Merge with 2.3.99-pre1.

8 files changed, 565 insertions, 382 deletions

diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 3920edade..c454c1350 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -8,71 +8,55 @@
 HEAD_OBJ  = head-$(PROCESSOR).o
 ENTRY_OBJ = entry-$(PROCESSOR).o
 
-O_TARGET := kernel.o
-O_OBJS   := $(ENTRY_OBJ) ioport.o irq.o process.o ptrace.o \
-	    semaphore.o setup.o signal.o sys_arm.o time.o traps.o
-
 ifeq ($(CONFIG_ISA_DMA),y)
   ISA_DMA_OBJS += dma-isa.o
 endif
 
-O_OBJS_arc        = dma-arc.o iic.o fiq.o time-acorn.o oldlatches.o
-O_OBJS_a5k        = dma-a5k.o iic.o fiq.o time-acorn.o
-O_OBJS_rpc        = dma-rpc.o iic.o fiq.o time-acorn.o
+O_OBJS_arc        = dma-arc.o oldlatches.o
+O_OBJS_a5k        = dma-a5k.o
+O_OBJS_rpc        = dma-rpc.o
 O_OBJS_ebsa110    = dma-dummy.o
-O_OBJS_footbridge = dma-footbridge.o $(ISA_DMA_OBJS) isa.o
+O_OBJS_footbridge = dma.o dma-footbridge.o $(ISA_DMA_OBJS) hw-footbridge.o isa.o
 O_OBJS_nexuspci   = dma-dummy.o
 O_OBJS_sa1100     = dma-dummy.o fiq.o
 
-OX_OBJS_arc	  = dma.o
-OX_OBJS_a5k	  = dma.o
-OX_OBJS_rpc	  = dma.o
-OX_OBJS_ebsa110	  = 
-OX_OBJS_footbridge= dma.o hw-footbridge.o
-OX_OBJS_nexuspci  =
-OX_OBJS_sa1100    =
+O_TARGET := kernel.o
 
-all: kernel.o $(HEAD_OBJ) init_task.o
+# Object file lists.
 
-O_OBJS += $(O_OBJS_$(MACHINE))
+obj-y			:= arch.o $(ENTRY_OBJ) ioport.o irq.o process.o ptrace.o \
+			   semaphore.o setup.o signal.o sys_arm.o time.o traps.o \
+			   $(O_OBJS_$(MACHINE))
+obj-m			:=
+obj-n			:=
+obj-			:=
 
-ifeq ($(CONFIG_DEBUG_LL),y)
-  O_OBJS += debug-$(PROCESSOR).o
-endif
+export-objs		:= armksyms.o dma.o ecard.o hw-footbridge.o leds-$(MACHINE).o
 
-ifeq ($(CONFIG_MODULES),y)
-  OX_OBJS = armksyms.o
-endif
+obj-$(CONFIG_ARCH_ACORN) += dma.o ecard.o iic.o fiq.o time-acorn.o
+obj-$(CONFIG_DEBUG_LL)	+= debug-$(PROCESSOR).o
+obj-$(CONFIG_MODULES)	+= armksyms.o
+obj-$(CONFIG_LEDS)	+= leds-$(MACHINE).o
+obj-$(CONFIG_ARTHUR)	+= arthur.o
 
-ifeq ($(CONFIG_ARCH_ACORN),y)
-  OX_OBJS += ecard.o
+ifeq ($(MACHINE),nexuspci)
+  obj-$(CONFIG_PCI)	+= plx9080.o
+else
+  obj-$(CONFIG_PCI)	+= bios32.o dec21285.o
 endif
 
-ifeq ($(CONFIG_PCI),y)
-  ifeq ($(MACHINE),nexuspci)
-    O_OBJS += plx9080.o
-  else
-    O_OBJS += bios32.o dec21285.o
-  endif
-endif
+# Files that are both resident and modular; remove from modular.
 
-ifeq ($(CONFIG_LEDS),y)
-  OX_OBJS += leds-$(MACHINE).o
-endif
+obj-m		:= $(filter-out $(obj-y), $(obj-m))
 
-ifeq ($(CONFIG_MODULES),y)
-  OX_OBJS += $(OX_OBJS_$(MACHINE))
-else
-  O_OBJS += $(OX_OBJS_$(MACHINE))
-endif
+# Translate to Rules.make lists.
 
-ifeq ($(CONFIG_ARTHUR),y)
-  O_OBJS += arthur.o
-else
-  ifeq ($(CONFIG_ARTHUR),m)
-    M_OBJS += arthur.o
-  endif
-endif
+O_OBJS		:= $(filter-out $(export-objs), $(obj-y))
+OX_OBJS 	:= $(filter	$(export-objs), $(obj-y))
+M_OBJS		:= $(sort $(filter-out $(export-objs), $(obj-m)))
+MX_OBJS 	:= $(sort $(filter     $(export-objs), $(obj-m)))
+
+all: kernel.o $(HEAD_OBJ) init_task.o
 
