -
 arch/arm/mach-clps711x/ceiva.c           | 1 -
 arch/arm/mach-clps711x/clep7312.c        | 1 -
 arch/arm/mach-clps711x/edb7211-arch.c    | 1 -
 arch/arm/mach-clps711x/fortunet.c        | 1 -
 arch/arm/mach-clps711x/p720t.c           | 1 -
 arch/arm/mach-clps7500/core.c            | 1 -
 arch/arm/mach-ebsa110/core.c             | 1 -
 arch/arm/mach-footbridge/cats-hw.c       | 1 -
 arch/arm/mach-footbridge/co285.c         | 1 -
 arch/arm/mach-footbridge/ebsa285.c       | 1 -
 arch/arm/mach-footbridge/netwinder-hw.c  | 1 -
 arch/arm/mach-footbridge/personal.c      | 1 -
 arch/arm/mach-h720x/h7201-eval.c         | 1 -
 arch/arm/mach-h720x/h7202-eval.c         | 1 -
 arch/arm/mach-imx/mx1ads.c               | 1 -
 arch/arm/mach-integrator/integrator_ap.c | 1 -
 arch/arm/mach-integrator/integrator_cp.c | 1 -
 arch/arm/mach-iop3xx/iop321-setup.c      | 2 --
 arch/arm/mach-iop3xx/iop331-setup.c      | 2 --
 arch/arm/mach-ixp2000/enp2611.c          | 1 -
 arch/arm/mach-ixp2000/ixdp2400.c         | 1 -
 arch/arm/mach-ixp2000/ixdp2800.c         | 1 -
 arch/arm/mach-ixp2000/ixdp2x01.c         | 2 --
 arch/arm/mach-ixp4xx/coyote-setup.c      | 2 --
 arch/arm/mach-ixp4xx/gtwx5715-setup.c    | 1 -
 arch/arm/mach-ixp4xx/ixdp425-setup.c     | 4 ----
 arch/arm/mach-ixp4xx/nas100d-setup.c     | 1 -
 arch/arm/mach-ixp4xx/nslu2-setup.c       | 1 -
 arch/arm/mach-l7200/core.c               | 1 -
 arch/arm/mach-lh7a40x/arch-kev7a400.c    | 1 -
 arch/arm/mach-lh7a40x/arch-lpd7a40x.c    | 2 --
 arch/arm/mach-omap1/board-generic.c      | 1 -
 arch/arm/mach-omap1/board-h2.c           | 1 -
 arch/arm/mach-omap1/board-h3.c           | 1 -
 arch/arm/mach-omap1/board-innovator.c    | 1 -
 arch/arm/mach-omap1/board-netstar.c      | 1 -
 arch/arm/mach-omap1/board-osk.c          | 1 -
 arch/arm/mach-omap1/board-palmte.c       | 1 -
 arch/arm/mach-omap1/board-perseus2.c     | 1 -
 arch/arm/mach-omap1/board-voiceblue.c    | 1 -
 arch/arm/mach-omap2/board-generic.c      | 1 -
 arch/arm/mach-omap2/board-h4.c           | 1 -
 arch/arm/mach-pxa/corgi.c                | 3 ---
 arch/arm/mach-pxa/idp.c                  | 1 -
 arch/arm/mach-pxa/lubbock.c              | 1 -
 arch/arm/mach-pxa/mainstone.c            | 1 -
 arch/arm/mach-pxa/poodle.c               | 1 -
 arch/arm/mach-pxa/spitz.c                | 3 ---
 arch/arm/mach-pxa/tosa.c                 | 1 -
 arch/arm/mach-realview/realview_eb.c     | 1 -
 arch/arm/mach-rpc/riscpc.c               | 1 -
 arch/arm/mach-s3c2410/mach-anubis.c      | 1 -
 arch/arm/mach-s3c2410/mach-bast.c        | 1 -
 arch/arm/mach-s3c2410/mach-h1940.c       | 1 -
 arch/arm/mach-s3c2410/mach-n30.c         | 1 -
 arch/arm/mach-s3c2410/mach-nexcoder.c    | 1 -
 arch/arm/mach-s3c2410/mach-otom.c        | 1 -
 arch/arm/mach-s3c2410/mach-rx3715.c      | 1 -
 arch/arm/mach-s3c2410/mach-smdk2410.c    | 1 -
 arch/arm/mach-s3c2410/mach-smdk2440.c    | 1 -
 arch/arm/mach-s3c2410/mach-vr1000.c      | 1 -
 arch/arm/mach-sa1100/assabet.c           | 1 -
 arch/arm/mach-sa1100/badge4.c            | 1 -
 arch/arm/mach-sa1100/cerf.c              | 1 -
 arch/arm/mach-sa1100/collie.c            | 1 -
 arch/arm/mach-sa1100/h3600.c             | 3 ---
 arch/arm/mach-sa1100/hackkit.c           | 1 -
 arch/arm/mach-sa1100/jornada720.c        | 1 -
 arch/arm/mach-sa1100/lart.c              | 1 -
 arch/arm/mach-sa1100/pleb.c              | 1 -
 arch/arm/mach-sa1100/shannon.c           | 1 -
 arch/arm/mach-sa1100/simpad.c            | 1 -
 arch/arm/mach-shark/core.c               | 1 -
 arch/arm/mach-versatile/versatile_ab.c   | 1 -
 arch/arm/mach-versatile/versatile_pb.c   | 1 -
 82 files changed, 96 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/mach-aaec2000/aaed2000.c b/arch/arm/mach-aaec2000/aaed2000.c
index f5ef6970229..dc5fa8e5ebe 100644
--- a/arch/arm/mach-aaec2000/aaed2000.c
+++ b/arch/arm/mach-aaec2000/aaed2000.c
@@ -90,7 +90,6 @@ static void __init aaed2000_map_io(void)
 
 MACHINE_START(AAED2000, "Agilent AAED-2000 Development Platform")
 	/* Maintainer: Nicolas Bellido Y Ortega */
-	.phys_ram	= 0xf0000000,
 	.phys_io	= PIO_BASE,
 	.io_pg_offst	= ((VIO_BASE) >> 18) & 0xfffc,
 	.map_io		= aaed2000_map_io,
diff --git a/arch/arm/mach-at91rm9200/board-csb337.c b/arch/arm/mach-at91rm9200/board-csb337.c
index 4aec834ee47..54022e58d50 100644
--- a/arch/arm/mach-at91rm9200/board-csb337.c
+++ b/arch/arm/mach-at91rm9200/board-csb337.c
@@ -132,7 +132,6 @@ static void __init csb337_board_init(void)
 
 MACHINE_START(CSB337, "Cogent CSB337")
 	/* Maintainer: Bill Gatliff */
-	.phys_ram	= AT91_SDRAM_BASE,
 	.phys_io	= AT91_BASE_SYS,
 	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 	.boot_params	= AT91_SDRAM_BASE + 0x100,
diff --git a/arch/arm/mach-at91rm9200/board-csb637.c b/arch/arm/mach-at91rm9200/board-csb637.c
index 23e4cc21481..8195f9d919e 100644
--- a/arch/arm/mach-at91rm9200/board-csb637.c
+++ b/arch/arm/mach-at91rm9200/board-csb637.c
@@ -105,7 +105,6 @@ static void __init csb637_board_init(void)
 
 MACHINE_START(CSB637, "Cogent CSB637")
 	/* Maintainer: Bill Gatliff */
-	.phys_ram	= AT91_SDRAM_BASE,
 	.phys_io	= AT91_BASE_SYS,
 	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 	.boot_params	= AT91_SDRAM_BASE + 0x100,
diff --git a/arch/arm/mach-at91rm9200/board-dk.c b/arch/arm/mach-at91rm9200/board-dk.c
index 8c747a31b95..8a783368366 100644
--- a/arch/arm/mach-at91rm9200/board-dk.c
+++ b/arch/arm/mach-at91rm9200/board-dk.c
@@ -127,7 +127,6 @@ static void __init dk_board_init(void)
 
 MACHINE_START(AT91RM9200DK, "Atmel AT91RM9200-DK")
 	/* Maintainer: SAN People/Atmel */
-	.phys_ram	= AT91_SDRAM_BASE,
 	.phys_io	= AT91_BASE_SYS,
 	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 	.boot_params	= AT91_SDRAM_BASE + 0x100,
diff --git a/arch/arm/mach-at91rm9200/board-ek.c b/arch/arm/mach-at91rm9200/board-ek.c
index d140645711b..fd0752eba89 100644
--- a/arch/arm/mach-at91rm9200/board-ek.c
+++ b/arch/arm/mach-at91rm9200/board-ek.c
@@ -120,7 +120,6 @@ static void __init ek_board_init(void)
 
 MACHINE_START(AT91RM9200EK, "Atmel AT91RM9200-EK")
 	/* Maintainer: SAN People/Atmel */
-	.phys_ram	= AT91_SDRAM_BASE,
 	.phys_io	= AT91_BASE_SYS,
 	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
 	.boot_params	= AT91_SDRAM_BASE + 0x100,
diff --git a/arch/arm/mach-clps711x/autcpu12.c b/arch/arm/mach-clps711x/autcpu12.c
index 43b9423d144..c13ca6c56ba 100644
--- a/arch/arm/mach-clps711x/autcpu12.c
+++ b/arch/arm/mach-clps711x/autcpu12.c
@@ -64,7 +64,6 @@ void __init autcpu12_map_io(void)
 
 MACHINE_START(AUTCPU12, "autronix autcpu12")
 	/* Maintainer: Thomas Gleixner */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0020000,
diff --git a/arch/arm/mach-clps711x/cdb89712.c b/arch/arm/mach-clps711x/cdb89712.c
index cba7be5a06c..831df007f6c 100644
--- a/arch/arm/mach-clps711x/cdb89712.c
+++ b/arch/arm/mach-clps711x/cdb89712.c
@@ -55,7 +55,6 @@ static void __init cdb89712_map_io(void)
 
 MACHINE_START(CDB89712, "Cirrus-CDB89712")
 	/* Maintainer: Ray Lehtiniemi */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-clps711x/ceiva.c b/arch/arm/mach-clps711x/ceiva.c
index 35d51a759b5..e2b2c5ac8a8 100644
--- a/arch/arm/mach-clps711x/ceiva.c
+++ b/arch/arm/mach-clps711x/ceiva.c
@@ -56,7 +56,6 @@ static void __init ceiva_map_io(void)
 
 MACHINE_START(CEIVA, "CEIVA/Polaroid Photo MAX Digital Picture Frame")
 	/* Maintainer: Rob Scott */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-clps711x/clep7312.c b/arch/arm/mach-clps711x/clep7312.c
index c83f3fd68fc..09fb57e4521 100644
--- a/arch/arm/mach-clps711x/clep7312.c
+++ b/arch/arm/mach-clps711x/clep7312.c
@@ -38,7 +38,6 @@ fixup_clep7312(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(CLEP7212, "Cirrus Logic 7212/7312")
 	/* Maintainer: Nobody */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-clps711x/edb7211-arch.c b/arch/arm/mach-clps711x/edb7211-arch.c
index 255c98b63e1..dc81cc68595 100644
--- a/arch/arm/mach-clps711x/edb7211-arch.c
+++ b/arch/arm/mach-clps711x/edb7211-arch.c
@@ -52,7 +52,6 @@ fixup_edb7211(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
 	/* Maintainer: Jon McClintock */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0020100,	/* 0xc0000000 - 0xc001ffff can be video RAM */
diff --git a/arch/arm/mach-clps711x/fortunet.c b/arch/arm/mach-clps711x/fortunet.c
index 3d88da0c287..ff26a85aa4b 100644
--- a/arch/arm/mach-clps711x/fortunet.c
+++ b/arch/arm/mach-clps711x/fortunet.c
@@ -78,7 +78,6 @@ fortunet_fixup(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(FORTUNET, "ARM-FortuNet")
 	/* Maintainer: FortuNet Inc. */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf0000000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000000,
diff --git a/arch/arm/mach-clps711x/p720t.c b/arch/arm/mach-clps711x/p720t.c
index a1acb945fb5..9ba45f4d5a7 100644
--- a/arch/arm/mach-clps711x/p720t.c
+++ b/arch/arm/mach-clps711x/p720t.c
@@ -90,7 +90,6 @@ static void __init p720t_map_io(void)
 
 MACHINE_START(P720T, "ARM-Prospector720T")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xff000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-clps7500/core.c b/arch/arm/mach-clps7500/core.c
index d869af0023f..5b12cab0e69 100644
--- a/arch/arm/mach-clps7500/core.c
+++ b/arch/arm/mach-clps7500/core.c
@@ -384,7 +384,6 @@ static void __init clps7500_init(void)
 
 MACHINE_START(CLPS7500, "CL-PS7500")
 	/* Maintainer: Philip Blundell */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0x03000000,
 	.io_pg_offst	= ((0xe0000000) >> 18) & 0xfffc,
 	.map_io		= clps7500_map_io,
diff --git a/arch/arm/mach-ebsa110/core.c b/arch/arm/mach-ebsa110/core.c
index ed4614983ad..6d620d8268c 100644
--- a/arch/arm/mach-ebsa110/core.c
+++ b/arch/arm/mach-ebsa110/core.c
@@ -284,7 +284,6 @@ arch_initcall(ebsa110_init);
 
 MACHINE_START(EBSA110, "EBSA110")
 	/* Maintainer: Russell King */
-	.phys_ram	= 0x00000000,
 	.phys_io	= 0xe0000000,
 	.io_pg_offst	= ((0xe0000000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000400,
diff --git a/arch/arm/mach-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c
index 49b898af003..5b64d5c5b96 100644
--- a/arch/arm/mach-footbridge/cats-hw.c
+++ b/arch/arm/mach-footbridge/cats-hw.c
@@ -85,7 +85,6 @@ fixup_cats(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(CATS, "Chalice-CATS")
 	/* Maintainer: Philip Blundell */
-	.phys_ram	= 0x00000000,
 	.phys_io	= DC21285_ARMCSR_BASE,
 	.io_pg_offst	= ((0xfe000000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-footbridge/co285.c b/arch/arm/mach-footbridge/co285.c
index 548a7908168..4545576ad8d 100644
--- a/arch/arm/mach-footbridge/co285.c
+++ b/arch/arm/mach-footbridge/co285.c
@@ -29,7 +29,6 @@ fixup_coebsa285(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(CO285, "co-EBSA285")
 	/* Maintainer: Mark van Doesburg */
-	.phys_ram	= 0x00000000,
 	.phys_io	= DC21285_ARMCSR_BASE,
 	.io_pg_offst	= ((0x7cf00000) >> 18) & 0xfffc,
 	.fixup		= fixup_coebsa285,
diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c
index 1c37605268d..b1d3bf20a41 100644
--- a/arch/arm/mach-footbridge/ebsa285.c
+++ b/arch/arm/mach-footbridge/ebsa285.c
@@ -14,7 +14,6 @@
 
 MACHINE_START(EBSA285, "EBSA285")
 	/* Maintainer: Russell King */
-	.phys_ram	= 0x00000000,
 	.phys_io	= DC21285_ARMCSR_BASE,
 	.io_pg_offst	= ((0xfe000000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index 9e563de465b..229bf0585e4 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -649,7 +649,6 @@ fixup_netwinder(struct machine_desc *desc, struct tag *tags,
 
