Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-um/system-generic.h b/include/asm-um/system-generic.h
new file mode 100644
index 0000000..5bcfa35
--- /dev/null
+++ b/include/asm-um/system-generic.h
@@ -0,0 +1,47 @@
+#ifndef __UM_SYSTEM_GENERIC_H
+#define __UM_SYSTEM_GENERIC_H
+
+#include "asm/arch/system.h"
+
+#undef switch_to
+#undef local_irq_save
+#undef local_irq_restore
+#undef local_irq_disable
+#undef local_irq_enable
+#undef local_save_flags
+#undef local_irq_restore
+#undef local_irq_enable
+#undef local_irq_disable
+#undef local_irq_save
+#undef irqs_disabled
+
+extern void *switch_to(void *prev, void *next, void *last);
+
+extern int get_signals(void);
+extern int set_signals(int enable);
+extern int get_signals(void);
+extern void block_signals(void);
+extern void unblock_signals(void);
+
+#define local_save_flags(flags) do { typecheck(unsigned long, flags); \
+ (flags) = get_signals(); } while(0)
+#define local_irq_restore(flags) do { typecheck(unsigned long, flags); \
+ set_signals(flags); } while(0)
+
+#define local_irq_save(flags) do { local_save_flags(flags); \
+ local_irq_disable(); } while(0)
+
+#define local_irq_enable() unblock_signals()
+#define local_irq_disable() block_signals()
+
+#define irqs_disabled() \
+({ \
+ unsigned long flags; \
+ local_save_flags(flags); \
+ (flags == 0); \
+})
+
+extern void *_switch_to(void *prev, void *next, void *last);
+#define switch_to(prev, next, last) prev = _switch_to(prev, next, last)
+
+#endif