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Signed-off-by: Sibi Sankar --- .../bindings/mailbox/qcom,cpucp-mbox.yaml | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml diff --git a/Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml b/Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml new file mode 100644 index 000000000000..2617e5555acb --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/qcom,cpucp-mbox.yaml @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/qcom,cpucp-mbox.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm Technologies, Inc. CPUCP Mailbox Controller + +maintainers: + - Sibi Sankar + +description: + The CPUSS Control Processor (CPUCP) mailbox controller enables communication + between AP and CPUCP by acting as a doorbell between them. + +properties: + compatible: + items: + - enum: + - qcom,x1e80100-cpucp-mbox + - const: qcom,cpucp-mbox + + reg: + items: + - description: CPUCP rx register region + - description: CPUCP tx register region + + interrupts: + maxItems: 1 + + "#mbox-cells": + const: 1 + +required: + - compatible + - reg + - interrupts + - "#mbox-cells" + +additionalProperties: false + +examples: + - | + #include + + mailbox@17430000 { + compatible = "qcom,x1e80100-cpucp-mbox", "qcom,cpucp-mbox"; + reg = <0x17430000 0x10000>, <0x18830000 0x300>; + interrupts = ; + #mbox-cells = <1>; + }; From patchwork Wed Jan 17 17:34:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 763320 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 C20C1225D8; 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Signed-off-by: Sibi Sankar --- drivers/mailbox/Kconfig | 8 + drivers/mailbox/Makefile | 2 + drivers/mailbox/qcom-cpucp-mbox.c | 265 ++++++++++++++++++++++++++++++ 3 files changed, 275 insertions(+) create mode 100644 drivers/mailbox/qcom-cpucp-mbox.c diff --git a/drivers/mailbox/Kconfig b/drivers/mailbox/Kconfig index 42940108a187..23741a6f054e 100644 --- a/drivers/mailbox/Kconfig +++ b/drivers/mailbox/Kconfig @@ -273,6 +273,14 @@ config SPRD_MBOX to send message between application processors and MCU. Say Y here if you want to build the Spreatrum mailbox controller driver. +config QCOM_CPUCP_MBOX + tristate "Qualcomm Technologies, Inc. CPUCP mailbox driver" + depends on ARCH_QCOM || COMPILE_TEST + help + Qualcomm Technologies, Inc. CPUSS Control Processor (CPUCP) mailbox + controller driver enables communication between AP and CPUCP. Say + Y here if you want to build this driver. + config QCOM_IPCC tristate "Qualcomm Technologies, Inc. IPCC driver" depends on ARCH_QCOM || COMPILE_TEST diff --git a/drivers/mailbox/Makefile b/drivers/mailbox/Makefile index 18793e6caa2f..53b512800bde 100644 --- a/drivers/mailbox/Makefile +++ b/drivers/mailbox/Makefile @@ -59,4 +59,6 @@ obj-$(CONFIG_SUN6I_MSGBOX) += sun6i-msgbox.o obj-$(CONFIG_SPRD_MBOX) += sprd-mailbox.o +obj-$(CONFIG_QCOM_CPUCP_MBOX) += qcom-cpucp-mbox.o + obj-$(CONFIG_QCOM_IPCC) += qcom-ipcc.o diff --git a/drivers/mailbox/qcom-cpucp-mbox.c b/drivers/mailbox/qcom-cpucp-mbox.c new file mode 100644 index 000000000000..22ea6c802286 --- /dev/null +++ b/drivers/mailbox/qcom-cpucp-mbox.c @@ -0,0 +1,265 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2024, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include + +#define APSS_CPUCP_IPC_CHAN_SUPPORTED 3 +#define APSS_CPUCP_MBOX_CMD_OFF 0x4 + +/* Tx Registers */ +#define APSS_CPUCP_TX_MBOX_IDR 0 +#define APSS_CPUCP_TX_MBOX_CMD 0x100 + +/* Rx Registers */ +#define APSS_CPUCP_RX_MBOX_IDR 0 +#define APSS_CPUCP_RX_MBOX_CMD 0x100 +#define APSS_CPUCP_RX_MBOX_MAP 0x4000 +#define APSS_CPUCP_RX_MBOX_STAT 0x4400 +#define APSS_CPUCP_RX_MBOX_CLEAR 0x4800 +#define APSS_CPUCP_RX_MBOX_EN 0x4C00 +#define APSS_CPUCP_RX_MBOX_CMD_MASK 0xFFFFFFFFFFFFFFFF + +/** + * struct qcom_cpucp_mbox - Holder for the mailbox driver + * @chans: The mailbox channel + * @mbox: The mailbox controller + * @tx_base: Base address of the CPUCP tx registers + * @rx_base: Base address of the CPUCP rx registers + * @dev: Device associated with this instance + * @irq: CPUCP to AP irq + */ +struct qcom_cpucp_mbox { + struct mbox_chan chans[APSS_CPUCP_IPC_CHAN_SUPPORTED]; + struct mbox_controller mbox; + void __iomem *tx_base; + void __iomem *rx_base; + struct device *dev; + int irq; + int num_chan; +}; + +static irqreturn_t qcom_cpucp_mbox_irq_fn(int irq, void *data) +{ + struct qcom_cpucp_mbox *cpucp = data; + u64 status; + u32 val; + int i; + + status = readq(cpucp->rx_base + APSS_CPUCP_RX_MBOX_STAT); + + for (i = 0; i < cpucp->num_chan; i++) { + val = 0; + if (status & ((u64)1 << i)) { + val = readl(cpucp->rx_base + APSS_CPUCP_RX_MBOX_CMD + (i * 8) + APSS_CPUCP_MBOX_CMD_OFF); + if (!IS_ERR(cpucp->chans[i].con_priv)) + mbox_chan_received_data(&cpucp->chans[i], &val); + writeq(status, cpucp->rx_base + APSS_CPUCP_RX_MBOX_CLEAR); + } + } + + return IRQ_HANDLED; +} + +static int qcom_cpucp_mbox_startup(struct mbox_chan *chan) +{ + struct qcom_cpucp_mbox *cpucp = container_of(chan->mbox, struct qcom_cpucp_mbox, mbox); + unsigned long