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a=ed25519-sha256; t=1788788886; l=2134; i=sneh.mankad@oss.qualcomm.com; s=20250818; h=from:subject:message-id; bh=DnfQwTEmrf/W25KWsSddiMvJISba920uiYCjJKXhz30=; b=svLLQoyardTL5+bd9UHuyiaIKiaacATqA1UXVL0d9vq5z8r2g36Ald4NfkbnaQY8FIyj9Dtdx 4tk9nAUQ8FqDnX5ReQXwgf0h1KBRUHtQZ8+DQcUx1KcZ4GuqSK1QFoR X-Developer-Key: i=sneh.mankad@oss.qualcomm.com; a=ed25519; pk=sv57EGwdcfnp6xJmoBCIT1JFSqWI+gawRHkJWj/T2B0= X-Proofpoint-ORIG-GUID: cRzYgaybPIbMc_YiZu2msXZRgnBamTDX X-Authority-Analysis: v=2.4 cv=U+aiy+ru c=1 sm=1 tr=0 ts=6a9ec09f cx=c_pps a=RP+M6JBNLl+fLTcSJhASfg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=omfX-2x44LNwICN2mL0A:9 a=QEXdDO2ut3YA:10 a=iS9zxrgQBfv6-_F4QbHw:22 X-Proofpoint-GUID: cRzYgaybPIbMc_YiZu2msXZRgnBamTDX X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA3MDE1MyBTYWx0ZWRfX+VzGsL25Wubo JdvFBZTzjTIZ2sJtIJCyPDPF2ZHiqXZ5aMMidJTwO5ln/dl+GDUnUTq0mD6c/0lqML0YiEBaLEu XiNYRb0KUO+ZDyFUX38PIAywc1B/Lnw= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA3MDE1MyBTYWx0ZWRfX1+hdvpKOMyGq pfRhWLguPhyLjFqtTjZErDygPcvDoqjG3Fok6ADZGC+42wc+QavvTVEiYu72o/5CHsCn7B0bGVS bjA0QfASVBfRCjpW0dILyBwB3k5M0GMtGMsDxi+XYajJ/PBm/3xMuqKg8MnVgQNjfbIMZDJ/zVJ 1+HQEAnIW0NwH8XAwp9ngx/WX8vVrANxIUhUF7KU4FNUp0iQ9RryopfhumQtZG0gl7eAN4gwVp6 v54AweKvPF0kRpf5K27AOiDue2+4V1hSW4S6/SPhZ9EUeT2eBzYMCQQhWdf/VafuKe1doyStMqj 6MYiuOtWgDv9QAkkjjO/2rjsk4LVnoFb14QTZei3fWXtjaV8xZfKMfgsiKWRbL2ZuCM5hjqDI5R 3J5A+pQmHS7G+wpTXhit1PXoT0phdlBUwSc59stdUheI8j1mLqWAEPRaOnxoddbSqQ0vUdKVMVV nTk8XVSDTjRznASUspg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-07_04,2026-09-07_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 priorityscore=1501 lowpriorityscore=0 clxscore=1015 impostorscore=0 adultscore=0 bulkscore=0 spamscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609070153 SoC LPM stats are present in RPM MSGRAM and subsystem LPM stats are present in SMEM for Shikra. A generic "qcom,rpm-stats" compatible only reads SoC LPM stats like vmin and vlow. Document shikra rpm compatible to read subsystem LPM stats too along with SoC LPM stats. Keep "qcom,rpm-stats" as a fallback for RPM targets, so that SoC level stats are still shown even without subsystem level stats support. A plain enum can't express that, since it caps compatible at one item. Add a oneOf branch with items for this pattern. Signed-off-by: Sneh Mankad Reviewed-by: Komal Bajaj --- .../devicetree/bindings/soc/qcom/qcom-stats.yaml | 25 ++++++++++++++----= ---- 1 file changed, 16 insertions(+), 9 deletions(-) diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml b/D= ocumentation/devicetree/bindings/soc/qcom/qcom-stats.yaml index 686a7ef2f48af11a0e63904ff979e40d7538de65..b384a5983d43358d9fceb6fa305= f20d6a0c76504 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml +++ b/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml @@ -18,15 +18,22 @@ description: =20 properties: compatible: - enum: - - qcom,rpmh-stats - - qcom,sdm845-rpmh-stats - - qcom,rpm-stats - # For older RPM firmware versions with fixed offset for the sleep st= ats - - qcom,apq8084-rpm-stats - - qcom,msm8226-rpm-stats - - qcom,msm8916-rpm-stats - - qcom,msm8974-rpm-stats + oneOf: + - enum: + - qcom,rpmh-stats + - qcom,sdm845-rpmh-stats + - qcom,rpm-stats + # For older RPM firmware versions with fixed offset for the slee= p stats + - qcom,apq8084-rpm-stats + - qcom,msm8226-rpm-stats + - qcom,msm8916-rpm-stats + - qcom,msm8974-rpm-stats + # SoC-specific compatibles that also read subsystem-level stats, + # falling back to "qcom,rpm-stats" for SoC-level stats only + - items: + - enum: + - qcom,shikra-rpm-stats + - const: qcom,rpm-stats =20 reg: maxItems: 1 --=20 2.34.1 From nobody Fri Sep 25 23:10:04 2026 