From patchwork Fri Nov 11 05:16:08 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gustavo Padovan X-Patchwork-Id: 9422469 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 770506047D for ; Fri, 11 Nov 2016 05:16:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6904C298ED for ; Fri, 11 Nov 2016 05:16:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5D82D298F0; Fri, 11 Nov 2016 05:16:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id CBEA3298ED for ; Fri, 11 Nov 2016 05:16:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2EFF689A62; Fri, 11 Nov 2016 05:16:30 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-pf0-f195.google.com (mail-pf0-f195.google.com [209.85.192.195]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5F40789A62 for ; Fri, 11 Nov 2016 05:16:29 +0000 (UTC) Received: by mail-pf0-f195.google.com with SMTP id i88so1085838pfk.2 for ; Thu, 10 Nov 2016 21:16:29 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=S795shf/B4vAuRjxcJpswoTdJ4JYdY1u2zUruzYy1O4=; b=AbwE23e7vwOaiGTU16PeNSfY3jOhHsD+UOuxEWUgBf4Vzs72MuHFTYB7m0DyPH6x3m XCl0HpipJ/QXojI28/O79/4k+6bsPfivwGR86pKot9mUkHkJ+DT7DvfGpH5EAoxTAZr7 s4v4WuYhokQ76SruAf7Pf3WKd12GsdHUmXPY0wAL3KA+GsXQv4FmhqPtvmnB2BD3hnIG 9One9pwhOnEeDKi8RtJwGMtt8vzDwmvkjUkNXAMogT0K3OZyJahpzn8/1vM8rV+Ojuqw pBWC98hKtEzoQeHa1axpCSYVgMvaSBFi017ntn1P+ECexGC9NpiKxUYjq41T9o8HWEw8 OwKw== X-Gm-Message-State: ABUngvde/9Z50pqYFm2s0om7FfmARWqTN+396Si5ZWcLGplTtSIzPsj328SlJMRjki3D7g== X-Received: by 10.98.61.21 with SMTP id k21mr3162019pfa.118.1478841388978; Thu, 10 Nov 2016 21:16:28 -0800 (PST) Received: from jade.nodan1.kt.home.ne.jp (202-72-64-164.koalanet.ne.jp. [202.72.64.164]) by smtp.gmail.com with ESMTPSA id yz6sm11105414pab.35.2016.11.10.21.16.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 10 Nov 2016 21:16:28 -0800 (PST) From: Gustavo Padovan To: dri-devel@lists.freedesktop.org Subject: [PATCH v8 2/3] drm/fence: add fence timeline to drm_crtc Date: Fri, 11 Nov 2016 14:16:08 +0900 Message-Id: <1478841369-20826-3-git-send-email-gustavo@padovan.org> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1478841369-20826-1-git-send-email-gustavo@padovan.org> References: <1478841369-20826-1-git-send-email-gustavo@padovan.org> MIME-Version: 1.0 Cc: marcheu@google.com, Daniel Stone , seanpaul@google.com, Daniel Vetter , linux-kernel@vger.kernel.org, laurent.pinchart@ideasonboard.com, Gustavo Padovan , John Harrison , m.chehab@samsung.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Gustavo Padovan Create one timeline context for each CRTC to be able to handle out-fences and signal them. It adds a few members to struct drm_crtc: fence_context, where we store the context we get from fence_context_alloc(), the fence seqno and the fence lock, that we pass in fence_init() to be used by the fence. v2: Comment by Daniel Stone: - add BUG_ON() to fence_to_crtc() macro v3: Comment by Ville Syrjälä - Use more meaningful name as crtc timeline name v4: Comments by Brian Starkey - Use even more meaninful name for the crtc timeline - add doc for timeline_name Comment by Daniel Vetter - use in-line style for comments - rebase after fence -> dma_fence rename v5: Comment by Daniel Vetter - Add doc for drm_crtc_fence_ops Signed-off-by: Gustavo Padovan Reviewed-by: Daniel Vetter Reviewed-by: Sean Paul --- drivers/gpu/drm/drm_crtc.c | 31 +++++++++++++++++++++++++++++++ include/drm/drm_crtc.h | 45 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 154e040..9b9881b 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -165,6 +165,32 @@ static void drm_crtc_crc_fini(struct drm_crtc *crtc) #endif } +static const char *drm_crtc_fence_get_driver_name(struct dma_fence *fence) +{ + struct drm_crtc *crtc = fence_to_crtc(fence); + + return crtc->dev->driver->name; +} + +static const char *drm_crtc_fence_get_timeline_name(struct dma_fence *fence) +{ + struct drm_crtc *crtc = fence_to_crtc(fence); + + return crtc->timeline_name; +} + +static bool drm_crtc_fence_enable_signaling(struct dma_fence *fence) +{ + return true; +} + +const struct dma_fence_ops drm_crtc_fence_ops = { + .get_driver_name = drm_crtc_fence_get_driver_name, + .get_timeline_name = drm_crtc_fence_get_timeline_name, + .enable_signaling = drm_crtc_fence_enable_signaling, + .wait = dma_fence_default_wait, +}; + /** * drm_crtc_init_with_planes - Initialise a new CRTC object with * specified primary and cursor planes. @@ -222,6 +248,11 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, return -ENOMEM; } + crtc->fence_context = dma_fence_context_alloc(1); + spin_lock_init(&crtc->fence_lock); + snprintf(crtc->timeline_name, sizeof(crtc->timeline_name), + "CRTC:%d-%s", crtc->base.id, crtc->name); + crtc->base.properties = &crtc->properties; list_add_tail(&crtc->head, &config->crtc_list); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 11780a9..0870de1 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -32,6 +32,8 @@ #include #include #include +#include +#include #include #include #include @@ -739,9 +741,52 @@ struct drm_crtc { */ struct drm_crtc_crc crc; #endif + + /** + * @fence_context: + * + * timeline context used for fence operations. + */ + unsigned int fence_context; + + /** + * @fence_lock: + * + * spinlock to protect the fences in the fence_context. + */ + + spinlock_t fence_lock; + /** + * @fence_seqno: + * + * Seqno variable used as monotonic counter for the fences + * created on the CRTC's timeline. + */ + unsigned long fence_seqno; + + /** + * @timeline_name: + * + * The name of the CRTC's fence timeline. + */ + char timeline_name[32]; }; /** + * dma_crtc_fence_ops - fence ops for the drm_crtc timeline + * + * It contains the dma_fence_ops that should be called by the dma_fence + * code. CRTC core should use this ops when initializing fences. + */ +extern const struct dma_fence_ops drm_crtc_fence_ops; + +static inline struct drm_crtc *fence_to_crtc(struct dma_fence *fence) +{ + BUG_ON(fence->ops != &drm_crtc_fence_ops); + return container_of(fence->lock, struct drm_crtc, fence_lock); +} + +/** * struct drm_mode_set - new values for a CRTC config change * @fb: framebuffer to use for new config * @crtc: CRTC whose configuration we're about to change