7 files changed, 58 insertions, 34 deletions

diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 2ce0e3a27a4..a601b8b55f3 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -29,7 +29,7 @@ ifneq ($(CONFIG_ARCH_EBSA110),y)
   obj-y		+= io.o
 endif
 
-head-y			:= head.o
+head-y			:= head$(MMUEXT).o
 obj-$(CONFIG_DEBUG_LL)	+= debug.o
 
 extra-y := $(head-y) init_task.o vmlinux.lds
diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c
index b324dcac1c5..396efba9bac 100644
--- a/arch/arm/kernel/asm-offsets.c
+++ b/arch/arm/kernel/asm-offsets.c
@@ -95,5 +95,13 @@ int main(void)
   DEFINE(SYS_ERROR0,		0x9f0000);
   BLANK();
   DEFINE(SIZEOF_MACHINE_DESC,	sizeof(struct machine_desc));
+  DEFINE(MACHINFO_TYPE,		offsetof(struct machine_desc, nr));
+  DEFINE(MACHINFO_NAME,		offsetof(struct machine_desc, name));
+  DEFINE(MACHINFO_PHYSIO,	offsetof(struct machine_desc, phys_io));
+  DEFINE(MACHINFO_PGOFFIO,	offsetof(struct machine_desc, io_pg_offst));
+  BLANK();
+  DEFINE(PROC_INFO_SZ,		sizeof(struct proc_info_list));
+  DEFINE(PROCINFO_INITFUNC,	offsetof(struct proc_info_list, __cpu_flush));
+  DEFINE(PROCINFO_MMUFLAGS,	offsetof(struct proc_info_list, __cpu_mmu_flags));
   return 0; 
 }
diff --git a/arch/arm/kernel/dma-isa.c b/arch/arm/kernel/dma-isa.c
index 03532769a97..0a3e9ad297d 100644
--- a/arch/arm/kernel/dma-isa.c
+++ b/arch/arm/kernel/dma-isa.c
@@ -143,12 +143,23 @@ static struct dma_ops isa_dma_ops = {
 	.residue	= isa_get_dma_residue,
 };
 
-static struct resource dma_resources[] = {
-	{ "dma1",		0x0000, 0x000f },
-	{ "dma low page", 	0x0080, 0x008f },
-	{ "dma2",		0x00c0, 0x00df },
-	{ "dma high page",	0x0480, 0x048f }
-};
+static struct resource dma_resources[] = { {
+	.name	= "dma1",
+	.start	= 0x0000,
+	.end	= 0x000f
+}, {
+	.name	= "dma low page",
+	.start	= 0x0080,
+	.end 	= 0x008f
+}, {
+	.name	= "dma2",
+	.start	= 0x00c0,
+	.end	= 0x00df
+}, {
+	.name	= "dma high page",
+	.start	= 0x0480,
+	.end	= 0x048f
+} };
 
 void __init isa_init_dma(dma_t *dma)
 {
diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
index b093ab8738b..adf62e5eaad 100644
--- a/arch/arm/kernel/head-nommu.S
+++ b/arch/arm/kernel/head-nommu.S
@@ -20,11 +20,10 @@
 #include <asm/mach-types.h>
 #include <asm/procinfo.h>
 #include <asm/ptrace.h>
-#include <asm/constants.h>
+#include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
 #include <asm/system.h>
 
-#define PROCINFO_INITFUNC       12
-
 /*
  * Kernel startup entry point.
  * ---------------------------
@@ -79,5 +78,6 @@ __after_proc_init:
 
 	mov	pc, r13				@ clear the BSS and jump
 						@ to start_kernel
+	.ltorg
 
 #include "head-common.S"
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 04b66a9328e..04f7344e356 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -24,14 +24,6 @@
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
-#define PROCINFO_MMUFLAGS	8
-#define PROCINFO_INITFUNC	12
-
-#define MACHINFO_TYPE		0
-#define MACHINFO_PHYSIO		4
-#define MACHINFO_PGOFFIO	8
-#define MACHINFO_NAME		12
-
 #define KERNEL_RAM_ADDR	(PAGE_OFFSET + TEXT_OFFSET)
 
