From c98d40a52c9e13578521f4a7ea91427117ec806e Mon Sep 17 00:00:00 2001 From: Sneh Mankad Date: Mon, 7 Sep 2026 19:17:54 +0530 Subject: [PATCH] soc: qcom: stats: Add stats compatible and config for Shikra SoC LPM stats are present in RPM MSGRAM and subsystem LPM stats are present in SMEM for Shikra. 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: Komal Bajaj Reviewed-by: Abel Vesa Link: https://patch.msgid.link/20260907-shikra_stats-v4-2-3825351f9740@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- 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 06923408bfce..3422d6df7b51 100644 --- a/drivers/soc/qcom/qcom_stats.c +++ b/drivers/soc/qcom/qcom_stats.c @@ -371,6 +371,14 @@ static const struct stats_config rpm_data_dba0 = { .subsystem_stats_in_smem = false, }; +static const struct stats_config rpm_data_shikra = { + .stats_offset = 0, + .num_records = 2, + .appended_stats_avail = true, + .dynamic_offset = true, + .subsystem_stats_in_smem = true, +}; + static const struct stats_config rpmh_data_sdm845 = { .stats_offset = 0x48, .num_records = 2, @@ -396,6 +404,7 @@ static const struct of_device_id qcom_stats_table[] = { { .compatible = "qcom,rpm-stats", .data = &rpm_data }, { .compatible = "qcom,rpmh-stats", .data = &rpmh_data }, { .compatible = "qcom,sdm845-rpmh-stats", .data = &rpmh_data_sdm845 }, + { .compatible = "qcom,shikra-rpm-stats", .data = &rpm_data_shikra }, { } }; MODULE_DEVICE_TABLE(of, qcom_stats_table);