From patchwork Fri Jun 18 22:56:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 463433 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7A64C48BDF for ; Fri, 18 Jun 2021 22:56:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B2F2F613C1 for ; Fri, 18 Jun 2021 22:56:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235101AbhFRW6h (ORCPT ); Fri, 18 Jun 2021 18:58:37 -0400 Received: from relay07.th.seeweb.it ([5.144.164.168]:35601 "EHLO relay07.th.seeweb.it" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231270AbhFRW6e (ORCPT ); Fri, 18 Jun 2021 18:58:34 -0400 Received: from IcarusMOD.eternityproject.eu (unknown [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by m-r2.th.seeweb.it (Postfix) with ESMTPSA id B67083F325; Sat, 19 Jun 2021 00:56:22 +0200 (CEST) From: AngeloGioacchino Del Regno To: bjorn.andersson@linaro.org Cc: agross@kernel.org, daniel.lezcano@linaro.org, rjw@rjwysocki.net, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, phone-devel@vger.kernel.org, konrad.dybcio@somainline.org, marijn.suijten@somainline.org, martin.botka@somainline.org, jeffrey.l.hugo@gmail.com, jamipkettunen@somainline.org, ~postmarketos/upstreaming@lists.sr.ht, stephan@gerhold.net, AngeloGioacchino Del Regno Subject: [PATCH v5 0/3] Implement SPM/SAW for MSM8998 and SDM6xx Date: Sat, 19 Jun 2021 00:56:17 +0200 Message-Id: <20210618225620.623359-1-angelogioacchino.delregno@somainline.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Changes in v5: - Fixed contamination from patch 2/3 in patch 1/3 - Fixed missing bits in cpuidle-qcom-spm (thanks Stephan) Changes in v4: - Huge patch series has been split for better reviewability, as suggested by Bjorn Changes in v3: - Rebased (no changes - was in previous series' v3) Changes in v2: - Fixed MSM8998 SAW parameters on SPM driver Tested on the following smartphones: - Sony Xperia XA2 (SDM630) - Sony Xperia XA2 Ultra (SDM630) - Sony Xperia 10 (SDM630) - Sony Xperia XZ Premium (MSM8998) - F(x)Tec Pro 1 (MSM8998) This is a component that we can find on very old chips, like MSM8974; there, it has been used to actually do the power scaling basically "on its own" - sending the cores in a specific sleep mode to save power. On the newer ones, including MSM8998, SDM630, 660 and others, it is still present! Though, this time, it's being used for the cluster caches and it has a different firmware (and maybe it's also slightly different HW), implementing the SAWv4.1 set and getting controlled *not by the OS* but by other controllers in the SoC (like the OSM). Contrary from MSM8974 and the like, this new version of the SPM just requires us to set the initial parameters for AVS and *nothing else*, as its states will be totally managed internally. AngeloGioacchino Del Regno (3): cpuidle: qcom_spm: Detach state machine from main SPM handling soc: qcom: spm: Implement support for SAWv4.1, SDM630/660 L2 AVS soc: qcom: spm: Add compatible for MSM8998 SAWv4.1 L2 drivers/cpuidle/Kconfig.arm | 1 + drivers/cpuidle/cpuidle-qcom-spm.c | 295 ++++++----------------------- drivers/soc/qcom/Kconfig | 9 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/spm.c | 240 +++++++++++++++++++++++ include/soc/qcom/spm.h | 45 +++++ 6 files changed, 355 insertions(+), 236 deletions(-) create mode 100644 drivers/soc/qcom/spm.c create mode 100644 include/soc/qcom/spm.h