From patchwork Wed Jul 4 19:06:52 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vikash Garodia X-Patchwork-Id: 50773 X-Patchwork-Delegate: hverkuil@xs4all.nl Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fan8S-0004rv-Ih; Wed, 04 Jul 2018 19:08:17 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753068AbeGDTH7 (ORCPT + 1 other); Wed, 4 Jul 2018 15:07:59 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:41950 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753061AbeGDTH5 (ORCPT ); Wed, 4 Jul 2018 15:07:57 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 4BDE660B28; Wed, 4 Jul 2018 19:07:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1530731276; bh=fjGYQkinKpbTxgNUgnig8IVBb4O8jjCQsC6bD50+p4k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H3KhF0+ZU2RpiwmHOxNyKJhyoOAe7zSRYGztp/ug828DpIyf6FD7UdFpQfUV4N8Qm TOiIpwAeDh34oQvKpxLsf2sfguUkUE2vWbjB94GfJP2XUQlqyBPsGT64DkPMobmgFa HiHvcj0sueH/3OAlgAuxAcXGIKd/DCBlEf8W6ZAg= X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=2.0 tests=ALL_TRUSTED,BAYES_00, DKIM_SIGNED, T_DKIM_INVALID autolearn=no autolearn_force=no version=3.4.0 Received: from vgarodia-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: vgarodia@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id A439960B62; Wed, 4 Jul 2018 19:07:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1530731275; bh=fjGYQkinKpbTxgNUgnig8IVBb4O8jjCQsC6bD50+p4k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mVXiN2RQM33Yt2PpzB65SUluun1yv9t2QxJPFWvAp+gv7EuzKzag66MkUjE0ZNUBX R1DRd90tQIL84O02ELLW1nWE92kzBdSUkjvC+6WPV3F/uex6UwOtYMdnQMG18oG/xB HmJms2a0/mE324TQm84F0hto6sOxGdpUNCUmO4Lk= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org A439960B62 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=vgarodia@codeaurora.org From: Vikash Garodia To: stanimir.varbanov@linaro.org, hverkuil@xs4all.nl, mchehab@kernel.org, robh@kernel.org, mark.rutland@arm.com, andy.gross@linaro.org, arnd@arndb.de, bjorn.andersson@linaro.org Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org, devicetree@vger.kernel.org, acourbot@chromium.org, vgarodia@codeaurora.org Subject: [PATCH v3 4/4] venus: firmware: register separate driver for firmware device Date: Thu, 5 Jul 2018 00:36:52 +0530 Message-Id: <1530731212-30474-5-git-send-email-vgarodia@codeaurora.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1530731212-30474-1-git-send-email-vgarodia@codeaurora.org> References: <1530731212-30474-1-git-send-email-vgarodia@codeaurora.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org A separate child device is added for video firmware. This is needed to [1] configure the firmware context bank with the desired SID. [2] ensure that the iova for firmware region is from 0x0. Signed-off-by: Vikash Garodia Reviewed-by: Rob Herring --- .../devicetree/bindings/media/qcom,venus.txt | 17 +++++++- drivers/media/platform/qcom/venus/core.c | 49 +++++++++++++++++++--- drivers/media/platform/qcom/venus/firmware.c | 18 ++++++++ drivers/media/platform/qcom/venus/firmware.h | 2 + 4 files changed, 80 insertions(+), 6 deletions(-) diff --git a/Documentation/devicetree/bindings/media/qcom,venus.txt b/Documentation/devicetree/bindings/media/qcom,venus.txt index 00d0d1b..975fb12 100644 --- a/Documentation/devicetree/bindings/media/qcom,venus.txt +++ b/Documentation/devicetree/bindings/media/qcom,venus.txt @@ -53,7 +53,7 @@ * Subnodes The Venus video-codec node must contain two subnodes representing -video-decoder and video-encoder. +video-decoder and video-encoder, one optional firmware subnode. Every of video-encoder or video-decoder subnode should have: @@ -79,6 +79,17 @@ Every of video-encoder or video-decoder subnode should have: power domain which is responsible for collapsing and restoring power to the subcore. +The firmware sub node must