 /*
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 1ff75cee4b0..7df6e1aaa32 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -264,8 +264,12 @@ void show_fpregs(struct user_fp *regs)
 /*
  * Task structure and kernel stack allocation.
  */
-static unsigned long *thread_info_head;
-static unsigned int nr_thread_info;
+struct thread_info_list {
+	unsigned long *head;
+	unsigned int nr;
+};
+
+static DEFINE_PER_CPU(struct thread_info_list, thread_info_list) = { NULL, 0 };
 
 #define EXTRA_TASK_STRUCT	4
 
@@ -274,12 +278,15 @@ struct thread_info *alloc_thread_info(struct task_struct *task)
 	struct thread_info *thread = NULL;
 
 	if (EXTRA_TASK_STRUCT) {
-		unsigned long *p = thread_info_head;
+		struct thread_info_list *th = &get_cpu_var(thread_info_list);
+		unsigned long *p = th->head;
 
 		if (p) {
-			thread_info_head = (unsigned long *)p[0];
-			nr_thread_info -= 1;
+			th->head = (unsigned long *)p[0];
+			th->nr -= 1;
 		}
+		put_cpu_var(thread_info_list);
+
 		thread = (struct thread_info *)p;
 	}
 
@@ -300,13 +307,19 @@ struct thread_info *alloc_thread_info(struct task_struct *task)
 
 void free_thread_info(struct thread_info *thread)
 {
-	if (EXTRA_TASK_STRUCT && nr_thread_info < EXTRA_TASK_STRUCT) {
-		unsigned long *p = (unsigned long *)thread;
-		p[0] = (unsigned long)thread_info_head;
-		thread_info_head = p;
-		nr_thread_info += 1;
-	} else
-		free_pages((unsigned long)thread, THREAD_SIZE_ORDER);
+	if (EXTRA_TASK_STRUCT) {
+		struct thread_info_list *th = &get_cpu_var(thread_info_list);
+		if (th->nr < EXTRA_TASK_STRUCT) {
+			unsigned long *p = (unsigned long *)thread;
+			p[0] = (unsigned long)th->head;
+			th->head = p;
+			th->nr += 1;
+			put_cpu_var(thread_info_list);
+			return;
+		}
+		put_cpu_var(thread_info_list);
+	}
+	free_pages((unsigned long)thread, THREAD_SIZE_ORDER);
 }
 
 /*
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 8cff73e668b..9fc9af88c60 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -407,7 +407,7 @@ static void __init early_initrd(char **p)
 }
 __early_param("initrd=", early_initrd);
 
-static void __init add_memory(unsigned long start, unsigned long size)
+static void __init arm_add_memory(unsigned long start, unsigned long size)
 {
 	/*
 	 * Ensure that start/size are aligned to a page boundary.
@@ -445,7 +445,7 @@ static void __init early_mem(char **p)
 	if (**p == '@')
 		start = memparse(*p + 1, p);
 
-	add_memory(start, size);
+	arm_add_memory(start, size);
 }
 __early_param("mem=", early_mem);
 
@@ -587,7 +587,7 @@ static int __init parse_tag_mem32(const struct tag *tag)
 			tag->u.mem.start, tag->u.mem.size / 1024);
 		return -EINVAL;
 	}
-	add_memory(tag->u.mem.start, tag->u.mem.size);
+	arm_add_memory(tag->u.mem.start, tag->u.mem.size);
 	return 0;
 }
 
@@ -807,7 +807,7 @@ static int __init topology_init(void)
 {
 	int cpu;
 
-	for_each_cpu(cpu)
+	for_each_possible_cpu(cpu)
 		register_cpu(&per_cpu(cpu_data, cpu).cpu, cpu, NULL);
 
 	return 0;