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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 DF5A9CD582B for ; Wed, 7 Jan 2026 10:10:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=uE4IEal+eyr3KmCFdGNxqExsGvkI6UU9vx7HT65gqvI=; b=p3p2Ag7bTnes9Cli7FG8krka8a qpaU/CEFxo6q8lS5NXvqnggSKPigHDEyG5gFqFRaLjZRfKMB/tLZi0OAi5b2XrxG/IEDBYlRE8wpp 9JdLYsLbd+OPO60WP+agPn9rq3K8j7pWEHNY3q8Wox2pAQ8FPtFmm1Zmq7/9YxKXfGDtorl4HGO/v 0LPHkYJEVfBr1WIRjg00NG/8WggUTcBTh6hybY6wtyFY/rIn826YqhYJylgFnjBHVnwyLaTB8f5lB jqre9j02lUoMuI8Ezf0h1L7fUPJLPS+VNzq5FSUWj63daip6CfCtLIjvKJr0+ZjbIHznfaSPV9uDz OiaHg0hA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdQUm-0000000Ef0c-40PU; Wed, 07 Jan 2026 10:10:28 +0000 Received: from bali.collaboradmins.com ([2a01:4f8:201:9162::2]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vdQUg-0000000EeqS-3DID; Wed, 07 Jan 2026 10:10:24 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1767780617; bh=TUtVT7Ue6aFFvi66GRXEy5nZ5hyvRNuhRle7WXwFkRg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iyLhWYRwsAerllmydDP73VfbLhvr8Le8mw3Xh3yGEP2kdWVbbdh4uPN2IeGrx1n6V G2DaMkOo9V10rGz5IM981tX0vJDx7DLyWZG2pZy6Y7GP1vUzJqkkoNKxte69Z2F+1W y2ISw8n5pXevY/4sCASFFkBV3oxnsYnjQ3oZpXfsW1VpRRIHzU+Ed2pvVKYHpK26Rh Prm8NOkC3JaYs1hZKngr0cfcCJvCmYWZn5QEvAYatSqHKSmF+qJI1SeA25ilhXvSmY 42xOxMG/xFcqEKu+rbWec1jpBL24vHT5i7wnji1cKs+hni5KiRuZLcOIul0rqG3FjO 6+2NfXm+ElBcA== Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:7e36:2305:d47f:6e43]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bali.collaboradmins.com (Postfix) with ESMTPSA id 759BA17E368C; Wed, 7 Jan 2026 11:10:17 +0100 (CET) From: Benjamin Gaignard To: joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, heiko@sntech.de, nicolas.dufresne@collabora.com, p.zabel@pengutronix.de, mchehab@kernel.org Cc: iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-media@vger.kernel.org, kernel@collabora.com, Benjamin Gaignard Subject: [PATCH v11 5/7] media: verisilicon: AV1: Restore IOMMU context before decoding a frame Date: Wed, 7 Jan 2026 11:09:55 +0100 Message-ID: <20260107101005.84039-6-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260107101005.84039-1-benjamin.gaignard@collabora.com> References: <20260107101005.84039-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260107_021022_997713_59A8FCEB X-CRM114-Status: GOOD ( 10.52 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org AV1 is a stateless decoder which means multiple AV1 bitstreams could be decoded at the same time using the same hardware block. Before decoding a frame it is needed to restore the iommu tables to avoid mixing decode contexts. Signed-off-by: Benjamin Gaignard Reviewed-by: Nicolas Dufresne --- .../verisilicon/rockchip_vpu981_hw_av1_dec.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c b/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c index e4703bb6be7c..d9e68e0ded68 100644 --- a/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c +++ b/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c @@ -5,6 +5,9 @@ * Author: Benjamin Gaignard */ +#include +#include + #include #include "hantro.h" #include "hantro_v4l2.h" @@ -2095,12 +2098,24 @@ rockchip_vpu981_av1_dec_set_output_buffer(struct hantro_ctx *ctx) hantro_write_addr(vpu, AV1_TILE_OUT_MV, mv_addr); } +static void rockchip_vpu981_av1_restore_iommu(struct hantro_ctx *ctx) +{ + struct iommu_domain *domain; + + /* Before decoding any frame iommu context need to be restored */ + domain = iommu_get_domain_for_dev(ctx->dev->v4l2_dev.dev); + if (domain) + vsi_iommu_restore_ctx(domain); +} + int rockchip_vpu981_av1_dec_run(struct hantro_ctx *ctx) { struct hantro_dev *vpu = ctx->dev; struct vb2_v4l2_buffer *vb2_src; int ret; + rockchip_vpu981_av1_restore_iommu(ctx); + hantro_start_prepare_run(ctx); ret = rockchip_vpu981_av1_dec_prepare_run(ctx); -- 2.43.0