[PATCH] powerpc: reduce oprofile/common.c differences
Rename and slightly modify {request,free}_perfmon_irq in the ppc code. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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@ -46,19 +46,12 @@ static void op_handle_interrupt(struct pt_regs *regs)
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static int op_powerpc_setup(void)
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{
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#ifdef __powerpc64__
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int err;
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/* Grab the hardware */
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err = reserve_pmc_hardware(op_handle_interrupt);
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if (err)
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return err;
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#else /* __powerpc64__ */
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/* Install our interrupt handler into the existing hook. */
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if (request_perfmon_irq(&op_handle_interrupt))
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return -EBUSY;
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mb();
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#endif /* __powerpc64__ */
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/* Pre-compute the values to stuff in the hardware registers. */
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model->reg_setup(ctr, &sys, model->num_counters);
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@ -78,13 +71,7 @@ static int op_powerpc_setup(void)
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static void op_powerpc_shutdown(void)
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{
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#ifdef __powerpc64__
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release_pmc_hardware();
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#else /* __powerpc64__ */
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mb();
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/* Remove our interrupt handler. We may be removing this module. */
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free_perfmon_irq();
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#endif /* __powerpc64__ */
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}
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static void op_powerpc_cpu_start(void *dummy)
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@ -61,7 +61,7 @@ void (*perf_irq)(struct pt_regs *) = dummy_perf;
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/* Grab the interrupt, if it's free.
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* Returns 0 on success, -1 if the interrupt is taken already */
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int request_perfmon_irq(void (*handler)(struct pt_regs *))
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int reserve_pmc_hardware(void (*handler)(struct pt_regs *))
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{
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int err = 0;
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@ -71,7 +71,7 @@ int request_perfmon_irq(void (*handler)(struct pt_regs *))
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perf_irq = handler;
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else {
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pr_info("perfmon irq already handled by %p\n", perf_irq);
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err = -1;
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err = -EBUSY;
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}
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spin_unlock(&perfmon_lock);
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@ -79,7 +79,7 @@ int request_perfmon_irq(void (*handler)(struct pt_regs *))
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return err;
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}
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void free_perfmon_irq(void)
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void release_pmc_hardware(void)
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{
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spin_lock(&perfmon_lock);
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@ -89,5 +89,5 @@ void free_perfmon_irq(void)
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}
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EXPORT_SYMBOL(perf_irq);
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EXPORT_SYMBOL(request_perfmon_irq);
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EXPORT_SYMBOL(free_perfmon_irq);
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EXPORT_SYMBOL(reserve_pmc_hardware);
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EXPORT_SYMBOL(release_pmc_hardware);
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@ -3,8 +3,8 @@
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extern void (*perf_irq)(struct pt_regs *);
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int request_perfmon_irq(void (*handler)(struct pt_regs *));
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void free_perfmon_irq(void);
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int reserve_pmc_hardware(void (*handler)(struct pt_regs *));
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void release_pmc_hardware(void);
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#ifdef CONFIG_FSL_BOOKE
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void init_pmc_stop(int ctr);
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