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MIPS: perf: Add hardware events for P5600 

Add cases in perf_event_mipsxx.c for CPU_P5600. All the event numbers
listed for proAptiv also apply to P5600, so we use mipsxxcore_event_map2
and mipsxxcore_cache_map2 too, but the P5600 has 8-bit event numbers so
bit 8 (256) of the user ABI config is used for the parity bit (to
specify odd/even counter events).

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7242/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
James Hogan 2014-07-04 11:08:57 +01:00 committed by Ralf Baechle
parent 67dca66751
commit 560b461be1
1 changed files with 21 additions and 0 deletions
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21
arch/mips/kernel/perf_event_mipsxx.c
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@ -1386,6 +1386,9 @@ static irqreturn_t mipsxx_pmu_handle_irq(int irq, void *dev)
/* proAptiv */
#define IS_BOTH_COUNTERS_PROAPTIV_EVENT(b) \
((b) == 0 || (b) == 1)
/* P5600 */
#define IS_BOTH_COUNTERS_P5600_EVENT(b) \
((b) == 0 || (b) == 1)
/* 1004K */
#define IS_BOTH_COUNTERS_1004K_EVENT(b) \
@ -1486,6 +1489,19 @@ static const struct mips_perf_event *mipsxx_pmu_map_raw_event(u64 config)
raw_id > 127 ? CNTR_ODD : CNTR_EVEN;
#ifdef CONFIG_MIPS_MT_SMP
raw_event.range = P;
#endif
break;
case CPU_P5600:
/* 8-bit event numbers */
raw_id = config & 0x1ff;
base_id = raw_id & 0xff;
if (IS_BOTH_COUNTERS_P5600_EVENT(base_id))
raw_event.cntr_mask = CNTR_EVEN | CNTR_ODD;
else
raw_event.cntr_mask =
raw_id > 255 ? CNTR_ODD : CNTR_EVEN;
#ifdef CONFIG_MIPS_MT_SMP
raw_event.range = P;
#endif
break;
case CPU_1004K:
@ -1638,6 +1654,11 @@ init_hw_perf_events(void)
mipspmu.general_event_map = &mipsxxcore_event_map2;
mipspmu.cache_event_map = &mipsxxcore_cache_map2;
break;
case CPU_P5600:
mipspmu.name = "mips/P5600";
mipspmu.general_event_map = &mipsxxcore_event_map2;
mipspmu.cache_event_map = &mipsxxcore_cache_map2;
break;
case CPU_1004K:
mipspmu.name = "mips/1004K";
mipspmu.general_event_map = &mipsxxcore_event_map;