tests/fpu: Check setting of FR and FI in FPSCR by frsp instruction

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

tests/fpu/fpu.c

@@ -21,6 +21,8 @@
 #define FPS_VE		0x80
 #define FPS_VXCVI	0x100
 #define FPS_VXSOFT	0x400
+#define FPS_FI		0x20000
+#define FPS_FR		0x40000
 
 extern int trapit(long arg, int (*func)(long));
 extern void do_rfid(unsigned long msr);
@@ -653,29 +655,30 @@ struct roundvals {
 	unsigned long fpscr;
 	unsigned long dpval;
 	unsigned long spval;
+	unsigned long fpscr_fir;
 } roundvals[] = {
-	{ FPS_RN_NEAR,  0, 0 },
-	{ FPS_RN_CEIL,  0x8000000000000000, 0x8000000000000000 },
-	{ FPS_RN_NEAR,  0x402123456789abcd, 0x4021234560000000 },
-	{ FPS_RN_ZERO,  0x402123456789abcd, 0x4021234560000000 },
-	{ FPS_RN_CEIL,  0x402123456789abcd, 0x4021234580000000 },
-	{ FPS_RN_FLOOR, 0x402123456789abcd, 0x4021234560000000 },
-	{ FPS_RN_NEAR,  0x402123457689abcd, 0x4021234580000000 },
-	{ FPS_RN_ZERO,  0x402123457689abcd, 0x4021234560000000 },
-	{ FPS_RN_CEIL,  0x402123457689abcd, 0x4021234580000000 },
-	{ FPS_RN_FLOOR, 0x402123457689abcd, 0x4021234560000000 },
-	{ FPS_RN_NEAR,  0x4021234570000000, 0x4021234580000000 },
-	{ FPS_RN_NEAR,  0x4021234550000000, 0x4021234540000000 },
-	{ FPS_RN_NEAR,  0x7ff123456789abcd, 0x7ff9234560000000 },
-	{ FPS_RN_ZERO,  0x7ffa3456789abcde, 0x7ffa345660000000 },
-	{ FPS_RN_FLOOR, 0x7ff0000000000000, 0x7ff0000000000000 },
-	{ FPS_RN_NEAR,  0x47e1234550000000, 0x47e1234540000000 },
-	{ FPS_RN_NEAR,  0x47f1234550000000, 0x7ff0000000000000 },
-	{ FPS_RN_ZERO,  0x47f1234550000000, 0x47efffffe0000000 },
-	{ FPS_RN_CEIL,  0x47f1234550000000, 0x7ff0000000000000 },
-	{ FPS_RN_FLOOR, 0x47f1234550000000, 0x47efffffe0000000 },
-	{ FPS_RN_NEAR,  0x38012345b0000000, 0x38012345c0000000 },
-	{ FPS_RN_NEAR,  0x37c12345b0000000, 0x37c1234400000000 },
+	{ FPS_RN_NEAR|FPS_FI|FPS_FR,	0, 0, 0 },
+	{ FPS_RN_CEIL|FPS_FI|FPS_FR,	0x8000000000000000, 0x8000000000000000, 0 },
+	{ FPS_RN_NEAR|FPS_FR,		0x402123456789abcd, 0x4021234560000000, FPS_FI },
+	{ FPS_RN_ZERO|FPS_FR,		0x402123456789abcd, 0x4021234560000000, FPS_FI },
+	{ FPS_RN_CEIL,			0x402123456789abcd, 0x4021234580000000, FPS_FR|FPS_FI },
+	{ FPS_RN_FLOOR,			0x402123456789abcd, 0x4021234560000000, FPS_FI },
+	{ FPS_RN_NEAR,			0x402123457689abcd, 0x4021234580000000, FPS_FR|FPS_FI },
+	{ FPS_RN_ZERO|FPS_FR|FPS_FI,	0x402123457689abcd, 0x4021234560000000, FPS_FI },
+	{ FPS_RN_CEIL|FPS_FR,		0x402123457689abcd, 0x4021234580000000, FPS_FR|FPS_FI },
+	{ FPS_RN_FLOOR,			0x402123457689abcd, 0x4021234560000000, FPS_FI },
+	{ FPS_RN_NEAR,			0x4021234570000000, 0x4021234580000000, FPS_FR|FPS_FI },
+	{ FPS_RN_NEAR,			0x4021234550000000, 0x4021234540000000, FPS_FI },
+	{ FPS_RN_NEAR|FPS_FR|FPS_FI,	0x7ff123456789abcd, 0x7ff9234560000000, 0 },
+	{ FPS_RN_ZERO|FPS_FR,		0x7ffa3456789abcde, 0x7ffa345660000000, 0 },
+	{ FPS_RN_FLOOR|FPS_FR|FPS_FI,	0x7ff0000000000000, 0x7ff0000000000000, 0 },
+	{ FPS_RN_NEAR,			0x47e1234550000000, 0x47e1234540000000, FPS_FI },
+	{ FPS_RN_NEAR,			0x47f1234550000000, 0x7ff0000000000000, FPS_FR|FPS_FI },
+	{ FPS_RN_ZERO,			0x47f1234550000000, 0x47efffffe0000000, FPS_FI },
+	{ FPS_RN_CEIL,			0x47f1234550000000, 0x7ff0000000000000, FPS_FR|FPS_FI },
+	{ FPS_RN_FLOOR,			0x47f1234550000000, 0x47efffffe0000000, FPS_FI },
+	{ FPS_RN_NEAR,			0x38012345b0000000, 0x38012345c0000000, FPS_FR|FPS_FI },
+	{ FPS_RN_NEAR,			0x37c12345b0000000, 0x37c1234400000000, FPS_FI },
 };
 
 int test8(long arg)
@@ -696,6 +699,13 @@ int test8(long arg)
 		}
 		if (check_fprf(result, true, fpscr))
 			return i + 0x101;
+		if ((fpscr & (FPS_FR|FPS_FI)) != roundvals[i].fpscr_fir) {
+			print_string("\r\n");
+			print_hex(i, 4, " ");
+			print_hex(fpscr, 8, " ");
+			print_hex(roundvals[i].fpscr_fir, 8, " ");
+			return i + 0x201;
+		}
 	}
 	return 0;
 }