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4D11E471CF0 for ; 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For earlier targets using RPM processor like msm8974, rpm_master_stat.c was used for subsystem LPM stats since those stats were populated in RPM MSGRAM. Here is a brief summary of previous targets and their stats configuration, along with the drivers used to display them. +---------------|----------------------------|---------------------------+ | SoC | subsystem LPM stats | SoC LPM stats | |---------------|----------------------------|---------------------------| | msm8974, | RPM processor MSGRAM | RPM processor MSGRAM | | msm8226 | (rpm_master_stat.c) | (qcom_stats.c) | |---------------|----------------------------|---------------------------| | sm6350, | SMEM (DDR) | AOP processor MSGRAM | | sdm845, etc. | (qcom_stats.c) | (qcom_stats.c) | |---------------|----------------------------|---------------------------| | Shikra | SMEM (DDR) | RPM processor MSGRAM | | | (qcom_stats.c) | (qcom_stats.c) | +---------------|----------------------------|---------------------------+ qcom_stats.c supports both the configurations for shikra, reading subsystem LPM stats from SMEM and reading SoC LPM stats from RPM MSGRAM. A generic "qcom,rpm-stats" compatible only reads SoC LPM stats like vmin and vlow. Add shikra rpm compatible and config to read subsystem LPM stats too along with SoC LPM stats. Below is an example showing LPM stats for "apss" subsystem with this change: cat /sys/kernel/debug/qcom_stats/apss Count: 2192 Last Entered At: 5498618336 Last Exited At: 5498708046 Accumulated Duration: 2046572620. Reviewed-by: Konrad Dybcio Reviewed-by: Maulik Shah Signed-off-by: Sneh Mankad Reviewed-by: Abel Vesa Reviewed-by: Komal Bajaj --- drivers/soc/qcom/qcom_stats.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/soc/qcom/qcom_stats.c b/drivers/soc/qcom/qcom_stats.c index 2e380faf9080354fae120e74f0b9bd1f3786d3e5..2f1615e583bbc6ea596d8b73d9b= b0a2a00953cfb 100644 --- a/drivers/soc/qcom/qcom_stats.c +++ b/drivers/soc/qcom/qcom_stats.c @@ -376,6 +376,14 @@ static const struct stats_config rpm_data_dba0 =3D { .subsystem_stats_in_smem =3D false, }; =20 +static const struct stats_config rpm_data_shikra =3D { + .stats_offset =3D 0, + .num_records =3D 2, + .appended_stats_avail =3D true, + .dynamic_offset =3D true, + .subsystem_stats_in_smem =3D true, +}; + static const struct stats_config rpmh_data_sdm845 =3D { .stats_offset =3D 0x48, .num_records =3D 2, @@ -401,6 +409,7 @@ static const struct of_device_id qcom_stats_table[] =3D= { { .compatible =3D "qcom,rpm-stats", .data =3D &rpm_data }, { .compatible =3D "qcom,rpmh-stats", .data =3D &rpmh_data }, { .compatible =3D "qcom,sdm845-rpmh-stats", .data =3D &rpmh_data_sdm845 }, + { .compatible =3D "qcom,shikra-rpm-stats", .data =3D &rpm_data_shikra }, { } }; 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Shikra SoC specific compatible allows reading individual subsystem level LPM stats along with SoC level LPM stats. Change it. Keep "qcom,rpm-stats" as fallback compatible. Reviewed-by: Konrad Dybcio Signed-off-by: Sneh Mankad Reviewed-by: Abel Vesa Reviewed-by: Komal Bajaj --- arch/arm64/boot/dts/qcom/shikra.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/shikra.dtsi b/arch/arm64/boot/dts/qco= m/shikra.dtsi index 4e5bc9e17c8ed8914733ac9fdc9b69128b40216e..b299f316e3c61858c4b380f6211= d0f36ef9fecf9 100644 --- a/arch/arm64/boot/dts/qcom/shikra.dtsi +++ b/arch/arm64/boot/dts/qcom/shikra.dtsi @@ -535,7 +535,7 @@ apss_mpm: sram@1b8 { }; =20 sram@4690000 { - compatible =3D "qcom,rpm-stats"; + compatible =3D "qcom,shikra-rpm-stats", "qcom,rpm-stats"; reg =3D <0x0 0x04690000 0x0 0x14000>; }; =20 --=20 2.34.1