From 556dcee7b829e5c350c3ffdbdb87a8b15aa3c5d3 Mon Sep 17 00:00:00 2001
From: Jesper Nilsson <jesper.nilsson@axis.com>
Date: Tue, 21 Oct 2008 17:45:58 +0200
Subject: [CRIS] Move header files from include to arch/cris/include.
Change all users of header files to correct path.
Remove some unneeded headers for arch-v32.
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
---
arch/cris/include/asm/system.h | 88 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 88 insertions(+)
create mode 100644 arch/cris/include/asm/system.h
(limited to 'arch/cris/include/asm/system.h')
diff --git a/arch/cris/include/asm/system.h b/arch/cris/include/asm/system.h
new file mode 100644
index 000000000000..8657b084a922
--- /dev/null
+++ b/arch/cris/include/asm/system.h
@@ -0,0 +1,88 @@
+#ifndef __ASM_CRIS_SYSTEM_H
+#define __ASM_CRIS_SYSTEM_H
+
+#include <arch/system.h>
+
+/* the switch_to macro calls resume, an asm function in entry.S which does the actual
+ * task switching.
+ */
+
+extern struct task_struct *resume(struct task_struct *prev, struct task_struct *next, int);
+#define switch_to(prev,next,last) last = resume(prev,next, \
+ (int)&((struct task_struct *)0)->thread)
+
+#define barrier() __asm__ __volatile__("": : :"memory")
+#define mb() barrier()
+#define rmb() mb()
+#define wmb() mb()
+#define read_barrier_depends() do { } while(0)
+#define set_mb(var, value) do { var = value; mb(); } while (0)
+
+#ifdef CONFIG_SMP
+#define smp_mb() mb()
+#define smp_rmb() rmb()
+#define smp_wmb() wmb()
+#define smp_read_barrier_depends() read_barrier_depends()
+#else
+#define smp_mb() barrier()
+#define smp_rmb() barrier()
+#define smp_wmb() barrier()
+#define smp_read_barrier_depends() do { } while(0)
+#endif
+
+#define iret()
+
+/*
+ * disable hlt during certain critical i/o operations
+ */
+#define HAVE_DISABLE_HLT
+void disable_hlt(void);
+void enable_hlt(void);
+
+static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
+{
+ /* since Etrax doesn't have any atomic xchg instructions, we need to disable
+ irq's (if enabled) and do it with move.d's */
+ unsigned long flags,temp;
+ local_irq_save(flags); /* save flags, including irq enable bit and shut off irqs */
+ switch (size) {
+ case 1:
+ *((unsigned char *)&temp) = x;
+ x = *(unsigned char *)ptr;
+ *(unsigned char *)ptr = *((unsigned char *)&temp);
+ break;
+ case 2:
+ *((unsigned short *)&temp) = x;
+ x = *(unsigned short *)ptr;
+ *(unsigned short *)ptr = *((unsigned short *)&temp);
+ break;
+ case 4:
+ temp = x;
+ x = *(unsigned long *)ptr;
+ *(unsigned long *)ptr = temp;
+ break;
+ }
+ local_irq_restore(flags); /* restore irq enable bit */
+ return x;
+}
+
+#include <asm-generic/cmpxchg-local.h>
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n) \
+ ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
+ (unsigned long)(n), sizeof(*(ptr))))
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+
+#ifndef CONFIG_SMP
+#include <asm-generic/cmpxchg.h>
+#endif
+
+#define arch_align_stack(x) (x)
+
+void default_idle(void);
+
+#endif
--
cgit v1.2.1