From patchwork Thu Dec 29 13:32:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Ceresoli X-Patchwork-Id: 637741 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55DB9C53210 for ; Thu, 29 Dec 2022 13:33:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233557AbiL2Ndv (ORCPT ); Thu, 29 Dec 2022 08:33:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53456 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233553AbiL2Ndn (ORCPT ); Thu, 29 Dec 2022 08:33:43 -0500 Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::229]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2CC6311C24; Thu, 29 Dec 2022 05:33:04 -0800 (PST) Received: from booty.fritz.box (unknown [77.244.183.192]) (Authenticated sender: luca.ceresoli@bootlin.com) by mail.gandi.net (Postfix) with ESMTPA id 44FBCFF810; Thu, 29 Dec 2022 13:33:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1672320782; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CmVEahmNOu/9XkwMiVdBvL6gDHPQH+245qlFUC5ws4k=; b=apw5+e6aWCj4dRLTZ1BGruiImviQ2Nozxdv0Zt9IRaT2cggI2CvLG/RdR8P6eEKCJS8Suu u2kZIH+RbxSjpo2pbioNY10citwaaoC0g65Bze8BWzeYq0dDGKIuNrVbv/r8g7lyHgMh8G yi+2i6wK24vxoXxRI1Z2K5ZoezHMJ52dk8BFMsqHgKHTTIbAuTwPMVra3wnMXwUJatGf+H oGqK3rso5948BeoOnuCCYlZSKhraFuOdCooH5D2EB8LCzApNmFJudq/U2r04ERrMIq9fG9 gsU/9f1JMqHeMukH67OtEDfrA0XM7BCPmf1q5vDF7tsGnPDrSm3QBuZd4JrImg== From: Luca Ceresoli To: Thierry Reding , Jonathan Hunter , Sowjanya Komatineni , Luca Ceresoli , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Mauro Carvalho Chehab , Greg Kroah-Hartman , Dmitry Osipenko , Hans Verkuil Cc: linux-media@vger.kernel.org, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, Thomas Petazzoni , Paul Kocialkowski , Richard Leitner Subject: [PATCH v3 18/21] staging: media: tegra-video: add syncpts for Tegra20 to struct tegra_vi Date: Thu, 29 Dec 2022 14:32:02 +0100 Message-Id: <20221229133205.981397-19-luca.ceresoli@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221229133205.981397-1-luca.ceresoli@bootlin.com> References: <20221229133205.981397-1-luca.ceresoli@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org In preparation to implement Tegra20 parallel video capture, add a variable to hold the required syncpt and document all the syncpt variables. Signed-off-by: Luca Ceresoli --- Changed in v3: - recycle mw_ack_sp[0] instead of adding out_sp No changes in v2 --- drivers/staging/media/tegra-video/vi.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/staging/media/tegra-video/vi.h b/drivers/staging/media/tegra-video/vi.h index 8fadca33bcc9..d5e1ed4217e0 100644 --- a/drivers/staging/media/tegra-video/vi.h +++ b/drivers/staging/media/tegra-video/vi.h @@ -117,11 +117,13 @@ struct tegra_vi { * @vi: Tegra video input device structure * @frame_start_sp: host1x syncpoint pointer to synchronize programmed capture * start condition with hardware frame start events through host1x - * syncpoint counters. + * syncpoint counters. (Tegra210) * @mw_ack_sp: host1x syncpoint pointer to synchronize programmed memory write * ack trigger condition with hardware memory write done at end of - * frame through host1x syncpoint counters. + * frame through host1x syncpoint counters (On Tegra20 used for the + * OUT_1 syncpt) * @sp_incr_lock: protects cpu syncpoint increment. + * @next_out_sp_idx: next expected value for mw_ack_sp[0], i.e. OUT_1 (Tegra20) * * @kthread_start_capture: kthread to start capture of single frame when * vb buffer is available. This thread programs VI CSI hardware @@ -173,6 +175,7 @@ struct tegra_vi_channel { struct host1x_syncpt *mw_ack_sp[GANG_PORTS_MAX]; /* protects the cpu syncpoint increment */ spinlock_t sp_incr_lock[GANG_PORTS_MAX]; + u32 next_out_sp_idx; struct task_struct *kthread_start_capture; wait_queue_head_t start_wait;