On 24.04.2024 12:27, Dmitry Baryshkov wrote:
Protection domain mapper is a QMI service providing mapping between 'protection domains' and services supported / allowed in these domains. For example such mapping is required for loading of the WiFi firmware or for properly starting up the UCSI / altmode / battery manager support. The existing userspace implementation has several issue. It doesn't play well with CONFIG_EXTRA_FIRMWARE, it doesn't reread the JSON files if the firmware location is changed (or if the firmware was not available at the time pd-mapper was started but the corresponding directory is mounted later), etc. However this configuration is largely static and common between different platforms. Provide in-kernel service implementing static per-platform data. Unlike previous revisions of the patchset, this iteration uses static configuration per platform, rather than building it dynamically from the list of DSPs being started. To: Bjorn Andersson <andersson@xxxxxxxxxx> To: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> To: Sibi Sankar <quic_sibis@xxxxxxxxxxx> To: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> Cc: linux-arm-msm@xxxxxxxxxxxxxxx Cc: linux-kernel@xxxxxxxxxxxxxxx Cc: linux-remoteproc@xxxxxxxxxxxxxxx Cc: Johan Hovold <johan+linaro@xxxxxxxxxx> Cc: Xilin Wu <wuxilin123@xxxxxxxxx> Cc: "Bryan O'Donoghue" <bryan.odonoghue@xxxxxxxxxx> -- Changes in v7: - Fixed modular build (Steev) - Link to v6: https://lore.kernel.org/r/20240422-qcom-pd-mapper-v6-0-f96957d01207@xxxxxxxxxx Changes in v6: - Reworked mutex to fix lockdep issue on deregistration - Fixed dependencies between PD-mapper and remoteproc to fix modular builds (Krzysztof) - Added EXPORT_SYMBOL_GPL to fix modular builds (Krzysztof) - Fixed kerneldocs (Krzysztof) - Removed extra pr_debug messages (Krzysztof) - Fixed wcss build (Krzysztof) - Added platforms which do not require protection domain mapping to silence the notice on those platforms - Link to v5: https://lore.kernel.org/r/20240419-qcom-pd-mapper-v5-0-e35b6f847e99@xxxxxxxxxx Changes in v5: - pdr: drop lock in pdr_register_listener, list_lock is already held (Chris Lew) - pd_mapper: reworked to provide static configuration per platform (Bjorn) - Link to v4: https://lore.kernel.org/r/20240311-qcom-pd-mapper-v4-0-24679cca5c24@xxxxxxxxxx Changes in v4: - Fixed missing chunk, reenabled kfree in qmi_del_server (Konrad) - Added configuration for sm6350 (Thanks to Luca) - Removed RFC tag (Konrad) - Link to v3: https://lore.kernel.org/r/20240304-qcom-pd-mapper-v3-0-6858fa1ac1c8@xxxxxxxxxx Changes in RFC v3: - Send start / stop notifications when PD-mapper domain list is changed - Reworked the way PD-mapper treats protection domains, register all of them in a single batch - Added SC7180 domains configuration based on TCL Book 14 GO - Link to v2: https://lore.kernel.org/r/20240301-qcom-pd-mapper-v2-0-5d12a081d9d1@xxxxxxxxxx Changes in RFC v2: - Swapped num_domains / domains (Konrad) - Fixed an issue with battery not working on sc8280xp - Added missing configuration for QCS404
I've tested this series on sdm660 device, with userspace pd-mapper service disabled, and don't see any regressions - e.g Wi-Fi/BT still come online and work as before. Debug logs: https://paste.sr.ht/~minlexx/bd03db4c582a3275078ce4fd05ea76ce46a52b8e Missing cdsp_root and adsp_sensors PDs are not currently an issue, because those are not enabled yet on SDM660 or hard to test, so Tested-by: Alexey Minnekhanov <alexeymin@xxxxxxxxxxxxxxxx> -- Regards, Alexey Minnekhanov postmarketOS developer
