static irqreturn_t px_pmu_isr(struct pt_regs * const regs,
unsigned int pid,
unsigned int tid,
unsigned int cpu,
unsigned long long ts)
{
u32 pmnc_value;
u32 flag_value;
unsigned int i;
unsigned int reg_id;
bool buffer_full = false;
char ** bt_buffer = &per_cpu(g_bt_buffer, cpu);
PXD32_CSS_Call_Stack_V2 *css_data = (PXD32_CSS_Call_Stack_V2 *)*bt_buffer;
/* disable the counters */
pmnc_value = PJ4_Read_PMNC();
pmnc_value &= ~0x1;
PJ4_Write_PMNC(pmnc_value);
/* clear the overflow flag */
flag_value = PJ4_Read_FLAG();
PJ4_Write_FLAG(0xffffffff);
if (flag_value != 0)
backtrace(regs, cpu, pid, tid, css_data);
if ((flag_value & 0x80000000) && es[COUNTER_PJ4_PMU_CCNT].enabled)
{
reg_id = COUNTER_PJ4_PMU_CCNT;
/* ccnt overflow */
if (es[reg_id].calibration == false)
{
/* write css data in non-calibration mode */
if (!buffer_full)
{
fill_css_data_head(css_data, pid, tid, reg_id, ts);
buffer_full |= write_css_data(cpu, css_data);
}
}
else
{
/* calculate the overflow count in calibration mode */
es[reg_id].overflow++;
}
PJ4_WritePMUCounter(reg_id, es[reg_id].reset_value);
}
for (i=0; i<PJ4_PMN_NUM; i++)
{
if (flag_value & (0x1 << i))
{
switch (i)
{
case 0: reg_id = COUNTER_PJ4_PMU_PMN0; break;
case 1: reg_id = COUNTER_PJ4_PMU_PMN1; break;
case 2: reg_id = COUNTER_PJ4_PMU_PMN2; break;
case 3: reg_id = COUNTER_PJ4_PMU_PMN3; break;
default: break;
}
if (es[reg_id].calibration == false)
{
/* write css data in non-calibration mode */
if (!buffer_full)
{
fill_css_data_head(css_data, pid, tid, reg_id, ts);
buffer_full |= write_css_data(cpu, css_data);
}
}
else
{
/* calculate the overflow count in calibration mode */
es[reg_id].overflow++;
}
PJ4_WritePMUCounter(reg_id, es[reg_id].reset_value);
}
}
if (!buffer_full)
{
/* enable the counters */
pmnc_value |= 0x1;
PJ4_Write_PMNC(pmnc_value);
}
return IRQ_HANDLED;
}
static irqreturn_t px_pmu_isr(unsigned int pid,
unsigned int tid,
unsigned int pc,
unsigned int timestamp)
{
u32 pmnc_value;
u32 flag_value;
unsigned int i;
bool buffer_full = false;
PXD32_Hotspot_Sample sample_rec;
/* disable the counters */
pmnc_value = PJ4_Read_PMNC();
pmnc_value &= ~0x1;
PJ4_Write_PMNC(pmnc_value);
/* clear the overflow flag */
flag_value = PJ4_Read_FLAG();
PJ4_Write_FLAG(0x8000000f);
sample_rec.pc = pc;
sample_rec.pid = pid;
sample_rec.tid = tid;
memcpy(sample_rec.timestamp, ×tamp, 3);
if ((flag_value & 0x80000000) && es[COUNTER_PJ4_PMU_CCNT].enabled)
{
sample_rec.registerId = COUNTER_PJ4_PMU_CCNT;
/* ccnt overflow */
if (es[sample_rec.registerId].calibration == false)
{
/* write sample record in non-calibration mode */
buffer_full |= write_sample(&sample_rec);
}
else
{
/* calculate the overflow count in calibration mode */
es[sample_rec.registerId].overflow++;
}
PJ4_WritePMUCounter(sample_rec.registerId, es[sample_rec.registerId].reset_value);
}
for (i=0; i<4; i++)
{
if (flag_value & (0x1 << i))
{
switch (i)
{
case 0: sample_rec.registerId = COUNTER_PJ4_PMU_PMN0; break;
case 1: sample_rec.registerId = COUNTER_PJ4_PMU_PMN1; break;
case 2: sample_rec.registerId = COUNTER_PJ4_PMU_PMN2; break;
case 3: sample_rec.registerId = COUNTER_PJ4_PMU_PMN3; break;
default: break;
}
if (es[sample_rec.registerId].calibration == false)
{
/* write sample record in non-calibration mode */
buffer_full |= write_sample(&sample_rec);
}
else
{
/* calculate the overflow count in calibration mode */
es[sample_rec.registerId].overflow++;
}
PJ4_WritePMUCounter(sample_rec.registerId, es[sample_rec.registerId].reset_value);
}
}
if (!buffer_full)
{
/* enable the counters */
pmnc_value |= 0x1;
PJ4_Write_PMNC(pmnc_value);
}
return IRQ_HANDLED;
}
