diff options
Diffstat (limited to 'arch/powerpc/oprofile/op_model_cell.c')
| -rw-r--r-- | arch/powerpc/oprofile/op_model_cell.c | 49 |
1 files changed, 33 insertions, 16 deletions
diff --git a/arch/powerpc/oprofile/op_model_cell.c b/arch/powerpc/oprofile/op_model_cell.c index 8d4a9586464..e08e1d7b3dc 100644 --- a/arch/powerpc/oprofile/op_model_cell.c +++ b/arch/powerpc/oprofile/op_model_cell.c @@ -39,6 +39,9 @@ #include "../platforms/cell/interrupt.h" #define PPU_CYCLES_EVENT_NUM 1 /* event number for CYCLES */ +#define PPU_CYCLES_GRP_NUM 1 /* special group number for identifying + * PPU_CYCLES event + */ #define CBE_COUNT_ALL_CYCLES 0x42800000 /* PPU cycle event specifier */ #define NUM_THREADS 2 /* number of physical threads in @@ -62,7 +65,7 @@ struct pmc_cntrl_data { struct pm_signal { u16 cpu; /* Processor to modify */ u16 sub_unit; /* hw subunit this applies to (if applicable) */ - u16 signal_group; /* Signal Group to Enable/Disable */ + short int signal_group; /* Signal Group to Enable/Disable */ u8 bus_word; /* Enable/Disable on this Trace/Trigger/Event * Bus Word(s) (bitmask) */ @@ -179,26 +182,40 @@ static void pm_rtas_reset_signals(u32 node) static void pm_rtas_activate_signals(u32 node, u32 count) { int ret; - int j; + int i, j; struct pm_signal pm_signal_local[NR_PHYS_CTRS]; + /* There is no debug setup required for the cycles event. + * Note that only events in the same group can be used. + * Otherwise, there will be conflicts in correctly routing + * the signals on the debug bus. It is the responsiblity + * of the OProfile user tool to check the events are in + * the same group. + */ + i = 0; for (j = 0; j < count; j++) { - /* fw expects physical cpu # */ - pm_signal_local[j].cpu = node; - pm_signal_local[j].signal_group - = pm_signal[j].signal_group; - pm_signal_local[j].bus_word = pm_signal[j].bus_word; - pm_signal_local[j].sub_unit = pm_signal[j].sub_unit; - pm_signal_local[j].bit = pm_signal[j].bit; + if (pm_signal[j].signal_group != PPU_CYCLES_GRP_NUM) { + + /* fw expects physical cpu # */ + pm_signal_local[i].cpu = node; + pm_signal_local[i].signal_group + = pm_signal[j].signal_group; + pm_signal_local[i].bus_word = pm_signal[j].bus_word; + pm_signal_local[i].sub_unit = pm_signal[j].sub_unit; + pm_signal_local[i].bit = pm_signal[j].bit; + i++; + } } - ret = rtas_ibm_cbe_perftools(SUBFUNC_ACTIVATE, PASSTHRU_ENABLE, - pm_signal_local, - count * sizeof(struct pm_signal)); + if (i != 0) { + ret = rtas_ibm_cbe_perftools(SUBFUNC_ACTIVATE, PASSTHRU_ENABLE, + pm_signal_local, + i * sizeof(struct pm_signal)); - if (ret) - printk(KERN_WARNING "%s: rtas returned: %d\n", - __FUNCTION__, ret); + if (ret) + printk(KERN_WARNING "%s: rtas returned: %d\n", + __FUNCTION__, ret); + } } /* @@ -215,7 +232,7 @@ static void set_pm_event(u32 ctr, int event, u32 unit_mask) /* Special Event: Count all cpu cycles */ pm_regs.pm07_cntrl[ctr] = CBE_COUNT_ALL_CYCLES; p = &(pm_signal[ctr]); - p->signal_group = 21; + p->signal_group = PPU_CYCLES_GRP_NUM; p->bus_word = 1; p->sub_unit = 0; p->bit = 0; |