1 files changed, 118 insertions, 0 deletions
diff --git a/include/asm-arm/processor.h b/include/asm-arm/processor.h
new file mode 100644
index 000000000000..4a9845997a75
--- /dev/null
+++ b/include/asm-arm/processor.h
@@ -0,0 +1,118 @@
+/*
+ *  linux/include/asm-arm/processor.h
+ *
+ *  Copyright (C) 1995-1999 Russell King
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARM_PROCESSOR_H
+#define __ASM_ARM_PROCESSOR_H
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr() ({ __label__ _l; _l: &&_l;})
+
+#ifdef __KERNEL__
+
+#include <asm/ptrace.h>
+#include <asm/procinfo.h>
+#include <asm/types.h>
+
+#define KERNEL_STACK_SIZE	PAGE_SIZE
+
+union debug_insn {
+	u32	arm;
+	u16	thumb;
+};
+
+struct debug_entry {
+	u32			address;
+	union debug_insn	insn;
+};
+
+struct debug_info {
+	int			nsaved;
+	struct debug_entry	bp[2];
+};
+
+struct thread_struct {
+							/* fault info	  */
+	unsigned long		address;
+	unsigned long		trap_no;
+	unsigned long		error_code;
+							/* debugging	  */
+	struct debug_info	debug;
+};
+
+#define INIT_THREAD  {	}
+
+#define start_thread(regs,pc,sp)					\
+({									\
+	unsigned long *stack = (unsigned long *)sp;			\
+	set_fs(USER_DS);						\
+	memzero(regs->uregs, sizeof(regs->uregs));			\
+	if (current->personality & ADDR_LIMIT_32BIT)			\
+		regs->ARM_cpsr = USR_MODE;				\
+	else								\
+		regs->ARM_cpsr = USR26_MODE;				\
+	if (elf_hwcap & HWCAP_THUMB && pc & 1)				\
+		regs->ARM_cpsr |= PSR_T_BIT;				\
+	regs->ARM_pc = pc & ~1;		/* pc */			\
+	regs->ARM_sp = sp;		/* sp */			\
+	regs->ARM_r2 = stack[2];	/* r2 (envp) */			\
+	regs->ARM_r1 = stack[1];	/* r1 (argv) */			\
+	regs->ARM_r0 = stack[0];	/* r0 (argc) */			\
+})
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)	do { } while (0)
+
+unsigned long get_wchan(struct task_struct *p);
+
+#define cpu_relax()			barrier()
+
+/*
+ * Create a new kernel thread
+ */
+extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+#define KSTK_EIP(tsk)	(((unsigned long *)(4096+(unsigned long)(tsk)->thread_info))[1019])
+#define KSTK_ESP(tsk)	(((unsigned long *)(4096+(unsigned long)(tsk)->thread_info))[1017])
+
+/*
+ * Prefetching support - only ARMv5.
+ */
+#if __LINUX_ARM_ARCH__ >= 5
+
+#define ARCH_HAS_PREFETCH
+#define prefetch(ptr)				\
+	({					\
+		__asm__ __volatile__(		\
+		"pld\t%0"			\
+		:				\
+		: "o" (*(char *)(ptr))		\
+		: "cc");			\
+	})
+
+#define ARCH_HAS_PREFETCHW
+#define prefetchw(ptr)	prefetch(ptr)
+
+#define ARCH_HAS_SPINLOCK_PREFETCH
+#define spin_lock_prefetch(x) do { } while (0)
+
+#endif
+
+#endif
+
+#endif /* __ASM_ARM_PROCESSOR_H */