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authorAnton Blanchard <anton@samba.org>2006-06-10 20:18:39 +1000
committerPaul Mackerras <paulus@samba.org>2006-06-15 19:31:25 +1000
commit3a2c48cfc97f9046abbd810f1efb1aa824bcfaf1 (patch)
treeafcd54f2ad36353abcf2282fdf15a05e77fcba4a /arch/powerpc/kernel
parent30d8caf7c625203b295a78f143820cdc3124830b (diff)
[POWERPC] 64bit FPSCR support
Forthcoming machines will extend the FPSCR to 64 bits. We already had a 64-bit save area for the FPSCR, but we need to use a new form of the mtfsf instruction. Fortunately this new form is decoded as an ordinary mtfsf by existing 64-bit processors. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r--arch/powerpc/kernel/fpu.S6
-rw-r--r--arch/powerpc/kernel/vector.S4
2 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 340730fb8c9..01f71200c60 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -72,7 +72,7 @@ _GLOBAL(load_up_fpu)
std r12,_MSR(r1)
#endif
lfd fr0,THREAD_FPSCR(r5)
- mtfsf 0xff,fr0
+ MTFSF_L(fr0)
REST_32FPRS(0, r5)
#ifndef CONFIG_SMP
subi r4,r5,THREAD
@@ -127,7 +127,7 @@ _GLOBAL(giveup_fpu)
_GLOBAL(cvt_fd)
lfd 0,THREAD_FPSCR(r5) /* load up fpscr value */
- mtfsf 0xff,0
+ MTFSF_L(0)
lfs 0,0(r3)
stfd 0,0(r4)
mffs 0
@@ -136,7 +136,7 @@ _GLOBAL(cvt_fd)
_GLOBAL(cvt_df)
lfd 0,THREAD_FPSCR(r5) /* load up fpscr value */
- mtfsf 0xff,0
+ MTFSF_L(0)
lfd 0,0(r3)
stfs 0,0(r4)
mffs 0
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index 66b3d03c5fa..9416b4ab92e 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -53,12 +53,12 @@ fpenable:
stfd fr31,8(r1)
LDCONST(fr1, fpzero)
mffs fr31
- mtfsf 0xff,fr1
+ MTFSF_L(fr1)
blr
fpdisable:
mtlr r12
- mtfsf 0xff,fr31
+ MTFSF_L(fr31)
lfd fr31,8(r1)
lfd fr1,16(r1)
lfd fr0,24(r1)