diff options
| author | Yabin Cui <yabinc@google.com> | 2020-11-19 16:34:47 -0800 |
|---|---|---|
| committer | J. Avila <elavila@google.com> | 2020-12-04 21:41:39 +0000 |
| commit | 6f3286756358473aeeb31f13a542bb46dbef734e (patch) | |
| tree | 55e7a8c460fca2bac8084c9f2d4cfbad59b5e770 | |
| parent | 3ea95ad33e9f9c0c179075e0c79e405beef2d2c8 (diff) | |
| download | devicetree-android-msm-redbull-4.19-s-preview-2.tar.gz | |
qcom: lito: Save/restore etm4x regs across low power states.android-s-preview-2_r0.5android-msm-redbull-4.19-s-preview-2
Without saving/restoring etm4x regs, below warning happens when using
etm for self hosted tracing:
[ 42.944512] [<0000000035997548>] coresight_disclaim_device_unlocked+0x1c/0x24
[ 42.951699] [<00000000ab7ae0d4>] etm_event_stop+0xac/0x118
[ 42.957230] [<00000000430cfea7>] etm_event_del+0x10/0x18
[ 42.962593] [<00000000d7ebbe5b>] event_sched_out+0x134/0x238
[ 42.968298] [<00000000bd675d41>] group_sched_out+0x3c/0x98
[ 42.973825] [<0000000053fd85aa>] __perf_event_disable+0x64/0x7c
[ 42.979788] [<00000000b8e69437>] event_function+0xb4/0x100
[ 42.985317] [<00000000eb07d96a>] remote_function+0x48/0x5c
[ 42.990850] [<00000000ee6fb954>] flush_smp_call_function_queue+0xd8/0x16c
[ 42.997683] [<000000008ff95d03>] generic_smp_call_function_single_interrupt+0x10/0x18
[ 43.005561] [<00000000022ebf53>] handle_IPI+0x17c/0x2c8
[ 43.010830] [<0000000046cb4f66>] gic_handle_irq+0xa0/0xb8
[ 43.101516] [<0000000048684b4a>] el1_irq+0xe8/0x18c
[ 43.106447] [<00000000a3d2b4c3>] cpuidle_enter_state+0x2b4/0x338
[ 43.112499] [<00000000db3dcb37>] cpuidle_enter+0x18/0x20
[ 43.117856] [<00000000fce8d8ec>] do_idle+0x1a8/0x28c
[ 43.122864] [<0000000025b0f5d1>] cpu_startup_entry+0x20/0x24
[ 43.128571] [<000000005be37cee>] rest_init+0xc8/0xd4
[ 43.133583] [<00000000e98ad7c3>] start_kernel+0x444/0x4b4
Bug: 167414982
Bug: 170753932
Signed-off-by: Yabin Cui <yabinc@google.com>
Change-Id: Ie2cf42e447cf625f9fae24f9d5551ef5720396e4
| -rw-r--r-- | qcom/lito-coresight.dtsi | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/qcom/lito-coresight.dtsi b/qcom/lito-coresight.dtsi index 7a6131e0..f2dfcccc 100644 --- a/qcom/lito-coresight.dtsi +++ b/qcom/lito-coresight.dtsi @@ -2541,6 +2541,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm0_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm0>; @@ -2561,6 +2563,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm1_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm1>; @@ -2581,6 +2585,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm2_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm2>; @@ -2601,6 +2607,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm3_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm3>; @@ -2621,6 +2629,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm4_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm4>; @@ -2641,6 +2651,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm5_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm5>; @@ -2661,6 +2673,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm6_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm6>; @@ -2681,6 +2695,8 @@ clocks = <&aopcc QDSS_CLK>; clock-names = "apb_pclk"; + arm,coresight-loses-context-with-cpu; + port { etm7_out_funnel_apss: endpoint { remote-endpoint = <&funnel_apss_in_etm7>; |