 MACHINE_START(NETWINDER, "Rebel-NetWinder")
 	/* Maintainer: Russell King/Rebel.com */
-	.phys_ram	= 0x00000000,
 	.phys_io	= DC21285_ARMCSR_BASE,
 	.io_pg_offst	= ((0xfe000000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-footbridge/personal.c b/arch/arm/mach-footbridge/personal.c
index 0146b8bb59d..c4f843fc099 100644
--- a/arch/arm/mach-footbridge/personal.c
+++ b/arch/arm/mach-footbridge/personal.c
@@ -14,7 +14,6 @@
 
 MACHINE_START(PERSONAL_SERVER, "Compaq-PersonalServer")
 	/* Maintainer: Jamey Hicks / George France */
-	.phys_ram	= 0x00000000,
 	.phys_io	= DC21285_ARMCSR_BASE,
 	.io_pg_offst	= ((0xfe000000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-h720x/h7201-eval.c b/arch/arm/mach-h720x/h7201-eval.c
index fa59e9e2a5c..193f968edac 100644
--- a/arch/arm/mach-h720x/h7201-eval.c
+++ b/arch/arm/mach-h720x/h7201-eval.c
@@ -31,7 +31,6 @@
 
 MACHINE_START(H7201, "Hynix GMS30C7201")
 	/* Maintainer: Robert Schwebel, Pengutronix */
-	.phys_ram	= 0x40000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf0000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0001000,
diff --git a/arch/arm/mach-h720x/h7202-eval.c b/arch/arm/mach-h720x/h7202-eval.c
index d75c8221d2a..36266896979 100644
--- a/arch/arm/mach-h720x/h7202-eval.c
+++ b/arch/arm/mach-h720x/h7202-eval.c
@@ -72,7 +72,6 @@ static void __init init_eval_h7202(void)
 
 MACHINE_START(H7202, "Hynix HMS30C7202")
 	/* Maintainer: Robert Schwebel, Pengutronix */
-	.phys_ram	= 0x40000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf0000000) >> 18) & 0xfffc,
 	.boot_params	= 0x40000100,
diff --git a/arch/arm/mach-imx/mx1ads.c b/arch/arm/mach-imx/mx1ads.c
index c9e0cd8ed01..dc31e3fd6c5 100644
--- a/arch/arm/mach-imx/mx1ads.c
+++ b/arch/arm/mach-imx/mx1ads.c
@@ -69,7 +69,6 @@ mx1ads_map_io(void)
 
 MACHINE_START(MX1ADS, "Motorola MX1ADS")
 	/* Maintainer: Sascha Hauer, Pengutronix */
-	.phys_ram	= 0x08000000,
 	.phys_io	= 0x00200000,
 	.io_pg_offst	= ((0xe0200000) >> 18) & 0xfffc,
 	.boot_params	= 0x08000100,
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 3afedeb56a6..d8d3c2a5a97 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -347,7 +347,6 @@ static struct sys_timer ap_timer = {
 
 MACHINE_START(INTEGRATOR, "ARM-Integrator")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_ram	= 0x00000000,
 	.phys_io	= 0x16000000,
 	.io_pg_offst	= ((0xf1600000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 16cf2482a3e..31820170f30 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -578,7 +578,6 @@ static struct sys_timer cp_timer = {
 
 MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_ram	= 0x00000000,
 	.phys_io	= 0x16000000,
 	.io_pg_offst	= ((0xf1600000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-iop3xx/iop321-setup.c b/arch/arm/mach-iop3xx/iop321-setup.c
index 80770233b8d..e4f4c52d93d 100644
--- a/arch/arm/mach-iop3xx/iop321-setup.c
+++ b/arch/arm/mach-iop3xx/iop321-setup.c
@@ -151,7 +151,6 @@ extern void iop321_init_time(void);
 #if defined(CONFIG_ARCH_IQ80321)
 MACHINE_START(IQ80321, "Intel IQ80321")
 	/* Maintainer: Intel Corporation */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IQ80321_UART,
 	.io_pg_offst	= ((IQ80321_UART) >> 18) & 0xfffc,
 	.map_io		= iq80321_map_io,
@@ -163,7 +162,6 @@ MACHINE_END
 #elif defined(CONFIG_ARCH_IQ31244)
 MACHINE_START(IQ31244, "Intel IQ31244")
 	/* Maintainer: Intel Corp. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IQ31244_UART,
 	.io_pg_offst	= ((IQ31244_UART) >> 18) & 0xfffc,
 	.map_io		= iq31244_map_io,
diff --git a/arch/arm/mach-iop3xx/iop331-setup.c b/arch/arm/mach-iop3xx/iop331-setup.c
index e6ea1cba6a1..63585485123 100644
--- a/arch/arm/mach-iop3xx/iop331-setup.c
+++ b/arch/arm/mach-iop3xx/iop331-setup.c
@@ -195,7 +195,6 @@ extern void iq80332_map_io(void);
 #if defined(CONFIG_ARCH_IQ80331)
 MACHINE_START(IQ80331, "Intel IQ80331")
 	/* Maintainer: Intel Corp. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= 0xfefff000,
 	.io_pg_offst	= ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 	.map_io		= iq80331_map_io,
@@ -208,7 +207,6 @@ MACHINE_END
 #elif defined(CONFIG_MACH_IQ80332)
 MACHINE_START(IQ80332, "Intel IQ80332")
 	/* Maintainer: Intel Corp. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= 0xfefff000,
 	.io_pg_offst	= ((0xfffff000) >> 18) & 0xfffc, // virtual, physical
 	.map_io		= iq80332_map_io,
diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c
index 61f6006241b..9e5a13bb39d 100644
--- a/arch/arm/mach-ixp2000/enp2611.c
+++ b/arch/arm/mach-ixp2000/enp2611.c
@@ -254,7 +254,6 @@ static void __init enp2611_init_machine(void)
 
 MACHINE_START(ENP2611, "Radisys ENP-2611 PCI network processor board")
 	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
-	.phys_ram	= 0x00000000,
 	.phys_io	= IXP2000_UART_PHYS_BASE,
 	.io_pg_offst	= ((IXP2000_UART_VIRT_BASE) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-ixp2000/ixdp2400.c b/arch/arm/mach-ixp2000/ixdp2400.c
index fd280a93637..7c782403042 100644
--- a/arch/arm/mach-ixp2000/ixdp2400.c
+++ b/arch/arm/mach-ixp2000/ixdp2400.c
@@ -169,7 +169,6 @@ void ixdp2400_init_irq(void)
 
 MACHINE_START(IXDP2400, "Intel IXDP2400 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= 0x00000000,
 	.phys_io	= IXP2000_UART_PHYS_BASE,
 	.io_pg_offst	= ((IXP2000_UART_VIRT_BASE) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-ixp2000/ixdp2800.c b/arch/arm/mach-ixp2000/ixdp2800.c
index f9073aa2861..076e3f8acc9 100644
--- a/arch/arm/mach-ixp2000/ixdp2800.c
+++ b/arch/arm/mach-ixp2000/ixdp2800.c
@@ -285,7 +285,6 @@ void ixdp2800_init_irq(void)
 
 MACHINE_START(IXDP2800, "Intel IXDP2800 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= 0x00000000,
 	.phys_io	= IXP2000_UART_PHYS_BASE,
 	.io_pg_offst	= ((IXP2000_UART_VIRT_BASE) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-ixp2000/ixdp2x01.c b/arch/arm/mach-ixp2000/ixdp2x01.c
index e6a882f35da..10f06606d46 100644
--- a/arch/arm/mach-ixp2000/ixdp2x01.c
+++ b/arch/arm/mach-ixp2000/ixdp2x01.c
@@ -376,7 +376,6 @@ static void __init ixdp2x01_init_machine(void)
 #ifdef CONFIG_ARCH_IXDP2401
 MACHINE_START(IXDP2401, "Intel IXDP2401 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= 0x00000000,
 	.phys_io	= IXP2000_UART_PHYS_BASE,
 	.io_pg_offst	= ((IXP2000_UART_VIRT_BASE) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
@@ -390,7 +389,6 @@ MACHINE_END
 #ifdef CONFIG_ARCH_IXDP2801
 MACHINE_START(IXDP2801, "Intel IXDP2801 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= 0x00000000,
 	.phys_io	= IXP2000_UART_PHYS_BASE,
 	.io_pg_offst	= ((IXP2000_UART_VIRT_BASE) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c
index 679594a7398..13f8a7ac3ba 100644
--- a/arch/arm/mach-ixp4xx/coyote-setup.c
+++ b/arch/arm/mach-ixp4xx/coyote-setup.c
@@ -101,7 +101,6 @@ static void __init coyote_init(void)
 #ifdef CONFIG_ARCH_ADI_COYOTE
 MACHINE_START(ADI_COYOTE, "ADI Engineering Coyote")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
@@ -119,7 +118,6 @@ MACHINE_END
 #ifdef CONFIG_MACH_IXDPG425
 MACHINE_START(IXDPG425, "Intel IXDPG425")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
diff --git a/arch/arm/mach-ixp4xx/gtwx5715-setup.c b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
index 03867048997..654e2eed81f 100644
--- a/arch/arm/mach-ixp4xx/gtwx5715-setup.c
+++ b/arch/arm/mach-ixp4xx/gtwx5715-setup.c
@@ -142,7 +142,6 @@ static void __init gtwx5715_init(void)
 
 MACHINE_START(GTWX5715, "Gemtek GTWX5715 (Linksys WRV54G)")
 	/* Maintainer: George Joseph */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_UART2_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_UART2_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index c2e105c89c9..da72383ee30 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -121,7 +121,6 @@ static void __init ixdp425_init(void)
 #ifdef CONFIG_ARCH_IXDP425
 MACHINE_START(IXDP425, "Intel IXDP425 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
@@ -135,7 +134,6 @@ MACHINE_END
 #ifdef CONFIG_MACH_IXDP465
 MACHINE_START(IXDP465, "Intel IXDP465 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
@@ -149,7 +147,6 @@ MACHINE_END
 #ifdef CONFIG_ARCH_PRPMC1100
 MACHINE_START(IXCDP1100, "Intel IXCDP1100 Development Platform")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
@@ -169,7 +166,6 @@ MACHINE_END
 #ifdef CONFIG_ARCH_AVILA
 MACHINE_START(AVILA, "Gateworks Avila Network Platform")
 	/* Maintainer: Deepak Saxena <dsaxena@plexity.net> */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xfffc,
 	.map_io		= ixp4xx_map_io,
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index 49998a8bd4e..856d56f3b2a 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -124,7 +124,6 @@ static void __init nas100d_init(void)
 
 MACHINE_START(NAS100D, "Iomega NAS 100d")
 	/* Maintainer: www.nslu2-linux.org */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 289e94cb65c..da9340a5343 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -123,7 +123,6 @@ static void __init nslu2_init(void)
 
 MACHINE_START(NSLU2, "Linksys NSLU2")
 	/* Maintainer: www.nslu2-linux.org */
-	.phys_ram	= PHYS_OFFSET,
 	.phys_io	= IXP4XX_PERIPHERAL_BASE_PHYS,
 	.io_pg_offst	= ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-l7200/core.c b/arch/arm/mach-l7200/core.c
index 03ed742ae2b..ac626436e96 100644
--- a/arch/arm/mach-l7200/core.c
+++ b/arch/arm/mach-l7200/core.c
@@ -91,7 +91,6 @@ static void __init l7200_map_io(void)
 
 MACHINE_START(L7200, "LinkUp Systems L7200")
 	/* Maintainer: Steve Hill / Scott McConnell */
-	.phys_ram	= 0xf0000000,
 	.phys_io	= 0x80040000,
 	.io_pg_offst	= ((0xd0000000) >> 18) & 0xfffc,
 	.map_io		= l7200_map_io,
diff --git a/arch/arm/mach-lh7a40x/arch-kev7a400.c b/arch/arm/mach-lh7a40x/arch-kev7a400.c
index 19f2fa2244c..2cccc27c62e 100644
--- a/arch/arm/mach-lh7a40x/arch-kev7a400.c
+++ b/arch/arm/mach-lh7a40x/arch-kev7a400.c
@@ -112,7 +112,6 @@ void __init lh7a40x_init_board_irq (void)
 
 MACHINE_START (KEV7A400, "Sharp KEV7a400")
 	/* Maintainer: Marc Singer */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((io_p2v (0x80000000))>>18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-lh7a40x/arch-lpd7a40x.c b/arch/arm/mach-lh7a40x/arch-lpd7a40x.c
index 4eb962fdb3a..12e23277c5e 100644
--- a/arch/arm/mach-lh7a40x/arch-lpd7a40x.c
+++ b/arch/arm/mach-lh7a40x/arch-lpd7a40x.c
@@ -317,7 +317,6 @@ lpd7a400_map_io(void)
 
 MACHINE_START (LPD7A400, "Logic Product Development LPD7A400-10")
 	/* Maintainer: Marc Singer */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((io_p2v (0x80000000))>>18) & 0xfffc,
 	.boot_params	= 0xc0000100,
@@ -333,7 +332,6 @@ MACHINE_END
 
 MACHINE_START (LPD7A404, "Logic Product Development LPD7A404-10")
 	/* Maintainer: Marc Singer */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((io_p2v (0x80000000))>>18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-omap1/board-generic.c b/arch/arm/mach-omap1/board-generic.c
index 4b292e93fbe..bdc20b51b07 100644
--- a/arch/arm/mach-omap1/board-generic.c
+++ b/arch/arm/mach-omap1/board-generic.c
@@ -109,7 +109,6 @@ static void __init omap_generic_map_io(void)
 
 MACHINE_START(OMAP_GENERIC, "Generic OMAP1510/1610/1710")
 	/* Maintainer: Tony Lindgren <tony@atomide.com> */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index a07e2c9307f..9533c36a92d 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -199,7 +199,6 @@ static void __init h2_map_io(void)
 
 MACHINE_START(OMAP_H2, "TI-H2")
 	/* Maintainer: Imre Deak <imre.deak@nokia.com> */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 668e278433c..d665efc1c34 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -215,7 +215,6 @@ static void __init h3_map_io(void)
 
 MACHINE_START(OMAP_H3, "TI OMAP1710 H3 board")
 	/* Maintainer: Texas Instruments, Inc. */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-innovator.c b/arch/arm/mach-omap1/board-innovator.c
index 95f1ff36cdc..652f37c7f90 100644
--- a/arch/arm/mach-omap1/board-innovator.c
+++ b/arch/arm/mach-omap1/board-innovator.c
@@ -303,7 +303,6 @@ static void __init innovator_map_io(void)
 
 MACHINE_START(OMAP_INNOVATOR, "TI-Innovator")
 	/* Maintainer: MontaVista Software, Inc. */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-netstar.c b/arch/arm/mach-omap1/board-netstar.c
index 0448fa7de8a..58f783930d4 100644
--- a/arch/arm/mach-omap1/board-netstar.c
+++ b/arch/arm/mach-omap1/board-netstar.c
@@ -149,7 +149,6 @@ postcore_initcall(netstar_late_init);
 
