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[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>
hifive-unleashed-5.1
Stephen Rothwell 2005-09-19 23:28:21 +10:00 committed by Paul Mackerras
parent 86a5cddbd9
commit 82cd02c16b
3 changed files with 7 additions and 20 deletions
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13
arch/powerpc/oprofile/common.c
View File

@ -46,19 +46,12 @@ static void op_handle_interrupt(struct pt_regs *regs)
static int op_powerpc_setup(void)
{
#ifdef __powerpc64__
int err;
/* Grab the hardware */
err = reserve_pmc_hardware(op_handle_interrupt);
if (err)
return err;
#else /* __powerpc64__ */
/* Install our interrupt handler into the existing hook. */
if (request_perfmon_irq(&op_handle_interrupt))
return -EBUSY;
mb();
#endif /* __powerpc64__ */
/* Pre-compute the values to stuff in the hardware registers. */
model->reg_setup(ctr, &sys, model->num_counters);
@ -78,13 +71,7 @@ static int op_powerpc_setup(void)
static void op_powerpc_shutdown(void)
{
#ifdef __powerpc64__
release_pmc_hardware();
#else /* __powerpc64__ */
mb();
/* Remove our interrupt handler. We may be removing this module. */
free_perfmon_irq();
#endif /* __powerpc64__ */
}
static void op_powerpc_cpu_start(void *dummy)

10
arch/ppc/kernel/perfmon.c
View File

@ -61,7 +61,7 @@ void (*perf_irq)(struct pt_regs *) = dummy_perf;
/* Grab the interrupt, if it's free.
* Returns 0 on success, -1 if the interrupt is taken already */
int request_perfmon_irq(void (*handler)(struct pt_regs *))
int reserve_pmc_hardware(void (*handler)(struct pt_regs *))
{
int err = 0;
@ -71,7 +71,7 @@ int request_perfmon_irq(void (*handler)(struct pt_regs *))
perf_irq = handler;
else {
pr_info("perfmon irq already handled by %p\n", perf_irq);
err = -1;
err = -EBUSY;
}
spin_unlock(&perfmon_lock);
@ -79,7 +79,7 @@ int request_perfmon_irq(void (*handler)(struct pt_regs *))
return err;
}
void free_perfmon_irq(void)
void release_pmc_hardware(void)
{
spin_lock(&perfmon_lock);
@ -89,5 +89,5 @@ void free_perfmon_irq(void)
}
EXPORT_SYMBOL(perf_irq);
EXPORT_SYMBOL(request_perfmon_irq);
EXPORT_SYMBOL(free_perfmon_irq);
EXPORT_SYMBOL(reserve_pmc_hardware);
EXPORT_SYMBOL(release_pmc_hardware);

4
include/asm-ppc/perfmon.h
View File

@ -3,8 +3,8 @@
extern void (*perf_irq)(struct pt_regs *);
int request_perfmon_irq(void (*handler)(struct pt_regs *));
void free_perfmon_irq(void);
int reserve_pmc_hardware(void (*handler)(struct pt_regs *));
void release_pmc_hardware(void);
#ifdef CONFIG_FSL_BOOKE
void init_pmc_stop(int ctr);