chan_id = (unsigned long)chan->con_priv; + u64 val; + + val = readq(cpucp->rx_base + APSS_CPUCP_RX_MBOX_EN); + val |= ((u64)1 << chan_id); + writeq(val, cpucp->rx_base + APSS_CPUCP_RX_MBOX_EN); + + return 0; +} + +static void qcom_cpucp_mbox_shutdown(struct mbox_chan *chan) +{ + struct qcom_cpucp_mbox *cpucp = container_of(chan->mbox, struct qcom_cpucp_mbox, mbox); + unsigned long chan_id = (unsigned long)chan->con_priv; + u64 val; + + val = readq(cpucp->rx_base + APSS_CPUCP_RX_MBOX_EN); + val &= ~((u64)1 << chan_id); + writeq(val, cpucp->rx_base + APSS_CPUCP_RX_MBOX_EN); + + chan->con_priv = ERR_PTR(-EINVAL); +} + +static int qcom_cpucp_mbox_send_data(struct mbox_chan *chan, void *data) +{ + struct qcom_cpucp_mbox *cpucp = container_of(chan->mbox, struct qcom_cpucp_mbox, mbox); + unsigned long chan_id = (unsigned long)chan->con_priv; + u32 val = (unsigned long)data; + + writel(val, cpucp->tx_base + APSS_CPUCP_TX_MBOX_CMD + (chan_id * 8) + APSS_CPUCP_MBOX_CMD_OFF); + + return 0; +} + +static struct mbox_chan *qcom_cpucp_mbox_xlate(struct mbox_controller *mbox, + const struct of_phandle_args *sp) +{ + unsigned long ind = sp->args[0]; + + if (sp->args_count != 1) + return ERR_PTR(-EINVAL); + + if (ind >= mbox->num_chans) + return ERR_PTR(-EINVAL); + + if (!IS_ERR(mbox->chans[ind].con_priv)) + return ERR_PTR(-EBUSY); + + mbox->chans[ind].con_priv = (void *)ind; + + return &mbox->chans[ind]; +} + +static const struct mbox_chan_ops qcom_cpucp_mbox_chan_ops = { + .startup = qcom_cpucp_mbox_startup, + .send_data = qcom_cpucp_mbox_send_data, + .shutdown = qcom_cpucp_mbox_shutdown +}; + +static int qcom_cpucp_setup_mbox(struct qcom_cpucp_mbox *cpucp) +{ + struct device *dev = cpucp->dev; + struct mbox_controller *mbox; + unsigned long i; + + /* Initialize channel identifiers */ + for (i = 0; i < ARRAY_SIZE(cpucp->chans); i++) + cpucp->chans[i].con_priv = ERR_PTR(-EINVAL); + + mbox = &cpucp->mbox; + mbox->dev = dev; + mbox->num_chans = cpucp->num_chan; + mbox->chans = cpucp->chans; + mbox->ops = &qcom_cpucp_mbox_chan_ops; + mbox->of_xlate = qcom_cpucp_mbox_xlate; + mbox->txdone_irq = false; + mbox->txdone_poll = false; + + return mbox_controller_register(mbox); +} + +static int qcom_cpucp_mbox_probe(struct platform_device *pdev) +{ + struct qcom_cpucp_mbox *cpucp; + struct resource *res; + int ret; + + cpucp = devm_kzalloc(&pdev->dev, sizeof(*cpucp), GFP_KERNEL); + if (!cpucp) + return -ENOMEM; + + cpucp->dev = &pdev->dev; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(&pdev->dev, "Failed to get the cpucp rx base address\n"); + return -ENODEV; + } + + cpucp->rx_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!cpucp->rx_base) { + dev_err(&pdev->dev, "Failed to ioremap cpucp tx base\n"); + return -ENOMEM; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!res) { + dev_err(&pdev->dev, "Failed to get the cpucp tx base address\n"); + return -ENODEV; + } + + cpucp->tx_base = devm_ioremap(&pdev->dev, res->start, resource_size(res)); + if (!cpucp->tx_base) { + dev_err(&pdev->dev, "Failed to ioremap cpucp tx base\n"); + return -ENOMEM; + } + + writeq(0, cpucp->rx_base + APSS_CPUCP_RX_MBOX_EN); + writeq(0, cpucp->rx_base + APSS_CPUCP_RX_MBOX_CLEAR); + writeq(0, cpucp->rx_base + APSS_CPUCP_RX_MBOX_MAP); + + cpucp->irq = platform_get_irq(pdev, 0); + if (cpucp->irq < 0) { + dev_err(&pdev->dev, "Failed to get the IRQ\n"); + return cpucp->irq; + } + + ret = devm_request_irq(&pdev->dev, cpucp->irq, qcom_cpucp_mbox_irq_fn, + IRQF_TRIGGER_HIGH, "apss_cpucp_mbox", cpucp); + if (ret < 0) { + dev_err(&pdev->dev, "Failed to register the irq: %d\n", ret); + return ret; + } + + writeq(APSS_CPUCP_RX_MBOX_CMD_MASK, cpucp->rx_base + APSS_CPUCP_RX_MBOX_MAP); + + cpucp->num_chan = APSS_CPUCP_IPC_CHAN_SUPPORTED; + ret = qcom_cpucp_setup_mbox(cpucp); + if (ret) { + dev_err(&pdev->dev, "Failed to create mailbox\n"); + return ret; + } + + platform_set_drvdata(pdev, cpucp); + + return 0; +} + +static int qcom_cpucp_mbox_remove(struct platform_device *pdev) +{ + struct qcom_cpucp_mbox *cpucp = platform_get_drvdata(pdev); + + mbox_controller_unregister(&cpucp->mbox); + + return 0; +} + +static const struct of_device_id qcom_cpucp_mbox_of_match[] = { + { .compatible = "qcom,cpucp-mbox"}, + {} +}; +MODULE_DEVICE_TABLE(of, qcom_cpucp_mbox_of_match); + +static struct platform_driver qcom_cpucp_mbox_driver = { + .probe = qcom_cpucp_mbox_probe, + .remove = qcom_cpucp_mbox_remove, + .driver = { + .name = "qcom_cpucp_mbox", + .of_match_table = qcom_cpucp_mbox_of_match, + .suppress_bind_attrs = true, + }, +}; + +static int __init qcom_cpucp_mbox_init(void) +{ + int ret; + + ret = platform_driver_register(&qcom_cpucp_mbox_driver); + if (ret) + pr_err("%s: qcom_cpucp_mbox register failed %d\n", __func__, ret); + + return ret; +} +module_init(qcom_cpucp_mbox_init); + +static __exit void qcom_cpucp_mbox_exit(void) +{ + platform_driver_unregister(&qcom_cpucp_mbox_driver); +} +module_exit(qcom_cpucp_mbox_exit); + +MODULE_DESCRIPTION("QTI CPUCP MBOX Driver"); +MODULE_LICENSE("GPL"); From patchwork Wed Jan 17 17:34:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 764311 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 00B3622EE3; 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Wed, 17 Jan 2024 17:35:34 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40HHZXgw015294 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Jan 2024 17:35:33 GMT Received: from hu-sibis-blr.