From patchwork Thu Jun 10 11:04:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mikko Perttunen X-Patchwork-Id: 12312657 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 D7477C48BE5 for ; Thu, 10 Jun 2021 11:05:27 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A7EAC613F5 for ; Thu, 10 Jun 2021 11:05:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A7EAC613F5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 25AF26ECDB; Thu, 10 Jun 2021 11:05:20 +0000 (UTC) Received: from mail.kapsi.fi (mail.kapsi.fi [IPv6:2001:67c:1be8::25]) by gabe.freedesktop.org (Postfix) with ESMTPS id AEBA56ECDD for ; Thu, 10 Jun 2021 11:05:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=kapsi.fi; s=20161220; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=zOe3f2e0Fo/Q2lftx16qXkaQVuksUMaRUUlOY3j44GA=; b=S+OtFU8YsmbbqcfVtXzBxyEnZr znHlSZGG7En8McNKUtPCwKn6pHIUfwf5jBPxC4mAfYsdmxMALAK+D+YncHeyGujvbUJht7hbCPPFG aj+E2ORC1RR/6Wq+prNPgkqKM+rBQEGgmOba1WtU/xYzCC+CnNYc9m9NyNJ+1YAeYIZwCqsyvbJgP wogPUIRiZoZ5hYqOWUHcwOeOZ85Ii9f/txHms1z5KWIpb7r2h5+eR8Awblm3UwUEWTQfH4D1h6p2A 0a73tXNeABty3B4eTU6r23ui5r+uRDkDnDCc4RsocwoiBOD0Jga5rAsYjRd3KdsuFbjCP9Jmw/F8B tywg3PtQ==; Received: from dsl-hkibng22-54f986-236.dhcp.inet.fi ([84.249.134.236] helo=toshino.localdomain) by mail.kapsi.fi with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1lrIUt-0001s7-9U; Thu, 10 Jun 2021 14:05:15 +0300 From: Mikko Perttunen To: thierry.reding@gmail.com, jonathanh@nvidia.com, digetx@gmail.com, airlied@linux.ie, daniel@ffwll.ch Subject: [PATCH v7 08/15] drm/tegra: Boot VIC during runtime PM resume Date: Thu, 10 Jun 2021 14:04:49 +0300 Message-Id: <20210610110456.3692391-9-mperttunen@nvidia.com> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210610110456.3692391-1-mperttunen@nvidia.com> References: <20210610110456.3692391-1-mperttunen@nvidia.com> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 84.249.134.236 X-SA-Exim-Mail-From: mperttunen@nvidia.com X-SA-Exim-Scanned: No (on mail.kapsi.fi); SAEximRunCond expanded to false X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, Mikko Perttunen Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" With the new UAPI implementation, engines are powered on and off when there are active jobs, and the core code handles channel allocation. To accommodate that, boot the engine as part of runtime PM instead of using the open_channel callback, which is not used by the new submit path. Signed-off-by: Mikko Perttunen --- v6: * Use pm_runtime_resume_and_get v3: * runtime_get/put is now done directly from submit path, so no callbacks are added * Reworded. --- drivers/gpu/drm/tegra/vic.c | 112 ++++++++++++++++-------------------- 1 file changed, 51 insertions(+), 61 deletions(-) diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c index c9d55a9a3180..c02010ff2b7f 100644 --- a/drivers/gpu/drm/tegra/vic.c +++ b/drivers/gpu/drm/tegra/vic.c @@ -29,7 +29,6 @@ struct vic_config { struct vic { struct falcon falcon; - bool booted; void __iomem *regs; struct tegra_drm_client client; @@ -52,48 +51,6 @@ static void vic_writel(struct vic *vic, u32 value, unsigned int offset) writel(value, vic->regs + offset); } -static int vic_runtime_resume(struct device *dev) -{ - struct vic *vic = dev_get_drvdata(dev); - int err; - - err = clk_prepare_enable(vic->clk); - if (err < 0) - return err; - - usleep_range(10, 20); - - err = reset_control_deassert(vic->rst); - if (err < 0) - goto disable; - - usleep_range(10, 20); - - return 0; - -disable: - clk_disable_unprepare(vic->clk); - return err; -} - -static int vic_runtime_suspend(struct device *dev) -{ - struct vic *vic = dev_get_drvdata(dev); - int err; - - err = reset_control_assert(vic->rst); - if (err < 0) - return err; - - usleep_range(2000, 4000); - - clk_disable_unprepare(vic->clk); - - vic->booted = false; - - return 0; -} - static int vic_boot(struct vic *vic) { #ifdef CONFIG_IOMMU_API @@ -103,9 +60,6 @@ static int vic_boot(struct vic *vic) void *hdr; int err = 0; - if (vic->booted) - return 0; - #ifdef CONFIG_IOMMU_API if (vic->config->supports_sid && spec) { u32 value; @@ -168,8 +122,6 @@ static int vic_boot(struct vic *vic) return err; } - vic->booted = true; - return 0; } @@ -323,35 +275,74 @@ static int vic_load_firmware(struct vic *vic) return err; } -static int vic_open_channel(struct tegra_drm_client *client, - struct tegra_drm_context *context) + +static int vic_runtime_resume(struct device *dev) { - struct vic *vic = to_vic(client); + struct vic *vic = dev_get_drvdata(dev); int err; - err = pm_runtime_resume_and_get(vic->dev); + err = clk_prepare_enable(vic->clk); if (err < 0) return err; + usleep_range(10, 20); + + err = reset_control_deassert(vic->rst); + if (err < 0) + goto disable; + + usleep_range(10, 20); + err = vic_load_firmware(vic); if (err < 0) - goto rpm_put; + goto assert; err = vic_boot(vic); if (err < 0) - goto rpm_put; + goto assert; + + return 0; + +assert: + reset_control_assert(vic->rst); +disable: + clk_disable_unprepare(vic->clk); + return err; +} + +static int vic_runtime_suspend(struct device *dev) +{ + struct vic *vic = dev_get_drvdata(dev); + int err; + + err = reset_control_assert(vic->rst); + if (err < 0) + return err; + + usleep_range(2000, 4000); + + clk_disable_unprepare(vic->clk); + + return 0; +} + +static int vic_open_channel(struct tegra_drm_client *client, + struct tegra_drm_context *context) +{ + struct vic *vic = to_vic(client); + int err; + + err = pm_runtime_resume_and_get(vic->dev); + if (err < 0) + return err; context->channel = host1x_channel_get(vic->channel); if (!context->channel) { - err = -ENOMEM; - goto rpm_put; + pm_runtime_put(vic->dev); + return -ENOMEM; } return 0; - -rpm_put: - pm_runtime_put(vic->dev); - return err; } static void vic_close_channel(struct tegra_drm_context *context) @@ -359,7 +350,6 @@ static void vic_close_channel(struct tegra_drm_context *context) struct vic *vic = to_vic(context->client); host1x_channel_put(context->channel); - pm_runtime_put(vic->dev); }