diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2001-03-11 21:52:24 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2001-03-11 21:52:24 +0000 |
| commit | 34b560ff2837a78a20af84d332d59ea8a68f277e (patch) | |
| tree | f6f438e7d29711555e773c6db0200f5d11bc25ad /arch/mips/kernel | |
| parent | dd422013dc7f307f70a893fcf18b95c47b144823 (diff) | |
Replace set_cp0_status / set_cp0_config by three functions, clear_cp0_*,
set_cp0_* and change_cp0_* which makes the kernel code somewhat more
readable. Going through the kernel code I notices some stupid abuse of
the old function like set_cp0_status(ST0_BEV, 1) - this clear ST0_BEV
but actually looks like attempting to set it and other abuses, so will
people please look over their code again.
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/process.c | 6 | ||||
| -rw-r--r-- | arch/mips/kernel/signal.c | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/traps.c | 6 |
3 files changed, 7 insertions, 7 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index dd2810109..6cda842fd 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -56,7 +56,7 @@ void exit_thread(void) { /* Forget lazy fpu state */ if (last_task_used_math == current) { - set_cp0_status(ST0_CU1, ST0_CU1); + set_cp0_status(ST0_CU1); __asm__ __volatile__("cfc1\t$0,$31"); last_task_used_math = NULL; } @@ -66,7 +66,7 @@ void flush_thread(void) { /* Forget lazy fpu state */ if (last_task_used_math == current) { - set_cp0_status(ST0_CU1, ST0_CU1); + set_cp0_status(ST0_CU1); __asm__ __volatile__("cfc1\t$0,$31"); last_task_used_math = NULL; } @@ -87,7 +87,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, if (mips_cpu.options & MIPS_CPU_FPU) #endif { - set_cp0_status(ST0_CU1, ST0_CU1); + set_cp0_status(ST0_CU1); save_fp(p); } /* set up new TSS. */ diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index ff7c8d5a8..b91e8a0b9 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -354,7 +354,7 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext *sc) err |= __put_user(owned_fp, &sc->sc_ownedfp); if (current->used_math) { /* fp is active. */ - set_cp0_status(ST0_CU1, ST0_CU1); + set_cp0_status(ST0_CU1); err |= save_fp_context(sc); last_task_used_math = NULL; regs->cp0_status &= ~ST0_CU1; diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 402975288..363dfd778 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -702,7 +702,7 @@ static inline void setup_dedicated_int(void) if(mips_cpu.options & MIPS_CPU_DIVEC) { memcpy((void *)(KSEG0 + 0x200), except_vec4, 8); - set_cp0_cause(CAUSEF_IV, CAUSEF_IV); + set_cp0_cause(CAUSEF_IV); dedicated_iv_available = 1; } } @@ -785,7 +785,7 @@ void __init trap_init(void) EISA_bus = 1; /* Some firmware leaves the BEV flag set, clear it. */ - set_cp0_status(ST0_BEV, 0); + clear_cp0_status(ST0_BEV); /* Copy the generic exception handler code to it's final destination. */ memcpy((void *)(KSEG0 + 0x80), &except_vec1_generic, 0x80); @@ -878,7 +878,7 @@ void __init trap_init(void) * should get some special optimizations. */ write_32bit_cp0_register(CP0_FRAMEMASK, 0); - set_cp0_status(ST0_XX, ST0_XX); + set_cp0_status(ST0_XX); /* * The R10k might even work for Linux/MIPS - but we're paranoid * and refuse to run until this is tested on real silicon |