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 17 Jan 2024 09:35:29 -0800 From: Sibi Sankar To: , , , , , , CC: , , , , , , , Amir Vajid Subject: [RFC 3/7] firmware: arm_scmi: Add QCOM vendor protocol Date: Wed, 17 Jan 2024 23:04:54 +0530 Message-ID: <20240117173458.2312669-4-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240117173458.2312669-1-quic_sibis@quicinc.com> References: <20240117173458.2312669-1-quic_sibis@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: fiizNltG2SFv9ixb67SrkEYOAbMjMueW X-Proofpoint-GUID: fiizNltG2SFv9ixb67SrkEYOAbMjMueW X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-17_10,2024-01-17_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 mlxlogscore=999 clxscore=1015 malwarescore=0 bulkscore=0 adultscore=0 spamscore=0 phishscore=0 priorityscore=1501 lowpriorityscore=0 mlxscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401170127 From: Shivnandan Kumar SCMI QCOM vendor protocol provides interface to communicate with SCMI controller and enable vendor specific features like bus scaling capable of running on it. Signed-off-by: Shivnandan Kumar Co-developed-by: Ramakrishna Gottimukkula Signed-off-by: Ramakrishna Gottimukkula Co-developed-by: Amir Vajid Signed-off-by: Amir Vajid Co-developed-by: Sibi Sankar Signed-off-by: Sibi Sankar --- drivers/firmware/arm_scmi/Kconfig | 11 ++ drivers/firmware/arm_scmi/Makefile | 1 + drivers/firmware/arm_scmi/qcom_scmi_vendor.c | 160 +++++++++++++++++++ include/linux/qcom_scmi_vendor.h | 36 +++++ 4 files changed, 208 insertions(+) create mode 100644 drivers/firmware/arm_scmi/qcom_scmi_vendor.c create mode 100644 include/linux/qcom_scmi_vendor.h diff --git a/drivers/firmware/arm_scmi/Kconfig b/drivers/firmware/arm_scmi/Kconfig index aa5842be19b2..86b5d6c18ec4 100644 --- a/drivers/firmware/arm_scmi/Kconfig +++ b/drivers/firmware/arm_scmi/Kconfig @@ -180,4 +180,15 @@ config ARM_SCMI_POWER_CONTROL called scmi_power_control. Note this may needed early in boot to catch early shutdown/reboot SCMI requests. +config QCOM_SCMI_VENDOR_PROTOCOL + tristate "Qualcomm Technologies, Inc. Qcom SCMI vendor Protocol" + depends on ARM || ARM64 || COMPILE_TEST + depends on ARM_SCMI_PROTOCOL + help + The SCMI QCOM vendor protocol provides interface to communicate with SCMI + controller and enable vendor specific features like bus scaling. + + This driver defines the commands or message ID's used for this + communication and also exposes the ops used by the clients. + endmenu diff --git a/drivers/firmware/arm_scmi/Makefile b/drivers/firmware/arm_scmi/Makefile index a7bc4796519c..eaeb788b93c6 100644 --- a/drivers/firmware/arm_scmi/Makefile +++ b/drivers/firmware/arm_scmi/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_ARM_SCMI_PROTOCOL) += scmi-core.o obj-$(CONFIG_ARM_SCMI_PROTOCOL) += scmi-module.o obj-$(CONFIG_ARM_SCMI_POWER_CONTROL) += scmi_power_control.o +obj-$(CONFIG_QCOM_SCMI_VENDOR_PROTOCOL) += qcom_scmi_vendor.o ifeq ($(CONFIG_THUMB2_KERNEL)$(CONFIG_CC_IS_CLANG),yy) # The use of R7 in the SMCCC conflicts with the compiler's use of R7 as a frame diff --git a/drivers/firmware/arm_scmi/qcom_scmi_vendor.c b/drivers/firmware/arm_scmi/qcom_scmi_vendor.c new file mode 100644 index 000000000000..878b99f0d1ef --- /dev/null +++ b/drivers/firmware/arm_scmi/qcom_scmi_vendor.c @@ -0,0 +1,160 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2024, The Linux Foundation. All rights reserved. + */ + +#include + +#include "common.h" + +#define EXTENDED_MSG_ID 0 +#define SCMI_MAX_TX_RX_SIZE 128 +#define PROTOCOL_PAYLOAD_SIZE 16 +#define SET_PARAM 0x10 +#define GET_PARAM 0x11 +#define START_ACTIVITY 0x12 +#define STOP_ACTIVITY 0x13 + +static int qcom_scmi_set_param(const struct scmi_protocol_handle *ph, void *buf, u64 algo_str, + u32 param_id, size_t size) +{ + int ret = -EINVAL; + struct scmi_xfer *t; + u32 *msg; + + if (!ph || !ph->xops) + return ret; + + ret = ph->xops->xfer_get_init(ph, SET_PARAM, size + PROTOCOL_PAYLOAD_SIZE, + SCMI_MAX_TX_RX_SIZE, &t); + if (ret) + return ret; + + msg = t->tx.buf; + *msg++ = cpu_to_le32(EXTENDED_MSG_ID); + *msg++ = cpu_to_le32(algo_str & GENMASK(31, 0)); + *msg++ = cpu_to_le32((algo_str & GENMASK(63, 32)) >> 32); + *msg++ = cpu_to_le32(param_id); + memcpy(msg, buf, size); + ret = ph->xops->do_xfer(ph, t); + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int qcom_scmi_get_param(const struct scmi_protocol_handle *ph, void *buf, u64 algo_str, + u32 param_id, size_t tx_size, size_t rx_size) +{ + int ret = -EINVAL; + struct scmi_xfer *t; + u32 *msg; + + if (!ph || !ph->xops || !buf) + return ret; + + ret = ph->xops->xfer_get_init(ph, GET_PARAM, tx_size + PROTOCOL_PAYLOAD_SIZE, + SCMI_MAX_TX_RX_SIZE, &t); + if (ret) + return ret; + + msg = t->tx.buf; + *msg++ = cpu_to_le32(EXTENDED_MSG_ID); + *msg++ = cpu_to_le32(algo_str & GENMASK(31, 0)); + *msg++ = cpu_to_le32((algo_str & GENMASK(63, 32)) >> 32); + *msg++ = cpu_to_le32(param_id); + memcpy(msg, buf, tx_size); + ret = ph->xops->do_xfer(ph, t); + if (t->rx.len > rx_size) { + pr_err("SCMI received buffer size %zu is more than expected size %zu\n", + t->rx.len, rx_size); + return -EMSGSIZE; + } + memcpy(buf, t->rx.buf, t->rx.len); + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int qcom_scmi_start_activity(const struct scmi_protocol_handle *ph, + void *buf, u64 algo_str, u32 param_id, size_t size) +{ + int ret = -EINVAL; + struct scmi_xfer *t; + u32 *msg; + + if (!ph || !ph->xops) + return ret; + + ret = ph->xops->xfer_get_init(ph, START_ACTIVITY, size + PROTOCOL_PAYLOAD_SIZE, + SCMI_MAX_TX_RX_SIZE, &t); + if (ret) + return ret; + + msg = t->tx.buf; + *msg++ = cpu_to_le32(EXTENDED_MSG_ID); + *msg++ = cpu_to_le32(algo_str & GENMASK(31, 0)); + *msg++ = cpu_to_le32((algo_str & GENMASK(63, 32)) >> 32); + *msg++ = cpu_to_le32(param_id); + memcpy(msg, buf, size); + ret = ph->xops->do_xfer(ph, t); + ph->xops->xfer_put(ph, t); + + return ret; +} + +static int qcom_scmi_stop_activity(const struct scmi_protocol_handle *ph, void *buf, u64 algo_str, + u32 param_id, size_t size) +{ + int ret = -EINVAL; + struct scmi_xfer *t; + u32 *msg; + + if (!ph || !ph->xops) + return ret; + + ret = ph->xops->xfer_get_init(ph, STOP_ACTIVITY, size + PROTOCOL_PAYLOAD_SIZE, + SCMI_MAX_TX_RX_SIZE, &t); + if (ret) + return ret; + + msg = t->tx.buf; + *msg++ = cpu_to_le32(EXTENDED_MSG_ID); + *msg++ = cpu_to_le32(algo_str & GENMASK(31, 0)); + *msg++ = cpu_to_le32((algo_str & GENMASK(63, 32)) >> 32); + *msg++ = cpu_to_le32(param_id); + memcpy(msg, buf, size); + ret = ph->xops->do_xfer(ph, t); + ph->xops->xfer_put(ph, t); + + return ret; +} + +static struct qcom_scmi_vendor_ops qcom_proto_ops = { + .set_param = qcom_scmi_set_param, + .get_param = qcom_scmi_get_param, + .start_activity = qcom_scmi_start_activity, + .stop_activity = qcom_scmi_stop_activity, +}; + +static int qcom_scmi_vendor_protocol_init(const struct scmi_protocol_handle *ph) +{ + u32 version; + + ph->xops->version_get(ph, &version); + + dev_info(ph->dev, "qcom scmi version %d.%d\n", + PROTOCOL_REV_MAJOR(version), PROTOCOL_REV_MINOR(version)); + + return 0; +} + +static const struct scmi_protocol qcom_scmi_vendor = { + .id = QCOM_SCMI_VENDOR_PROTOCOL, + .owner = THIS_MODULE, + .instance_init = &qcom_scmi_vendor_protocol_init, + .ops = &qcom_proto_ops, +}; +module_scmi_protocol(qcom_scmi_vendor); + +MODULE_DESCRIPTION("QTI SCMI vendor protocol"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/qcom_scmi_vendor.h b/include/linux/qcom_scmi_vendor.h new file mode 100644 index 000000000000..bde57bb18367 --- /dev/null +++ b/include/linux/qcom_scmi_vendor.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * QTI SCMI vendor protocol's header + * + * Copyright (c) 2024, The Linux Foundation. All rights reserved. + */ + +#ifndef _QCOM_SCMI_VENDOR_H +#define _QCOM_SCMI_VENDOR_H + +#include +#include +#include + +#define QCOM_SCMI_VENDOR_PROTOCOL 0x80 + +struct scmi_protocol_handle; +extern struct scmi_device *get_qcom_scmi_device(void); + +/** + * struct qcom_scmi_vendor_ops - represents the various operations provided + * by qcom scmi vendor protocol + */ +struct qcom_scmi_vendor_ops { + int (*set_param)(const struct scmi_protocol_handle *ph, void *buf, u64 algo_str, + u32 param_id, size_t size); + int (*get_param)(const struct scmi_protocol_handle *ph, void *buf, u64 algo_str, + u32 param_id, size_t tx_size, size_t rx_size); + int (*start_activity)(const struct scmi_protocol_handle *ph, void *buf, u64 algo_str, + u32 param_id, size_t size); + int (*stop_activity)(const struct scmi_protocol_handle *ph, void *buf, u64 algo_str, + u32 param_id, size_t size); +}; + +#endif /* _QCOM_SCMI_VENDOR_H */ + From patchwork Wed Jan 17 17:34:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 763319 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 D01BE22EFA; 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Wed, 17 Jan 2024 17:35:40 +0000 (GMT) Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 40HHZd0K011767 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 17 Jan 2024 17:35:39 GMT Received: from hu-sibis-blr.