| Message ID | 20191230050008.8143-3-sibis@codeaurora.org (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Introduce Protection Domain Restart (PDR) Helpers | expand |
On Mon, Dec 30, 2019 at 10:30:07AM +0530, Sibi Sankar wrote: > Add optional "qcom,protection-domain" bindings for APR services. This > helps to capture the dependencies between APR services and the PD on > which each apr service run. This is meaningless to me... > Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> > Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> > Signed-off-by: Sibi Sankar <sibis@codeaurora.org> > --- > .../devicetree/bindings/soc/qcom/qcom,apr.txt | 59 +++++++++++++++++++ > 1 file changed, 59 insertions(+) > > diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt > index db501269f47b8..f87c0b2a48de4 100644 > --- a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt > +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt > @@ -45,6 +45,12 @@ by the individual bindings for the specific service > 12 - Ultrasound stream manager. > 13 - Listen stream manager. > > +- qcom,protection-domain > + Usage: optional > + Value type: <stringlist> > + Definition: Must list the protection domain service name and path > + that the particular apr service has a dependency on. How many strings can there be and can you enumerate the possible strings? > + > = EXAMPLE > The following example represents a QDSP based sound card on a MSM8996 device > which uses apr as communication between Apps and QDSP. > @@ -82,3 +88,56 @@ which uses apr as communication between Apps and QDSP. > ... > }; > }; > + > += EXAMPLE 2 > +The following example represents a QDSP based sound card on SDM845 device. > +Here the apr services are dependent on "avs/audio" service running on AUDIO > +Protection Domain hosted on ADSP remote processor. > + > + apr { > + compatible = "qcom,apr-v2"; > + qcom,glink-channels = "apr_audio_svc"; > + qcom,apr-domain = <APR_DOMAIN_ADSP>; > + > + q6core { > + compatible = "qcom,q6core"; > + reg = <APR_SVC_ADSP_CORE>; > + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; > + }; > + > + q6afe: q6afe { > + compatible = "qcom,q6afe"; > + reg = <APR_SVC_AFE>; > + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; > + q6afedai: dais { > + compatible = "qcom,q6afe-dais"; > + #sound-dai-cells = <1>; > + > + qi2s@22 { > + reg = <22>; > + qcom,sd-lines = <3>; > + }; > + }; > + }; > + > + q6asm: q6asm { > + compatible = "qcom,q6asm"; > + reg = <APR_SVC_ASM>; > + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; > + q6asmdai: dais { > + compatible = "qcom,q6asm-dais"; > + #sound-dai-cells = <1>; > + iommus = <&apps_smmu 0x1821 0x0>; > + }; > + }; > + > + q6adm: q6adm { > + compatible = "qcom,q6adm"; > + reg = <APR_SVC_ADM>; > + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; Perhaps an example where not everything is the same. The example shows me this isn't needed in DT. > + q6routing: routing { > + compatible = "qcom,q6adm-routing"; > + #sound-dai-cells = <0>; > + }; > + }; > + }; > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project >
Hey Rob, Thanks for the review! On 1/31/20 8:04 PM, Rob Herring wrote: > On Mon, Dec 30, 2019 at 10:30:07AM +0530, Sibi Sankar wrote: >> Add optional "qcom,protection-domain" bindings for APR services. This >> helps to capture the dependencies between APR services and the PD on >> which each apr service run. > > This is meaningless to me... Qualcomm SoCs (starting with MSM8998) allow for multiple protection domains (PDs) to run on the same Q6 sub-system. This allows for services like AVS AUDIO to have their own separate address space and crash/recover without disrupting the other PDs running on the same Q6 ADSP. Add "qcom,protection-domain" bindings to capture the dependencies between the APR service and the PD on which the apr service runs. Is ^^ better? > >> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> >> Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> >> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> >> --- >> .../devicetree/bindings/soc/qcom/qcom,apr.txt | 59 +++++++++++++++++++ >> 1 file changed, 59 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt >> index db501269f47b8..f87c0b2a48de4 100644 >> --- a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt >> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt >> @@ -45,6 +45,12 @@ by the individual bindings for the specific service >> 12 - Ultrasound stream manager. >> 13 - Listen