 MACHINE_START(NETSTAR, "NetStar OMAP5910")
 	/* Maintainer: Ladislav Michl <michl@2n.cz> */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index e990e1bc166..e5d126e8f27 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -274,7 +274,6 @@ static void __init osk_map_io(void)
 
 MACHINE_START(OMAP_OSK, "TI-OSK")
 	/* Maintainer: Dirk Behme <dirk.behme@de.bosch.com> */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-palmte.c b/arch/arm/mach-omap1/board-palmte.c
index 5c975eb5c34..67fada20762 100644
--- a/arch/arm/mach-omap1/board-palmte.c
+++ b/arch/arm/mach-omap1/board-palmte.c
@@ -76,7 +76,6 @@ static void __init omap_generic_map_io(void)
 }
 
 MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-perseus2.c b/arch/arm/mach-omap1/board-perseus2.c
index 92ff5dc0735..88708a0c52a 100644
--- a/arch/arm/mach-omap1/board-perseus2.c
+++ b/arch/arm/mach-omap1/board-perseus2.c
@@ -199,7 +199,6 @@ static void __init omap_perseus2_map_io(void)
 
 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 	/* Maintainer: Kevin Hilman <kjh@hilman.org> */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap1/board-voiceblue.c b/arch/arm/mach-omap1/board-voiceblue.c
index 6f9a6220e78..959b4b847c8 100644
--- a/arch/arm/mach-omap1/board-voiceblue.c
+++ b/arch/arm/mach-omap1/board-voiceblue.c
@@ -281,7 +281,6 @@ EXPORT_SYMBOL(voiceblue_wdt_ping);
 
 MACHINE_START(VOICEBLUE, "VoiceBlue OMAP5910")
 	/* Maintainer: Ladislav Michl <michl@2n.cz> */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0xfff00000,
 	.io_pg_offst	= ((0xfef00000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index c602e7a3d93..b937123e5c6 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -69,7 +69,6 @@ static void __init omap_generic_map_io(void)
 
 MACHINE_START(OMAP_GENERIC, "Generic OMAP24xx")
 	/* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
-	.phys_ram	= 0x80000000,
 	.phys_io	= 0x48000000,
 	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
 	.boot_params	= 0x80000100,
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index f2554469a76..c3c35d40378 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -186,7 +186,6 @@ static void __init omap_h4_map_io(void)
 
 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
 	/* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
-	.phys_ram	= 0x80000000,
 	.phys_io	= 0x48000000,
 	.io_pg_offst	= ((0xd8000000) >> 18) & 0xfffc,
 	.boot_params	= 0x80000100,
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 5a7b873f29b..7ffd2de8f2f 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -342,7 +342,6 @@ static void __init fixup_corgi(struct machine_desc *desc,
 
 #ifdef CONFIG_MACH_CORGI
 MACHINE_START(CORGI, "SHARP Corgi")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup		= fixup_corgi,
@@ -355,7 +354,6 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_SHEPHERD
 MACHINE_START(SHEPHERD, "SHARP Shepherd")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup		= fixup_corgi,
@@ -368,7 +366,6 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_HUSKY
 MACHINE_START(HUSKY, "SHARP Husky")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup		= fixup_corgi,
diff --git a/arch/arm/mach-pxa/idp.c b/arch/arm/mach-pxa/idp.c
index 7de159e2ab4..347b9dea24c 100644
--- a/arch/arm/mach-pxa/idp.c
+++ b/arch/arm/mach-pxa/idp.c
@@ -183,7 +183,6 @@ static void __init idp_map_io(void)
 
 MACHINE_START(PXA_IDP, "Vibren PXA255 IDP")
 	/* Maintainer: Vibren Technologies */
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.map_io		= idp_map_io,
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index b464bc88ff9..3e26d7ce5bb 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -437,7 +437,6 @@ static void __init lubbock_map_io(void)
 
 MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
 	/* Maintainer: MontaVista Software Inc. */
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.map_io		= lubbock_map_io,
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index 8da9d3efe9a..d5bda60209e 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -489,7 +489,6 @@ static void __init mainstone_map_io(void)
 
 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
 	/* Maintainer: MontaVista Software Inc. */
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.map_io		= mainstone_map_io,
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index 663c9500598..911e6ff5a9b 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -311,7 +311,6 @@ static void __init fixup_poodle(struct machine_desc *desc,
 }
 
 MACHINE_START(POODLE, "SHARP Poodle")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup		= fixup_poodle,
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index a9eacc06555..c094d99ebf5 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -497,7 +497,6 @@ static void __init fixup_spitz(struct machine_desc *desc,
 
 #ifdef CONFIG_MACH_SPITZ
 MACHINE_START(SPITZ, "SHARP Spitz")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup		= fixup_spitz,
@@ -510,7 +509,6 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_BORZOI
 MACHINE_START(BORZOI, "SHARP Borzoi")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup		= fixup_spitz,
@@ -523,7 +521,6 @@ MACHINE_END
 
 #ifdef CONFIG_MACH_AKITA
 MACHINE_START(AKITA, "SHARP Akita")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup		= fixup_spitz,
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index e4f92efc616..d168286ed47 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -295,7 +295,6 @@ static void __init fixup_tosa(struct machine_desc *desc,
 }
 
 MACHINE_START(TOSA, "SHARP Tosa")
-	.phys_ram	= 0xa0000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
 	.fixup          = fixup_tosa,
diff --git a/arch/arm/mach-realview/realview_eb.c b/arch/arm/mach-realview/realview_eb.c
index 112f7592aca..d4a586e38d5 100644
--- a/arch/arm/mach-realview/realview_eb.c
+++ b/arch/arm/mach-realview/realview_eb.c
@@ -166,7 +166,6 @@ static void __init realview_eb_init(void)
 
 MACHINE_START(REALVIEW_EB, "ARM-RealView EB")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_ram	= 0x00000000,
 	.phys_io	= REALVIEW_UART0_BASE,
 	.io_pg_offst	= (IO_ADDRESS(REALVIEW_UART0_BASE) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-rpc/riscpc.c b/arch/arm/mach-rpc/riscpc.c
index 5c4ac1c008a..208a2b5dba1 100644
--- a/arch/arm/mach-rpc/riscpc.c
+++ b/arch/arm/mach-rpc/riscpc.c
@@ -177,7 +177,6 @@ extern struct sys_timer ioc_timer;
 
 MACHINE_START(RISCPC, "Acorn-RiscPC")
 	/* Maintainer: Russell King */
-	.phys_ram	= 0x10000000,
 	.phys_io	= 0x03000000,
 	.io_pg_offst	= ((0xe0000000) >> 18) & 0xfffc,
 	.boot_params	= 0x10000100,
diff --git a/arch/arm/mach-s3c2410/mach-anubis.c b/arch/arm/mach-s3c2410/mach-anubis.c
index 0f81fc0c2f7..3e327b8e46b 100644
--- a/arch/arm/mach-s3c2410/mach-anubis.c
+++ b/arch/arm/mach-s3c2410/mach-anubis.c
@@ -294,7 +294,6 @@ static void __init anubis_map_io(void)
 
 MACHINE_START(ANUBIS, "Simtec-Anubis")
 	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
index 4d962717fdf..995bb8add33 100644
--- a/arch/arm/mach-s3c2410/mach-bast.c
+++ b/arch/arm/mach-s3c2410/mach-bast.c
@@ -527,7 +527,6 @@ static void __init bast_init(void)
 
 MACHINE_START(BAST, "Simtec-BAST")
 	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-h1940.c b/arch/arm/mach-s3c2410/mach-h1940.c
index 0aa8760598f..1c316f14ed9 100644
--- a/arch/arm/mach-s3c2410/mach-h1940.c
+++ b/arch/arm/mach-s3c2410/mach-h1940.c
@@ -171,7 +171,6 @@ static void __init h1940_init(void)
 
 MACHINE_START(H1940, "IPAQ-H1940")
 	/* Maintainer: Ben Dooks <ben@fluff.org> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-n30.c b/arch/arm/mach-s3c2410/mach-n30.c
index 378d640ab00..116ac316996 100644
--- a/arch/arm/mach-s3c2410/mach-n30.c
+++ b/arch/arm/mach-s3c2410/mach-n30.c
@@ -128,7 +128,6 @@ MACHINE_START(N30, "Acer-N30")
 	/* Maintainer: Christer Weinigel <christer@weinigel.se>,
 				Ben Dooks <ben-linux@fluff.org>
 	*/
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-nexcoder.c b/arch/arm/mach-s3c2410/mach-nexcoder.c
index 42b0eeff2e0..07d09509a62 100644
--- a/arch/arm/mach-s3c2410/mach-nexcoder.c
+++ b/arch/arm/mach-s3c2410/mach-nexcoder.c
@@ -148,7 +148,6 @@ static void __init nexcoder_map_io(void)
 
 MACHINE_START(NEXCODER_2440, "NexVision - Nexcoder 2440")
 	/* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-otom.c b/arch/arm/mach-s3c2410/mach-otom.c
index a2eb9ed48fc..b39daedf93c 100644
--- a/arch/arm/mach-s3c2410/mach-otom.c
+++ b/arch/arm/mach-s3c2410/mach-otom.c
@@ -116,7 +116,6 @@ static void __init otom11_map_io(void)
 
 MACHINE_START(OTOM, "Nex Vision - Otom 1.1")
 	/* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-rx3715.c b/arch/arm/mach-s3c2410/mach-rx3715.c
index f8d86d1e16b..0260ed5ab94 100644
--- a/arch/arm/mach-s3c2410/mach-rx3715.c
+++ b/arch/arm/mach-s3c2410/mach-rx3715.c
@@ -205,7 +205,6 @@ static void __init rx3715_init_machine(void)
 
 MACHINE_START(RX3715, "IPAQ-RX3715")
 	/* Maintainer: Ben Dooks <ben@fluff.org> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-smdk2410.c b/arch/arm/mach-s3c2410/mach-smdk2410.c
index 2c91965ee1c..1e76e1fdfce 100644
--- a/arch/arm/mach-s3c2410/mach-smdk2410.c
+++ b/arch/arm/mach-s3c2410/mach-smdk2410.c
@@ -115,7 +115,6 @@ static void __init smdk2410_init_irq(void)
 MACHINE_START(SMDK2410, "SMDK2410") /* @TODO: request a new identifier and switch
 				    * to SMDK2410 */
 	/* Maintainer: Jonas Dietsche */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-smdk2440.c b/arch/arm/mach-s3c2410/mach-smdk2440.c
index 4e31118533e..f4315721c3b 100644
--- a/arch/arm/mach-s3c2410/mach-smdk2440.c
+++ b/arch/arm/mach-s3c2410/mach-smdk2440.c
@@ -216,7 +216,6 @@ static void __init smdk2440_machine_init(void)
 
 MACHINE_START(S3C2440, "SMDK2440")
 	/* Maintainer: Ben Dooks <ben@fluff.org> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c
index ae7e099bf6c..785fc9cdcf7 100644
--- a/arch/arm/mach-s3c2410/mach-vr1000.c
+++ b/arch/arm/mach-s3c2410/mach-vr1000.c
@@ -395,7 +395,6 @@ static void __init vr1000_map_io(void)
 
 MACHINE_START(VR1000, "Thorcom-VR1000")
 	/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
-	.phys_ram	= S3C2410_SDRAM_PA,
 	.phys_io	= S3C2410_PA_UART,
 	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
 	.boot_params	= S3C2410_SDRAM_PA + 0x100,
diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index a66ac61233a..a599bb0d4ab 100644
--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -447,7 +447,6 @@ static void __init assabet_map_io(void)
 
 
 MACHINE_START(ASSABET, "Intel-Assabet")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-sa1100/badge4.c b/arch/arm/mach-sa1100/badge4.c
index edccd5eb06b..f60b7a66dfa 100644
--- a/arch/arm/mach-sa1100/badge4.c
+++ b/arch/arm/mach-sa1100/badge4.c
@@ -297,7 +297,6 @@ static void __init badge4_map_io(void)
 }
 
 MACHINE_START(BADGE4, "Hewlett-Packard Laboratories BadgePAD 4")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-sa1100/cerf.c b/arch/arm/mach-sa1100/cerf.c
index 508593722bc..8269a9ef9af 100644
--- a/arch/arm/mach-sa1100/cerf.c
+++ b/arch/arm/mach-sa1100/cerf.c
@@ -135,7 +135,6 @@ static void __init cerf_init(void)
 
 MACHINE_START(CERF, "Intrinsyc CerfBoard/CerfCube")
 	/* Maintainer: support@intrinsyc.com */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.map_io		= cerf_map_io,
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c
index 522abc036d3..6888816a193 100644
--- a/arch/arm/mach-sa1100/collie.c
+++ b/arch/arm/mach-sa1100/collie.c
@@ -191,7 +191,6 @@ static void __init collie_map_io(void)
 }
 
 MACHINE_START(COLLIE, "Sharp-Collie")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.map_io		= collie_map_io,
diff --git a/arch/arm/mach-sa1100/h3600.c b/arch/arm/mach-sa1100/h3600.c
index e8352b7f74b..b04d9227102 100644
--- a/arch/arm/mach-sa1100/h3600.c
+++ b/arch/arm/mach-sa1100/h3600.c
@@ -392,7 +392,6 @@ static void __init h3100_map_io(void)
 }
 
 MACHINE_START(H3100, "Compaq iPAQ H3100")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
@@ -510,7 +509,6 @@ static void __init h3600_map_io(void)
 }
 
 MACHINE_START(H3600, "Compaq iPAQ H3600")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
@@ -897,7 +895,6 @@ static void __init h3800_map_io(void)
 }
 
 MACHINE_START(H3800, "Compaq iPAQ H3800")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-sa1100/hackkit.c b/arch/arm/mach-sa1100/hackkit.c
index c922e043c42..046b213efd5 100644
--- a/arch/arm/mach-sa1100/hackkit.c
+++ b/arch/arm/mach-sa1100/hackkit.c
@@ -195,7 +195,6 @@ static void __init hackkit_init(void)
  */
 
 MACHINE_START(HACKKIT, "HackKit Cpu Board")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-sa1100/jornada720.c b/arch/arm/mach-sa1100/jornada720.c
index 2f671cc3cb9..17f5a43acdb 100644
--- a/arch/arm/mach-sa1100/jornada720.c
+++ b/arch/arm/mach-sa1100/jornada720.c
@@ -173,7 +173,6 @@ static void __init jornada720_mach_init(void)
 
 MACHINE_START(JORNADA720, "HP Jornada 720")
 	/* Maintainer: Michael Gernoth <michael@gernoth.net> */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-sa1100/lart.c b/arch/arm/mach-sa1100/lart.c
index 8c9e3dd5294..07d3a696ae7 100644
--- a/arch/arm/mach-sa1100/lart.c
+++ b/arch/arm/mach-sa1100/lart.c
@@ -60,7 +60,6 @@ static void __init lart_map_io(void)
 }
 
