patch-2.2.8 linux/include/asm-arm/processor.h

• Lines: 107
• Date: Sat May 8 11:06:58 1999
• Orig file: v2.2.7/linux/include/asm-arm/processor.h
• Orig date: Tue Jan 19 11:32:53 1999

diff -u --recursive --new-file v2.2.7/linux/include/asm-arm/processor.h linux/include/asm-arm/processor.h
@@ -7,12 +7,14 @@
 #ifndef __ASM_ARM_PROCESSOR_H
 #define __ASM_ARM_PROCESSOR_H
 
+#define FP_SIZE 35
+
 struct fp_hard_struct {
-	unsigned int save[140/4];		/* as yet undefined */
+	unsigned int save[FP_SIZE];		/* as yet undefined */
 };
 
 struct fp_soft_struct {
-	unsigned int save[140/4];		/* undefined information */
+	unsigned int save[FP_SIZE];		/* undefined information */
 };
 
 union fp_state {
@@ -22,28 +24,59 @@
 
 typedef unsigned long mm_segment_t;		/* domain register	*/
 
-#define NR_DEBUGS	5
+#ifdef __KERNEL__
 
-#define DECLARE_THREAD_STRUCT							\
-struct thread_struct {								\
-	unsigned long	address;		/* Address of fault	*/	\
-	unsigned long	trap_no;		/* Trap number		*/	\
-	unsigned long	error_code;		/* Error code of trap	*/	\
-	union fp_state	fpstate;		/* FPE save state	*/	\
-	unsigned long	debug[NR_DEBUGS];	/* Debug/ptrace		*/	\
-	EXTRA_THREAD_STRUCT							\
-}
+#include <asm/assembler.h> 
+
+#define NR_DEBUGS	5
 
 #include <asm/arch/processor.h>
 #include <asm/proc/processor.h>
 
-#define INIT_TSS  {			\
-	0,				\
-	0,				\
-	0,				\
-	{ { { 0, }, }, },		\
-	{ 0, },				\
-	EXTRA_THREAD_STRUCT_INIT	\
+struct thread_struct {
+	unsigned long			address;	  /* Address of fault	*/
+	unsigned long			trap_no;	  /* Trap number	*/
+	unsigned long			error_code;	  /* Error code of trap	*/
+	union fp_state			fpstate;	  /* FPE save state	*/
+	unsigned long			debug[NR_DEBUGS]; /* Debug/ptrace	*/
+	struct context_save_struct	*save;		  /* context save	*/
+	unsigned long			memmap;		  /* page tables	*/
+	EXTRA_THREAD_STRUCT
+};
+
+#define INIT_MMAP \
+{ &init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, NULL, NULL }
+
+#define INIT_TSS  {				\
+	0,					\
+	0,					\
+	0,					\
+	{ { { 0, }, }, },			\
+	{ 0, },					\
+	(struct context_save_struct *)0,	\
+	SWAPPER_PG_DIR				\
+	EXTRA_THREAD_STRUCT_INIT		\
+}
+
+/*
+ * Return saved PC of a blocked thread.
+ */
+extern __inline__ unsigned long thread_saved_pc(struct thread_struct *t)
+{
+	return t->save ? t->save->pc & ~PCMASK : 0;
+}
+
+extern __inline__ unsigned long get_css_fp(struct thread_struct *t)
+{
+	return t->save ? t->save->fp : 0;
+}
+
+asmlinkage void ret_from_sys_call(void) __asm__("ret_from_sys_call");
+
+extern __inline__ void init_thread_css(struct context_save_struct *save)
+{
+	*save = INIT_CSS;
+	save->pc |= (unsigned long)ret_from_sys_call;
 }
 
 /* Forward declaration, a strange C thing */
@@ -57,7 +90,12 @@
 #define release_segments(mm)		do { } while (0)
 #define forget_segments()		do { } while (0)
 
+extern struct task_struct *alloc_task_struct(void);
+extern void free_task_struct(struct task_struct *);
+
 #define init_task	(init_task_union.task)
 #define init_stack	(init_task_union.stack)
+
+#endif
 
 #endif /* __ASM_ARM_PROCESSOR_H */