have: + +- compatible: + Usage: required + Value type: + Definition: Value should contain "venus-firmware" +- iommus: + Usage: required + Value type: + Definition: A list of phandle and IOMMU specifier pairs. + * An Example video-codec@1d00000 { compatible = "qcom,msm8916-venus"; @@ -105,4 +116,8 @@ Every of video-encoder or video-decoder subnode should have: clock-names = "core"; power-domains = <&mmcc VENUS_CORE1_GDSC>; }; + venus-firmware { + compatible = "qcom,venus-firmware"; + iommus = <&apps_smmu 0x10b2 0x0>; + } }; diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c index 393994e..420dca3 100644 --- a/drivers/media/platform/qcom/venus/core.c +++ b/drivers/media/platform/qcom/venus/core.c @@ -179,6 +179,20 @@ static u32 to_v4l2_codec_type(u32 codec) } } +static int store_firmware_dev(struct device *dev, void *data) +{ + struct venus_core *core = data; + if (!core) + return -EINVAL; + + if (of_device_is_compatible(dev->of_node, "qcom,venus-firmware")) { + core->fw.dev = dev; + core->no_tz = true; + } + + return 0; +} + static int venus_enumerate_codecs(struct venus_core *core, u32 type) { const struct hfi_inst_ops dummy_ops = {}; @@ -284,6 +298,13 @@ static int venus_probe(struct platform_device *pdev) if (ret < 0) goto err_runtime_disable; + ret = of_platform_populate(dev->of_node, NULL, NULL, dev); + if (ret) + goto err_runtime_disable; + + /* Attempt to store firmware device */ + device_for_each_child(dev, core, store_firmware_dev); + ret = venus_boot(core); if (ret) goto err_runtime_disable; @@ -308,10 +329,6 @@ static int venus_probe(struct platform_device *pdev) if (ret) goto err_core_deinit; - ret = of_platform_populate(dev->of_node, NULL, NULL, dev); - if (ret) - goto err_dev_unregister; - ret = pm_runtime_put_sync(dev); if (ret) goto err_dev_unregister; @@ -488,7 +505,29 @@ static __maybe_unused int venus_runtime_resume(struct device *dev) .pm = &venus_pm_ops, }, }; -module_platform_driver(qcom_venus_driver); + +static int __init venus_init(void) +{ + int ret; + + ret = platform_driver_register(&qcom_video_firmware_driver); + if (ret) + return ret; + + ret = platform_driver_register(&qcom_venus_driver); + if (ret) + platform_driver_unregister(&qcom_video_firmware_driver); + + return ret; +} +module_init(venus_init); + +static void __exit venus_exit(void) +{ + platform_driver_unregister(&qcom_venus_driver); + platform_driver_unregister(&qcom_video_firmware_driver); +} +module_exit(venus_exit); MODULE_ALIAS("platform:qcom-venus"); MODULE_DESCRIPTION("Qualcomm Venus video encoder and decoder driver"); diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c index 2a98d9e..4c0d808 100644 --- a/drivers/media/platform/qcom/venus/firmware.c +++ b/drivers/media/platform/qcom/venus/firmware.c @@ -12,6 +12,7 @@ * */ +#include #include #include #include @@ -231,3 +232,20 @@ int venus_shutdown(struct venus_core *core) return ret; } + +static const struct of_device_id firmware_dt_match[] = { + { .compatible = "qcom,venus-firmware" }, + { } +}; +MODULE_DEVICE_TABLE(of, firmware_dt_match); + +struct platform_driver qcom_video_firmware_driver = { + .driver = { + .name = "qcom-video-firmware", + .of_match_table = firmware_dt_match, + }, +}; + +MODULE_ALIAS("platform:qcom-video-firmware"); +MODULE_DESCRIPTION("Qualcomm Venus firmware driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/media/platform/qcom/venus/firmware.h b/drivers/media/platform/qcom/venus/firmware.h index 92736d6..8f4848f 100644 --- a/drivers/media/platform/qcom/venus/firmware.h +++ b/drivers/media/platform/qcom/venus/firmware.h @@ -16,6 +16,8 @@ struct device; +extern struct platform_driver qcom_video_firmware_driver; + int venus_boot(struct venus_core *core); int venus_shutdown(struct venus_core *core); int venus_set_hw_state(struct venus_core *core, bool suspend);