[PARISC] Disable use of fpregs in pa_memcpy
Disable use of fpregs in pa_memcpy, and turn on the
-mdisable-fpregs flag.
Signed-off-by: Randolph Chung <tausq@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 3b339b1..e3549f4 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -43,7 +43,7 @@
# Currently we save and restore fpregs on all kernel entry/interruption paths.
# If that gets optimized, we might need to disable the use of fpregs in the
# kernel.
-#cflags-y += -mdisable-fpregs
+cflags-y += -mdisable-fpregs
# Without this, "ld -r" results in .text sections that are too big
# (> 0x40000) for branches to reach stubs.
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index feb1b9f..b709803 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -339,6 +339,7 @@
pds = (double *)pcs;
pdd = (double *)pcd;
+#if 0
/* Copy 8 doubles at a time */
while (len >= 8*sizeof(double)) {
register double r1, r2, r3, r4, r5, r6, r7, r8;
@@ -366,6 +367,7 @@
fstdma(d_space, r8, pdd, pmc_store_exc);
len -= 8*sizeof(double);
}
+#endif
pws = (unsigned int *)pds;
pwd = (unsigned int *)pdd;