* [PATCH v2] arm64: perf: remove unsupported events for Cortex-A73
@ 2017-11-15 7:39 Xu YiPing
2017-11-15 17:52 ` Will Deacon
0 siblings, 1 reply; 3+ messages in thread
From: Xu YiPing @ 2017-11-15 7:39 UTC (permalink / raw)
To: linux-arm-kernel
bus access read/write events are not supported in A73, based on the
Cortex-A73 TRM r0p2, section 11.9 Events (pages 11-457 to 11-460).
Fixes: 5561b6c5e981 "arm64: perf: add support for Cortex-A73"
Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
---
arch/arm64/kernel/perf_event.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 9eaef51..3affca3 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -262,12 +262,6 @@ static const unsigned armv8_a73_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD,
[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR,
-
- [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
- [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
-
- [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD,
- [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR,
};
static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
--
2.7.4
^ permalink raw reply related [flat|nested] 3+ messages in thread
* [PATCH v2] arm64: perf: remove unsupported events for Cortex-A73
2017-11-15 7:39 [PATCH v2] arm64: perf: remove unsupported events for Cortex-A73 Xu YiPing
@ 2017-11-15 17:52 ` Will Deacon
2017-11-16 9:28 ` Julien Thierry
0 siblings, 1 reply; 3+ messages in thread
From: Will Deacon @ 2017-11-15 17:52 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Nov 15, 2017 at 03:39:26PM +0800, Xu YiPing wrote:
> bus access read/write events are not supported in A73, based on the
> Cortex-A73 TRM r0p2, section 11.9 Events (pages 11-457 to 11-460).
>
> Fixes: 5561b6c5e981 "arm64: perf: add support for Cortex-A73"
> Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
> ---
> arch/arm64/kernel/perf_event.c | 6 ------
> 1 file changed, 6 deletions(-)
Julien -- can I have your ack on this, please?
Will
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v2] arm64: perf: remove unsupported events for Cortex-A73
2017-11-15 17:52 ` Will Deacon
@ 2017-11-16 9:28 ` Julien Thierry
0 siblings, 0 replies; 3+ messages in thread
From: Julien Thierry @ 2017-11-16 9:28 UTC (permalink / raw)
To: linux-arm-kernel
On 15/11/17 17:52, Will Deacon wrote:
> On Wed, Nov 15, 2017 at 03:39:26PM +0800, Xu YiPing wrote:
>> bus access read/write events are not supported in A73, based on the
>> Cortex-A73 TRM r0p2, section 11.9 Events (pages 11-457 to 11-460).
>>
>> Fixes: 5561b6c5e981 "arm64: perf: add support for Cortex-A73"
>> Signed-off-by: Xu YiPing <xuyiping@hisilicon.com>
>> ---
>> arch/arm64/kernel/perf_event.c | 6 ------
>> 1 file changed, 6 deletions(-)
>
> Julien -- can I have your ack on this, please?
Yes, of course.
Acked-by: Julien Thierry <julien.thierry@arm.com>
>
> Will
>
--
Julien Thierry
^ permalink raw reply [flat|nested] 3+ messages in thread
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