1. Split fp.h into fp.h and fsr.h so that the latter can be included

   in asm files.
2. Temporarily cause subnormal operands in floating point operations
   to be treated as zeros so that comlpetion of the operation does not
   need to be emulated.
3. Catch fp_exception_other and correctly skip over the unfinished
   instruction, but basically ignore them.  Emulating the instruction
   is not yet supported.
4. Zero td_retval[1] as well in syscall().

Submitted by:	tmm (2, 3)

1 files changed, 8 insertions, 38 deletions

diff --git a/sys/sparc64/include/fp.h b/sys/sparc64/include/fp.h
index 699dba836ea9..ebb801f8ed0d 100644
--- a/sys/sparc64/include/fp.h
+++ b/sys/sparc64/include/fp.h
@@ -27,43 +27,6 @@
 #ifndef	_MACHINE_FP_H_
 #define	_MACHINE_FP_H_
 
-#define	FPRS_DL		(1 << 0)
-#define	FPRS_DU		(1 << 1)
-#define	FPRS_FEF	(1 << 2)
-
-#define	FSR_CEXC_NX	(1 << 0)
-#define	FSR_CEXC_DZ	(1 << 1)
-#define	FSR_CEXC_UF	(1 << 2)
-#define	FSR_CEXC_OF	(1 << 3)
-#define	FSR_CEXC_NV	(1 << 4)
-#define	FSR_AEXC_NX	(1 << 5)
-#define	FSR_AEXC_DZ	(1 << 6)
-#define	FSR_AEXC_UF	(1 << 7)
-#define	FSR_AEXC_OF	(1 << 8)
-#define	FSR_AEXC_NV	(1 << 9)
-#define	FSR_QNE		(1 << 13)
-#define	FSR_NS		(1 << 22)
-#define	FSR_TEM_NX	(1 << 23)
-#define	FSR_TEM_DZ	(1 << 24)
-#define	FSR_TEM_UF	(1 << 25)
-#define	FSR_TEM_OF	(1 << 26)
-#define	FSR_TEM_NV	(1 << 27)
-
-#define	FSR_FCC0_SHIFT	10
-#define	FSR_FCC0(x)	(((x) >> FSR_FCC0_SHIFT) & 3)
-#define	FSR_FTT_SHIFT	14
-#define	FSR_FTT(x)	(((x) >> FSR_FTT_SHIFT) & 7)
-#define	FSR_VER_SHIFT	17
-#define	FSR_VER(x)	(((x) >> FSR_VER_SHIFT) & 7)
-#define	FSR_RD_SHIFT	30
-#define	FSR_RD(x)	(((x) >> FSR_RD_SHIFT) & 3)
-#define	FSR_FCC1_SHIFT	32
-#define	FSR_FCC1(x)	(((x) >> FSR_FCC1_SHIFT) & 3)
-#define	FSR_FCC2_SHIFT	34
-#define	FSR_FCC2(x)	(((x) >> FSR_FCC2_SHIFT) & 3)
-#define	FSR_FCC3_SHIFT	36
-#define	FSR_FCC3(x)	(((x) >> FSR_FCC3_SHIFT) & 3)
-
 /* A block of 8 double-precision (16 single-precision) FP registers. */
 struct fpblock {
 	u_long	fpq_l[8];
@@ -75,8 +38,14 @@ struct fpstate {
 	u_long	fp_fprs;
 };
 
+#ifdef _KERNEL
+
+struct pcb;
+struct thread;
+
 void	fp_init_thread(struct pcb *);
-int	fp_enable_thread(struct thread *);
+int	fp_enable_thread(struct thread *, struct trapframe *);
+int	fp_exception_other(struct thread *, struct trapframe *);
 /*
  * Note: The pointers passed to the next two functions must be aligned on
  * 64 byte boundaries.
@@ -84,4 +53,5 @@ int	fp_enable_thread(struct thread *);
 void	savefpctx(struct fpstate *);
 void	restorefpctx(struct fpstate *);
 
+#endif /* _KERNEL */
 #endif /* !_MACHINE_FP_H_ */