mirror of https://gitee.com/openkylin/linux.git
sparc64: Initial niagara2 perf counter support.
Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -102,6 +102,32 @@ static const struct sparc_pmu ultra3i_pmu = {
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.lower_nop = 0x14,
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};
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static const struct perf_event_map niagara2_perfmon_event_map[] = {
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[PERF_COUNT_HW_CPU_CYCLES] = { 0x02ff, PIC_UPPER | PIC_LOWER },
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[PERF_COUNT_HW_INSTRUCTIONS] = { 0x02ff, PIC_UPPER | PIC_LOWER },
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[PERF_COUNT_HW_CACHE_REFERENCES] = { 0x0208, PIC_UPPER | PIC_LOWER },
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[PERF_COUNT_HW_CACHE_MISSES] = { 0x0302, PIC_UPPER | PIC_LOWER },
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[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { 0x0201, PIC_UPPER | PIC_LOWER },
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[PERF_COUNT_HW_BRANCH_MISSES] = { 0x0202, PIC_UPPER | PIC_LOWER },
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};
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static const struct perf_event_map *niagara2_event_map(int event)
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{
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return &niagara2_perfmon_event_map[event];
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}
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static const struct sparc_pmu niagara2_pmu = {
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.event_map = niagara2_event_map,
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.max_events = ARRAY_SIZE(niagara2_perfmon_event_map),
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.upper_shift = 19,
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.lower_shift = 6,
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.event_mask = 0xfff,
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.hv_bit = 0x8,
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.irq_bit = 0x03,
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.upper_nop = 0x220,
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.lower_nop = 0x220,
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};
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static const struct sparc_pmu *sparc_pmu __read_mostly;
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static u64 event_encoding(u64 event, int idx)
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@ -504,6 +530,10 @@ static bool __init supported_pmu(void)
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sparc_pmu = &ultra3i_pmu;
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return true;
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}
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if (!strcmp(sparc_pmu_type, "niagara2")) {
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sparc_pmu = &niagara2_pmu;
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return true;
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}
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return false;
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}
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