patch-2.4.22 linux-2.4.22/arch/parisc/math-emu/fpudispatch.c

• Lines: 47
• Date: 2003-08-25 04:44:40.000000000 -0700
• Orig file: linux-2.4.21/arch/parisc/math-emu/fpudispatch.c
• Orig date: 2002-11-28 15:53:10.000000000 -0800

diff -urN linux-2.4.21/arch/parisc/math-emu/fpudispatch.c linux-2.4.22/arch/parisc/math-emu/fpudispatch.c
@@ -22,7 +22,7 @@
  * BEGIN_DESC
  *
  *  File:
- *	@(#)	pa/fp/fpudispatch.c		$Revision: 1.1 $
+ *	@(#)	pa/fp/fpudispatch.c		$Revision: $
  *
  *  Purpose:
  *	<<please update with a synopsis of the functionality provided by this file>>
@@ -51,6 +51,7 @@
 
 #include "float.h"
 #include "types.h"
+#include <asm/processor.h>
 /* #include <sys/debug.h> */
 /* #include <machine/sys/mdep_private.h> */
 
@@ -166,6 +167,20 @@
 
 #define VASSERT(x)
 
+static void parisc_linux_get_fpu_type(u_int fpregs[])
+{
+	/* on pa-linux the fpu type is not filled in by the
+	 * caller; it is constructed here  
+	 */ 
+	if (boot_cpu_data.cpu_type == pcxs)
+		fpregs[FPU_TYPE_FLAG_POS] = TIMEX_EXTEN_FLAG;
+	else if (boot_cpu_data.cpu_type == pcxt ||
+	         boot_cpu_data.cpu_type == pcxt_)
+		fpregs[FPU_TYPE_FLAG_POS] = ROLEX_EXTEN_FLAG;
+	else if (boot_cpu_data.cpu_type >= pcxu)
+		fpregs[FPU_TYPE_FLAG_POS] = PA2_0_FPU_FLAG;
+}
+
 /*
  * this routine will decode the excepting floating point instruction and
  * call the approiate emulation routine.
@@ -184,6 +199,8 @@
 	/* All FP emulation code assumes that ints are 4-bytes in length */
 	VASSERT(sizeof(int) == 4);
 
+	parisc_linux_get_fpu_type(fpregs);
+
 	fpu_type_flags=fpregs[FPU_TYPE_FLAG_POS];  /* get fpu type flags */
 
 	class = get_class(ir);