From patchwork Tue May 19 14:13:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeffrey Hugo X-Patchwork-Id: 189081 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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 C2816C433E0 for ; Tue, 19 May 2020 14:14:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9B8E52083E for ; Tue, 19 May 2020 14:14:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="gjqksx3x" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729107AbgESOOp (ORCPT ); Tue, 19 May 2020 10:14:45 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:44141 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729076AbgESOOo (ORCPT ); Tue, 19 May 2020 10:14:44 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1589897683; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=+ZgP1FahFYYzLV4C1qDNHdNlu5/WbgR+BfCRFfWfscU=; b=gjqksx3xQiuogr3QNe3sACMbGAZUlIuvyb0N2Bci//MapKsnCCOcHPfwcyfyiFYICt0tMGEf yQSQ3W5SkZucRSrAWfbu073vkjdDRdM0C4psySl+8gv5HNt9xhaXUqMhQQUaCnBW35+K+DcD 3M2zqYyEwWgBDkDWGNzpEvly35Y= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5ec3e9bc.7f698e231c38-smtp-out-n03; Tue, 19 May 2020 14:14:20 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 7DCDEC433D2; Tue, 19 May 2020 14:14:20 +0000 (UTC) Received: from jhugo-perf-lnx.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jhugo) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5D692C43637; Tue, 19 May 2020 14:14:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5D692C43637 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=jhugo@codeaurora.org From: Jeffrey Hugo To: arnd@arndb.de, gregkh@linuxfoundation.org Cc: manivannan.sadhasivam@linaro.org, bjorn.andersson@linaro.org, wufan@codeaurora.org, pratanan@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Jeffrey Hugo Subject: [RFC v2 PATCH 1/8] qaic: Add skeleton driver Date: Tue, 19 May 2020 08:13:58 -0600 Message-Id: <1589897645-17088-2-git-send-email-jhugo@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1589897645-17088-1-git-send-email-jhugo@codeaurora.org> References: <1589897645-17088-1-git-send-email-jhugo@codeaurora.org> Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add the Qualcomm Cloud AI 100 skeleton driver that does nothing but registers a pci driver, probes on the proper device, and supports removal of the module. Signed-off-by: Jeffrey Hugo --- drivers/misc/Kconfig | 1 + drivers/misc/Makefile | 1 + drivers/misc/qaic/Kconfig | 20 ++++++++++++++ drivers/misc/qaic/Makefile | 9 +++++++ drivers/misc/qaic/qaic_drv.c | 62 ++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 93 insertions(+) create mode 100644 drivers/misc/qaic/Kconfig create mode 100644 drivers/misc/qaic/Makefile create mode 100644 drivers/misc/qaic/qaic_drv.c diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 99e1514..ef91d062 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -481,4 +481,5 @@ source "drivers/misc/ocxl/Kconfig" source "drivers/misc/cardreader/Kconfig" source "drivers/misc/habanalabs/Kconfig" source "drivers/misc/uacce/Kconfig" +source "drivers/misc/qaic/Kconfig" endmenu diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 9abf292..64f0770 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -58,3 +58,4 @@ obj-$(CONFIG_PVPANIC) += pvpanic.o obj-$(CONFIG_HABANA_AI) += habanalabs/ obj-$(CONFIG_UACCE) += uacce/ obj-$(CONFIG_XILINX_SDFEC) += xilinx_sdfec.o +obj-$(CONFIG_QAIC) += qaic/ diff --git a/drivers/misc/qaic/Kconfig b/drivers/misc/qaic/Kconfig new file mode 100644 index 0000000..502d176 --- /dev/null +++ b/drivers/misc/qaic/Kconfig @@ -0,0 +1,20 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Qualcomm Cloud AI 100 accelerators driver +# + +config QAIC + tristate "Qualcomm Cloud AI 100 accelerators" + depends on PCI && HAS_IOMEM + depends on MHI_BUS + help + Enables driver for Qualcomm's Cloud AI 100 accelerator PCIe cards + that are designed to accelerate Deep Learning inference workloads. + + The driver manages the PCIe devices and provides an IOCTL interface + for users to submit workloads to the devices. + + If unsure, say N. + + To compile this driver as a module, choose M here: the + module will be called qaic. diff --git a/drivers/misc/qaic/Makefile b/drivers/misc/qaic/Makefile new file mode 100644 index 0000000..9db6417 --- /dev/null +++ b/drivers/misc/qaic/Makefile @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for Qualcomm Cloud AI 100 accelerators driver +# + +obj-$(CONFIG_QAIC) := qaic.o + +qaic-y := \ + qaic_drv.o diff --git a/drivers/misc/qaic/qaic_drv.c b/drivers/misc/qaic/qaic_drv.c new file mode 100644 index 0000000..942dbf6 --- /dev/null +++ b/drivers/misc/qaic/qaic_drv.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0-only + +/* Copyright (c) 2019-2020, The Linux Foundation. All rights reserved. */ + +#include +#include +#include + +#define PCI_DEV_AIC100 0xa100 + +static int qaic_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + pci_dbg(pdev, "%s\n", __func__); + pci_dbg(pdev, "%s: successful init\n", __func__); + return 0; +} + +static void qaic_pci_remove(struct pci_dev *pdev) +{ + pci_dbg(pdev, "%s\n", __func__); +} + +static const struct pci_device_id ids[] = { + { PCI_DEVICE(PCI_VENDOR_ID_QCOM, PCI_DEV_AIC100), }, + { 0, } +}; +MODULE_DEVICE_TABLE(pci, ids); + +static struct pci_driver qaic_pci_driver = { + .name = KBUILD_MODNAME, + .id_table = ids, + .probe = qaic_pci_probe, + .remove = qaic_pci_remove, +}; + +static int __init qaic_init(void) +{ + int ret; + + pr_debug("qaic: init\n"); + + ret = pci_register_driver(&qaic_pci_driver); + + pr_debug("qaic: init success\n"); + + return ret; +} + +static void __exit qaic_exit(void) +{ + pr_debug("qaic: exit\n"); + pci_unregister_driver(&qaic_pci_driver); +} + +module_init(qaic_init); +module_exit(qaic_exit); + +MODULE_AUTHOR("Qualcomm Cloud AI 100 Accelerator Kernel Driver Team"); +MODULE_DESCRIPTION("Qualcomm Cloud AI 100 Accelerators Driver"); +MODULE_LICENSE("GPL v2"); +MODULE_VERSION("0.0.0"); /* MAJOR.MINOR.PATCH */