Changes in v15: - Address Doug's comments on change 3 of v14 and add Reviewed-by - Split change 4 of v14 to save drv->base in a new change - Address Doug's comments on change 4, 5, 6 of v14 - Add missing NOTIFY_OK for rpmh_flush() success case - First 5 changes in this series can be merged without change 6 and 7 Changes in v14: - Address Doug's comments on change 3 from v13 - Drop new APIs for start and end transaction from change 4 in v13 - Update change 4 to use cpu pm notifications instead - Add [5] as change 5 to enable use of WAKE TCS when ACTIVE TCS count is 0 - Add change 6 to Allow multiple WAKE TCS to be used as ACTIVE TCSes - First 4 changes can be merged even without change 5 and 6. Changes in v13: - Address Stephen's comment to maintain COMPILE_TEST - Address Doug's comments and add new APIs for start and end transaction Changes in v12: - Kconfig change to remove COMPILE_TEST was dropped in v11, reinclude it. Changes in v11: - Address Doug's comments on change 2 and 3 - Include change to invalidate TCSes before flush from [4] Changes in v10: - Address Evan's comments to update commit message on change 2 - Add Evan's Reviewed by on change 2 - Remove comment from rpmh_flush() related to last CPU invoking it - Rebase all changes on top of next-20200302 Changes in v9: - Keep rpmh_flush() to invoke from within cache_lock - Remove comments related to only last cpu invoking rpmh_flush() Changes in v8: - Address Stephen's comments on changes 2 and 3 - Add Reviewed by from Stephen on change 1 Changes in v7: - Address Srinivas's comments to update commit text - Add Reviewed by from Srinivas Changes in v6: - Drop 1 & 2 changes from v5 as they already landed in maintainer tree - Drop 3 & 4 changes from v5 as no user at present for power domain in rsc - Rename subject to appropriate since power domain changes are dropped - Rebase other changes on top of next-20200221 Changes in v5: - Add Rob's Acked by on dt-bindings change - Drop firmware psci change - Update cpuidle stats in dtsi to follow PC mode - Include change to update dirty flag when data is updated from [4] - Add change to invoke rpmh_flush when caches are dirty Changes in v4: - Add change to allow hierarchical topology in PC mode - Drop hierarchical domain idle states converter from v3 - Address Merge sc7180 dtsi change to add low power modes Changes in v3: - Address Rob's comment on dt property value - Address Stephen's comments on rpmh-rsc driver change - Include sc7180 cpuidle low power mode changes from [1] - Include hierarchical domain idle states converter change from [2] Changes in v2: - Add Stephen's Reviewed-By to the first three patches - Addressed Stephen's comments on fourth patch - Include changes to connect rpmh domain to cpuidle and genpds Resource State Coordinator (RSC) is responsible for powering off/lowering the requirements from CPU subsystem for the associated hardware like buses, clocks, and regulators when all CPUs and cluster is powered down. RSC power domain uses last-man activities provided by genpd framework based on Ulf Hansoon's patch series[3], when the cluster of CPUs enter deepest idle states. As a part of domain poweroff, RSC can lower resource state requirements by flushing the cached sleep and wake state votes for various resources. [1] https://patchwork.kernel.org/patch/11218965 [2] https://patchwork.kernel.org/patch/10941671 [3] https://patchwork.kernel.org/project/linux-arm-msm/list/?series=222355 [4] https://patchwork.kernel.org/project/linux-arm-msm/list/?series=236503 [5] https://patchwork.kernel.org/patch/10818129 Maulik Shah (6): arm64: dts: qcom: sc7180: Add cpuidle low power states soc: qcom: rpmh: Update dirty flag only when data changes soc: qcom: rpmh: Invalidate SLEEP and WAKE TCSes before flushing new data soc: qcom: rpmh-rsc: Save base address of drv soc: qcom: rpmh: Invoke rpmh_flush() for dirty caches soc: qcom: rpmh-rsc: Allow using free WAKE TCS for active request Raju P.L.S.S.S.N (1): soc: qcom: rpmh-rsc: Clear active mode configuration for wake TCS arch/arm64/boot/dts/qcom/sc7180.dtsi | 78 +++++++++++++ drivers/soc/qcom/rpmh-internal.h | 27 +++-- drivers/soc/qcom/rpmh-rsc.c | 210 ++++++++++++++++++++++++++++------- drivers/soc/qcom/rpmh.c | 76 ++++++------- 4 files changed, 299 insertions(+), 92 deletions(-) -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