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.40; Wed, 17 Jan 2024 09:35:34 -0800 From: Sibi Sankar To: , , , , , , CC: , , , , , , , Amir Vajid Subject: [RFC 4/7] soc: qcom: Utilize qcom scmi vendor protocol for bus dvfs Date: Wed, 17 Jan 2024 23:04:55 +0530 Message-ID: <20240117173458.2312669-5-quic_sibis@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240117173458.2312669-1-quic_sibis@quicinc.com> References: <20240117173458.2312669-1-quic_sibis@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: oEVLx3n43Mf0ni2OJyX0h1PRodf3g0o0 X-Proofpoint-ORIG-GUID: oEVLx3n43Mf0ni2OJyX0h1PRodf3g0o0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-17_10,2024-01-17_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 bulkscore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 phishscore=0 suspectscore=0 mlxlogscore=999 spamscore=0 malwarescore=0 impostorscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2311290000 definitions=main-2401170127 From: Shivnandan Kumar This patch introduces a client driver that interacts with the SCMI QCOM vendor protocol and passes on the required tuneables to start various features running on the SCMI controller. Signed-off-by: Shivnandan Kumar Co-developed-by: Ramakrishna Gottimukkula Signed-off-by: Ramakrishna Gottimukkula Co-developed-by: Amir Vajid Signed-off-by: Amir Vajid Co-developed-by: Sibi Sankar Signed-off-by: Sibi Sankar --- drivers/soc/qcom/Kconfig | 10 + drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/qcom_scmi_client.c | 486 ++++++++++++++++++++++++++++ 3 files changed, 497 insertions(+) create mode 100644 drivers/soc/qcom/qcom_scmi_client.c diff --git a/drivers/soc/qcom/Kconfig b/drivers/soc/qcom/Kconfig index c6ca4de42586..1530558aebfb 100644 --- a/drivers/soc/qcom/Kconfig +++ b/drivers/soc/qcom/Kconfig @@ -264,6 +264,16 @@ config QCOM_ICC_BWMON the fixed bandwidth votes from cpufreq (CPU nodes) thus achieve high memory throughput even with lower CPU frequencies. +config QCOM_SCMI_CLIENT + tristate "Qualcomm Technologies Inc. SCMI client driver" + depends on QCOM_SCMI_VENDOR_PROTOCOL || COMPILE_TEST + default n + help + SCMI client driver registers for SCMI QCOM vendor protocol. + + This driver interacts with the vendor protocol and passes on the required + tuneables to start various features running on the SCMI controller. + config QCOM_INLINE_CRYPTO_ENGINE tristate select QCOM_SCM diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile index 05b3d54e8dc9..c2a51293c886 100644 --- a/drivers/soc/qcom/Makefile +++ b/drivers/soc/qcom/Makefile @@ -32,5 +32,6 @@ obj-$(CONFIG_QCOM_APR) += apr.o obj-$(CONFIG_QCOM_LLCC) += llcc-qcom.o obj-$(CONFIG_QCOM_KRYO_L2_ACCESSORS) += kryo-l2-accessors.o obj-$(CONFIG_QCOM_ICC_BWMON) += icc-bwmon.o +obj-$(CONFIG_QCOM_SCMI_CLIENT) += qcom_scmi_client.o qcom_ice-objs += ice.o obj-$(CONFIG_QCOM_INLINE_CRYPTO_ENGINE) += qcom_ice.o diff --git a/drivers/soc/qcom/qcom_scmi_client.c b/drivers/soc/qcom/qcom_scmi_client.c new file mode 100644 index 000000000000..418aa7900496 --- /dev/null +++ b/drivers/soc/qcom/qcom_scmi_client.c @@ -0,0 +1,486 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2024, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAX_MEMORY_TYPES 3 +#define MEMLAT_ALGO_STR 0x74616C6D656D /* "memlat" */ +#define INVALID_IDX 0xFF +#define MAX_NAME_LEN 20 +#define MAX_MAP_ENTRIES 6 +#define MAX_MONITOR_CNT 4 +#define SCMI_VENDOR_MSG_START 3 +#define SCMI_VENDOR_MSG_MODULE_START 16 + +enum scmi_memlat_protocol_cmd { + MEMLAT_SET_LOG_LEVEL = SCMI_VENDOR_MSG_START, + MEMLAT_FLUSH_LOGBUF, + MEMLAT_SET_MEM_GROUP = SCMI_VENDOR_MSG_MODULE_START, + MEMLAT_SET_MONITOR, + MEMLAT_SET_COMMON_EV_MAP, + MEMLAT_SET_GRP_EV_MAP, + MEMLAT_ADAPTIVE_LOW_FREQ, + MEMLAT_ADAPTIVE_HIGH_FREQ, + MEMLAT_GET_ADAPTIVE_CUR_FREQ, + MEMLAT_IPM_CEIL, + MEMLAT_FE_STALL_FLOOR, + MEMLAT_BE_STALL_FLOOR, + MEMLAT_WB_PCT, + MEMLAT_IPM_FILTER, + MEMLAT_FREQ_SCALE_PCT, + MEMLAT_FREQ_SCALE_CEIL_MHZ, + MEMLAT_FREQ_SCALE_FLOOR_MHZ, + MEMLAT_SAMPLE_MS, + MEMLAT_MON_FREQ_MAP, + MEMLAT_SET_MIN_FREQ, + MEMLAT_SET_MAX_FREQ, + MEMLAT_GET_CUR_FREQ, + MEMLAT_START_TIMER, + MEMLAT_STOP_TIMER, + MEMLAT_GET_TIMESTAMP, + MEMLAT_MAX_MSG +}; + +struct map_table { + u16 v1; + u16 v2; +}; + +struct map_param_msg { + u32 hw_type; + u32 mon_idx; + u32 nr_rows; + struct map_table tbl[MAX_MAP_ENTRIES]; +} __packed; + +struct node_msg { + u32 cpumask; + u32 hw_type; + u32 mon_type; + u32 mon_idx; + char mon_name[MAX_NAME_LEN]; +}; + +struct scalar_param_msg { + u32 hw_type; + u32 mon_idx; + u32 val; +}; + +enum common_ev_idx { + INST_IDX, + CYC_IDX, + FE_STALL_IDX, + BE_STALL_IDX, + NUM_COMMON_EVS +}; + +enum grp_ev_idx { + MISS_IDX, + WB_IDX, + ACC_IDX, + NUM_GRP_EVS +}; + +#define EV_CPU_CYCLES 0 +#define EV_INST_RETIRED 2 +#define EV_L2_D_RFILL 5 + +struct ev_map_msg { + u32 num_evs; + u32 hw_type; + u32 cid[NUM_COMMON_EVS]; +}; + +struct cpufreq_memfreq_map { + unsigned int cpufreq_mhz; + unsigned int memfreq_khz; +}; + +struct scmi_monitor_info { + struct cpufreq_memfreq_map *freq_map; + char mon_name[MAX_NAME_LEN]; + u32 mon_idx; + u32 mon_type; + u32 ipm_ceil; + u32 mask; + u32 freq_map_len; +}; + +struct scmi_memory_info { + struct scmi_monitor_info *monitor[MAX_MONITOR_CNT]; + u32 hw_type; + int monitor_cnt; + u32 min_freq; + u32 max_freq; +}; + +struct scmi_memlat_info { + struct scmi_protocol_handle *ph; + const struct qcom_scmi_vendor_ops *ops; + struct scmi_memory_info *memory[MAX_MEMORY_TYPES]; + int memory_cnt; +}; + +static int get_mask(struct device_node *np, u32 *mask) +{ + struct device_node *dev_phandle; + struct device *cpu_dev; + int cpu, i = 0; + int ret = -ENODEV; + + dev_phandle = of_parse_phandle(np, "qcom,cpulist", i++); + while (dev_phandle) { + for_each_possible_cpu(cpu) { + cpu_dev = get_cpu_device(cpu); + if (cpu_dev && cpu_dev->of_node == dev_phandle) { + *mask |= BIT(cpu); + ret = 0; + break; + } + } + dev_phandle = of_parse_phandle(np, "qcom,cpulist", i++); + } + + return ret; +} + +static struct cpufreq_memfreq_map *init_cpufreq_memfreq_map(struct device *dev, + struct device_node *of_node, + u32 *cnt) +{ + int len, nf, i, j; + u32 data; + struct cpufreq_memfreq_map *tbl; + int ret; + + if (!of_find_property(of_node, "qcom,cpufreq-memfreq-tbl", &len)) + return NULL; + len /= sizeof(data); + + if (len % 2 || len == 0) + return NULL; + nf = len / 2; + + tbl = devm_kzalloc(dev, (nf + 1) * sizeof(struct cpufreq_memfreq_map), + GFP_KERNEL); + if (!tbl) + return NULL; + + for (i = 0, j = 0; i < nf; i++, j += 2) { + ret = of_property_read_u32_index(of_node, "qcom,cpufreq-memfreq-tbl", + j, &data); + if (ret < 0) + return NULL; + tbl[i].cpufreq_mhz = data / 1000; + + ret = of_property_read_u32_index(of_node, "qcom,cpufreq-memfreq-tbl", + j + 1, &data); + if (ret < 0) + return NULL; + + tbl[i].memfreq_khz = data; + pr_debug("Entry%d CPU:%u, Mem:%u\n", i, tbl[i].cpufreq_mhz, + tbl[i].memfreq_khz); + } + *cnt = nf; + tbl[i].cpufreq_mhz = 0; + + return tbl; +} + +static int process_scmi_memlat_of_node(struct scmi_device *sdev, struct scmi_memlat_info *info) +{ + struct device_node *memlat_np, *memory_np, *monitor_np; + struct scmi_memory_info *memory; + struct scmi_monitor_info *monitor; + int ret = 0, i = 0, j; + u32 memfreq[2]; + + of_node_get(sdev->handle->dev->of_node); + memlat_np = of_find_node_by_name(sdev->handle->dev->of_node, "memlat"); + + info->memory_cnt = of_get_child_count(memlat_np); + if (info->memory_cnt <= 0) + pr_err("No memory nodes present\n"); + + for_each_child_of_node(memlat_np, memory_np) { + memory = devm_kzalloc(&sdev->dev, sizeof(*memory), GFP_KERNEL); + if (!memory) { + ret = -ENOMEM; + goto err; + } + + ret = of_property_read_u32(memory_np, "reg", &memory->hw_type); + if (ret) { + pr_err("Failed to read memory type\n"); + goto err; + } + + memory->monitor_cnt = of_get_child_count(memory_np); + if (memory->monitor_cnt <= 0) { + pr_err("No monitor nodes present\n"); + ret = -EINVAL; + goto err; + } + + ret = of_property_read_u32_array(memory_np, "freq-table-khz", memfreq, 2); + if (ret && (ret != -EINVAL)) { + pr_err("Failed to read min/max freq %d\n", ret); + goto err; + } + + memory->min_freq = memfreq[0]; + memory->max_freq = memfreq[1]; + info->memory[i] = memory; + j = 0; + i++; + + for_each_child_of_node(memory_np, monitor_np) { + monitor = devm_kzalloc(&sdev->dev, sizeof(*monitor), GFP_KERNEL); + if (!monitor) { + ret = -ENOMEM; + goto err; + } + + monitor->mon_type = (of_property_read_bool(monitor_np, "qcom,compute-mon")) ? 1 : 0; + monitor->ipm_ceil = (of_property_read_bool(monitor_np, "qcom,compute-mon")) ? 0 : 20000000; + + if (get_mask(monitor_np, &monitor->mask)) { + pr_err("Failed to populate cpu mask %d\n", ret); + goto err; + } + + monitor->freq_map = init_cpufreq_memfreq_map(&sdev->dev, monitor_np, + &monitor->freq_map_len); + snprintf(monitor->mon_name, MAX_NAME_LEN, "monitor-%d", j); + monitor->mon_idx = j; + + memory->monitor[j] = monitor; + j++; + } + } + + return 0; + +err: + of_node_put(memlat_np); + + return ret; +} + +static int configure_cpucp_common_events(struct scmi_memlat_info *info) +{ + const struct qcom_scmi_vendor_ops *ops = info->ops; + u8 ev_map[NUM_COMMON_EVS]; + struct ev_map_msg msg; + int ret; + + memset(ev_map, 0xFF, NUM_COMMON_EVS); + + msg.num_evs = NUM_COMMON_EVS; + msg.hw_type = INVALID_IDX; + msg.cid[INST_IDX] = EV_INST_RETIRED; + msg.cid[CYC_IDX] = EV_CPU_CYCLES; + msg.cid[FE_STALL_IDX] = INVALID_IDX; + msg.cid[BE_STALL_IDX] = INVALID_IDX; + + ret = ops->set_param(info->ph, &msg, MEMLAT_ALGO_STR, MEMLAT_SET_COMMON_EV_MAP, + sizeof(msg)); + return ret; +} + +static int configure_cpucp_grp(struct scmi_memlat_info *info, int memory_index) +{ + const struct qcom_scmi_vendor_ops *ops = info->ops; + struct scmi_memory_info *memory = info->memory[memory_index]; + struct ev_map_msg ev_msg; + u8 ev_map[NUM_GRP_EVS]; + struct node_msg msg; + int ret; + + msg.cpumask = 0; + msg.hw_type = memory->hw_type; + msg.mon_type = 0; + msg.mon_idx = 0; + ret = ops->set_param(info->ph, &msg, MEMLAT_ALGO_STR, MEMLAT_SET_MEM_GROUP, sizeof(msg)); + if (ret < 0) { + pr_err("Failed to configure mem type %d\n", memory->hw_type); + return ret; + } + + memset(ev_map, 0xFF, NUM_GRP_EVS); + ev_msg.num_evs = NUM_GRP_EVS; + ev_msg.hw_type = memory->hw_type; + ev_msg.cid[MISS_IDX] = EV_L2_D_RFILL; + ev_msg.cid[WB_IDX] = INVALID_IDX; + ev_msg.cid[ACC_IDX] = INVALID_IDX; + ret = ops->set_param(info->ph, &ev_msg, MEMLAT_ALGO_STR, MEMLAT_SET_GRP_EV_MAP, + sizeof(ev_msg)); + if (ret < 0) { + pr_err("Failed to configure event map for mem type %d\n", memory->hw_type); + return ret; + } + + return ret; +} + +static int configure_cpucp_mon(struct scmi_memlat_info *info, int