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authorRalf Baechle <ralf@linux-mips.org>1999-08-18 23:37:42 +0000
committerRalf Baechle <ralf@linux-mips.org>1999-08-18 23:37:42 +0000
commit794ff4dc959a8dfef4f704ef6a5bb7334e421623 (patch)
tree9ea4d7f31e69420a29819a7e4c88e4097aa4380f /arch/mips/kernel/r4k_fpu.S
parent8b92ed51419c907aa453c063b0afaefaef268c02 (diff)
- Drop support for 32/32 fp register model
- Fix siginfo structure definition - Ptrace fixes, one of them was an uninitialized pointer. - Header file fixes. - Fixes to linker scripts required for new binutils. - MIPS64. Chainsaw edition. Btw, Harald, why does the kernel no longer compile ...
Diffstat (limited to 'arch/mips/kernel/r4k_fpu.S')
-rw-r--r--arch/mips/kernel/r4k_fpu.S50
1 files changed, 3 insertions, 47 deletions
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index dbd2eba43..39ec93b57 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -10,7 +10,7 @@
* Multi-arch abstraction and asm macros for easier reading:
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
*
- * $Id: r4k_fpu.S,v 1.5 1999/05/01 22:40:36 ralf Exp $
+ * $Id: r4k_fpu.S,v 1.6 1999/08/09 19:43:15 harald Exp $
*/
#include <asm/asm.h>
#include <asm/fpregdef.h>
@@ -28,28 +28,7 @@
.set mips3
/* Save floating point context */
LEAF(save_fp_context)
- mfc0 t1,CP0_STATUS
- sll t2,t1,5
-
- bgez t2,1f
- cfc1 t1,fcr31
- /* Store the 16 odd double precision registers */
- EX(sdc1 $f1,(SC_FPREGS+8)(a0))
- EX(sdc1 $f3,(SC_FPREGS+24)(a0))
- EX(sdc1 $f5,(SC_FPREGS+40)(a0))
- EX(sdc1 $f7,(SC_FPREGS+56)(a0))
- EX(sdc1 $f9,(SC_FPREGS+72)(a0))
- EX(sdc1 $f11,(SC_FPREGS+88)(a0))
- EX(sdc1 $f13,(SC_FPREGS+104)(a0))
- EX(sdc1 $f15,(SC_FPREGS+120)(a0))
- EX(sdc1 $f17,(SC_FPREGS+136)(a0))
- EX(sdc1 $f19,(SC_FPREGS+152)(a0))
- EX(sdc1 $f21,(SC_FPREGS+168)(a0))
- EX(sdc1 $f23,(SC_FPREGS+184)(a0))
- EX(sdc1 $f25,(SC_FPREGS+200)(a0))
- EX(sdc1 $f27,(SC_FPREGS+216)(a0))
- EX(sdc1 $f29,(SC_FPREGS+232)(a0))
- EX(sdc1 $f31,(SC_FPREGS+248)(a0))
+ cfc1 t1,fcr31
/* Store the 16 even double precision registers */
1:
@@ -88,30 +67,7 @@ LEAF(save_fp_context)
* stack frame which might have been changed by the user.
*/
LEAF(restore_fp_context)
- mfc0 t1, CP0_STATUS
- sll t0,t1,5
- bgez t0,1f
- EX(lw t0,SC_FPC_CSR(a0))
-
- /* Restore the 16 odd double precision registers only
- * when enabled in the cp0 status register.
- */
- EX(ldc1 $f1,(SC_FPREGS+8)(a0))
- EX(ldc1 $f3,(SC_FPREGS+24)(a0))
- EX(ldc1 $f5,(SC_FPREGS+40)(a0))
- EX(ldc1 $f7,(SC_FPREGS+56)(a0))
- EX(ldc1 $f9,(SC_FPREGS+72)(a0))
- EX(ldc1 $f11,(SC_FPREGS+88)(a0))
- EX(ldc1 $f13,(SC_FPREGS+104)(a0))
- EX(ldc1 $f15,(SC_FPREGS+120)(a0))
- EX(ldc1 $f17,(SC_FPREGS+136)(a0))
- EX(ldc1 $f19,(SC_FPREGS+152)(a0))
- EX(ldc1 $f21,(SC_FPREGS+168)(a0))
- EX(ldc1 $f23,(SC_FPREGS+184)(a0))
- EX(ldc1 $f25,(SC_FPREGS+200)(a0))
- EX(ldc1 $f27,(SC_FPREGS+216)(a0))
- EX(ldc1 $f29,(SC_FPREGS+232)(a0))
- EX(ldc1 $f31,(SC_FPREGS+248)(a0))
+ EX(lw t0,SC_FPC_CSR(a0))
/*
* Restore the 16 even double precision registers