 $(HEAD_OBJ): $(HEAD_OBJ:.o=.S)
 	$(CC) -D__ASSEMBLY__ $(AFLAGS) -DTEXTADDR=$(TEXTADDR) -traditional -c $(HEAD_OBJ:.o=.S) -o $@
diff --git a/arch/arm/kernel/arch.c b/arch/arm/kernel/arch.c
new file mode 100644
index 000000000..8645497ae
--- /dev/null
+++ b/arch/arm/kernel/arch.c
@@ -0,0 +1,322 @@
+/*
+ * linux/arch/arm/kernel/arch.c
+ *
+ * Architecture specifics
+ */
+#include <linux/config.h>
+#include <linux/tty.h>
+#include <linux/init.h>
+
+#include <asm/elf.h>
+#include <asm/setup.h>
+#include <asm/system.h>
+
+#include "arch.h"
+
+extern unsigned int system_rev;
+extern unsigned int system_serial_low;
+extern unsigned int system_serial_high;
+
+unsigned int vram_size;
+#ifdef CONFIG_ARCH_ACORN
+unsigned int memc_ctrl_reg;
+unsigned int number_mfm_drives;
+#endif
+
+/*
+ * Architecture specific fixups.  This is where any
+ * parameters in the params struct are fixed up, or
+ * any additional architecture specific information
+ * is pulled from the params struct.
+ */
+static void __init
+fixup_acorn(struct machine_desc *desc, struct param_struct *params,
+	    char **cmdline, struct meminfo *mi)
+{
+#ifdef CONFIG_ARCH_ACORN
+	int i;
+
+	if (machine_is_riscpc()) {
+		/*
+		 * RiscPC can't handle half-word loads and stores
+		 */
+		elf_hwcap &= ~HWCAP_HALF;
+
+		switch (params->u1.s.pages_in_vram) {
+		case 512:
+			vram_size += PAGE_SIZE * 256;
+		case 256:
+			vram_size += PAGE_SIZE * 256;
+		default:
+			break;
+		}
+
+		if (vram_size) {
+			desc->video_start = 0x02000000;
+			desc->video_end   = 0x02000000 + vram_size;
+		}
+
+		for (i = 0; i < 4; i++) {
+			mi->bank[i].start = PHYS_OFFSET + (i << 26);
+			mi->bank[i].size  =
+				params->u1.s.pages_in_bank[i] *
+				params->u1.s.page_size;
+		}
+		mi->nr_banks = 4;
+	}
+	memc_ctrl_reg	  = params->u1.s.memc_control_reg;
+	number_mfm_drives = (params->u1.s.adfsdrives >> 3) & 3;
+#endif
+}
+
+static void __init
+fixup_ebsa285(struct machine_desc *desc, struct param_struct *params,
+	      char **cmdline, struct meminfo *mi)
+{
+	ORIG_X		 = params->u1.s.video_x;
+	ORIG_Y		 = params->u1.s.video_y;
+	ORIG_VIDEO_COLS  = params->u1.s.video_num_cols;
+	ORIG_VIDEO_LINES = params->u1.s.video_num_rows;
+}
+
+/*
+ * Older NeTTroms either do not provide a parameters
+ * page, or they don't supply correct information in
+ * the parameter page.
+ */
+static void __init
+fixup_netwinder(struct machine_desc *desc, struct param_struct *params,
+		char **cmdline, struct meminfo *mi)
+{
+	if (params->u1.s.nr_pages != 0x2000 &&
+	    params->u1.s.nr_pages != 0x4000) {
+		printk(KERN_WARNING "Warning: bad NeTTrom parameters "
+		       "detected, using defaults\n");
+
+		params->u1.s.nr_pages = 0x2000;	/* 32MB */
+		params->u1.s.ramdisk_size = 0;
+		params->u1.s.flags = FLAG_READONLY;
+		params->u1.s.initrd_start = 0;
+		params->u1.s.initrd_size = 0;
+		params->u1.s.rd_start = 0;
+	}
+}
+
+/*
+ * CATS uses soft-reboot by default, since
+ * hard reboots fail on early boards.
+ */
+static void __init
+fixup_cats(struct machine_desc *desc, struct param_struct *params,
+	   char **cmdline, struct meminfo *mi)
+{
+	ORIG_VIDEO_LINES  = 25;
+	ORIG_VIDEO_POINTS = 16;
+	ORIG_Y = 24;
+}
+
+static void __init
+fixup_coebsa285(struct machine_desc *desc, struct param_struct *params,
+		char **cmdline, struct meminfo *mi)
+{
+#if 0
+	extern unsigned long boot_memory_end;
+	extern char boot_command_line[];
+
+	mi->nr_banks      = 1;
+	mi->bank[0].start = PHYS_OFFSET;
+	mi->bank[0].size  = boot_memory_end;
+
+	*cmdline = boot_command_line;
+#endif
+}
+
+static void __init
+fixup_sa1100(struct machine_desc *desc, struct param_struct *params,
+	     char **cmdline, struct meminfo *mi)
+{
+#ifdef CONFIG_ARCH_SA1100
+	int i;
+	extern struct mem_desc {
+		unsigned long phys_start;
+		unsigned long length;
+	} mem_desc[];
+	extern unsigned int mem_desc_size;
+
+	for( i = 0; i < mem_desc_size; i++ ) {
+		if( i >= NR_BANKS ) {
+			printk( __FUNCTION__ 
+				": mem_desc too large for meminfo structure\n");
+			break;
+		}
+		mi->bank[i].start = mem_desc[i].phys_start;
+		mi->bank[i].size = mem_desc[i].length;
+	}
+	mi->nr_banks = i;
+
+#if defined(CONFIG_SA1100_BRUTUS)
+	ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
+	setup_ramdisk( 1, 0, 0, 8192 );
+	setup_initrd( __phys_to_virt(0xd8000000), 0x00400000 );
