From 144433218f4e2a68a8ee9a23efc65d781b0f9c3f Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@ozlabs.org>
Date: Fri, 25 Sep 2020 18:14:18 +1000
Subject: [PATCH] tests/trace: Test trace interrupt vs. FP unavailable
 interrupt

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
---
 tests/test_trace.bin         | Bin 11596 -> 11812 bytes
 tests/test_trace.console_out |   1 +
 tests/trace/head.S           |   5 +++++
 tests/trace/trace.c          |  18 ++++++++++++++++++
 4 files changed, 24 insertions(+)

diff --git a/tests/test_trace.bin b/tests/test_trace.bin
index b9a612d6b6df4450a701117064157bb6fd10b545..61fa48b3e6e4a2553a30e0e14727533689f4fc7b 100755
GIT binary patch
delta 663
zcmXX=QAkr!82-=Qb{&(ANxr0W+r8VavwMj>_;8C+TOdq?qzHoWVQUupP#6eZ+Gun5
z;KKstueX9Ml|YcdFdz0{FXDrQLH1IC(u)Mej8&Hwp8jL|;XCL1zyJK-`L?eujLcfn
zSnvG34%x94hVsSLsg9BldFX}|Xvdr3HEGm?L1hgCiWm2lW!At4>T9g3Uc3}}E>+v`
zS7e2K!o}#-k{_7;hAZ|GY!vy&@EOjZC9T||8HRn+%xo3`$|g8BvjAB$0rU3mS3U&P
z5I+ESBp!fDnnB)t)s`=&KrzYhV9DVwide!^><cf5{`Yv)+PAvLX_oCa!P^(#;+3=n
z<7SN?o0C7VGT`^<X;;k!nL|`!!)z4q#6oNe=VIrTY#}dxvfoki9$Na)JSruiWO{&y
zL=puLV<%2}CCG@ZXDK^t@dRaD#~y818Y|#!O$|<v6_nMv+z}tLnqNvz3jBmP=hu@~
z0arAQ4dSkL*UNb&=_aT8<h1#Db+C8YAzf+UTfGbYx?9?7;5j`gXX(GmpF~yW#+)8u
zkLe7_+axD`w;ns?I<>Xq_EdmqCj-dXoWCFr1HM#8`u=5)4=%{*bbFMfewy#t_(NCa
z5u$Y)y9~`WLo|s4M#S}!*eu>MLY?o4!5_{y=pv^uIpy)G5$&szI3q+VKfw^B$@#Rn
msp5nbVFJGydjA4Vgd$43E)&*CGlV^r&>j+Y{&H>!f$AUQ7Sm_|

delta 398
zcmXYqJ4gdT6h&ty*@TFSiyu@l*`FIBv#^Cll&DxJDFiJ9K?EZSVqqf)h9zpDg@r=&
zS=b5@0)`M#)N%_g6iW*`O=p=1@h|IJ^uiquXXd@h&D>3A)6CWnE%9_iTy5Mf1@@#A
zOVz==bj}I^2+HTMtu#PcKBh6)Q7+h~A4b(8yZ6DXTBI5rX;YBvmV|;p;$^t$9;cJg
zp@--a^yxz^Z-J!;O_7l}AtW(TS<jdx89nnSGe7jt^^-)j`p+hjqj@ih!<gO<PkJva
zS<n_%*rf&i;ZBcjCE-z%g|Z{R_rYp-<<#4g_ptgJ6e9{dsKFo)LM7s*90qtu*u*bw
zmwb7o$v3=K=rhc5l`X&HNN1gfzJ=oP0k>T7#So<rc;ULRfVc=<hAL!{Y#1>@EoVsP
zr{k1xfQ&Rs;_%umqz$dLfO5-~m?kX8N^oK{(=1#Y5qbqxqgi_RavY8;+_<myv6XMf
INxK5`3zKSkoB#j-

diff --git a/tests/test_trace.console_out b/tests/test_trace.console_out
index 340756c..25e791c 100644
--- a/tests/test_trace.console_out
+++ b/tests/test_trace.console_out
@@ -5,3 +5,4 @@ test 04:PASS
 test 05:PASS
 test 06:PASS
 test 07:PASS
+test 08:PASS
diff --git a/tests/trace/head.S b/tests/trace/head.S
index d23aeb7..778baaa 100644
--- a/tests/trace/head.S
+++ b/tests/trace/head.S
@@ -214,3 +214,8 @@ test7:
 	bne	1f
 	li	%r3,-1
 1:	blr
+
+	.global	test8
+test8:
+	lfd	%f0,0(%r3)
+	blr
diff --git a/tests/trace/trace.c b/tests/trace/trace.c
index 5f7ae9f..a859f4e 100644
--- a/tests/trace/trace.c
+++ b/tests/trace/trace.c
@@ -8,6 +8,7 @@ extern unsigned long callit(unsigned long arg1, unsigned long arg2,
 			    unsigned long (*fn)(unsigned long, unsigned long),
 			    unsigned long msr, unsigned long *regs);
 
+#define MSR_FP	0x2000
 #define MSR_SE	0x400
 #define MSR_BE	0x200
 
@@ -188,6 +189,22 @@ int trace_test_7(void)
 	return 0;
 }
 
+extern unsigned long test8(unsigned long, unsigned long);
+
+int trace_test_8(void)
+{
+	unsigned long ret;
+	unsigned long regs[2];
+
+	ret = callit(0, 0, test8, (mfmsr() & ~MSR_FP) | MSR_SE, regs);
+	if (ret != 0x800)
+		return ret + 1;
+	ret = callit(0, 0, test8, mfmsr() | MSR_FP | MSR_SE, regs);
+	if (ret != 0xd00)
+		return ret + 2;
+	return 0;
+}
+
 int fail = 0;
 
 void do_test(int num, int (*test)(void))
@@ -217,6 +234,7 @@ int main(void)
 	do_test(5, trace_test_5);
 	do_test(6, trace_test_6);
 	do_test(7, trace_test_7);
+	do_test(8, trace_test_8);
 
 	return fail;
 }