From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E63763904DC; Wed, 14 Jan 2026 10:09:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768385374; cv=none; b=ggHhuJXgQbljyl+K46esLERhZSiDn3k9NxDPhWcSrVpCtBnzNNWdYbGmeWKZcn0tCNjQrihLnIYWenUAlWxUQUKvmvS/rEXFsjaiQGdg8/R3ryC8IbXFZGhQ5hBrOW1+WWYjYtJq9+w1b7+LyXKyKnNEIShBrujwIjI0hSQQUhQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768385374; c=relaxed/simple; bh=CYi9WPEwJZhsc3zV+Yjx9oQit131jjFmMvk5/4DaW3E=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MHZTBhokxQIjQj62fUjBCO7rKLPoeCmCbYNIaDCRhlWfr3hhIidesBrGORf/bwJtNFW38hPQ5JYnZcAvZV1+eXugl2qF77aBN5kJ5t2fqv12ob5Q8PCooydStz2wETOiHCkbnIZnQBqBIwPxqrk9VfjjH0CohufLEx6A/LiNs30= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=QUIxnmKm; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="QUIxnmKm" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1768385370; bh=CYi9WPEwJZhsc3zV+Yjx9oQit131jjFmMvk5/4DaW3E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QUIxnmKmxJKvu3V9z8nGvoUBo16WLheNkudCQJ/vTA5Te7iyg1oR+9Txn9bP/G99c +k8O/V+vsXvzfyKHxtrmzOWhgVaLSdmua7trKrxO/lo8KZQ13V+lU06MYr30W7LhBZ ImfU9HKjLmrBeZrQFuMnoThEhaNQt7644BQfRvVPlGb0Fnt3MHYY3OjFKjVM557Ukz JTOdAdSNn4lDc/BCIvpsuwrpMYBeSXj9cJkPBsoNBoy9w/82GTOxuJFsGktGfL92h3 MmesNqdyz1JWjcyV2bEh2b0+oMiiH9fNKIHeBKn0OXYKC/lxqzkDOFWwDbDTW41Xzm WgRc9plEf3aLg== Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:1dad:60e8:7174:bd20]) (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 C900217E1513; Wed, 14 Jan 2026 11:09:29 +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 v12 4/6] media: verisilicon: AV1: Restore IOMMU context before decoding a frame Date: Wed, 14 Jan 2026 11:09:16 +0100 Message-ID: <20260114100922.149187-5-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260114100922.149187-1-benjamin.gaignard@collabora.com> References: <20260114100922.149187-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 af854b149f35..ca159bcc3f76 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