+#elif defined(CONFIG_SA1100_EMPEG)
+	ROOT_DEV = MKDEV( 3, 1 );  /* /dev/hda1 */
+	setup_ramdisk( 1, 0, 0, 4096 );
+	setup_initrd( 0xd0000000+((1024-320)*1024), (320*1024) );
+#elif defined(CONFIG_SA1100_TIFON)
+	ROOT_DEV = MKDEV(UNNAMED_MAJOR, 0);
+	setup_ramdisk(1, 0, 0, 4096);
+	setup_initrd( 0xd0000000 + 0x1100004, 0x140000 );
+#elif defined(CONFIG_SA1100_VICTOR)
+	ROOT_DEV = MKDEV( 60, 2 );
+
+	/* Get command line parameters passed from the loader (if any) */
+	if( *((char*)0xc0000000) )
+		strcpy( default_command_line, ((char *)0xc0000000) );
+
+	/* power off if any problem */
+	strcat( default_command_line, " panic=1" );
+#elif defined(CONFIG_SA1100_LART)
+	ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
+	setup_ramdisk(1, 0, 0, 8192);
+	setup_initrd(0xc0400000, 0x00400000);
+#endif
+#endif
+}
+
+#define NO_PARAMS	0
+#define NO_VIDEO	0, 0
+
+/*
+ * This is the list of all architectures supported by
+ * this kernel.  This should be integrated with the list
+ * in head-armv.S.
+ */
+static struct machine_desc machine_desc[] __attribute__ ((__section__ (".arch.info"))) = {
+	{
+		MACH_TYPE_EBSA110,
+		"EBSA110",	/* RMK			*/
+		0x00000400,
+		NO_VIDEO,
+		1, 0, 1, 1, 1,
+		NULL
+	}, {
+		MACH_TYPE_RISCPC,
+		"Acorn-RiscPC",	/* RMK			*/
+		0x10000100,
+		NO_VIDEO,
+		1, 1, 0, 0, 0,
+		fixup_acorn
+	}, {
+		2,
+		"unknown",
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_NEXUSPCI,
+		"FTV/PCI",	/* Philip Blundell	*/
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_EBSA285,
+		"EBSA285",		/* RMK			*/
+		0x00000100,
+		0x000a0000, 0x000bffff,
+		0, 0, 0, 0, 0,
+		fixup_ebsa285
+	}, {
+		MACH_TYPE_NETWINDER,
+		"Rebel-NetWinder",	/* RMK			*/
+		0x00000100,
+		0x000a0000, 0x000bffff,
+		1, 0, 1, 0, 0,
+		fixup_netwinder
+	}, {
+		MACH_TYPE_CATS,
+		"Chalice-CATS",	/* Philip Blundell	*/
+		NO_PARAMS,
+		0x000a0000, 0x000bffff,
+		0, 0, 0, 0, 1,
+		fixup_cats
+	}, {
+		MACH_TYPE_TBOX,
+		"unknown-TBOX",	/* Philip Blundell	*/
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_CO285,
+		"co-EBSA285",	/* Mark van Doesburg	*/
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		fixup_coebsa285
+	}, {
+		MACH_TYPE_CLPS7110,
+		"CL-PS7110",	/* Werner Almesberger	*/
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_ARCHIMEDES,
+		"Acorn-Archimedes",/* RMK/DAG		*/
+		0x0207c000,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		fixup_acorn
+	}, {
+		MACH_TYPE_A5K,
+		"Acorn-A5000",	/* RMK/PB		*/
+		0x0207c000,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		fixup_acorn
+	}, {
+		MACH_TYPE_ETOILE,
+		"Etoile",		/* Alex de Vries	*/
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_LACIE_NAS,
+		"LaCie_NAS",	/* Benjamin Herrenschmidt */
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_CLPS7500,
+		"CL-PS7500",	/* Philip Blundell	*/
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_SHARK,
+		"Shark",		/* Alexander Schulz	*/
+		NO_PARAMS,
+		0x06000000, 0x06000000+0x001fffff,
+		0, 0, 0, 0, 0,
+		NULL
+	}, {
+		MACH_TYPE_SA1100,
+		"SA1100-based",	/* Nicolas Pitre	*/
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		fixup_sa1100
+	}, {
+		MACH_TYPE_PERSONAL_SERVER,
+		"Compaq Personal Server",
+		NO_PARAMS,
+		NO_VIDEO,
+		0, 0, 0, 0, 0,
+		NULL
+	}
+};
diff --git a/arch/arm/kernel/arch.h b/arch/arm/kernel/arch.h
new file mode 100644
index 000000000..b7635b11e
--- /dev/null
+++ b/arch/arm/kernel/arch.h
@@ -0,0 +1,15 @@
+struct machine_desc {
+	unsigned int	nr;		/* architecture number	*/
+	const char	*name;		/* architecture name	*/
+	unsigned int	param_offset;	/* parameter page	*/
+	unsigned int	video_start;	/* start of video RAM	*/
+	unsigned int	video_end;	/* end of video RAM	*/
+	unsigned int	reserve_lp0 :1;	/* never has lp0	*/
+	unsigned int	reserve_lp1 :1;	/* never has lp1	*/
+	unsigned int	reserve_lp2 :1;	/* never has lp2	*/
+	unsigned int	broken_hlt  :1;	/* hlt is broken	*/
+	unsigned int	soft_reboot :1;	/* soft reboot		*/
+	void		(*fixup)(struct machine_desc *,
+				 struct param_struct *, char **,
+				 struct meminfo *);
+};
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index c445daeee..5a1b4ed31 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -8,6 +8,7 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 #include <linux/in6.h>
+#include <linux/vt_kern.h>
 