stream manager. >> >> +- qcom,protection-domain >> + Usage: optional >> + Value type: <stringlist> >> + Definition: Must list the protection domain service name and path >> + that the particular apr service has a dependency on. > > How many strings can there be and can you enumerate the possible > strings? https://lore.kernel.org/lkml/a19623d4-ab33-d87e-5925-d0411d7479dd@codeaurora.org/ Like I explained in ^^ avs/audio is the only service that the apr device depends on and is known to run only in "msm/adsp/audio_pd" service path. However there are other service:service_path pairs which will get documented when I add support for more clients like fastrpc and ath10k. > >> + >> = EXAMPLE >> The following example represents a QDSP based sound card on a MSM8996 device >> which uses apr as communication between Apps and QDSP. >> @@ -82,3 +88,56 @@ which uses apr as communication between Apps and QDSP. >> ... >> }; >> }; >> + >> += EXAMPLE 2 >> +The following example represents a QDSP based sound card on SDM845 device. >> +Here the apr services are dependent on "avs/audio" service running on AUDIO >> +Protection Domain hosted on ADSP remote processor. >> + >> + apr { >> + compatible = "qcom,apr-v2"; >> + qcom,glink-channels = "apr_audio_svc"; >> + qcom,apr-domain = <APR_DOMAIN_ADSP>; >> + >> + q6core { >> + compatible = "qcom,q6core"; >> + reg = <APR_SVC_ADSP_CORE>; >> + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; >> + }; >> + >> + q6afe: q6afe { >> + compatible = "qcom,q6afe"; >> + reg = <APR_SVC_AFE>; >> + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; >> + q6afedai: dais { >> + compatible = "qcom,q6afe-dais"; >> + #sound-dai-cells = <1>; >> + >> + qi2s@22 { >> + reg = <22>; >> + qcom,sd-lines = <3>; >> + }; >> + }; >> + }; >> + >> + q6asm: q6asm { >> + compatible = "qcom,q6asm"; >> + reg = <APR_SVC_ASM>; >> + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; >> + q6asmdai: dais { >> + compatible = "qcom,q6asm-dais"; >> + #sound-dai-cells = <1>; >> + iommus = <&apps_smmu 0x1821 0x0>; >> + }; >> + }; >> + >> + q6adm: q6adm { >> + compatible = "qcom,q6adm"; >> + reg = <APR_SVC_ADM>; >> + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; > > Perhaps an example where not everything is the same. The example shows > me this isn't needed in DT. yes will update the example. > >> + q6routing: routing { >> + compatible = "qcom,q6adm-routing"; >> + #sound-dai-cells = <0>; >> + }; >> + }; >> + }; >> -- >> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, >> a Linux Foundation Collaborative Project >>
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt index db501269f47b8..f87c0b2a48de4 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt @@ -45,6 +45,12 @@ by the individual bindings for the specific service 12 - Ultrasound stream manager. 13 - Listen stream manager. +- qcom,protection-domain + Usage: optional + Value type: <stringlist> + Definition: Must list the protection domain service name and path + that the particular apr service has a dependency on. + = EXAMPLE The following example represents a QDSP based sound card on a MSM8996 device which uses apr as communication between Apps and QDSP. @@ -82,3 +88,56 @@ which uses apr as communication between Apps and QDSP. ... }; }; + += EXAMPLE 2 +The following example represents a QDSP based sound card on SDM845 device. +Here the apr services are dependent on "avs/audio" service running on AUDIO +Protection Domain hosted on ADSP remote processor. + + apr { + compatible = "qcom,apr-v2"; + qcom,glink-channels = "apr_audio_svc"; + qcom,apr-domain = <APR_DOMAIN_ADSP>; + + q6core { + compatible = "qcom,q6core"; + reg = <APR_SVC_ADSP_CORE>; + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; + }; + + q6afe: q6afe { + compatible = "qcom,q6afe"; + reg = <APR_SVC_AFE>; + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; + q6afedai: dais { + compatible = "qcom,q6afe-dais"; + #sound-dai-cells = <1>; + + qi2s@22 { + reg = <22>; + qcom,sd-lines = <3>; + }; + }; + }; + + q6asm: q6asm { + compatible = "qcom,q6asm"; + reg = <APR_SVC_ASM>; + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; + q6asmdai: dais { + compatible = "qcom,q6asm-dais"; + #sound-dai-cells = <1>; + iommus = <&apps_smmu 0x1821 0x0>; + }; + }; + + q6adm: q6adm { + compatible = "qcom,q6adm"; + reg = <APR_SVC_ADM>; + qcom,protection-domain = "avs/audio", "msm/adsp/audio_pd"; + q6routing: routing { + compatible = "qcom,q6adm-routing"; + #sound-dai-cells = <0>; + }; + }; + };