 MACHINE_START(LART, "LART")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-sa1100/pleb.c b/arch/arm/mach-sa1100/pleb.c
index 58c18f9e9b7..0709ebab531 100644
--- a/arch/arm/mach-sa1100/pleb.c
+++ b/arch/arm/mach-sa1100/pleb.c
@@ -146,7 +146,6 @@ static void __init pleb_map_io(void)
 }
 
 MACHINE_START(PLEB, "PLEB")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.map_io		= pleb_map_io,
diff --git a/arch/arm/mach-sa1100/shannon.c b/arch/arm/mach-sa1100/shannon.c
index 7482288278d..5aafe0b5699 100644
--- a/arch/arm/mach-sa1100/shannon.c
+++ b/arch/arm/mach-sa1100/shannon.c
@@ -83,7 +83,6 @@ static void __init shannon_map_io(void)
 }
 
 MACHINE_START(SHANNON, "Shannon (AKA: Tuxscreen)")
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
index 439ddc9b06d..d2c23b2c34d 100644
--- a/arch/arm/mach-sa1100/simpad.c
+++ b/arch/arm/mach-sa1100/simpad.c
@@ -229,7 +229,6 @@ arch_initcall(simpad_init);
 
 MACHINE_START(SIMPAD, "Simpad")
 	/* Maintainer: Holger Freyther */
-	.phys_ram	= 0xc0000000,
 	.phys_io	= 0x80000000,
 	.io_pg_offst	= ((0xf8000000) >> 18) & 0xfffc,
 	.boot_params	= 0xc0000100,
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c
index 2d428b6dbb5..877600e212d 100644
--- a/arch/arm/mach-shark/core.c
+++ b/arch/arm/mach-shark/core.c
@@ -111,7 +111,6 @@ static struct sys_timer shark_timer = {
 
 MACHINE_START(SHARK, "Shark")
 	/* Maintainer: Alexander Schulz */
-	.phys_ram	= 0x08000000,
 	.phys_io	= 0x40000000,
 	.io_pg_offst	= ((0xe0000000) >> 18) & 0xfffc,
 	.boot_params	= 0x08003000,
diff --git a/arch/arm/mach-versatile/versatile_ab.c b/arch/arm/mach-versatile/versatile_ab.c
index e74c8a2fbb9..1eb59678207 100644
--- a/arch/arm/mach-versatile/versatile_ab.c
+++ b/arch/arm/mach-versatile/versatile_ab.c
@@ -36,7 +36,6 @@
 
 MACHINE_START(VERSATILE_AB, "ARM-Versatile AB")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_ram	= 0x00000000,
 	.phys_io	= 0x101f1000,
 	.io_pg_offst	= ((0xf11f1000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
diff --git a/arch/arm/mach-versatile/versatile_pb.c b/arch/arm/mach-versatile/versatile_pb.c
index 22d5ca07f75..f17ab4fb548 100644
--- a/arch/arm/mach-versatile/versatile_pb.c
+++ b/arch/arm/mach-versatile/versatile_pb.c
@@ -100,7 +100,6 @@ arch_initcall(versatile_pb_init);
 
 MACHINE_START(VERSATILE_PB, "ARM-Versatile PB")
 	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.phys_ram	= 0x00000000,
 	.phys_io	= 0x101f1000,
 	.io_pg_offst	= ((0xf11f1000) >> 18) & 0xfffc,
 	.boot_params	= 0x00000100,
-- 
cgit v1.2.3


From afeb90ca08000cbd75f22836e667f368e25fe3ac Mon Sep 17 00:00:00 2001
From: "Hyok S. Choi" <hyok.choi@samsung.com>
Date: Fri, 13 Jan 2006 21:05:25 +0000
Subject: [ARM] Support register switch in nommu mode

This patch adds register switch support in nommu mode.

Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/entry-armv.S | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index a52baedf626..fb8e7f4c4b3 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -3,6 +3,7 @@
  *
  *  Copyright (C) 1996,1997,1998 Russell King.
  *  ARM700 fix by Matthew Godbolt (linux-user@willothewisp.demon.co.uk)
+ *  nommu support by Hyok S. Choi (hyok.choi@samsung.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -538,7 +539,11 @@ ENTRY(__switch_to)
 	add	ip, r1, #TI_CPU_SAVE
 	ldr	r3, [r2, #TI_TP_VALUE]
 	stmia	ip!, {r4 - sl, fp, sp, lr}	@ Store most regs on stack
+#ifndef CONFIG_MMU
+	add	r2, r2, #TI_CPU_DOMAIN
+#else
 	ldr	r6, [r2, #TI_CPU_DOMAIN]!
+#endif
 #if __LINUX_ARM_ARCH__ >= 6
 #ifdef CONFIG_CPU_MPCORE
 	clrex
@@ -556,7 +561,9 @@ ENTRY(__switch_to)
 	mov	r4, #0xffff0fff
 	str	r3, [r4, #-15]			@ TLS val at 0xffff0ff0
 #endif
+#ifdef CONFIG_MMU
 	mcr	p15, 0, r6, c3, c0, 0		@ Set domain register
+#endif
 #ifdef CONFIG_VFP
 	@ Always disable VFP so we can lazily save/restore the old
 	@ state. This occurs in the context of the previous thread.
-- 
cgit v1.2.3


From 5ff3fd27161127cc464fc04548d58672a6a8272a Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Fri, 13 Jan 2006 21:09:17 +0000
Subject: [ARM] Remove useless 'default n' from Kconfig files

The default is already 'n' so there's no need to explicitly state it.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-realview/Kconfig  | 1 -
 arch/arm/mach-versatile/Kconfig | 1 -
 arch/arm/plat-omap/Kconfig      | 3 ---
 3 files changed, 5 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index 129976866d4..17f5f4439fe 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/arch/arm/mach-realview/Kconfig
@@ -3,7 +3,6 @@ menu "RealView platform type"
 
 config MACH_REALVIEW_EB
 	bool "Support RealView/EB platform"
-	default n
 	select ARM_GIC
 	help
 	  Include support for the ARM(R) RealView Emulation Baseboard platform.
diff --git a/arch/arm/mach-versatile/Kconfig b/arch/arm/mach-versatile/Kconfig
index 8d787f4c78e..95096afd527 100644
--- a/arch/arm/mach-versatile/Kconfig
+++ b/arch/arm/mach-versatile/Kconfig
@@ -9,7 +9,6 @@ config ARCH_VERSATILE_PB
 
 config MACH_VERSATILE_AB
 	bool "Support Versatile/AB platform"
-	default n
 	help
 	  Include support for the ARM(R) Versatile/AP platform.
 
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 9693e9b4ffd..0887bb2a255 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -22,7 +22,6 @@ comment "OMAP Feature Selections"
 config OMAP_RESET_CLOCKS
 	bool "Reset unused clocks during boot"
 	depends on ARCH_OMAP
-	default n
 	help
 	  Say Y if you want to reset unused clocks during boot.
 	  This option saves power, but assumes all drivers are
@@ -44,7 +43,6 @@ config OMAP_MUX
 config OMAP_MUX_DEBUG
 	bool "Multiplexing debug output"
         depends on OMAP_MUX
-        default n
         help
           Makes the multiplexing functions print out a lot of debug info.
           This is useful if you want to find out the correct values of the
@@ -93,7 +91,6 @@ config OMAP_32K_TIMER_HZ
 
 config OMAP_DM_TIMER
 	bool "Use dual-mode timer"
-	default n
 	depends on ARCH_OMAP16XX
 	help
 	 Select this option if you want to use OMAP Dual-Mode timers.
-- 
cgit v1.2.3


From fa0fe48fcca9ea7f8c13e21d2646bbaa1747d183 Mon Sep 17 00:00:00 2001
From: Russell King <rmk@dyn-67.arm.linux.org.uk>
Date: Fri, 13 Jan 2006 21:30:48 +0000
Subject: [ARM] Separate VIC (vectored interrupt controller) support from
 Versatile

Other machines may wish to make use of the VIC support code, so
move it to arch/arm/common.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig               |  1 +
 arch/arm/common/Kconfig        |  7 +++-
 arch/arm/common/Makefile       |  1 +
 arch/arm/common/vic.c          | 92 ++++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-versatile/core.c | 58 +++-----------------------
 5 files changed, 104 insertions(+), 55 deletions(-)
 create mode 100644 arch/arm/common/vic.c

(limited to 'arch/arm')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 50b9afa8ae6..c4d585e2de7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -180,6 +180,7 @@ config ARCH_OMAP
 config ARCH_VERSATILE
 	bool "Versatile"
 	select ARM_AMBA
+	select ARM_VIC
 	select ICST307
 	help
 	  This enables support for ARM Ltd Versatile board.
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig
index d7509c7a3c5..5e34ca6d38b 100644
--- a/arch/arm/common/Kconfig
+++ b/arch/arm/common/Kconfig
@@ -1,7 +1,10 @@
-config ICST525
+config ARM_GIC
 	bool
 
-config ARM_GIC
+config ARM_VIC
+	bool
+
+config ICST525
 	bool
 
 config ICST307
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index ec8d17c9690..c81a2ff6b5b 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -4,6 +4,7 @@
 
 obj-y				+= rtctime.o
 obj-$(CONFIG_ARM_GIC)		+= gic.o
+obj-$(CONFIG_ARM_VIC)		+= vic.o
 obj-$(CONFIG_ICST525)		+= icst525.o
 obj-$(CONFIG_ICST307)		+= icst307.o
 obj-$(CONFIG_SA1111)		+= sa1111.o
diff --git a/arch/arm/common/vic.c b/arch/arm/common/vic.c
new file mode 100644
index 00000000000..a45ed1687a5
--- /dev/null
+++ b/arch/arm/common/vic.c
@@ -0,0 +1,92 @@
+/*
+ *  linux/arch/arm/common/vic.c
+ *
+ *  Copyright (C) 1999 - 2003 ARM Limited
+ *  Copyright (C) 2000 Deep Blue Solutions Ltd
+ *
+ * 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
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/init.h>
+#include <linux/list.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/mach/irq.h>
+#include <asm/hardware/vic.h>
+
+static void __iomem *vic_base;
+
+static void vic_mask_irq(unsigned int irq)
+{
+	irq -= IRQ_VIC_START;
+	writel(1 << irq, vic_base + VIC_INT_ENABLE_CLEAR);
+}
+
+static void vic_unmask_irq(unsigned int irq)
+{
+	irq -= IRQ_VIC_START;
+	writel(1 << irq, vic_base + VIC_INT_ENABLE);
+}
+
+static struct irqchip vic_chip = {
+	.ack	= vic_mask_irq,
+	.mask	= vic_mask_irq,
+	.unmask	= vic_unmask_irq,
+};
+
+void __init vic_init(void __iomem *base, u32 vic_sources)
+{
+	unsigned int i;
+
+	vic_base = base;
+
+	/* Disable all interrupts initially. */
+
+	writel(0, vic_base + VIC_INT_SELECT);
+	writel(0, vic_base + VIC_INT_ENABLE);
+	writel(~0, vic_base + VIC_INT_ENABLE_CLEAR);
+	writel(0, vic_base + VIC_IRQ_STATUS);
+	writel(0, vic_base + VIC_ITCR);
+	writel(~0, vic_base + VIC_INT_SOFT_CLEAR);
+
+	/*
+	 * Make sure we clear all existing interrupts
+	 */
+	writel(0, vic_base + VIC_VECT_ADDR);
+	for (i = 0; i < 19; i++) {
+		unsigned int value;
+
+		value = readl(vic_base + VIC_VECT_ADDR);
+		writel(value, vic_base + VIC_VECT_ADDR);
+	}
+
+	for (i = 0; i < 16; i++) {
+		void __iomem *reg = vic_base + VIC_VECT_CNTL0 + (i * 4);
+		writel(VIC_VECT_CNTL_ENABLE | i, reg);
+	}
+
+	writel(32, vic_base + VIC_DEF_VECT_ADDR);
+
+	for (i = 0; i < 32; i++) {
+		unsigned int irq = IRQ_VIC_START + i;
+
+		set_irq_chip(irq, &vic_chip);
+
+		if (vic_sources & (1 << i)) {
+			set_irq_handler(irq, do_level_IRQ);
+			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+		}
+	}
+}
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 90023745b23..9ebbe808b41 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -35,6 +35,7 @@
 #include <asm/leds.h>
 #include <asm/hardware/arm_timer.h>
 #include <asm/hardware/icst307.h>
+#include <asm/hardware/vic.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/flash.h>
@@ -56,24 +57,6 @@
 #define VA_VIC_BASE		__io_address(VERSATILE_VIC_BASE)
 #define VA_SIC_BASE		__io_address(VERSATILE_SIC_BASE)
 
-static void vic_mask_irq(unsigned int irq)
-{
-	irq -= IRQ_VIC_START;
-	writel(1 << irq, VA_VIC_BASE + VIC_IRQ_ENABLE_CLEAR);
-}
-
-static void vic_unmask_irq(unsigned int irq)
-{
-	irq -= IRQ_VIC_START;
-	writel(1 << irq, VA_VIC_BASE + VIC_IRQ_ENABLE);
-}
-
-static struct irqchip vic_chip = {
-	.ack	= vic_mask_irq,
-	.mask	= vic_mask_irq,
-	.unmask	= vic_unmask_irq,
-};
-
 static void sic_mask_irq(unsigned int irq)
 {
 	irq -= IRQ_SIC_START;
@@ -127,43 +110,12 @@ sic_handle_irq(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
 
 void __init versatile_init_irq(void)
 {
-	unsigned int i, value;
-
-	/* Disable all interrupts initially. */
+	unsigned int i;
 
-	writel(0, VA_VIC_BASE + VIC_INT_SELECT);
-	writel(0, VA_VIC_BASE + VIC_IRQ_ENABLE);
-	writel(~0, VA_VIC_BASE + VIC_IRQ_ENABLE_CLEAR);
-	writel(0, VA_VIC_BASE + VIC_IRQ_STATUS);
-	writel(0, VA_VIC_BASE + VIC_ITCR);
-	writel(~0, VA_VIC_BASE + VIC_IRQ_SOFT_CLEAR);
-
-	/*
-	 * Make sure we clear all existing interrupts
-	 */
-	writel(0, VA_VIC_BASE + VIC_VECT_ADDR);
-	for (i = 0; i < 19; i++) {
-		value = readl(VA_VIC_BASE + VIC_VECT_ADDR);
-		writel(value, VA_VIC_BASE + VIC_VECT_ADDR);
-	}
-
-	for (i = 0; i < 16; i++) {
-		value = readl(VA_VIC_BASE + VIC_VECT_CNTL0 + (i * 4));
-		writel(value | VICVectCntl_Enable | i, VA_VIC_BASE + VIC_VECT_CNTL0 + (i * 4));
-	}
-
-	writel(32, VA_VIC_BASE + VIC_DEF_VECT_ADDR);
-
-	for (i = IRQ_VIC_START; i <= IRQ_VIC_END; i++) {
-		if (i != IRQ_VICSOURCE31) {
-			set_irq_chip(i, &vic_chip);
-			set_irq_handler(i, do_level_IRQ);
-			set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
-		}
-	}
+	vic_init(VA_VIC_BASE, ~(1 << 31));
 
 	set_irq_handler(IRQ_VICSOURCE31, sic_handle_irq);
-	vic_unmask_irq(IRQ_VICSOURCE31);
+	enable_irq(IRQ_VICSOURCE31);
 
 	/* Do second interrupt controller */
 	writel(~0, VA_SIC_BASE + SIC_IRQ_ENABLE_CLEAR);
@@ -877,7 +829,7 @@ static unsigned long versatile_gettimeoffset(void)
 	ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff;
 	do {
 		ticks1 = ticks2;
-		status = __raw_readl(VA_IC_BASE + VIC_IRQ_RAW_STATUS);
+		status = __raw_readl(VA_IC_BASE + VIC_RAW_STATUS);
 		ticks2 = readl(TIMER0_VA_BASE + TIMER_VALUE) & 0xffff;
 	} while (ticks2 > ticks1);
 
-- 
cgit v1.2.3


From 2dede2d8e925f4c2cb4e136b14df127685e15dd3 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:18:08 +0000
Subject: [ARM] 3102/1: ARM EABI: stack pointer must be 64-bit aligned after a
 CPU exception

Patch from Nicolas Pitre

The ARM EABI says that the stack pointer has to be 64-bit aligned for
reasons already mentioned in patch #3101 when calling C functions.