 #include <asm/byteorder.h>
 #include <asm/elf.h>
@@ -83,6 +84,8 @@ EXPORT_SYMBOL(fpundefinstr);
 EXPORT_SYMBOL(ret_from_exception);
 #endif
 
+EXPORT_SYMBOL(kd_mksound);
+
 	/* platform dependent support */
 EXPORT_SYMBOL(dump_thread);
 EXPORT_SYMBOL(dump_fpu);
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 7a1b57c22..1b0a064d0 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -222,8 +222,9 @@ static u8 __init no_swizzle(struct pci_dev *dev, u8 *pin)
 	return 0;
 }
 
-#ifdef CONFIG_FOOTBRIDGE
 /* ebsa285 host-specific stuff */
+
+#ifdef CONFIG_ARCH_EBSA285
 static int irqmap_ebsa285[] __initdata = { IRQ_IN1, IRQ_IN0, IRQ_PCI, IRQ_IN3 };
 
 static u8 __init ebsa285_swizzle(struct pci_dev *dev, u8 *pin)
@@ -251,7 +252,9 @@ static struct hw_pci ebsa285_pci __initdata = {
 	ebsa285_swizzle,
 	ebsa285_map_irq
 };
+#endif
 
+#ifdef CONFIG_CATS
 /* cats host-specific stuff */
 static int irqmap_cats[] __initdata = { IRQ_PCI, IRQ_IN0, IRQ_IN1, IRQ_IN3 };
 
@@ -277,7 +280,9 @@ static struct hw_pci cats_pci __initdata = {
 	no_swizzle,
 	cats_map_irq
 };
+#endif
 
+#ifdef CONFIG_ARCH_NETWINDER
 /* netwinder host-specific stuff */
 static int __init netwinder_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
 {
@@ -318,6 +323,41 @@ static struct hw_pci netwinder_pci __initdata = {
 };
 #endif
 
+#ifdef CONFIG_PERSONAL_SERVER
+static int irqmap_personal_server[] __initdata = {
+	IRQ_IN0, IRQ_IN1, IRQ_IN2, IRQ_IN3, 0, 0, 0,
+	IRQ_DOORBELLHOST, IRQ_DMA1, IRQ_DMA2, IRQ_PCI
+};
+
+static int __init personal_server_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+	unsigned char line;
+
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &line);
+
+	if (line > 0x40 && line <= 0x5f) {
+		/* line corresponds to the bit controlling this interrupt
+		 * in the footbridge.  Ignore the first 8 interrupt bits,
+		 * look up the rest in the map.  IN0 is bit number 8
+		 */
+		return irqmap_personal_server[(line & 0x1f) - 8];
+	} else if (line == 0) {
+		/* no interrupt */
+		return 0;
+	} else
+		return irqmap_personal_server[(line - 1) & 3];
+}
+
+static struct hw_pci personal_server_pci __initdata = {
+	dc21285_init,
+	0x9000,
+	0x00100000,
+	no_swizzle,
+	personal_server_map_irq
+};
+
+#endif
+
 #ifdef CONFIG_ARCH_NEXUSPCI
 /*
  * Owing to a PCB cockup, issue A backplanes are wired thus:
@@ -352,17 +392,38 @@ void __init pcibios_init(void)
 {
 	struct hw_pci *hw_pci = NULL;
 
-#ifdef CONFIG_FOOTBRIDGE
-	if (machine_is_ebsa285())
-		hw_pci = &ebsa285_pci;
-	else if (machine_is_cats())
-		hw_pci = &cats_pci;
-	else if (machine_is_netwinder())
-		hw_pci = &netwinder_pci;
+	do {
+#ifdef CONFIG_ARCH_EBSA285
+		if (machine_is_ebsa285()) {
+			hw_pci = &ebsa285_pci;
+			break;
+		}
+#endif
+#ifdef CONFIG_CATS
+		if (machine_is_cats()) {
+			hw_pci = &cats_pci;
+			break;
+		}
+#endif
+#ifdef CONFIG_ARCH_NETWINDER
+		if (machine_is_netwinder()) {
+			hw_pci = &netwinder_pci;
+			break;
+		}
+#endif
+#ifdef CONFIG_PERSONAL_SERVER
+		if (machine_is_personal_server()) {
+			hw_pci = &personal_server_pci;
+			break;
+		}
 #endif
 #ifdef CONFIG_ARCH_NEXUSPCI
-	hw_pci = &ftv_pci;
+		if (machine_is_nexuspci()) {
+			hw_pci = &ftv_pci;
+			break;
+		}
 #endif
+	} while (0);			
 
 	if (hw_pci == NULL)
 		return;
diff --git a/arch/arm/kernel/head-armv.S b/arch/arm/kernel/head-armv.S
index 35e71a4a9..27a280b8b 100644
--- a/arch/arm/kernel/head-armv.S
+++ b/arch/arm/kernel/head-armv.S
@@ -22,6 +22,7 @@
 		.equ	SYMBOL_NAME(swapper_pg_dir),	TEXTADDR - 0x8000 + SWAPPER_PGDIR_OFFSET
 
 		.section ".text.init",#alloc,#execinstr
+		.type	stext, #function
 ENTRY(stext)
 ENTRY(_stext)
 
@@ -311,6 +312,7 @@ __lookup_architecture_type:
  * required for debugging information to be shown to the user.
  * paging_init() does the real page table initialisation.
  */
+		.type	__arch_types_start, #object
 		@ 0x00 - DEC EBSA110
 __arch_types_start:
 		.long	0
@@ -398,15 +400,15 @@ __arch_types_start:
 
 		@ 0x0e - CL-PS7500
 		.long	0
-		.long	0
-		.long	0
-		.long	0
+		.long	0x10000000
+		.long	0x03000000
+		.long	0xe0000000
 
-		@ 0x0f - Shark
-		.long	0
-		.long	0
-		.long	0
+		@ 0x0f - Digital Shark (DNARD)
 		.long	0
+		.long	0x08000000
+		.long	0x40000000
+		.long	0xe0000000
 