memory_index, int monitor_index) +{ + const struct qcom_scmi_vendor_ops *ops = info->ops; + struct scmi_memory_info *memory = info->memory[memory_index]; + struct scmi_monitor_info *monitor = memory->monitor[monitor_index]; + struct scalar_param_msg scalar_msg; + struct map_param_msg map_msg; + struct node_msg msg; + int ret; + int i; + + msg.cpumask = monitor->mask; + msg.hw_type = memory->hw_type; + msg.mon_type = monitor->mon_type; + msg.mon_idx = monitor->mon_idx; + strscpy(msg.mon_name, monitor->mon_name, sizeof(msg.mon_name)); + ret = ops->set_param(info->ph, &msg, MEMLAT_ALGO_STR, MEMLAT_SET_MONITOR, sizeof(msg)); + if (ret < 0) { + pr_err("Failed to configure monitor %s\n", monitor->mon_name); + return ret; + } + + scalar_msg.hw_type = memory->hw_type; + scalar_msg.mon_idx = monitor->mon_idx; + scalar_msg.val = monitor->ipm_ceil; + ret = ops->set_param(info->ph, &scalar_msg, MEMLAT_ALGO_STR, MEMLAT_IPM_CEIL, + sizeof(scalar_msg)); + if (ret < 0) { + pr_err("Failed to set ipm ceil for %s\n", monitor->mon_name); + return ret; + } + + map_msg.hw_type = memory->hw_type; + map_msg.mon_idx = monitor->mon_idx; + map_msg.nr_rows = monitor->freq_map_len; + for (i = 0; i < monitor->freq_map_len; i++) { + map_msg.tbl[i].v1 = monitor->freq_map[i].cpufreq_mhz; + map_msg.tbl[i].v2 = monitor->freq_map[i].memfreq_khz / 1000; + } + ret = ops->set_param(info->ph, &map_msg, MEMLAT_ALGO_STR, MEMLAT_MON_FREQ_MAP, + sizeof(map_msg)); + if (ret < 0) { + pr_err("Failed to configure freq_map for %s\n", monitor->mon_name); + return ret; + } + + scalar_msg.hw_type = memory->hw_type; + scalar_msg.mon_idx = monitor->mon_idx; + scalar_msg.val = memory->min_freq; + ret = ops->set_param(info->ph, &scalar_msg, MEMLAT_ALGO_STR, MEMLAT_SET_MIN_FREQ, + sizeof(scalar_msg)); + if (ret < 0) { + pr_err("Failed to set min_freq for %s\n", monitor->mon_name); + return ret; + } + + scalar_msg.hw_type = memory->hw_type; + scalar_msg.mon_idx = monitor->mon_idx; + scalar_msg.val = memory->max_freq; + ret = ops->set_param(info->ph, &scalar_msg, MEMLAT_ALGO_STR, MEMLAT_SET_MAX_FREQ, + sizeof(scalar_msg)); + if (ret < 0) + pr_err("Failed to set max_freq for %s\n", monitor->mon_name); + + return ret; +} + +static int cpucp_memlat_init(struct scmi_device *sdev) +{ + const struct scmi_handle *handle = sdev->handle; + const struct qcom_scmi_vendor_ops *ops; + struct scmi_protocol_handle *ph; + struct scmi_memlat_info *info; + u32 cpucp_sample_ms = 8; + int ret, i, j; + + if (!handle) + return -ENODEV; + + ops = handle->devm_protocol_get(sdev, QCOM_SCMI_VENDOR_PROTOCOL, &ph); + if (IS_ERR(ops)) + return PTR_ERR(ops); + + info = devm_kzalloc(&sdev->dev, sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + ret = process_scmi_memlat_of_node(sdev, info); + if (ret) + pr_err("Failed to configure common events: %d\n", ret); + + info->ph = ph; + info->ops = ops; + + ret = configure_cpucp_common_events(info); + if (ret < 0) + pr_err("Failed to configure common events: %d\n", ret); + + for (i = 0; i < info->memory_cnt; i++) { + ret = configure_cpucp_grp(info, i); + if (ret < 0) + pr_err("Failed to configure mem group: %d\n", ret); + + for (j = 0; j < info->memory[i]->monitor_cnt; j++) { + /* Configure per monitor parameters */ + ret = configure_cpucp_mon(info, i, j); + if (ret < 0) + pr_err("Failed to configure monitor: %d\n", ret); + } + } + + ret = ops->set_param(ph, &cpucp_sample_ms, MEMLAT_ALGO_STR, MEMLAT_SAMPLE_MS, + sizeof(cpucp_sample_ms)); + if (ret < 0) + pr_err("Failed to set cpucp sample_ms ret = %d\n", ret); + + /* Start sampling and voting timer */ + ret = ops->start_activity(ph, NULL, MEMLAT_ALGO_STR, MEMLAT_START_TIMER, 0); + if (ret < 0) + pr_err("Error in starting the mem group timer %d\n", ret); + + dev_set_drvdata(&sdev->dev, info); + + return ret; +} + +static int scmi_client_probe(struct scmi_device *sdev) +{ + cpucp_memlat_init(sdev); + + return 0; +} + +static const struct scmi_device_id scmi_id_table[] = { + { .protocol_id = QCOM_SCMI_VENDOR_PROTOCOL, .name = "qcom_scmi_vendor_protocol" }, + { }, +}; +MODULE_DEVICE_TABLE(scmi, scmi_id_table); + +static struct scmi_driver qcom_scmi_client_drv = { + .name = "qcom-scmi-driver", + .probe = scmi_client_probe, + .id_table = scmi_id_table, +}; +module_scmi_driver(qcom_scmi_client_drv); + +MODULE_DESCRIPTION("QTI SCMI client driver"); +MODULE_LICENSE("GPL"); From patchwork Wed Jan 17 17:34:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sibi Sankar X-Patchwork-Id: 764310 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 8A069241F7; Wed, 17 Jan 2024 17:35:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Signed-off-by: Sibi Sankar --- arch/arm64/boot/dts/qcom/x1e80100.dtsi | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi index 6f75fc342ceb..afdbd27f8346 100644 --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi @@ -3309,6 +3309,13 @@ gic_its: msi-controller@17040000 { }; }; + cpucp_mbox: mailbox@17430000 { + compatible = "qcom,x1e80100-cpucp-mbox", "qcom,cpucp-mbox"; + reg = <0 0x17430000 0 0x10000>, <0 