microblaze_v8: system.h processor.h
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/include/asm/system.h b/arch/microblaze/include/asm/system.h
new file mode 100644
index 0000000..c4e3088
--- /dev/null
+++ b/arch/microblaze/include/asm/system.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2006 Atmark Techno, Inc.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_SYSTEM_H
+#define _ASM_MICROBLAZE_SYSTEM_H
+
+#include <asm/registers.h>
+#include <asm/setup.h>
+#include <asm/irqflags.h>
+
+struct task_struct;
+struct thread_info;
+
+extern struct task_struct *_switch_to(struct thread_info *prev,
+ struct thread_info *next);
+
+#define switch_to(prev, next, last) \
+ do { \
+ (last) = _switch_to(task_thread_info(prev), \
+ task_thread_info(next)); \
+ } while (0)
+
+#define smp_read_barrier_depends() do {} while (0)
+#define read_barrier_depends() do {} while (0)
+
+#define nop() asm volatile ("nop")
+#define mb() barrier()
+#define rmb() mb()
+#define wmb() mb()
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+#define set_wmb(var, value) do { var = value; wmb(); } while (0)
+
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+
+void show_trace(struct task_struct *task, unsigned long *stack);
+void __bad_xchg(volatile void *ptr, int size);
+
+static inline unsigned long __xchg(unsigned long x, volatile void *ptr,
+ int size)
+{
+ unsigned long ret;
+ unsigned long flags;
+
+ switch (size) {
+ case 1:
+ local_irq_save(flags);
+ ret = *(volatile unsigned char *)ptr;
+ *(volatile unsigned char *)ptr = x;
+ local_irq_restore(flags);
+ break;
+
+ case 4:
+ local_irq_save(flags);
+ ret = *(volatile unsigned long *)ptr;
+ *(volatile unsigned long *)ptr = x;
+ local_irq_restore(flags);
+ break;
+ default:
+ __bad_xchg(ptr, size), ret = 0;
+ break;
+ }
+
+ return ret;
+}
+
+void disable_hlt(void);
+void enable_hlt(void);
+void default_idle(void);
+
+#define xchg(ptr, x) \
+ ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
+
+void free_init_pages(char *what, unsigned long begin, unsigned long end);
+void free_initmem(void);
+extern char *klimit;
+extern void ret_from_fork(void);
+
+#ifdef CONFIG_DEBUG_FS
+extern struct dentry *of_debugfs_root;
+#endif
+
+#define arch_align_stack(x) (x)
+
+#endif /* _ASM_MICROBLAZE_SYSTEM_H */