 		@ 0x10 - SA1100
 		.long	0
diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
index 0692d1a6c..0ace4c898 100644
--- a/arch/arm/kernel/ptrace.c
+++ b/arch/arm/kernel/ptrace.c
@@ -521,6 +521,48 @@ asmlinkage int sys_ptrace(long request, long pid, long addr, long data)
 			/* give it a chance to run. */
 			ret = 0;
 			goto out;
+			
+		case PTRACE_GETREGS:
+		{	/* Get all gp regs from the child. */
+			unsigned char *stack;
+
+			ret = 0;
+			stack = (unsigned char *)((unsigned long)child + 8192 - sizeof(struct pt_regs));
+			if (copy_to_user((void *)data, stack,
+					 sizeof(struct pt_regs)))
+				ret = -EFAULT;
+
+			goto out;
+		};
+
+		case PTRACE_SETREGS:
+		{
+			/* Set all gp regs in the child. */
+			unsigned char *stack;
+
+			ret = 0;
+			stack = (unsigned char *)((unsigned long)child + 8192 - sizeof(struct pt_regs));
+			if (copy_from_user(stack, (void *)data,
+					   sizeof(struct pt_regs)))
+				ret = -EFAULT;
+			goto out;
+		  };
+
+		case PTRACE_GETFPREGS: 
+			/* Get the child FPU state. */
+			ret = 0;
+			if (copy_to_user((void *)data, &child->thread.fpstate,
+					 sizeof(struct user_fp)))
+				ret = -EFAULT;
+			goto out;
+		
+		case PTRACE_SETFPREGS:
+			/* Set the child FPU state. */
+			ret = 0;
+			if (copy_from_user(&child->thread.fpstate, (void *)data,
+					   sizeof(struct user_fp)))
+				ret = -EFAULT;
+			goto out;
 
 		case PTRACE_DETACH:				/* detach a process that was attached. */
 			ret = -EIO;
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 5815529aa..6a3429bdd 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -1,13 +1,12 @@
 /*
  *  linux/arch/arm/kernel/setup.c
  *
- *  Copyright (C) 1995-1999 Russell King
+ *  Copyright (C) 1995-2000 Russell King
  */
 #include <linux/config.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
-#include <linux/tty.h>
 #include <linux/ioport.h>
 #include <linux/delay.h>
 #include <linux/utsname.h>
@@ -23,6 +22,8 @@
 #include <asm/setup.h>
 #include <asm/system.h>
 
+#include "arch.h"
+
 #ifndef MEM_SIZE
 #define MEM_SIZE	(16*1024*1024)
 #endif
@@ -31,6 +32,7 @@
 #define CONFIG_CMDLINE ""
 #endif
 
+extern void paging_init(struct meminfo *);
 extern void reboot_setup(char *str);
 extern void disable_hlt(void);
 extern int root_mountflags;
@@ -38,33 +40,11 @@ extern int _stext, _text, _etext, _edata, _end;
 
 unsigned int processor_id;
 unsigned int __machine_arch_type;
-unsigned int vram_size;
 unsigned int system_rev;
 unsigned int system_serial_low;
 unsigned int system_serial_high;
 unsigned int elf_hwcap;
 
-#ifdef CONFIG_ARCH_ACORN
-unsigned int memc_ctrl_reg;
-unsigned int number_mfm_drives;
-#endif
-
-struct meminfo meminfo;
-
-struct machine_desc {
-	const char	*name;		/* architecture name	*/
-	unsigned int	param_offset;	/* parameter page	*/
-	unsigned int	video_start;	/* start of video RAM	*/
-	unsigned int	video_end;	/* end of video RAM	*/
-	unsigned int	reserve_lp0 :1;	/* never has lp0	*/
-	unsigned int	reserve_lp1 :1;	/* never has lp1	*/
-	unsigned int	reserve_lp2 :1;	/* never has lp2	*/
-	unsigned int	broken_hlt  :1;	/* hlt is broken	*/
-	unsigned int	soft_reboot :1;	/* soft reboot		*/
-	void		(*fixup)(struct machine_desc *,
-				 struct param_struct *, char **);
-};
-
 #ifdef MULTI_CPU
 struct processor processor;
 #endif
@@ -156,6 +136,33 @@ static void __init setup_processor(void)
 	cpu_proc_init();
 }
 
+static struct machine_desc * __init setup_architecture(unsigned int nr)
+{
+	extern struct machine_desc __arch_info_begin, __arch_info_end;
+	struct machine_desc *list;
+
+	/*
+	 * locate architecture in the list of supported architectures.
+	 */
+	for (list = &__arch_info_begin; list < &__arch_info_end; list++)
+		if (list->nr == nr)
+			break;
+
+	/*
+	 * If the architecture type is not recognised, then we
+	 * can co nothing...
+	 */
+	if (list >= &__arch_info_end) {
+		printk("Architecture configuration botched (nr %d), unable "
+		       "to continue.\n", nr);
+		while (1);
+	}
+
+	printk("Architecture: %s\n", list->name);
+
+	return list;
+}
+
 static unsigned long __init memparse(char *ptr, char **retptr)
 {
 	unsigned long ret = simple_strtoul(ptr, retptr, 0);
@@ -180,7 +187,7 @@ static unsigned long __init memparse(char *ptr, char **retptr)
  * are "size[KkMm]"
  */
 static void __init
-parse_cmdline(char **cmdline_p, char *from)
+parse_cmdline(struct meminfo *mi, char **cmdline_p, char *from)
 {
 	char c = ' ', *to = command_line;
 	int usermem = 0, len = 0;
@@ -198,7 +205,7 @@ parse_cmdline(char **cmdline_p, char *from)
 			 */
 			if (usermem == 0) {
 				usermem = 1;
-				meminfo.nr_banks = 0;
+				mi->nr_banks = 0;
 			}
 
 			start = PHYS_OFFSET;
@@ -206,9 +213,9 @@ parse_cmdline(char **cmdline_p, char *from)
 			if (*from == '@')
 				start = memparse(from + 1, &from);
 
