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[PATCH] powerpc: G4+ oprofile support

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This patch adds oprofile support for the 7450 and all its multitudinous
derivatives.

* Added 7450 (and derivatives) support for oprofile
* Changed e500 cputable to have oprofile model and cpu_type fields
* Added support for classic 32-bit performance monitor interrupt
* Cleaned up common powerpc oprofile code to be as common as possible
* Cleaned up oprofile_impl.h to reflect 32 bit classic code
* Added 32-bit MMCRx bitfield definitions and SPR numbers

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Andy Fleming
2005-12-15 20:02:04 -06:00
committed by Paul Mackerras
parent e5cd040409
commit 555d97ac87
9 changed files with 344 additions and 84 deletions
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31
include/asm-powerpc/oprofile_impl.h
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@@ -22,24 +22,22 @@ struct op_counter_config {
unsigned long enabled;
unsigned long event;
unsigned long count;
/* Classic doesn't support per-counter user/kernel selection */
unsigned long kernel;
#ifdef __powerpc64__
/* We dont support per counter user/kernel selection */
#endif
unsigned long user;
unsigned long unit_mask;
};
/* System-wide configuration as set via oprofilefs. */
struct op_system_config {
#ifdef __powerpc64__
#ifdef CONFIG_PPC64
unsigned long mmcr0;
unsigned long mmcr1;
unsigned long mmcra;
#endif
unsigned long enable_kernel;
unsigned long enable_user;
#ifdef __powerpc64__
#ifdef CONFIG_PPC64
unsigned long backtrace_spinlocks;
#endif
};
@@ -49,9 +47,7 @@ struct op_powerpc_model {
void (*reg_setup) (struct op_counter_config *,
struct op_system_config *,
int num_counters);
#ifdef __powerpc64__
void (*cpu_setup) (void *);
#endif
void (*start) (struct op_counter_config *);
void (*stop) (void);
void (*handle_interrupt) (struct pt_regs *,
@@ -59,10 +55,19 @@ struct op_powerpc_model {
int num_counters;
};
#ifdef __powerpc64__
#ifdef CONFIG_FSL_BOOKE
extern struct op_powerpc_model op_model_fsl_booke;
#else /* Otherwise, it's classic */
#ifdef CONFIG_PPC64
extern struct op_powerpc_model op_model_rs64;
extern struct op_powerpc_model op_model_power4;
#else /* Otherwise, CONFIG_PPC32 */
extern struct op_powerpc_model op_model_7450;
#endif
/* All the classic PPC parts use these */
static inline unsigned int ctr_read(unsigned int i)
{
switch(i) {
@@ -78,10 +83,14 @@ static inline unsigned int ctr_read(unsigned int i)
return mfspr(SPRN_PMC5);
case 5:
return mfspr(SPRN_PMC6);
/* No PPC32 chip has more than 6 so far */
#ifdef CONFIG_PPC64
case 6:
return mfspr(SPRN_PMC7);
case 7:
return mfspr(SPRN_PMC8);
#endif
default:
return 0;
}
@@ -108,16 +117,20 @@ static inline void ctr_write(unsigned int i, unsigned int val)
case 5:
mtspr(SPRN_PMC6, val);
break;
/* No PPC32 chip has more than 6, yet */
#ifdef CONFIG_PPC64
case 6:
mtspr(SPRN_PMC7, val);
break;
case 7:
mtspr(SPRN_PMC8, val);
break;
#endif
default:
break;
}
}
#endif /* __powerpc64__ */
#endif /* !CONFIG_FSL_BOOKE */
#endif /* _ASM_POWERPC_OPROFILE_IMPL_H */