We therefore must verify and adjust sp accordingly when taking an
exception from kernel mode since sp might not necessarily be 64-bit
aligned if the exception occurs in the middle of a kernel function.

If the exception occurs while in user mode then no sp fixup is needed as
long as sizeof(struct pt_regs) as well as any additional syscall data
stack space remain multiples of 8.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/entry-armv.S   | 17 +++++++++++++++++
 arch/arm/kernel/entry-header.S |  1 +
 2 files changed, 18 insertions(+)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index fb8e7f4c4b3..874e6bb7940 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -105,14 +105,24 @@ common_invalid:
 /*
  * SVC mode handlers
  */
+
+#if defined(CONFIG_AEABI) && (__LINUX_ARM_ARCH__ >= 5)
+#define SPFIX(code...) code
+#else
+#define SPFIX(code...)
+#endif
+
 	.macro	svc_entry
 	sub	sp, sp, #S_FRAME_SIZE
+ SPFIX(	tst	sp, #4		)
+ SPFIX(	bicne	sp, sp, #4	)
 	stmib	sp, {r1 - r12}
 
 	ldmia	r0, {r1 - r3}
 	add	r5, sp, #S_SP		@ here for interlock avoidance
 	mov	r4, #-1			@  ""  ""      ""       ""
 	add	r0, sp, #S_FRAME_SIZE   @  ""  ""      ""       ""
+ SPFIX(	addne	r0, r0, #4	)
 	str	r1, [sp]		@ save the "real" r0 copied
 					@ from the exception stack
 
@@ -303,7 +313,14 @@ __pabt_svc:
 
 /*
  * User mode handlers
+ *
+ * EABI note: sp_svc is always 64-bit aligned here, so should S_FRAME_SIZE
  */
+
+#if defined(CONFIG_AEABI) && (__LINUX_ARM_ARCH__ >= 5) && (S_FRAME_SIZE & 7)
+#error "sizeof(struct pt_regs) must be a multiple of 8"
+#endif
+
 	.macro	usr_entry
 	sub	sp, sp, #S_FRAME_SIZE
 	stmib	sp, {r1 - r12}
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 648cfff9313..55c99cdab7d 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -19,6 +19,7 @@
 @
 @ Most of the stack format comes from struct pt_regs, but with
 @ the addition of 8 bytes for storing syscall args 5 and 6.
+@ This _must_ remain a multiple of 8 for EABI.
 @
 #define S_OFF		8
 
-- 
cgit v1.2.3


From 499b2ea11ff00c624d63af23516404fa2156639a Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:18:09 +0000
Subject: [ARM] 3103/1: ARM EABI: stack pointer must be 64-bit aligned (part 2)

Patch from Nicolas Pitre

We must make sure that assembly code that modifies the stack pointer
before calling a C function does it so it remains 64-bit aligned.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/semaphore.c | 17 +++++++++--------
 arch/arm/lib/lib1funcs.S    |  4 ++--
 2 files changed, 11 insertions(+), 10 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/semaphore.c b/arch/arm/kernel/semaphore.c
index 4c31f292305..981fe5c6ccb 100644
--- a/arch/arm/kernel/semaphore.c
+++ b/arch/arm/kernel/semaphore.c
@@ -177,41 +177,42 @@ int __down_trylock(struct semaphore * sem)
  * ip contains the semaphore pointer on entry. Save the C-clobbered
  * registers (r0 to r3 and lr), but not ip, as we use it as a return
  * value in some cases..
+ * To remain AAPCS compliant (64-bit stack align) we save r4 as well.
  */
 asm("	.section .sched.text,\"ax\",%progbits	\n\
 	.align	5				\n\
 	.globl	__down_failed			\n\
 __down_failed:					\n\
-	stmfd	sp!, {r0 - r3, lr}		\n\
+	stmfd	sp!, {r0 - r4, lr}		\n\
 	mov	r0, ip				\n\
 	bl	__down				\n\
-	ldmfd	sp!, {r0 - r3, pc}		\n\
+	ldmfd	sp!, {r0 - r4, pc}		\n\
 						\n\
 	.align	5				\n\
 	.globl	__down_interruptible_failed	\n\
 __down_interruptible_failed:			\n\
-	stmfd	sp!, {r0 - r3, lr}		\n\
+	stmfd	sp!, {r0 - r4, lr}		\n\
 	mov	r0, ip				\n\
 	bl	__down_interruptible		\n\
 	mov	ip, r0				\n\
-	ldmfd	sp!, {r0 - r3, pc}		\n\
+	ldmfd	sp!, {r0 - r4, pc}		\n\
 						\n\
 	.align	5				\n\
 	.globl	__down_trylock_failed		\n\
 __down_trylock_failed:				\n\
-	stmfd	sp!, {r0 - r3, lr}		\n\
+	stmfd	sp!, {r0 - r4, lr}		\n\
 	mov	r0, ip				\n\
 	bl	__down_trylock			\n\
 	mov	ip, r0				\n\
-	ldmfd	sp!, {r0 - r3, pc}		\n\
+	ldmfd	sp!, {r0 - r4, pc}		\n\
 						\n\
 	.align	5				\n\
 	.globl	__up_wakeup			\n\
 __up_wakeup:					\n\
-	stmfd	sp!, {r0 - r3, lr}		\n\
+	stmfd	sp!, {r0 - r4, lr}		\n\
 	mov	r0, ip				\n\
 	bl	__up				\n\
-	ldmfd	sp!, {r0 - r3, pc}		\n\
+	ldmfd	sp!, {r0 - r4, pc}		\n\
 	");
 
 EXPORT_SYMBOL(__down_failed);
diff --git a/arch/arm/lib/lib1funcs.S b/arch/arm/lib/lib1funcs.S
index 59026029d01..4964e5bafa0 100644
--- a/arch/arm/lib/lib1funcs.S
+++ b/arch/arm/lib/lib1funcs.S
@@ -306,9 +306,9 @@ ENTRY(__modsi3)
 
 Ldiv0:
 
-	str	lr, [sp, #-4]!
+	str	lr, [sp, #-8]!
 	bl	__div0
 	mov	r0, #0			@ About as wrong as it could be.
-	ldr	pc, [sp], #4
+	ldr	pc, [sp], #8
 
 
-- 
cgit v1.2.3


From ba95e4e4a0a8a3c6aba363d45f78d5f2e2d111eb Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:18:29 +0000
Subject: [ARM] 3104/1: ARM EABI: new helper function names

Patch from Nicolas Pitre

The ARM EABI defines new names for GCC helper functions.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/armksyms.c | 22 ++++++++++++++++++++++
 arch/arm/lib/ashldi3.S     |  1 +
 arch/arm/lib/ashrdi3.S     |  1 +
 arch/arm/lib/lib1funcs.S   | 23 +++++++++++++++++++++++
 arch/arm/lib/lshrdi3.S     |  1 +
 arch/arm/lib/muldi3.S      |  1 +
 arch/arm/lib/ucmpdi2.S     | 14 ++++++++++++++
 7 files changed, 63 insertions(+)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 9997098009a..1574941ebfe 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -35,6 +35,16 @@ extern void __udivsi3(void);
 extern void __umodsi3(void);
 extern void __do_div64(void);
 
+extern void __aeabi_idiv(void);
+extern void __aeabi_idivmod(void);
+extern void __aeabi_lasr(void);
+extern void __aeabi_llsl(void);
+extern void __aeabi_llsr(void);
+extern void __aeabi_lmul(void);
+extern void __aeabi_uidiv(void);
+extern void __aeabi_uidivmod(void);
+extern void __aeabi_ulcmp(void);
+
 extern void fpundefinstr(void);
 extern void fp_enter(void);
 
@@ -141,6 +151,18 @@ EXPORT_SYMBOL(__udivsi3);
 EXPORT_SYMBOL(__umodsi3);
 EXPORT_SYMBOL(__do_div64);
 
+#ifdef CONFIG_AEABI
+EXPORT_SYMBOL(__aeabi_idiv);
+EXPORT_SYMBOL(__aeabi_idivmod);
+EXPORT_SYMBOL(__aeabi_lasr);
+EXPORT_SYMBOL(__aeabi_llsl);
+EXPORT_SYMBOL(__aeabi_llsr);
+EXPORT_SYMBOL(__aeabi_lmul);
+EXPORT_SYMBOL(__aeabi_uidiv);
+EXPORT_SYMBOL(__aeabi_uidivmod);
+EXPORT_SYMBOL(__aeabi_ulcmp);
+#endif
+
 	/* bitops */
 EXPORT_SYMBOL(_set_bit_le);
 EXPORT_SYMBOL(_test_and_set_bit_le);
diff --git a/arch/arm/lib/ashldi3.S b/arch/arm/lib/ashldi3.S
index 561e20717b3..55e57a1c2e6 100644
--- a/arch/arm/lib/ashldi3.S
+++ b/arch/arm/lib/ashldi3.S
@@ -37,6 +37,7 @@ Boston, MA 02110-1301, USA.  */
 #endif
 
 ENTRY(__ashldi3)
+ENTRY(__aeabi_llsl)
 
 	subs	r3, r2, #32
 	rsb	ip, r2, #32
diff --git a/arch/arm/lib/ashrdi3.S b/arch/arm/lib/ashrdi3.S
index 86fb2a90c30..0b31398f89b 100644
--- a/arch/arm/lib/ashrdi3.S
+++ b/arch/arm/lib/ashrdi3.S
@@ -37,6 +37,7 @@ Boston, MA 02110-1301, USA.  */
 #endif
 
 ENTRY(__ashrdi3)
+ENTRY(__aeabi_lasr)
 
 	subs	r3, r2, #32
 	rsb	ip, r2, #32
diff --git a/arch/arm/lib/lib1funcs.S b/arch/arm/lib/lib1funcs.S
index 4964e5bafa0..4e492f4b3f0 100644
--- a/arch/arm/lib/lib1funcs.S
+++ b/arch/arm/lib/lib1funcs.S
@@ -206,6 +206,7 @@ Boston, MA 02111-1307, USA.  */
 
 
 ENTRY(__udivsi3)
+ENTRY(__aeabi_uidiv)
 
 	subs	r2, r1, #1
 	moveq	pc, lr
@@ -246,6 +247,7 @@ ENTRY(__umodsi3)
 
 
 ENTRY(__divsi3)
+ENTRY(__aeabi_idiv)
 
 	cmp	r1, #0
 	eor	ip, r0, r1			@ save the sign of the result.
@@ -303,6 +305,27 @@ ENTRY(__modsi3)
 	rsbmi	r0, r0, #0
 	mov	pc, lr
 
+#ifdef CONFIG_AEABI
+
+ENTRY(__aeabi_uidivmod)
+
+	stmfd	sp!, {r0, r1, ip, lr}
+	bl	__aeabi_uidiv
+	ldmfd	sp!, {r1, r2, ip, lr}
+	mul	r3, r0, r2
+	sub	r1, r1, r3
+	mov	pc, lr
+
+ENTRY(__aeabi_idivmod)
+
+	stmfd	sp!, {r0, r1, ip, lr}
+	bl	__aeabi_idiv
+	ldmfd	sp!, {r1, r2, ip, lr}
+	mul	r3, r0, r2
+	sub	r1, r1, r3
+	mov	pc, lr
+
+#endif
 
 Ldiv0:
 
diff --git a/arch/arm/lib/lshrdi3.S b/arch/arm/lib/lshrdi3.S
index 46c2ed19ec9..a86dbdd59cc 100644
--- a/arch/arm/lib/lshrdi3.S
+++ b/arch/arm/lib/lshrdi3.S
@@ -37,6 +37,7 @@ Boston, MA 02110-1301, USA.  */
 #endif
 
 ENTRY(__lshrdi3)
+ENTRY(__aeabi_llsr)
 
 	subs	r3, r2, #32
 	rsb	ip, r2, #32
diff --git a/arch/arm/lib/muldi3.S b/arch/arm/lib/muldi3.S
index c7fbdf00531..72d594184b8 100644
--- a/arch/arm/lib/muldi3.S
+++ b/arch/arm/lib/muldi3.S
@@ -25,6 +25,7 @@
 #endif
 
 ENTRY(__muldi3)
+ENTRY(__aeabi_lmul)
 
 	mul	xh, yl, xh
 	mla	xh, xl, yh, xh
diff --git a/arch/arm/lib/ucmpdi2.S b/arch/arm/lib/ucmpdi2.S
index 112630f93e5..d847a62834c 100644
--- a/arch/arm/lib/ucmpdi2.S
+++ b/arch/arm/lib/ucmpdi2.S
@@ -10,6 +10,7 @@
  *  published by the Free Software Foundation.
  */
 
+#include <linux/config.h>
 #include <linux/linkage.h>
 
 #ifdef __ARMEB__
@@ -33,3 +34,16 @@ ENTRY(__ucmpdi2)
 	movhi	r0, #2
 	mov	pc, lr
 
+#ifdef CONFIG_AEABI
+
+ENTRY(__aeabi_ulcmp)
+
+	cmp	xh, yh
+	cmpeq	xl, yl
+	movlo	r0, #-1
+	moveq	r0, #0
+	movhi	r0, #1
+	mov	pc, lr
+
+#endif
+
-- 
cgit v1.2.3


From 3f2829a31573e3e502b874c8d69a765f7a778793 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:31:29 +0000
Subject: [ARM] 3105/4: ARM EABI: new syscall entry convention

Patch from Nicolas Pitre

For a while we wanted to change the way syscalls were called on ARM.
Instead of encoding the syscall number in the swi instruction which
requires reading back the instruction from memory to extract that number
and polluting the data cache, it was decided that simply storing the
syscall number into r7 would be more efficient. Since this represents
an ABI change then making that change at the same time as EABI support
is the right thing to do.

It is now expected that EABI user space binaries put the syscall number
into r7 and use "swi 0" to call the kernel. Syscall register argument
are also expected to have "EABI arrangement" i.e. 64-bit arguments
should be put in a pair of registers from an even register number.

