s390x: smp: Dirty fpc before initial reset test
Let's dirty the fpc, before we test if the initial reset sets it to 0.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20200429143518.1360468-3-frankja@linux.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
diff --git a/s390x/smp.c b/s390x/smp.c
index 08fa770..bf082d1 100644
--- a/s390x/smp.c
+++ b/s390x/smp.c
@@ -198,6 +198,7 @@
/* Used to dirty registers of cpu #1 before it is reset */
static void test_func_initial(void)
{
+ asm volatile("sfpc %0" :: "d" (0x11));
lctlg(1, 0x42000UL);
lctlg(7, 0x43000UL);
lctlg(13, 0x44000UL);
