[PATCH] parisc: Add user_space macro

Add user_space macro, to determine if we are in a user
versus kernel space.
Committed-by: Carlos O'Donell <carlos@parisc-linux.org>

include/asm-parisc/ptrace.h

@@ -47,6 +47,7 @@ struct pt_regs {
 
 /* XXX should we use iaoq[1] or iaoq[0] ? */
 #define user_mode(regs)			(((regs)->iaoq[0] & 3) ? 1 : 0)
+#define user_space(regs)		(((regs)->iasq[0] != 0) ? 1 : 0)
 #define instruction_pointer(regs)	((regs)->iaoq[0] & ~3)
 #define profile_pc(regs) instruction_pointer(regs)
 extern void show_regs(struct pt_regs *);