Example with long ftruncate64(unsigned int fd, loff_t length):

	legacy ABI:
	- put fd into r0
	- put length into r1-r2
	- use "swi #(0x900000 + 194)" to call the kernel

	new ARM EABI:
	- put fd into r0
	- put length into r2-r3 (skipping over r1)
	- put 194 into r7
	- use "swi 0" to call the kernel

Note that it is important to use 0 for the swi argument as backward
compatibility with legacy ABI user space relies on this.
The syscall macros in asm-arm/unistd.h were also updated to support
both ABIs and implement the right call method automatically.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/entry-common.S | 35 +++++++++++++++++++++--------------
 arch/arm/kernel/traps.c        |  2 +-
 2 files changed, 22 insertions(+), 15 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index e2b42997ad3..34826bcceb7 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -98,20 +98,14 @@ ENTRY(ret_from_fork)
 	   run on an ARM7 and we can save a couple of instructions.  
 								--pb */
 #ifdef CONFIG_CPU_ARM710
-	.macro	arm710_bug_check, instr, temp
-	and	\temp, \instr, #0x0f000000	@ check for SWI
-	teq	\temp, #0x0f000000
-	bne	.Larm700bug
-	.endm
-
-.Larm700bug:
+#define A710(code...) code
+.Larm710bug:
 	ldmia	sp, {r0 - lr}^			@ Get calling r0 - lr
 	mov	r0, r0
 	add	sp, sp, #S_FRAME_SIZE
 	subs	pc, lr, #4
 #else
-	.macro	arm710_bug_check, instr, temp
-	.endm
+#define A710(code...)
 #endif
 
 	.align	5
@@ -129,14 +123,24 @@ ENTRY(vector_swi)
 	/*
 	 * Get the system call number.
 	 */
-#ifdef CONFIG_ARM_THUMB
+#if defined(CONFIG_AEABI)
+
+	@ syscall number is in scno (r7) already.
+
+  A710(	ldr	ip, [lr, #-4]			@ get SWI instruction	)
+  A710(	and	ip, ip, #0x0f000000		@ check for SWI		)
+  A710(	teq	ip, #0x0f000000						)
+  A710(	bne	.Larm710bug						)
+#elif defined(CONFIG_ARM_THUMB)
 	tst	r8, #PSR_T_BIT			@ this is SPSR from save_user_regs
 	addne	scno, r7, #__NR_SYSCALL_BASE	@ put OS number in
 	ldreq	scno, [lr, #-4]
 #else
 	ldr	scno, [lr, #-4]			@ get SWI instruction
+  A710(	and	ip, scno, #0x0f000000		@ check for SWI		)
+  A710(	teq	ip, #0x0f000000						)
+  A710(	bne	.Larm710bug						)
 #endif
-	arm710_bug_check scno, ip
 
 #ifdef CONFIG_ALIGNMENT_TRAP
 	ldr	ip, __cr_alignment
@@ -145,18 +149,19 @@ ENTRY(vector_swi)
 #endif
 	enable_irq
 
-	stmdb	sp!, {r4, r5}			@ push fifth and sixth args
-
 	get_thread_info tsk
 	ldr	ip, [tsk, #TI_FLAGS]		@ check for syscall tracing
+#ifndef CONFIG_AEABI
 	bic	scno, scno, #0xff000000		@ mask off SWI op-code
 	eor	scno, scno, #__NR_SYSCALL_BASE	@ check OS number
+#endif
 	adr	tbl, sys_call_table		@ load syscall table pointer
+	stmdb	sp!, {r4, r5}			@ push fifth and sixth args
 	tst	ip, #_TIF_SYSCALL_TRACE		@ are we tracing syscalls?
 	bne	__sys_trace
 
-	adr	lr, ret_fast_syscall		@ return address
 	cmp	scno, #NR_syscalls		@ check upper syscall limit
+	adr	lr, ret_fast_syscall		@ return address
 	ldrcc	pc, [tbl, scno, lsl #2]		@ call sys_* routine
 
 	add	r1, sp, #S_OFF
@@ -207,6 +212,7 @@ ENTRY(sys_call_table)
 @ r8 = syscall table
 		.type	sys_syscall, #function
 sys_syscall:
+#ifndef CONFIG_AEABI
 		eor	scno, r0, #__NR_SYSCALL_BASE
 		cmp	scno, #__NR_syscall - __NR_SYSCALL_BASE
 		cmpne	scno, #NR_syscalls	@ check range
@@ -216,6 +222,7 @@ sys_syscall:
 		movlo	r2, r3
 		movlo	r3, r4
 		ldrlo	pc, [tbl, scno, lsl #2]
+#endif
 		b	sys_ni_syscall
 
 sys_fork_wrapper:
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 93cfd3ffcc7..10235b01582 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -404,7 +404,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
 	struct thread_info *thread = current_thread_info();
 	siginfo_t info;
 
-	if ((no >> 16) != 0x9f)
+	if ((no >> 16) != (__ARM_NR_BASE>> 16))
 		return bad_syscall(no, regs);
 
 	switch (no & 0xffff) {
-- 
cgit v1.2.3


From 704bdda03827db8a551e82b312037d63ba3c22ff Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:33:50 +0000
Subject: [ARM] 3107/3: ARM EABI: last bits to configure it

Patch from Nicolas Pitre

This adds the configuration option, and disables any FPA floating point
emulators which are not EABI compatible.

It also disables Acorn RISC OS/Arthur binary support when CONFIG_EABI=y
since it is incompatible with an EABI kernel.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig  | 19 ++++++++++++++++++-
 arch/arm/Makefile |  7 ++++++-
 2 files changed, 24 insertions(+), 2 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c4d585e2de7..ead6172692d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -401,6 +401,21 @@ config NO_IDLE_HZ
 	  Currently at least OMAP, PXA2xx and SA11x0 platforms are known
 	  to have accurate timekeeping with dynamic tick.
 
+config AEABI
+	bool "Use the ARM EABI to compile the kernel"
+	help
+	  This option allows for the kernel to be compiled using the latest
+	  ARM ABI (aka EABI).  This is only useful if you are using a user
+	  space environment that is also compiled with EABI.
+
+	  Since there are major incompatibilities between the legacy ABI and
+	  EABI, especially with regard to structure member alignment, this
+	  option also changes the kernel syscall calling convention to
+	  disambiguate both ABIs and allow for backward compatibility support
+	  (selected with CONFIG_OABI_COMPAT).
+
+	  To use this you need GCC version 4.0.0 or later.
+
 config ARCH_DISCONTIGMEM_ENABLE
 	bool
 	default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
@@ -587,6 +602,7 @@ comment "At least one emulation must be selected"
 
 config FPE_NWFPE
 	bool "NWFPE math emulation"
+	depends on !AEABI
 	---help---
 	  Say Y to include the NWFPE floating point emulator in the kernel.
 	  This is necessary to run most binaries. Linux does not currently
@@ -610,7 +626,7 @@ config FPE_NWFPE_XP
 
 config FPE_FASTFPE
 	bool "FastFPE math emulation (EXPERIMENTAL)"
-	depends on !CPU_32v3 && EXPERIMENTAL
+	depends on !AEABI && !CPU_32v3 && EXPERIMENTAL
 	---help---
 	  Say Y here to include the FAST floating point emulator in the kernel.
 	  This is an experimental much faster emulator which now also has full
@@ -642,6 +658,7 @@ source "fs/Kconfig.binfmt"
 
 config ARTHUR
 	tristate "RISC OS personality"
+	depends on !AEABI
 	help
 	  Say Y here to include the kernel code necessary if you want to run
 	  Acorn RISC OS/Arthur binaries under Linux. This code is still very
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 1fa2a101158..fbfc14a56b9 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -56,8 +56,13 @@ tune-$(CONFIG_CPU_SA1100)	:=-mtune=strongarm1100
 tune-$(CONFIG_CPU_XSCALE)	:=$(call cc-option,-mtune=xscale,-mtune=strongarm110) -Wa,-mcpu=xscale
 tune-$(CONFIG_CPU_V6)		:=$(call cc-option,-mtune=arm1136j-s,-mtune=strongarm)
 
-# Need -Uarm for gcc < 3.x
+ifeq ($(CONFIG_AEABI),y)
+CFLAGS_ABI	:=-mabi=aapcs -mno-thumb-interwork
+else
 CFLAGS_ABI	:=$(call cc-option,-mapcs-32,-mabi=apcs-gnu) $(call cc-option,-mno-thumb-interwork,)
+endif
+
+# Need -Uarm for gcc < 3.x
 CFLAGS		+=$(CFLAGS_ABI) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
 AFLAGS		+=$(CFLAGS_ABI) $(arch-y) $(tune-y) -msoft-float
 
-- 
cgit v1.2.3


From 713c481519f19df9e6d90f257e7da0336b057592 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:35:03 +0000
Subject: [ARM] 3108/2: old ABI compat: statfs64 and fstatfs64

Patch from Nicolas Pitre

struct statfs64 has extra padding with EABI growing its size from 84 to
88. This struct is now __attribute__((packed,aligned(4))) with a small
assembly wrapper to force the sz argument to 84 if it is 88 to avoid
copying the extra padding over user space memory unexpecting it.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/calls.S        |  4 ++--
 arch/arm/kernel/entry-common.S | 10 ++++++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 55076a75e5b..8c0bf04814b 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -280,8 +280,8 @@ __syscall_start:
 		.long	sys_clock_gettime
 		.long	sys_clock_getres
 /* 265 */	.long	sys_clock_nanosleep
-		.long	sys_statfs64
-		.long	sys_fstatfs64
+		.long	sys_statfs64_wrapper
+		.long	sys_fstatfs64_wrapper
 		.long	sys_tgkill
 		.long	sys_utimes
 /* 270 */	.long	sys_arm_fadvise64_64
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 34826bcceb7..ee63ee78d84 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -262,6 +262,16 @@ sys_sigaltstack_wrapper:
 		ldr	r2, [sp, #S_OFF + S_SP]
 		b	do_sigaltstack
 
+sys_statfs64_wrapper:
+		teq	r1, #88
+		moveq	r1, #84
+		b	sys_statfs64
+
+sys_fstatfs64_wrapper:
+		teq	r1, #88
+		moveq	r1, #84
+		b	sys_fstatfs64
+
 /*
  * Note: off_4k (r5) is always units of 4K.  If we can't do the requested
  * offset, we return EINVAL.
-- 
cgit v1.2.3


From 687ad0191488a067b3b3cc94f670cc21f93811e1 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:35:31 +0000
Subject: [ARM] 3109/1: old ABI compat: syscall wrappers for ABI impedance
 matching

Patch from Nicolas Pitre

The difference between EABI and the legacy ABI may affect either
structure member alignment and/or argument register selection.

The patch has the details.

Included are wrappers for the following syscalls:

  sys_stat64
  sys_lstat64
  sys_fstat64
  sys_fcntl64
  sys_epoll_ctl
  sys_epoll_wait
  sys_ipc
  sys_semop
  sys_semtimedop
  sys_pread64
  sys_pwrite64
  sys_truncate64
  sys_ftruncate64
  sys_readahead

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/Makefile          |   1 +
 arch/arm/kernel/entry-common.S    |  32 ++++
 arch/arm/kernel/sys_oabi-compat.c | 339 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 372 insertions(+)
 create mode 100644 arch/arm/kernel/sys_oabi-compat.c

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index de94b0f3ee2..2ce0e3a27a4 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_ARTHUR)		+= arthur.o
 obj-$(CONFIG_ISA_DMA)		+= dma-isa.o
 obj-$(CONFIG_PCI)		+= bios32.o
 obj-$(CONFIG_SMP)		+= smp.o
+obj-$(CONFIG_OABI_COMPAT)	+= sys_oabi-compat.o
 
