From patchwork Fri Apr 7 13:38:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Luca Ceresoli X-Patchwork-Id: 13204839 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 8492AC6FD1D for ; Fri, 7 Apr 2023 13:40:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ABC2F10EDAF; Fri, 7 Apr 2023 13:40:45 +0000 (UTC) Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [IPv6:2001:4b98:dc4:8::228]) by gabe.freedesktop.org (Postfix) with ESMTPS id ED08110ED67 for ; Fri, 7 Apr 2023 13:40:42 +0000 (UTC) Received: from booty.fritz.box (unknown [77.244.183.192]) (Authenticated sender: luca.ceresoli@bootlin.com) by mail.gandi.net (Postfix) with ESMTPA id 23AF51BF214; Fri, 7 Apr 2023 13:40:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1680874841; 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=HkPKIcZp6R70IQUsP2DrzapggysnYMdLAv56vjx+0ns=; b=NJJKJCNG4s18QkIHBHmPhK+YJL85Inae/66IWUPJvIU2BAlFDliNapdlj88pBgyE9iM6Ew AJMP80FjcBO1SRbCWn1WiASOfTl7WzT+EkRkBPcngV8TZNKw+301enC1QihZVdK1qwPzUO xh3h6LAiAbjFEc7WdhKJ4ExM5Dz05Zay/ri3ENsXzV+1yjwesjEUb8Pnn5D5EFnqIjWBFh 25v7Nkky4n76nbtB6gfvVKenOja7c4Lxe8HLU+qXibVzLQg+UUatnfc8Hlz4gTlxstV+/8 yWRyYtSdqG+EpBBsMlrzgqHNmjRp9+oN62WRtGVylJt8QGzNGazhyLXLdANREw== From: Luca Ceresoli To: linux-tegra@vger.kernel.org Subject: [PATCH v5 17/20] staging: media: tegra-video: add syncpts for Tegra20 to struct tegra_vi Date: Fri, 7 Apr 2023 15:38:49 +0200 Message-Id: <20230407133852.2850145-18-luca.ceresoli@bootlin.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230407133852.2850145-1-luca.ceresoli@bootlin.com> References: <20230407133852.2850145-1-luca.ceresoli@bootlin.com> MIME-Version: 1.0 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: devicetree@vger.kernel.org, Laurent Pinchart , Krzysztof Kozlowski , Richard Leitner , Thomas Petazzoni , Luca Ceresoli , linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Rob Herring , Jonathan Hunter , Paul Kocialkowski , Thierry Reding , Sowjanya Komatineni , dri-devel@lists.freedesktop.org, Greg Kroah-Hartman , Hans Verkuil , Dmitry Osipenko , Mauro Carvalho Chehab , linux-media@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 Reviewed-by: Dmitry Osipenko --- No changes in v5 Changed in v4: - Added review tags 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 dfb5870b1411..02f940f2e2eb 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 @@ -175,6 +177,7 @@ 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;