0x18830000 0 0x300>; + interrupts = ; + #mbox-cells = <1>; + }; + apps_rsc: rsc@17500000 { compatible = "qcom,rpmh-rsc"; reg = <0 0x17500000 0 0x10000>, @@ -3492,6 +3499,25 @@ frame@1780d000 { }; }; + sram: sram@18b4e000 { + compatible = "mmio-sram"; + reg = <0x0 0x18b4e000 0x0 0x400>; + ranges = <0x0 0x0 0x18b4e000 0x400>; + + #address-cells = <1>; + #size-cells = <1>; + + cpu_scp_lpri0: scmi-shmem@0 { + compatible = "arm,scmi-shmem"; + reg = <0x0 0x200>; 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Signed-off-by: Sibi Sankar --- arch/arm64/boot/dts/qcom/x1e80100.dtsi | 27 ++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi index afdbd27f8346..6856a206f7fc 100644 --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi @@ -62,6 +62,7 @@ CPU0: cpu@0 { compatible = "qcom,oryon"; reg = <0x0 0x0>; enable-method = "psci"; + clocks = <&scmi_dvfs 0>; next-level-cache = <&L2_0>; power-domains = <&CPU_PD0>; power-domain-names = "psci"; @@ -79,6 +80,7 @@ CPU1: cpu@100 { compatible = "qcom,oryon"; reg = <0x0 0x100>; enable-method = "psci"; + clocks = <&scmi_dvfs 0>; next-level-cache = <&L2_0>; power-domains = <&CPU_PD1>; power-domain-names = "psci"; @@ -90,6 +92,7 @@ CPU2: cpu@200 { compatible = "qcom,oryon"; reg = <0x0 0x200>; enable-method = "psci"; + clocks = <&scmi_dvfs 0>; next-level-cache = <&L2_0>; power-domains = <&CPU_PD2>; power-domain-names = "psci"; @@ -101,6 +104,7 @@ CPU3: cpu@300 { compatible = "qcom,oryon"; reg = <0x0 0x300>; enable-method = "psci"; + clocks = <&scmi_dvfs 0>; next-level-cache = <&L2_0>; power-domains = <&CPU_PD3>; power-domain-names = "psci"; @@ -112,6 +116,7 @@ CPU4: cpu@10000 { compatible = "qcom,oryon"; reg = <0x0 0x10000>; enable-method = "psci"; + clocks = <&scmi_dvfs 1>; next-level-cache = <&L2_1>; power-domains = <&CPU_PD4>; power-domain-names = "psci"; @@ -129,6 +134,7 @@ CPU5: cpu@10100 { compatible = "qcom,oryon"; reg = <0x0 0x10100>; enable-method = "psci"; + clocks = <&scmi_dvfs 1>; next-level-cache = <&L2_1>; power-domains = <&CPU_PD5>; power-domain-names = "psci"; @@ -140,6 +146,7 @@ CPU6: cpu@10200 { compatible = "qcom,oryon"; reg = <0x0 0x10200>; enable-method = "psci"; + clocks = <&scmi_dvfs 1>; next-level-cache = <&L2_1>; power-domains = <&CPU_PD6>; power-domain-names = "psci"; @@ -151,6 +158,7 @@ CPU7: cpu@10300 { compatible = "qcom,oryon"; reg = <0x0 0x10300>; enable-method = "psci"; + clocks = <&scmi_dvfs 1>; next-level-cache = <&L2_1>; power-domains = <&CPU_PD7>; power-domain-names = "psci"; @@ -162,6 +170,7 @@ CPU8: cpu@20000 { compatible = "qcom,oryon"; reg = <0x0 0x20000>; enable-method = "psci"; + clocks = <&scmi_dvfs 2>; next-level-cache = <&L2_2>; power-domains = <&CPU_PD8>; power-domain-names = "psci"; @@ -179,6 +188,7 @@ CPU9: cpu@20100 { compatible = "qcom,oryon"; reg = <0x0 0x20100>; enable-method = "psci"; + clocks = <&scmi_dvfs 2>; next-level-cache = <&L2_2>; power-domains = <&CPU_PD9>; power-domain-names = "psci"; @@ -190,6 +200,7 @@ CPU10: cpu@20200 { compatible = "qcom,oryon"; reg = <0x0 0x20200>; enable-method = "psci"; + clocks = <&scmi_dvfs 2>; next-level-cache = <&L2_2>; power-domains = <&CPU_PD10>; power-domain-names = "psci"; @@ -201,6 +212,7 @@ CPU11: cpu@20300 { compatible = "qcom,oryon"; reg = <0x0 0x20300>; enable-method = "psci"; + clocks = <&scmi_dvfs 2>; next-level-cache = <&L2_2>; power-domains = <&CPU_PD11>; power-domain-names = "psci"; @@ -303,6 +315,21 @@ scm: scm { interconnects = <&aggre2_noc MASTER_CRYPTO QCOM_ICC_TAG_ALWAYS &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ALWAYS>; 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Signed-off-by: Sibi Sankar --- arch/arm64/boot/dts/qcom/x1e80100.dtsi | 48 ++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1e80100.dtsi b/arch/arm64/boot/dts/qcom/x1e80100.dtsi index 6856a206f7fc..3dc6f32fbb4c 100644 --- a/arch/arm64/boot/dts/qcom/x1e80100.dtsi +++ b/arch/arm64/boot/dts/qcom/x1e80100.dtsi @@ -329,6 +329,54 @@ scmi_dvfs: protocol@13 { reg = <0x13>; #clock-cells = <1>; }; + + scmi_vendor: protocol@80 { + reg = <0x80>; + + memlat { + #address-cells = <1>; + #size-cells = <0>; + + memory@0 { + reg = <0x0>; /* Memory Type DDR */ + freq-table-khz = <200000 4224000>; + + monitor-0 { + qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>; + qcom,cpufreq-memfreq-tbl = < 999000 547000 >, + < 1440000 768000 >, + < 1671000 1555000 >, + < 2189000 2092000 >, + < 2156000 3187000 >, + < 3860000 4224000 >; + }; + + monitor-1 { + qcom,compute-mon; + qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>; + qcom,cpufreq-memfreq-tbl = < 1440000 200000 >, + < 2189000 768000 >, + < 2156000 1555000 >, + < 3860000 2092000 >; + }; + }; + + memory@1 { + reg = <0x1>; /* Memory Type LLCC */ + freq-table-khz = <300000 1067000>; + + monitor-0 { + qcom,cpulist = <&CPU0 &CPU1 &CPU2 &CPU3 &CPU4 &CPU5 &CPU6 &CPU7 &CPU8 &CPU9 &CPU10 &CPU11>; + qcom,cpufreq-memfreq-tbl = < 999000 300000 >, + < 1440000 466000 >, + < 1671000 600000 >, + < 2189000 806000 >, + < 2156000 933000 >, + < 3860000 1066000 >; + }; + }; + }; + }; }; };