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 */