-			meminfo.bank[meminfo.nr_banks].start = start;
-			meminfo.bank[meminfo.nr_banks].size  = size;
-			meminfo.nr_banks += 1;
+			mi->bank[mi->nr_banks].start = start;
+			mi->bank[mi->nr_banks].size  = size;
+			mi->nr_banks += 1;
 		}
 		c = *from++;
 		if (!c)
@@ -265,7 +272,8 @@ static void __init setup_initrd(unsigned int start, unsigned int size)
 #define free_bootmem(s,sz)	free_bootmem((s)<<PAGE_SHIFT, (sz)<<PAGE_SHIFT)
 #define reserve_bootmem(s,sz)	reserve_bootmem((s)<<PAGE_SHIFT, (sz)<<PAGE_SHIFT)
 
-static unsigned int __init find_bootmap_pfn(unsigned int bootmap_pages)
+static unsigned int __init
+find_bootmap_pfn(struct meminfo *mi, unsigned int bootmap_pages)
 {
 	unsigned int start_pfn, bank, bootmap_pfn;
 
@@ -278,25 +286,25 @@ static unsigned int __init find_bootmap_pfn(unsigned int bootmap_pages)
 	 */
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (initrd_start) {
-		if (__pa(initrd_end) > meminfo.end) {
+		if (__pa(initrd_end) > mi->end) {
 			printk ("initrd extends beyond end of memory "
 				"(0x%08lx > 0x%08lx) - disabling initrd\n",
-				__pa(initrd_end), meminfo.end);
+				__pa(initrd_end), mi->end);
 			initrd_start = 0;
 			initrd_end   = 0;
 		}
 	}
 #endif
 
-	for (bank = 0; bank < meminfo.nr_banks; bank ++) {
+	for (bank = 0; bank < mi->nr_banks; bank ++) {
 		unsigned int start, end;
 
-		if (meminfo.bank[bank].size == 0)
+		if (mi->bank[bank].size == 0)
 			continue;
 
-		start = O_PFN_UP(meminfo.bank[bank].start);
-		end   = O_PFN_DOWN(meminfo.bank[bank].size +
-				   meminfo.bank[bank].start);
+		start = O_PFN_UP(mi->bank[bank].start);
+		end   = O_PFN_DOWN(mi->bank[bank].size +
+				   mi->bank[bank].start);
 
 		if (end < start_pfn)
 			continue;
@@ -322,7 +330,7 @@ static unsigned int __init find_bootmap_pfn(unsigned int bootmap_pages)
 /*
  * Initialise the bootmem allocator.
  */
-static void __init setup_bootmem(void)
+static void __init setup_bootmem(struct meminfo *mi)
 {
 	unsigned int end_pfn, start_pfn, bootmap_pages, bootmap_pfn;
 	unsigned int i;
@@ -330,21 +338,21 @@ static void __init setup_bootmem(void)
 	/*
 	 * Calculate the  physical address of the top of memory.
 	 */
-	meminfo.end = 0;
-	for (i = 0; i < meminfo.nr_banks; i++) {
+	mi->end = 0;
+	for (i = 0; i < mi->nr_banks; i++) {
 		unsigned long end;
 
-		if (meminfo.bank[i].size != 0) {
-			end = meminfo.bank[i].start + meminfo.bank[i].size;
-			if (meminfo.end < end)
-				meminfo.end = end;
+		if (mi->bank[i].size != 0) {
+			end = mi->bank[i].start + mi->bank[i].size;
+			if (mi->end < end)
+				mi->end = end;
 		}
 	}
 
 	start_pfn     = O_PFN_UP(PHYS_OFFSET);
-	end_pfn	      = O_PFN_DOWN(meminfo.end);
+	end_pfn	      = O_PFN_DOWN(mi->end);
 	bootmap_pages = bootmem_bootmap_pages(end_pfn - start_pfn);
-	bootmap_pfn   = find_bootmap_pfn(bootmap_pages);
+	bootmap_pfn   = find_bootmap_pfn(mi, bootmap_pages);
 
 	/*
 	 * Initialise the boot-time allocator
@@ -354,10 +362,10 @@ static void __init setup_bootmem(void)
 	/*
 	 * Register all available RAM with the bootmem allocator.
 	 */
-	for (i = 0; i < meminfo.nr_banks; i++)
-		if (meminfo.bank[i].size)
-			free_bootmem(O_PFN_UP(meminfo.bank[i].start),
-				     PFN_SIZE(meminfo.bank[i].size));
+	for (i = 0; i < mi->nr_banks; i++)
+		if (mi->bank[i].size)
+			free_bootmem(O_PFN_UP(mi->bank[i].start),
+				     PFN_SIZE(mi->bank[i].size));
 
 	/*
 	 * Register the reserved regions with bootmem
@@ -379,7 +387,8 @@ static void __init setup_bootmem(void)
 #endif
 }
 
-static void __init request_standard_resources(struct machine_desc *mdesc)
+static void __init
+request_standard_resources(struct meminfo *mi, struct machine_desc *mdesc)
 {
 	struct resource *res;
 	int i;
@@ -389,14 +398,14 @@ static void __init request_standard_resources(struct machine_desc *mdesc)
 	kernel_data.start  = __virt_to_bus(init_mm.end_code);
 	kernel_data.end    = __virt_to_bus(init_mm.brk - 1);
 
-	for (i = 0; i < meminfo.nr_banks; i++) {
+	for (i = 0; i < mi->nr_banks; i++) {
 		unsigned long virt_start, virt_end;
 
-		if (meminfo.bank[i].size == 0)
+		if (mi->bank[i].size == 0)
 			continue;
 
-		virt_start = __phys_to_virt(meminfo.bank[i].start);
-		virt_end   = virt_start + meminfo.bank[i].size - 1;
+		virt_start = __phys_to_virt(mi->bank[i].start);
+		virt_end   = virt_start + mi->bank[i].size - 1;
 
 		res = alloc_bootmem_low(sizeof(*res));
 		res->name  = "System RAM";
@@ -432,270 +441,15 @@ static void __init request_standard_resources(struct machine_desc *mdesc)
 		request_resource(&ioport_resource, &lp2);
 }
 
-/*
- * Architecture specific fixups.  This is where any
- * parameters in the params struct are fixed up, or
- * any additional architecture specific information
- * is pulled from the params struct.
- */
-static void __init
-fixup_acorn(struct machine_desc *desc, struct param_struct *params,
-	    char **cmdline)
-{
-#ifdef CONFIG_ARCH_ACORN
-	int i;
-
-	if (machine_is_riscpc()) {
-		/*
-		 * RiscPC can't handle half-word loads and stores
-		 */
-		elf_hwcap &= ~HWCAP_HALF;
-
-		switch (params->u1.s.pages_in_vram) {
-		case 512:
-			vram_size += PAGE_SIZE * 256;
-		case 256:
-			vram_size += PAGE_SIZE * 256;
-		default:
-			break;
-		}
-
-		if (vram_size) {
-			desc->video_start = 0x02000000;
-			desc->video_end   = 0x02000000 + vram_size;
-		}
-
-		for (i = 0; i < 4; i++) {
-			meminfo.bank[i].start = PHYS_OFFSET + (i << 26);
-			meminfo.bank[i].size  =
-				params->u1.s.pages_in_bank[i] *
-				params->u1.s.page_size;
-		}
-		meminfo.nr_banks = 4;
-	}
-	memc_ctrl_reg	  = params->u1.s.memc_control_reg;
-	number_mfm_drives = (params->u1.s.adfsdrives >> 3) & 3;
-#endif
-}
-
-static void __init
-fixup_ebsa285(struct machine_desc *desc, struct param_struct *params,
-	      char **cmdline)
-{
-	ORIG_X		 = params->u1.s.video_x;
-	ORIG_Y		 = params->u1.s.video_y;
-	ORIG_VIDEO_COLS  = params->u1.s.video_num_cols;
-	ORIG_VIDEO_LINES = params->u1.s.video_num_rows;
-}
-
-/*
- * Older NeTTroms either do not provide a parameters
- * page, or they don't supply correct information in
- * the parameter page.
- */
-static void __init
-fixup_netwinder(struct machine_desc *desc, struct param_struct *params,
-		char **cmdline)
-{
-	if (params->u1.s.nr_pages != 0x2000 &&
-	    params->u1.s.nr_pages != 0x4000) {
-		printk(KERN_WARNING "Warning: bad NeTTrom parameters "
-		       "detected, using defaults\n");
-
-		params->u1.s.nr_pages = 0x2000;	/* 32MB */
-		params->u1.s.ramdisk_size = 0;
-		params->u1.s.flags = FLAG_READONLY;
-		params->u1.s.initrd_start = 0;
-		params->u1.s.initrd_size = 0;
-		params->u1.s.rd_start = 0;
-	}
-}
-
-/*
- * CATS uses soft-reboot by default, since
- * hard reboots fail on early boards.
- */
-static void __init
-fixup_cats(struct machine_desc *desc, struct param_struct *params,
-	   char **cmdline)
-{
-	ORIG_VIDEO_LINES  = 25;
-	ORIG_VIDEO_POINTS = 16;
-	ORIG_Y = 24;
-}
-
-static void __init
-fixup_coebsa285(struct machine_desc *desc, struct param_struct *params,
-		char **cmdline)
-{
-#if 0
-	extern unsigned long boot_memory_end;
-	extern char boot_command_line[];
-
-	meminfo.nr_banks      = 1;
-	meminfo.bank[0].start = PHYS_OFFSET;
-	meminfo.bank[0].size  = boot_memory_end;
-
-	*cmdline = boot_command_line;
-#endif
-}
-
-static void __init
-fixup_sa1100(struct machine_desc *desc, struct param_struct *params,
-		char **cmdline)
-{
-#ifdef CONFIG_ARCH_SA1100
-	int i;
-	extern struct mem_desc {
-		unsigned long phys_start;
-		unsigned long length;
-	} mem_desc[];
-	extern unsigned int mem_desc_size;
-
-	for( i = 0; i < mem_desc_size; i++ ) {
-		if( i >= NR_BANKS ) {
-			printk( __FUNCTION__ 
-				": mem_desc too large for meminfo structure\n");
-			break;
-		}
-		meminfo.bank[i].start = mem_desc[i].phys_start;
-		meminfo.bank[i].size = mem_desc[i].length;
-	}
-	meminfo.nr_banks = i;
-
-#if defined(CONFIG_SA1100_BRUTUS)
-	ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
-	setup_ramdisk( 1, 0, 0, 8192 );
-	setup_initrd( __phys_to_virt(0xd8000000), 0x00400000 );
-#elif defined(CONFIG_SA1100_EMPEG)
-	ROOT_DEV = MKDEV( 3, 1 );  /* /dev/hda1 */
-	setup_ramdisk( 1, 0, 0, 4096 );
-	setup_initrd( 0xd0000000+((1024-320)*1024), (320*1024) );
-#elif defined(CONFIG_SA1100_TIFON)
-	ROOT_DEV = MKDEV(UNNAMED_MAJOR, 0);
-	setup_ramdisk(1, 0, 0, 4096);
-	setup_initrd( 0xd0000000 + 0x1100004, 0x140000 );
-#elif defined(CONFIG_SA1100_VICTOR)
-	ROOT_DEV = MKDEV( 60, 2 );
-
-	/* Get command line parameters passed from the loader (if any) */
-	if( *((char*)0xc0000000) )
-		strcpy( default_command_line, ((char *)0xc0000000) );
-
-	/* power off if any problem */
-	strcat( default_command_line, " panic=1" );
-#elif defined(CONFIG_SA1100_LART)
-	ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
-	setup_ramdisk(1, 0, 0, 8192);
-	setup_initrd(0xc0400000, 0x00400000);
-#endif
-#endif
-}
-
-#define NO_PARAMS	0
-#define NO_VIDEO	0, 0
-
-/*
- * This is the list of all architectures supported by
- * this kernel.  This should be integrated with the list
- * in head-armv.S.
- */
-static struct machine_desc machine_desc[] __initdata = {
-	{ "EBSA110",		/* RMK			*/
-		0x00000400,
-		NO_VIDEO,
-		1, 0, 1, 1, 1,
-		NULL
-	}, { "Acorn-RiscPC",	/* RMK			*/
-		0x10000100,
-		NO_VIDEO,
-		1, 1, 0, 0, 0,
-		fixup_acorn
-	}, { "unknown",
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "FTV/PCI",		/* Philip Blundell	*/
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "EBSA285",		/* RMK			*/
-		0x00000100,
-		0x000a0000, 0x000bffff,
-		0, 0, 0, 0, 0,
-		fixup_ebsa285
-	}, { "Rebel-NetWinder",	/* RMK			*/
-		0x00000100,
-		0x000a0000, 0x000bffff,
-		1, 0, 1, 0, 0,
-		fixup_netwinder
-	}, { "Chalice-CATS",	/* Philip Blundell	*/
-		NO_PARAMS,
-		0x000a0000, 0x000bffff,
-		0, 0, 0, 0, 1,
-		fixup_cats
-	}, { "unknown-TBOX",	/* Philip Blundell	*/
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "co-EBSA285",	/* Mark van Doesburg	*/
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		fixup_coebsa285
-	}, { "CL-PS7110",	/* Werner Almesberger	*/
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "Acorn-Archimedes",/* RMK/DAG		*/
-		0x0207c000,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		fixup_acorn
-	}, { "Acorn-A5000",	/* RMK/PB		*/
-		0x0207c000,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		fixup_acorn
-	}, { "Etoile",		/* Alex de Vries	*/
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "LaCie_NAS",	/* Benjamin Herrenschmidt */
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "CL-PS7500",	/* Philip Blundell	*/
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "Shark",		/* Alexander Schulz	*/
-		NO_PARAMS,
-		/* do you really mean 0x200000? */
-		0x06000000, 0x06000000+0x00200000,
-		0, 0, 0, 0, 0,
-		NULL
-	}, { "SA1100-based",	/* Nicolas Pitre	*/
-		NO_PARAMS,
-		NO_VIDEO,
-		0, 0, 0, 0, 0,
-		fixup_sa1100
-	}
-};
-
 void __init setup_arch(char **cmdline_p)
 {
 	struct param_struct *params = NULL;
 	struct machine_desc *mdesc;
+	struct meminfo meminfo;
 	char *from = default_command_line;
 