 obj-$(CONFIG_IWMMXT)		+= iwmmxt.o
 AFLAGS_iwmmxt.o			:= -Wa,-mcpu=iwmmxt
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index ee63ee78d84..59ce1bcec42 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -288,3 +288,35 @@ sys_mmap2:
 		str	r5, [sp, #4]
 		b	do_mmap2
 #endif
+
+#ifdef CONFIG_OABI_COMPAT
+/*
+ * These are syscalls with argument register differences
+ */
+
+sys_oabi_pread64:
+		stmia	sp, {r3, r4}
+		b	sys_pread64
+
+sys_oabi_pwrite64:
+		stmia	sp, {r3, r4}
+		b	sys_pwrite64
+
+sys_oabi_truncate64:
+		mov	r3, r2
+		mov	r2, r1
+		b	sys_truncate64
+
+sys_oabi_ftruncate64:
+		mov	r3, r2
+		mov	r2, r1
+		b	sys_ftruncate64
+
+sys_oabi_readahead:
+		str	r3, [sp]
+		mov	r3, r2
+		mov	r2, r1
+		b	sys_readahead
+
+#endif
+
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c
new file mode 100644
index 00000000000..eafa8e5284a
--- /dev/null
+++ b/arch/arm/kernel/sys_oabi-compat.c
@@ -0,0 +1,339 @@
+/*
+ *  arch/arm/kernel/sys_oabi-compat.c
+ *
+ *  Compatibility wrappers for syscalls that are used from
+ *  old ABI user space binaries with an EABI kernel.
+ *
+ *  Author:	Nicolas Pitre
+ *  Created:	Oct 7, 2005
+ *  Copyright:	MontaVista Software, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+/*
+ * The legacy ABI and the new ARM EABI have different rules making some
+ * syscalls incompatible especially with structure arguments.
+ * Most notably, Eabi says 64-bit members should be 64-bit aligned instead of
+ * simply word aligned.  EABI also pads structures to the size of the largest
+ * member it contains instead of the invariant 32-bit.
+ *
+ * The following syscalls are affected:
+ *
+ * sys_stat64:
+ * sys_lstat64:
+ * sys_fstat64:
+ *
+ *   struct stat64 has different sizes and some members are shifted
+ *   Compatibility wrappers are needed for them and provided below.
+ *
+ * sys_fcntl64:
+ *
+ *   struct flock64 has different sizes and some members are shifted
+ *   A compatibility wrapper is needed and provided below.
+ *
+ * sys_statfs64:
+ * sys_fstatfs64:
+ *
+ *   struct statfs64 has extra padding with EABI growing its size from
+ *   84 to 88.  This struct is now __attribute__((packed,aligned(4)))
+ *   with a small assembly wrapper to force the sz argument to 84 if it is 88
+ *   to avoid copying the extra padding over user space unexpecting it.
+ *
+ * sys_newuname:
+ *
+ *   struct new_utsname has no padding with EABI.  No problem there.
+ *
+ * sys_epoll_ctl:
+ * sys_epoll_wait:
+ *
+ *   struct epoll_event has its second member shifted also affecting the
+ *   structure size. Compatibility wrappers are needed and provided below.
+ *
+ * sys_ipc:
+ * sys_semop:
+ * sys_semtimedop:
+ *
+ *   struct sembuf loses its padding with EABI.  Since arrays of them are
+ *   used they have to be copyed to remove the padding. Compatibility wrappers
+ *   provided below.
+ */
+
+#include <linux/syscalls.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/fcntl.h>
+#include <linux/eventpoll.h>
+#include <linux/sem.h>
+#include <asm/ipc.h>
+#include <asm/uaccess.h>
+
+struct oldabi_stat64 {
+	unsigned long long st_dev;
+	unsigned int	__pad1;
+	unsigned long	__st_ino;
+	unsigned int	st_mode;
+	unsigned int	st_nlink;
+
+	unsigned long	st_uid;
+	unsigned long	st_gid;
+
+	unsigned long long st_rdev;
+	unsigned int	__pad2;
+
+	long long	st_size;
+	unsigned long	st_blksize;
+	unsigned long long st_blocks;
+
+	unsigned long	st_atime;
+	unsigned long	st_atime_nsec;
+
+	unsigned long	st_mtime;
+	unsigned long	st_mtime_nsec;
+
+	unsigned long	st_ctime;
+	unsigned long	st_ctime_nsec;
+
+	unsigned long long st_ino;
+} __attribute__ ((packed,aligned(4)));
+
+static long cp_oldabi_stat64(struct kstat *stat,
+			     struct oldabi_stat64 __user *statbuf)
+{
+	struct oldabi_stat64 tmp;
+
+	tmp.st_dev = huge_encode_dev(stat->dev);
+	tmp.__pad1 = 0;
+	tmp.__st_ino = stat->ino;
+	tmp.st_mode = stat->mode;
+	tmp.st_nlink = stat->nlink;
+	tmp.st_uid = stat->uid;
+	tmp.st_gid = stat->gid;
+	tmp.st_rdev = huge_encode_dev(stat->rdev);
+	tmp.st_size = stat->size;
+	tmp.st_blocks = stat->blocks;
+	tmp.__pad2 = 0;
+	tmp.st_blksize = stat->blksize;
+	tmp.st_atime = stat->atime.tv_sec;
+	tmp.st_atime_nsec = stat->atime.tv_nsec;
+	tmp.st_mtime = stat->mtime.tv_sec;
+	tmp.st_mtime_nsec = stat->mtime.tv_nsec;
+	tmp.st_ctime = stat->ctime.tv_sec;
+	tmp.st_ctime_nsec = stat->ctime.tv_nsec;
+	tmp.st_ino = stat->ino;
+	return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
+}
+
+asmlinkage long sys_oabi_stat64(char __user * filename,
+				struct oldabi_stat64 __user * statbuf)
+{
+	struct kstat stat;
+	int error = vfs_stat(filename, &stat);
+	if (!error)
+		error = cp_oldabi_stat64(&stat, statbuf);
+	return error;
+}
+
+asmlinkage long sys_oabi_lstat64(char __user * filename,
+				 struct oldabi_stat64 __user * statbuf)
+{
+	struct kstat stat;
+	int error = vfs_lstat(filename, &stat);
+	if (!error)
+		error = cp_oldabi_stat64(&stat, statbuf);
+	return error;
+}
+
+asmlinkage long sys_oabi_fstat64(unsigned long fd,
+				 struct oldabi_stat64 __user * statbuf)
+{
+	struct kstat stat;
+	int error = vfs_fstat(fd, &stat);
+	if (!error)
+		error = cp_oldabi_stat64(&stat, statbuf);
+	return error;
+}
+
+struct oabi_flock64 {
+	short	l_type;
+	short	l_whence;
+	loff_t	l_start;
+	loff_t	l_len;
+	pid_t	l_pid;
+} __attribute__ ((packed,aligned(4)));
+
+asmlinkage long sys_oabi_fcntl64(unsigned int fd, unsigned int cmd,
+				 unsigned long arg)
+{
+	struct oabi_flock64 user;
+	struct flock64 kernel;
+	mm_segment_t fs = USER_DS; /* initialized to kill a warning */
+	unsigned long local_arg = arg;
+	int ret;
+
+	switch (cmd) {
+	case F_GETLK64:
+	case F_SETLK64:
+	case F_SETLKW64:
+		if (copy_from_user(&user, (struct oabi_flock64 __user *)arg,
+				   sizeof(user)))
+			return -EFAULT;
+		kernel.l_type	= user.l_type;
+		kernel.l_whence	= user.l_whence;
+		kernel.l_start	= user.l_start;
+		kernel.l_len	= user.l_len;
+		kernel.l_pid	= user.l_pid;
+		local_arg = (unsigned long)&kernel;
+		fs = get_fs();
+		set_fs(KERNEL_DS);
+	}
+
+	ret = sys_fcntl64(fd, cmd, local_arg);
+
+	switch (cmd) {
+	case F_GETLK64:
+		if (!ret) {
+			user.l_type	= kernel.l_type;
+			user.l_whence	= kernel.l_whence;
+			user.l_start	= kernel.l_start;
+			user.l_len	= kernel.l_len;
+			user.l_pid	= kernel.l_pid;
+			if (copy_to_user((struct oabi_flock64 __user *)arg,
+					 &user, sizeof(user)))
+				ret = -EFAULT;
+		}
+	case F_SETLK64:
+	case F_SETLKW64:
+		set_fs(fs);
+	}
+
+	return ret;
+}
+
+struct oabi_epoll_event {
+	__u32 events;
+	__u64 data;
+} __attribute__ ((packed,aligned(4)));
+
+asmlinkage long sys_oabi_epoll_ctl(int epfd, int op, int fd,
+				   struct oabi_epoll_event __user *event)
+{
+	struct oabi_epoll_event user;
+	struct epoll_event kernel;
+	mm_segment_t fs;
+	long ret;
+
+	if (op == EPOLL_CTL_DEL)
+		return sys_epoll_ctl(epfd, op, fd, NULL);
+	if (copy_from_user(&user, event, sizeof(user)))
+		return -EFAULT;
+	kernel.events = user.events;
+	kernel.data   = user.data;
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = sys_epoll_ctl(epfd, op, fd, &kernel);
+	set_fs(fs);
+	return ret;
+}
+
+asmlinkage long sys_oabi_epoll_wait(int epfd,
+				    struct oabi_epoll_event __user *events,
+				    int maxevents, int timeout)
+{
+	struct epoll_event *kbuf;
+	mm_segment_t fs;
+	long ret, err, i;
+
+	if (maxevents <= 0 || maxevents > (INT_MAX/sizeof(struct epoll_event)))
+		return -EINVAL;
+	kbuf = kmalloc(sizeof(*kbuf) * maxevents, GFP_KERNEL);
+	if (!kbuf)
+		return -ENOMEM;
+	fs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = sys_epoll_wait(epfd, kbuf, maxevents, timeout);
+	set_fs(fs);
+	err = 0;
+	for (i = 0; i < ret; i++) {
+		__put_user_error(kbuf[i].events, &events->events, err);
+		__put_user_error(kbuf[i].data,   &events->data,   err);
+		events++;
+	}
+	kfree(kbuf);
+	return err ? -EFAULT : ret;
+}
+
+struct oabi_sembuf {
+	unsigned short	sem_num;
+	short		sem_op;
+	short		sem_flg;
+	unsigned short	__pad;
+};
+
+asmlinkage long sys_oabi_semtimedop(int semid,
+				    struct oabi_sembuf __user *tsops,
+				    unsigned nsops,
+				    const struct timespec __user *timeout)
+{
+	struct sembuf *sops;
+	struct timespec local_timeout;
+	long err;
+	int i;
+
+	if (nsops < 1)
+		return -EINVAL;
+	sops = kmalloc(sizeof(*sops) * nsops, GFP_KERNEL);
+	if (!sops)
+		return -ENOMEM;
+	err = 0;
+	for (i = 0; i < nsops; i++) {
+		__get_user_error(sops[i].sem_num, &tsops->sem_num, err);
+		__get_user_error(sops[i].sem_op,  &tsops->sem_op,  err);
+		__get_user_error(sops[i].sem_flg, &tsops->sem_flg, err);
+		tsops++;
+	}
+	if (timeout) {
+		/* copy this as well before changing domain protection */
+		err |= copy_from_user(&local_timeout, timeout, sizeof(*timeout));
+		timeout = &local_timeout;
+	}
+	if (err) {
+		err = -EFAULT;
+	} else {
+		mm_segment_t fs = get_fs();
+		set_fs(KERNEL_DS);
+		err = sys_semtimedop(semid, sops, nsops, timeout);
+		set_fs(fs);
+	}
+	kfree(sops);
+	return err;
+}
+
+asmlinkage long sys_oabi_semop(int semid, struct oabi_sembuf __user *tsops,
+			       unsigned nsops)
+{
+	return sys_oabi_semtimedop(semid, tsops, nsops, NULL);
+}
+
+extern asmlinkage int sys_ipc(uint call, int first, int second, int third,
+			      void __user *ptr, long fifth);
+
+asmlinkage int sys_oabi_ipc(uint call, int first, int second, int third,
+			    void __user *ptr, long fifth)
+{
+	switch (call & 0xffff) {
+	case SEMOP:
+		return  sys_oabi_semtimedop(first,
+					    (struct oabi_sembuf __user *)ptr,
+					    second, NULL);
+	case SEMTIMEDOP:
+		return  sys_oabi_semtimedop(first,
+					    (struct oabi_sembuf __user *)ptr,
+					    second,
+					    (const struct timespec __user *)fifth);
+	default:
+		return sys_ipc(call, first, second, third, ptr, fifth);
+	}
+}
-- 
cgit v1.2.3


From dd35afc22b76766e827c9e67ebc4b7bf6e31ecab Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:36:12 +0000
Subject: [ARM] 3110/5: old ABI compat: multi-ABI syscall entry support

Patch from Nicolas Pitre

This patch adds the required code to support both user space ABIs at
the same time. A second syscall table is created to include legacy ABI
syscalls that need an ABI compat wrapper.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/calls.S        | 55 +++++++++++++++--------------
 arch/arm/kernel/entry-common.S | 78 ++++++++++++++++++++++++++++++++++++++----
 arch/arm/kernel/sys_arm.c      |  2 ++
 3 files changed, 100 insertions(+), 35 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 8c0bf04814b..75e6f9a9471 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -13,7 +13,7 @@
 #define NR_syscalls 328
 #else
 
-__syscall_start:
+100:
 /* 0 */		.long	sys_restart_syscall
 		.long	sys_exit
 		.long	sys_fork_wrapper
@@ -27,7 +27,7 @@ __syscall_start:
 /* 10 */	.long	sys_unlink
 		.long	sys_execve_wrapper
 		.long	sys_chdir
-		.long	sys_time		/* used by libc4 */
+		.long	OBSOLETE(sys_time)	/* used by libc4 */
 		.long	sys_mknod
 /* 15 */	.long	sys_chmod
 		.long	sys_lchown16
@@ -36,15 +36,15 @@ __syscall_start:
 		.long	sys_lseek
 /* 20 */	.long	sys_getpid
 		.long	sys_mount
-		.long	sys_oldumount		/* used by libc4 */
+		.long	OBSOLETE(sys_oldumount)	/* used by libc4 */
 		.long	sys_setuid16
 		.long	sys_getuid16
-/* 25 */	.long	sys_stime
+/* 25 */	.long	OBSOLETE(sys_stime)
 		.long	sys_ptrace
-		.long	sys_alarm		/* used by libc4 */
+		.long	OBSOLETE(sys_alarm)	/* used by libc4 */
 		.long	sys_ni_syscall		/* was sys_fstat */
 		.long	sys_pause
-/* 30 */	.long	sys_utime		/* used by libc4 */
+/* 30 */	.long	OBSOLETE(sys_utime)	/* used by libc4 */
 		.long	sys_ni_syscall		/* was sys_stty */
 		.long	sys_ni_syscall		/* was sys_getty */
 		.long	sys_access
@@ -90,21 +90,21 @@ __syscall_start:
 		.long	sys_sigpending
 		.long	sys_sethostname
 /* 75 */	.long	sys_setrlimit
-		.long	sys_old_getrlimit	/* used by libc4 */
+		.long	OBSOLETE(sys_old_getrlimit) /* used by libc4 */
 		.long	sys_getrusage
 		.long	sys_gettimeofday
 		.long	sys_settimeofday
 /* 80 */	.long	sys_getgroups16
 		.long	sys_setgroups16
-		.long	old_select		/* used by libc4 */
+		.long	OBSOLETE(old_select)	/* used by libc4 */
 		.long	sys_symlink
 		.long	sys_ni_syscall		/* was sys_lstat */
 /* 85 */	.long	sys_readlink
 		.long	sys_uselib
 		.long	sys_swapon
 		.long	sys_reboot
-		.long	old_readdir		/* used by libc4 */
-/* 90 */	.long	old_mmap		/* used by libc4 */
+		.long	OBSOLETE(old_readdir)	/* used by libc4 */
+/* 90 */	.long	OBSOLETE(old_mmap)	/* used by libc4 */
 		.long	sys_munmap
 		.long	sys_truncate
 		.long	sys_ftruncate
@@ -116,7 +116,7 @@ __syscall_start:
 		.long	sys_statfs
 /* 100 */	.long	sys_fstatfs
 		.long	sys_ni_syscall
-		.long	sys_socketcall
+		.long	OBSOLETE(sys_socketcall)
 		.long	sys_syslog
 		.long	sys_setitimer
 /* 105 */	.long	sys_getitimer
@@ -127,11 +127,11 @@ __syscall_start:
 /* 110 */	.long	sys_ni_syscall		/* was sys_iopl */
 		.long	sys_vhangup
 		.long	sys_ni_syscall
-		.long	sys_syscall		/* call a syscall */
+		.long	OBSOLETE(sys_syscall)	/* call a syscall */
 		.long	sys_wait4
 /* 115 */	.long	sys_swapoff
 		.long	sys_sysinfo
-		.long	sys_ipc
+		.long	OBSOLETE(ABI(sys_ipc, sys_oabi_ipc))
 		.long	sys_fsync
 		.long	sys_sigreturn_wrapper
 /* 120 */	.long	sys_clone_wrapper
@@ -194,8 +194,8 @@ __syscall_start:
 		.long	sys_rt_sigtimedwait
 		.long	sys_rt_sigqueueinfo
 		.long	sys_rt_sigsuspend_wrapper
-/* 180 */	.long	sys_pread64
-		.long	sys_pwrite64
+/* 180 */	.long	ABI(sys_pread64, sys_oabi_pread64)
+		.long	ABI(sys_pwrite64, sys_oabi_pwrite64)
 		.long	sys_chown16
 		.long	sys_getcwd
 		.long	sys_capget
@@ -207,11 +207,11 @@ __syscall_start:
 /* 190 */	.long	sys_vfork_wrapper
 		.long	sys_getrlimit
 		.long	sys_mmap2
-		.long	sys_truncate64
-		.long	sys_ftruncate64
-/* 195 */	.long	sys_stat64
-		.long	sys_lstat64
-		.long	sys_fstat64
+		.long	ABI(sys_truncate64, sys_oabi_truncate64)
+		.long	ABI(sys_ftruncate64, sys_oabi_ftruncate64)
+/* 195 */	.long	ABI(sys_stat64, sys_oabi_stat64)
+		.long	ABI(sys_lstat64, sys_oabi_lstat64)
+		.long	ABI(sys_fstat64, sys_oabi_fstat64)
 		.long	sys_lchown
 		.long	sys_getuid
 /* 200 */	.long	sys_getgid
@@ -235,11 +235,11 @@ __syscall_start:
 		.long	sys_pivot_root
 		.long	sys_mincore
 /* 220 */	.long	sys_madvise
-		.long	sys_fcntl64
+		.long	ABI(sys_fcntl64, sys_oabi_fcntl64)
 		.long	sys_ni_syscall /* TUX */
 		.long	sys_ni_syscall
 		.long	sys_gettid
-/* 225 */	.long	sys_readahead
+/* 225 */	.long	ABI(sys_readahead, sys_oabi_readahead)
 		.long	sys_setxattr
 		.long	sys_lsetxattr
 		.long	sys_fsetxattr
@@ -265,8 +265,8 @@ __syscall_start:
 		.long	sys_exit_group
 		.long	sys_lookup_dcookie
 /* 250 */	.long	sys_epoll_create
-		.long	sys_epoll_ctl
-		.long	sys_epoll_wait
+		.long	ABI(sys_epoll_ctl, sys_oabi_epoll_ctl)
+		.long	ABI(sys_epoll_wait, sys_oabi_epoll_wait)
 	 	.long	sys_remap_file_pages
 		.long	sys_ni_syscall	/* sys_set_thread_area */
 /* 255 */	.long	sys_ni_syscall	/* sys_get_thread_area */
@@ -312,7 +312,7 @@ __syscall_start:
 /* 295 */	.long	sys_getsockopt
 		.long	sys_sendmsg
 		.long	sys_recvmsg
-		.long	sys_semop
+		.long	ABI(sys_semop, sys_oabi_semop)
 		.long	sys_semget
 /* 300 */	.long	sys_semctl
 		.long	sys_msgsnd
@@ -326,7 +326,7 @@ __syscall_start:
 		.long	sys_add_key
 /* 310 */	.long	sys_request_key
 		.long	sys_keyctl
-		.long	sys_semtimedop
+		.long	ABI(sys_semtimedop, sys_oabi_semtimedop)
 /* vserver */	.long	sys_ni_syscall
 		.long	sys_ioprio_set
 /* 315 */	.long	sys_ioprio_get
@@ -336,9 +336,8 @@ __syscall_start:
 		.long	sys_mbind
 /* 320 */	.long	sys_get_mempolicy
 		.long	sys_set_mempolicy
-__syscall_end:
 
