diff options
| author |   Anton Blanchard <anton@samba.org> | 2006-06-10 20:18:39 +1000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2006-06-15 19:31:25 +1000 |
| commit | 3a2c48cfc97f9046abbd810f1efb1aa824bcfaf1 (patch) | |
| tree | afcd54f2ad36353abcf2282fdf15a05e77fcba4a /arch | |
| parent | [POWERPC] Editable kernel command-line in zImage binary. (diff) | |
| download | linux-dev-3a2c48cfc97f9046abbd810f1efb1aa824bcfaf1.tar.xz linux-dev-3a2c48cfc97f9046abbd810f1efb1aa824bcfaf1.zip | |
[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')
| -rw-r--r-- | arch/powerpc/kernel/fpu.S | 6 | ||||
| -rw-r--r-- | arch/powerpc/kernel/vector.S | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S index 340730fb8c91..01f71200c603 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 66b3d03c5fa5..9416b4ab92ec 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) |