+	memset(&meminfo, 0, sizeof(meminfo));
+
 #if defined(CONFIG_ARCH_ARC)
 	__machine_arch_type = MACH_TYPE_ARCHIMEDES;
 #elif defined(CONFIG_ARCH_A5K)
@@ -706,7 +460,7 @@ void __init setup_arch(char **cmdline_p)
 
 	ROOT_DEV = MKDEV(0, 255);
 
-	mdesc = machine_desc + machine_arch_type;
+	mdesc = setup_architecture(machine_arch_type);
 	machine_name = mdesc->name;
 
 	if (mdesc->broken_hlt)
@@ -719,7 +473,7 @@ void __init setup_arch(char **cmdline_p)
 		params = phys_to_virt(mdesc->param_offset);
 
 	if (mdesc->fixup)
-		mdesc->fixup(mdesc, params, &from);
+		mdesc->fixup(mdesc, params, &from, &meminfo);
 
 	if (params && params->u1.s.page_size != PAGE_SIZE) {
 		printk(KERN_WARNING "Warning: bad configuration page, "
@@ -763,11 +517,11 @@ void __init setup_arch(char **cmdline_p)
 
 	memcpy(saved_command_line, from, COMMAND_LINE_SIZE);
 	saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
-	parse_cmdline(cmdline_p, from);
-	setup_bootmem();
-	request_standard_resources(mdesc);
+	parse_cmdline(&meminfo, cmdline_p, from);
+	setup_bootmem(&meminfo);
+	request_standard_resources(&meminfo, mdesc);
 
-	paging_init();
+	paging_init(&meminfo);
 
 #ifdef CONFIG_VT
 #if defined(CONFIG_VGA_CONSOLE)