summaryrefslogtreecommitdiff
path: root/include/asm-arm/processor.h
diff options
context:
space:
mode:
authorwdenk <wdenk>2003-06-25 22:26:29 +0000
committerwdenk <wdenk>2003-06-25 22:26:29 +0000
commitb783edaee8252bfdba3f7b3fd29519a81ce71e42 (patch)
tree6993a909d2c21a3f07c51020edcc202a5697da91 /include/asm-arm/processor.h
parenta300d83cb8ad20b844e957587705675e9ac14147 (diff)
downloadu-boot-imx-b783edaee8252bfdba3f7b3fd29519a81ce71e42.zip
u-boot-imx-b783edaee8252bfdba3f7b3fd29519a81ce71e42.tar.gz
u-boot-imx-b783edaee8252bfdba3f7b3fd29519a81ce71e42.tar.bz2
* Header file cleanup for ARM
* Patch by Murray Jensen, 24 Jun 2003: - make sure to use only U-boot provided header files - fix problems with ".rodata.str1.4" section as used by GCC-3.x
Diffstat (limited to 'include/asm-arm/processor.h')
-rw-r--r--include/asm-arm/processor.h134
1 files changed, 134 insertions, 0 deletions
diff --git a/include/asm-arm/processor.h b/include/asm-arm/processor.h
new file mode 100644
index 0000000..445d449
--- /dev/null
+++ b/include/asm-arm/processor.h
@@ -0,0 +1,134 @@
+/*
+ * linux/include/asm-arm/processor.h
+ *
+ * Copyright (C) 1995-2002 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;})
+
+#define FP_SIZE 35
+
+struct fp_hard_struct {
+ unsigned int save[FP_SIZE]; /* as yet undefined */
+};
+
+struct fp_soft_struct {
+ unsigned int save[FP_SIZE]; /* undefined information */
+};
+
+union fp_state {
+ struct fp_hard_struct hard;
+ struct fp_soft_struct soft;
+};
+
+typedef unsigned long mm_segment_t; /* domain register */
+
+#ifdef __KERNEL__
+
+#define EISA_bus 0
+#define MCA_bus 0
+#define MCA_bus__is_a_macro
+
+#include <asm/atomic.h>
+#include <asm/ptrace.h>
+#if 0 /* XXX###XXX */
+#include <asm/arch/memory.h>
+#endif /* XXX###XXX */
+#include <asm/proc/processor.h>
+#include <asm/types.h>
+
+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 {
+ atomic_t refcount;
+ /* fault info */
+ unsigned long address;
+ unsigned long trap_no;
+ unsigned long error_code;
+ /* floating point */
+ union fp_state fpstate;
+ /* debugging */
+ struct debug_info debug;
+ /* context info */
+ struct context_save_struct *save;
+ EXTRA_THREAD_STRUCT
+};
+
+#define INIT_THREAD { \
+ refcount: ATOMIC_INIT(1), \
+ EXTRA_THREAD_STRUCT_INIT \
+}
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+static inline unsigned long thread_saved_pc(struct thread_struct *t)
+{
+ return t->save ? pc_pointer(t->save->pc) : 0;
+}
+
+static inline unsigned long thread_saved_fp(struct thread_struct *t)
+{
+ return t->save ? t->save->fp : 0;
+}
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+
+/* Free all resources held by a thread. */
+extern void release_thread(struct task_struct *);
+
+/* Copy and release all segment info associated with a VM */
+#define copy_segments(tsk, mm) do { } while (0)
+#define release_segments(mm) do { } while (0)
+
+unsigned long get_wchan(struct task_struct *p);
+
+#define THREAD_SIZE (8192)
+
+extern struct task_struct *alloc_task_struct(void);
+extern void __free_task_struct(struct task_struct *);
+#define get_task_struct(p) atomic_inc(&(p)->thread.refcount)
+#define free_task_struct(p) \
+ do { \
+ if (atomic_dec_and_test(&(p)->thread.refcount)) \
+ __free_task_struct((p)); \
+ } while (0)
+
+#define init_task (init_task_union.task)
+#define init_stack (init_task_union.stack)
+
+#define cpu_relax() barrier()
+
+/*
+ * Create a new kernel thread
+ */
+extern int arch_kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
+
+#endif
+
+#endif /* __ASM_ARM_PROCESSOR_H */