[ALPHA] Use direct calls to titan_ioremap/unmap when building

a titan specific kernel.

arch/alpha/kernel/Makefile

@@ -6,7 +6,7 @@ EXTRA_TARGETS	:= head.o
 
 EXTRA_AFLAGS	:= $(CFLAGS)
 
-export-objs := alpha_ksyms.o
+export-objs := alpha_ksyms.o core_titan.o
 
 obj-y    := entry.o traps.o process.o init_task.o osf_sys.o irq.o \
 	    irq_alpha.o signal.o setup.o ptrace.o time.o semaphore.o \

arch/alpha/kernel/core_titan.c

@@ -5,6 +5,7 @@
  */
 
 #include <linux/config.h>
+#include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/pci.h>
@@ -564,6 +565,8 @@ titan_iounmap(unsigned long addr)
 	if (addr) return vfree((void *)(PAGE_MASK & addr)); 
 }
 
+EXPORT_SYMBOL(titan_ioremap);
+EXPORT_SYMBOL(titan_iounmap);
 
 /*
  * AGP GART Support

include/asm-alpha/core_titan.h

@@ -499,8 +499,8 @@ __EXTERN_INLINE void titan_writeq(u64 b, unsigned long addr)
 #define __writew(x,a)		titan_writew((x),(unsigned long)(a))
 #define __writel(x,a)		titan_writel((x),(unsigned long)(a))
 #define __writeq(x,a)		titan_writeq((x),(unsigned long)(a))
-#define __ioremap(a,s)		alpha_mv.mv_ioremap((unsigned long)(a),(s))
-#define __iounmap(a)		alpha_mv.mv_iounmap((unsigned long)(a))
+#define __ioremap(a,s)		titan_ioremap((unsigned long)(a),(s))
+#define __iounmap(a)		titan_iounmap((unsigned long)(a))
 #define __is_ioaddr(a)		titan_is_ioaddr((unsigned long)(a))
 
 #define inb(port) 		__inb((port))