From mboxrd@z Thu Jan 1 00:00:00 1970 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,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 AAA2DC33CB1 for ; Tue, 14 Jan 2020 08:19:27 +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 5C7902075B for ; Tue, 14 Jan 2020 08:19:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=brkho-com.20150623.gappssmtp.com header.i=@brkho-com.20150623.gappssmtp.com header.b="Qlt2Jrtx" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5C7902075B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=brkho.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 135DD6E2E5; Tue, 14 Jan 2020 08:19:26 +0000 (UTC) Received: from mail-yw1-xc64.google.com (mail-yw1-xc64.google.com [IPv6:2607:f8b0:4864:20::c64]) by gabe.freedesktop.org (Postfix) with ESMTPS id 601AD6E0CC for ; Mon, 13 Jan 2020 15:37:21 +0000 (UTC) Received: by mail-yw1-xc64.google.com with SMTP id i190so6337615ywc.2 for ; Mon, 13 Jan 2020 07:37:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brkho-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=WAq6TrEVx22C9NeXV+u5E8p8eBKHJtE8qNPoQl4adsE=; b=Qlt2JrtxXffRVq9WBDU89WEUScfSt5bAr4nawTezguWtOz2UrnbkFTnmJhBhndv75o MUYHSbpZPlkXQgjoxuAJTTfbyZVac1cyRTtpQEgrXqmzbYFtHxAlVax6ogB1d9En28jq a1oKICSwZpEwqXmwcsuSIQE44bZHgkNz4twckgnGcC3f9xh68blQ51sGaNJr2Lfhqw7L zc73yl6oiVrpCpkUbSl9kzL/gxijXiFYWfGOKnGoAhcRxbsXoJVsar924b9aBb5qK0x1 uST7IMadkwfISnpzlEPxYX4R4I8pHIEPe2lVcnxD+wy68F8pMI/icsLsFBgHsdwm4p57 ESrg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=WAq6TrEVx22C9NeXV+u5E8p8eBKHJtE8qNPoQl4adsE=; b=g2D6kMYOgYBYALx5PlRrCftgGiIhf+VEwdpMXJNv0SssnmvAMj7CEHc+Qc/B08fROO yIETfWokKwMB0+rbQn7vDdlElMwm+xo8jAo0HulERZ+6t+FcbUpAKIAYoMlzeHLykBiI aRnUzSHJlyJA8BtEru596unv0+geG69O7wGNbyzEHQjTeac24ghpgyrT01vg6yDx8eR/ 0eJa7XaiRsMOkMmS0DFiNJeNbf53CRvkQqWDCCpAe6a4ioQjewoYCVncUSzUBa68WC+N zpo7TtGIPBUBqUFMqctbjHz2Of3psgWhph4kuSnqiwpt4wVae/AxuAMP/bziEj3CXpVT tLQw== X-Gm-Message-State: APjAAAWRDKdujgF+bOVpHtMMEHYQCOjjsnH+vBkA5M1h6ZEVzjGobthw v0hrQexxZx921+KD44H+0XS+xCPvb5t2Hi1j100AFDLTEJTizA== X-Google-Smtp-Source: APXvYqzQmLBNNT0a1aEnDqzSaVursng0om65Vx4mgRanu6nthloLlNoHL5C/UNEtGCLK6Btwv8oweeewjFGS X-Received: by 2002:a81:980e:: with SMTP id p14mr14497442ywg.24.1578929840530; Mon, 13 Jan 2020 07:37:20 -0800 (PST) Received: from hob1.nyc.corp.google.com ([100.118.32.120]) by smtp-relay.gmail.com with ESMTPS id m193sm1672393ywd.0.2020.01.13.07.37.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Jan 2020 07:37:20 -0800 (PST) X-Relaying-Domain: brkho.com From: Brian Ho To: freedreno@lists.freedesktop.org Subject: [PATCH 1/2] drm/msm: Add a GPU-wide wait queue Date: Mon, 13 Jan 2020 10:36:04 -0500 Message-Id: <20200113153605.52350-2-brian@brkho.com> X-Mailer: git-send-email 2.25.0.rc1.283.g88dfdc4193-goog In-Reply-To: <20200113153605.52350-1-brian@brkho.com> References: <20200113153605.52350-1-brian@brkho.com> MIME-Version: 1.0 X-Mailman-Approved-At: Tue, 14 Jan 2020 08:19:25 +0000 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: robdclark@chromium.org, Brian Ho , David Airlie , "open list:DRM DRIVER FOR MSM ADRENO GPU" , open list , "open list:DRM DRIVER FOR MSM ADRENO GPU" , hoegsberg@chromium.org, Sean Paul Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This wait queue is signaled on all IRQs for a given GPU and will be used as part of the new MSM_WAIT_IOVA ioctl so userspace can sleep until the value at a given iova reaches a certain condition. Signed-off-by: Brian Ho --- drivers/gpu/drm/msm/msm_gpu.c | 4 ++++ drivers/gpu/drm/msm/msm_gpu.h | 3 +++ 2 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index a052364a5d74..d7310c1336e5 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -779,6 +779,8 @@ void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, static irqreturn_t irq_handler(int irq, void *data) { struct msm_gpu *gpu = data; + wake_up_all(&gpu->event); + return gpu->funcs->irq(gpu); } @@ -871,6 +873,8 @@ int msm_gpu_init(struct drm_device *drm, struct platform_device *pdev, spin_lock_init(&gpu->perf_lock); + init_waitqueue_head(&gpu->event); + /* Map registers: */ gpu->mmio = msm_ioremap(pdev, config->ioname, name); diff --git a/drivers/gpu/drm/msm/msm_gpu.h b/drivers/gpu/drm/msm/msm_gpu.h index ab8f0f9c9dc8..60562f065dbc 100644 --- a/drivers/gpu/drm/msm/msm_gpu.h +++ b/drivers/gpu/drm/msm/msm_gpu.h @@ -104,6 +104,9 @@ struct msm_gpu { struct msm_gem_address_space *aspace; + /* GPU-wide wait queue that is signaled on all IRQs */ + wait_queue_head_t event; + /* Power Control: */ struct regulator *gpu_reg, *gpu_cx; struct clk_bulk_data *grp_clks; -- 2.25.0.rc1.283.g88dfdc4193-goog _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel