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| author | Harald Koerfgen <hkoerfg@web.de> | 2000-12-14 18:54:04 +0000 |
|---|---|---|
| committer | Harald Koerfgen <hkoerfg@web.de> | 2000-12-14 18:54:04 +0000 |
| commit | 920c6058e2a57774263231a6a2c76c4f8b633eaa (patch) | |
| tree | c3ccf2edf9e6bf057a94a5ff35943ce502506ff5 /arch/mips/kernel/r2300_switch.S | |
| parent | 76ffedc03494d66d2d7eeaddf1723c6561a3ce89 (diff) | |
Further R3000 FPU cleanups from Maciej
Diffstat (limited to 'arch/mips/kernel/r2300_switch.S')
| -rw-r--r-- | arch/mips/kernel/r2300_switch.S | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S index 308f672a1..4a546ebb5 100644 --- a/arch/mips/kernel/r2300_switch.S +++ b/arch/mips/kernel/r2300_switch.S @@ -34,9 +34,7 @@ * task_struct *next) */ LEAF(resume) - .set reorder mfc0 t1, CP0_STATUS - .set noreorder sw t1, THREAD_STATUS(a0) CPU_SAVE_NONSCRATCH(a0) sw ra, THREAD_REG31(a0) @@ -57,8 +55,10 @@ LEAF(resume) and a2, a3 or a2, t1 mtc0 a2, CP0_STATUS + .set noreorder jr ra move v0, a0 + .set reorder END(resume) /* @@ -74,18 +74,16 @@ LEAF(lazy_fpu_switch) or t0, t3 mtc0 t0, CP0_STATUS + .set noreorder beqz a0, 2f # Save floating point state nor t3, zero, t3 .set reorder lw t1, ST_OFF(a0) # last thread looses fpu - .set noreorder and t1, t3 sw t1, ST_OFF(a0) FPU_SAVE_SINGLE(a0, t1) # clobbers t1 2: - lwc1 $f0, (THREAD_FPU + 0x00)($28) - .set reorder FPU_RESTORE_SINGLE($28, t0) # clobbers t0 jr ra END(lazy_fpu_switch) @@ -116,8 +114,6 @@ LEAF(restore_fp) #define FPU_DEFAULT 0x00000000 - .set noreorder - LEAF(init_fpu) mfc0 t0, CP0_STATUS li t1, 0x20000000 @@ -160,7 +156,8 @@ LEAF(init_fpu) mtc1 t0, $f28 mtc1 t0, $f29 mtc1 t0, $f30 + .set noreorder jr ra mtc1 t0, $f31 + .set reorder END(init_fpu) - |