-		.rept	NR_syscalls - (__syscall_end - __syscall_start) / 4
+		.rept	NR_syscalls - (. - 100b) / 4
 			.long	sys_ni_syscall
 		.endr
 #endif
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 59ce1bcec42..8826d9803ae 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -123,23 +123,49 @@ ENTRY(vector_swi)
 	/*
 	 * Get the system call number.
 	 */
-#if defined(CONFIG_AEABI)
 
-	@ syscall number is in scno (r7) already.
+#if defined(CONFIG_OABI_COMPAT)
 
+	/*
+	 * If we have CONFIG_OABI_COMPAT then we need to look at the swi
+	 * value to determine if it is an EABI or an old ABI call.
+	 */
+#ifdef CONFIG_ARM_THUMB
+	tst	r8, #PSR_T_BIT
+	movne	r10, #0				@ no thumb OABI emulation
+	ldreq	r10, [lr, #-4]			@ get SWI instruction
+#else
+	ldr	r10, [lr, #-4]			@ get SWI instruction
+  A710(	and	ip, r10, #0x0f000000		@ check for SWI		)
+  A710(	teq	ip, #0x0f000000						)
+  A710(	bne	.Larm710bug						)
+#endif
+
+#elif defined(CONFIG_AEABI)
+
+	/*
+	 * Pure EABI user space always put syscall number into scno (r7).
+	 */
   A710(	ldr	ip, [lr, #-4]			@ get SWI instruction	)
   A710(	and	ip, ip, #0x0f000000		@ check for SWI		)
   A710(	teq	ip, #0x0f000000						)
   A710(	bne	.Larm710bug						)
+
 #elif defined(CONFIG_ARM_THUMB)
+
+	/* Legacy ABI only, possibly thumb mode. */
 	tst	r8, #PSR_T_BIT			@ this is SPSR from save_user_regs
 	addne	scno, r7, #__NR_SYSCALL_BASE	@ put OS number in
 	ldreq	scno, [lr, #-4]
+
 #else
+
+	/* Legacy ABI only. */
 	ldr	scno, [lr, #-4]			@ get SWI instruction
   A710(	and	ip, scno, #0x0f000000		@ check for SWI		)
   A710(	teq	ip, #0x0f000000						)
   A710(	bne	.Larm710bug						)
+
 #endif
 
 #ifdef CONFIG_ALIGNMENT_TRAP
@@ -150,12 +176,24 @@ ENTRY(vector_swi)
 	enable_irq
 
 	get_thread_info tsk
+	adr	tbl, sys_call_table		@ load syscall table pointer
 	ldr	ip, [tsk, #TI_FLAGS]		@ check for syscall tracing
-#ifndef CONFIG_AEABI
+
+#if defined(CONFIG_OABI_COMPAT)
+	/*
+	 * If the swi argument is zero, this is an EABI call and we do nothing.
+	 *
+	 * If this is an old ABI call, get the syscall number into scno and
+	 * get the old ABI syscall table address.
+	 */
+	bics	r10, r10, #0xff000000
+	eorne	scno, r10, #__NR_OABI_SYSCALL_BASE
+	ldrne	tbl, =sys_oabi_call_table
+#elif !defined(CONFIG_AEABI)
 	bic	scno, scno, #0xff000000		@ mask off SWI op-code
 	eor	scno, scno, #__NR_SYSCALL_BASE	@ check OS number
 #endif
-	adr	tbl, sys_call_table		@ load syscall table pointer
+
 	stmdb	sp!, {r4, r5}			@ push fifth and sixth args
 	tst	ip, #_TIF_SYSCALL_TRACE		@ are we tracing syscalls?
 	bne	__sys_trace
@@ -199,11 +237,25 @@ __sys_trace_return:
 	.type	__cr_alignment, #object
 __cr_alignment:
 	.word	cr_alignment
+#endif
+	.ltorg
+
+/*
+ * This is the syscall table declaration for native ABI syscalls.
+ * With EABI a couple syscalls are obsolete and defined as sys_ni_syscall.
+ */
+#define ABI(native, compat) native
+#ifdef CONFIG_AEABI
+#define OBSOLETE(syscall) sys_ni_syscall
+#else
+#define OBSOLETE(syscall) syscall
 #endif
 
 	.type	sys_call_table, #object
 ENTRY(sys_call_table)
 #include "calls.S"
+#undef ABI
+#undef OBSOLETE
 
 /*============================================================================
  * Special system call wrappers
@@ -212,8 +264,7 @@ ENTRY(sys_call_table)
 @ r8 = syscall table
 		.type	sys_syscall, #function
 sys_syscall:
-#ifndef CONFIG_AEABI
-		eor	scno, r0, #__NR_SYSCALL_BASE
+		eor	scno, r0, #__NR_OABI_SYSCALL_BASE
 		cmp	scno, #__NR_syscall - __NR_SYSCALL_BASE
 		cmpne	scno, #NR_syscalls	@ check range
 		stmloia	sp, {r5, r6}		@ shuffle args
@@ -222,7 +273,6 @@ sys_syscall:
 		movlo	r2, r3
 		movlo	r3, r4
 		ldrlo	pc, [tbl, scno, lsl #2]
-#endif
 		b	sys_ni_syscall
 
 sys_fork_wrapper:
@@ -290,6 +340,7 @@ sys_mmap2:
 #endif
 
 #ifdef CONFIG_OABI_COMPAT
+
 /*
  * These are syscalls with argument register differences
  */
@@ -318,5 +369,18 @@ sys_oabi_readahead:
 		mov	r2, r1
 		b	sys_readahead
 
+/*
+ * Let's declare a second syscall table for old ABI binaries
+ * using the compatibility syscall entries.
+ */
+#define ABI(native, compat) compat
+#define OBSOLETE(syscall) syscall
+
+	.type	sys_oabi_call_table, #object
+ENTRY(sys_oabi_call_table)
+#include "calls.S"
+#undef ABI
+#undef OBSOLETE
+
 #endif
 
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index ea569ba482b..a491de2d902 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -147,6 +147,7 @@ asmlinkage int old_select(struct sel_arg_struct __user *arg)
 	return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp);
 }
 
+#if !defined(CONFIG_AEABI) || defined(CONFIG_OABI_COMPAT)
 /*
  * sys_ipc() is the de-multiplexer for the SysV IPC calls..
  *
@@ -226,6 +227,7 @@ asmlinkage int sys_ipc(uint call, int first, int second, int third,
 		return -ENOSYS;
 	}
 }
+#endif
 
 /* Fork a new task - this creates a new program thread.
  * This is called indirectly via a small wrapper
-- 
cgit v1.2.3


From 8993a44cede418940a4921de5dc24d52a9fe8767 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:36:50 +0000
Subject: [ARM] 3111/2: old ABI compat: adjust NWFPE to be operational within
 an EABI kernel

Patch from Nicolas Pitre

We need NWFPE if we want to support execution of legacy binaries with
an EABI kernel.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig       | 4 ++--
 arch/arm/nwfpe/fpa11.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ead6172692d..cb66b5745fa 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -602,7 +602,7 @@ comment "At least one emulation must be selected"
 
 config FPE_NWFPE
 	bool "NWFPE math emulation"
-	depends on !AEABI
+	depends on !AEABI || OABI_COMPAT
 	---help---
 	  Say Y to include the NWFPE floating point emulator in the kernel.
 	  This is necessary to run most binaries. Linux does not currently
@@ -626,7 +626,7 @@ config FPE_NWFPE_XP
 
 config FPE_FASTFPE
 	bool "FastFPE math emulation (EXPERIMENTAL)"
-	depends on !AEABI && !CPU_32v3 && EXPERIMENTAL
+	depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
 	---help---
 	  Say Y here to include the FAST floating point emulator in the kernel.
 	  This is an experimental much faster emulator which now also has full
diff --git a/arch/arm/nwfpe/fpa11.h b/arch/arm/nwfpe/fpa11.h
index da4c616b6c4..28cd79a451d 100644
--- a/arch/arm/nwfpe/fpa11.h
+++ b/arch/arm/nwfpe/fpa11.h
@@ -62,7 +62,7 @@ typedef union tagFPREG {
 #else
 	u32 padding[3];
 #endif
-} FPREG;
+} __attribute__ ((packed,aligned(4))) FPREG;
 
 /*
  * FPA11 device model.
@@ -89,7 +89,7 @@ typedef struct tagFPA11 {
 				   so we can use it to detect whether this
 				   instance of the emulator needs to be
 				   initialised. */
-} FPA11;
+} __attribute__ ((packed,aligned(4))) FPA11;
 
 extern int8 SetRoundingMode(const unsigned int);
 extern int8 SetRoundingPrecision(const unsigned int);
-- 
cgit v1.2.3


From 6c90c872017773cde70a51432cb28f253451b967 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 16:37:15 +0000
Subject: [ARM] 3112/1: old ABI compat: config option to turn it on

Patch from Nicolas Pitre

Enjoy !

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'arch/arm')

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index cb66b5745fa..006f09218ae 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -416,6 +416,23 @@ config AEABI
 
 	  To use this you need GCC version 4.0.0 or later.
 
+config OABI_COMPAT
+	bool "Allow old ABI binaries to run with this kernel"
+	depends on AEABI
+	default y
+	help
+	  This option preserves the old syscall interface along with the
+	  new (ARM EABI) one. It also provides a compatibility layer to
+	  intercept syscalls that have structure arguments which layout
+	  in memory differs between the legacy ABI and the new ARM EABI
+	  (only for non "thumb" binaries). This option adds a tiny
+	  overhead to all syscalls and produces a slightly larger kernel.
+	  If you know you'll be using only pure EABI user space then you
+	  can say N here. If this option is not selected and you attempt
+	  to execute a legacy ABI binary then the result will be
+	  UNPREDICTABLE (in fact it can be predicted that it won't work
+	  at all). If in doubt say Y.
+
 config ARCH_DISCONTIGMEM_ENABLE
 	bool
 	default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
-- 
cgit v1.2.3


From 3f471126ee53feb5e9b210ea2f525ed3bb9b7a7f Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nico@cam.org>
Date: Sat, 14 Jan 2006 19:30:04 +0000
Subject: [ARM] 3262/4: allow ptraced syscalls to be overriden

Patch from Nicolas Pitre

This is needed by strace to properly handle the tracing of some system
calls. It could be useful for other applications as well.

Based on an earlier patch from Daniel Jacobowitz.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Daniel Jacobowitz <dan@debian.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/entry-common.S |  3 +++
 arch/arm/kernel/ptrace.c       | 15 ++++++++++++---
 2 files changed, 15 insertions(+), 3 deletions(-)

(limited to 'arch/arm')

diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 8826d9803ae..2b92ce85f97 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -214,11 +214,13 @@ ENTRY(vector_swi)
 	 * context switches, and waiting for our parent to respond.
 	 */
 __sys_trace:
+	mov	r2, scno
 	add	r1, sp, #S_OFF
 	mov	r0, #0				@ trace entry [IP = 0]
 	bl	syscall_trace
 
 	adr	lr, __sys_trace_return		@ return address
+	mov	scno, r0			@ syscall number (possibly new)
 	add	r1, sp, #S_R0 + S_OFF		@ pointer to regs
 	cmp	scno, #NR_syscalls		@ check upper syscall limit
 	ldmccia	r1, {r0 - r3}			@ have to reload r0 - r3
@@ -227,6 +229,7 @@ __sys_trace:
 
 __sys_trace_return:
 	str	r0, [sp, #S_R0 + S_OFF]!	@ save returned r0
+	mov	r2, scno
 	mov	r1, sp
 	mov	r0, #1				@ trace exit [IP = 1]
 	bl	syscall_trace
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index e591f72bcde..7b6256bb590 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -766,6 +766,11 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 				       (unsigned long __user *) data);
 			break;
 
+		case PTRACE_SET_SYSCALL:
+			ret = 0;
+			child->ptrace_message = data;
+			break;
+
 		default:
 			ret = ptrace_request(child, request, addr, data);
 			break;
@@ -774,14 +779,14 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	return ret;
 }
 
-asmlinkage void syscall_trace(int why, struct pt_regs *regs)
+asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno)
 {
 	unsigned long ip;
 
 	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
+		return scno;
 	if (!(current->ptrace & PT_PTRACED))
-		return;
+		return scno;
 
 	/*
 	 * Save IP.  IP is used to denote syscall entry/exit:
@@ -790,6 +795,8 @@ asmlinkage void syscall_trace(int why, struct pt_regs *regs)
 	ip = regs->ARM_ip;
 	regs->ARM_ip = why;
 
+	current->ptrace_message = scno;
+
 	/* the 0x80 provides a way for the tracing parent to distinguish
 	   between a syscall stop and SIGTRAP delivery */
 	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
@@ -804,4 +811,6 @@ asmlinkage void syscall_trace(int why, struct pt_regs *regs)
 		current->exit_code = 0;
 	}
 	regs->ARM_ip = ip;
+
+	return current->ptrace_message;
 }
-- 
cgit v1.2.3