fpudevprocio is a function pointer now.  ironicly this was done to
reduce churn.  :-(.

Reference: /n/atom/patch/applied2013/armfpudevproc
Date: Thu Jun 13 17:29:26 CES 2013
Signed-off-by: quanstro@quanstro.net

--- /sys/src/9/teg2/softfpu.c	Thu Jun 13 17:29:16 2013
+++ /sys/src/9/teg2/softfpu.c	Thu Jun 13 17:29:16 2013
@@ -4,21 +4,6 @@
 #include "dat.h"
 #include "fns.h"
 
-int
-fpudevprocio(Proc* proc, void* a, long n, uintptr offset, int write)
-{
-	/*
-	 * Called from procdevtab.read and procdevtab.write
-	 * allow user process access to the FPU registers.
-	 * This is the only FPU routine which is called directly
-	 * from the port code; it would be nice to have dynamic
-	 * creation of entries in the device file trees...
-	 */
-	USED(proc, a, n, offset, write);
-
-	return 0;
-}
-
 void
 fpunotify(Ureg*)
 {
--- /sys/src/9/teg2/fns.h	Thu Jun 13 17:29:16 2013
+++ /sys/src/9/teg2/fns.h	Thu Jun 13 17:29:16 2013
@@ -169,7 +169,6 @@
 
 
 extern int fpiarm(Ureg*);
-extern int fpudevprocio(Proc*, void*, long, uintptr, int);
 extern void fpuinit(void);
 extern void fpunoted(void);
 extern void fpunotify(Ureg*);
--- /sys/src/9/omap/softfpu.c	Thu Jun 13 17:29:16 2013
+++ /sys/src/9/omap/softfpu.c	Thu Jun 13 17:29:16 2013
@@ -4,21 +4,6 @@
 #include "dat.h"
 #include "fns.h"
 
-int
-fpudevprocio(Proc* proc, void* a, long n, uintptr offset, int write)
-{
-	/*
-	 * Called from procdevtab.read and procdevtab.write
-	 * allow user process access to the FPU registers.
-	 * This is the only FPU routine which is called directly
-	 * from the port code; it would be nice to have dynamic
-	 * creation of entries in the device file trees...
-	 */
-	USED(proc, a, n, offset, write);
-
-	return 0;
-}
-
 void
 fpunotify(Ureg*)
 {
--- /sys/src/9/omap/fns.h	Thu Jun 13 17:29:16 2013
+++ /sys/src/9/omap/fns.h	Thu Jun 13 17:29:16 2013
@@ -71,13 +71,6 @@
 extern int tas(void *);
 extern u32int ttbget(void);
 extern void ttbput(u32int);
-
-Dev*		devtabget(int, int);
-void		devtabinit(void);
-void		devtabreset(void);
-long		devtabread(Chan*, void*, long, vlong);
-void		devtabshutdown(void);
-
 extern void intrclear(int sort, int v);
 extern void intrenable(int sort, int v, void (*f)(Ureg*, void*), void *a, char *name);
 extern void intrdisable(int sort, int v, void (*f)(Ureg*, void*), void* a, char *name);
@@ -95,7 +88,6 @@
 extern void trapinit(void);
 
 extern int fpiarm(Ureg*);
-extern int fpudevprocio(Proc*, void*, long, uintptr, int);
 extern void fpuinit(void);
 extern void fpunoted(void);
 extern void fpunotify(Ureg*);
--- /sys/src/9/kw/softfpu.c	Thu Jun 13 17:29:16 2013
+++ /sys/src/9/kw/softfpu.c	Thu Jun 13 17:29:16 2013
@@ -4,21 +4,6 @@
 #include "dat.h"
 #include "fns.h"
 
-int
-fpudevprocio(Proc* proc, void* a, long n, uintptr offset, int write)
-{
-	/*
-	 * Called from procdevtab.read and procdevtab.write
-	 * allow user process access to the FPU registers.
-	 * This is the only FPU routine which is called directly
-	 * from the port code; it would be nice to have dynamic
-	 * creation of entries in the device file trees...
-	 */
-	USED(proc, a, n, offset, write);
-
-	return 0;
-}
-
 void
 fpunotify(Ureg*)
 {
--- /sys/src/9/kw/fns.h	Thu Jun 13 17:29:16 2013
+++ /sys/src/9/kw/fns.h	Thu Jun 13 17:29:16 2013
@@ -71,13 +71,6 @@
 extern int tas(void *);
 extern u32int ttbget(void);
 extern void ttbput(u32int);
-
-Dev*		devtabget(int, int);
-void		devtabinit(void);
-void		devtabreset(void);
-long		devtabread(Chan*, void*, long, vlong);
-void		devtabshutdown(void);
-
 extern void intrclear(int sort, int v);
 extern void intrenable(int sort, int v, void (*f)(Ureg*, void*), void *a, char *name);
 extern void intrdisable(int sort, int v, void (*f)(Ureg*, void*), void* a, char *name);
@@ -95,7 +88,6 @@
 extern void trapinit(void);
 
 extern int fpiarm(Ureg*);
-extern int fpudevprocio(Proc*, void*, long, uintptr, int);
 extern void fpuinit(void);
 extern void fpunoted(void);
 extern void fpunotify(Ureg*);