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 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 D0FBBC79F83 for ; Fri, 4 Sep 2026 10:45:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1E59E10FA62; Fri, 4 Sep 2026 10:45:29 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="P4VteYfZ"; dkim-atps=neutral Received: from sea.source.kernel.org (sea.source.kernel.org [172.234.252.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1FD9010FA62 for ; Fri, 4 Sep 2026 10:45:27 +0000 (UTC) Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id EED1B435D7; Fri, 4 Sep 2026 10:45:26 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 211151F00A3E; Fri, 4 Sep 2026 10:45:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788518726; bh=hagYf35q6G2UhsHzty44d2izTZaC/NeM9Zitkk0WHRQ=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=P4VteYfZoOUKRz6lqankTJMKJHc22APwmujZJPl/o9mFh+IaXlyFuO4ak0voN5g1+ SkPOsetnsV8OgScpk2tWZMqM6V6brZ2/wcoAJdD37U/u1/ZUhg5SWVOjIeHELTS65P pbrK8W62YAb2sNPLRs8sJuv4H8SIWeVvm/qt2Bop5lmROPJTj6ET2fTuqE1+ltqHmJ cdFluDoQEkGzlkB2wggIhYLNLCP+idVVB06/yEMa5e2gQXMUSkDDSzsSzyojU8FSGA q3Le5bnorB5CtElF/RC4Yo0O8r1V1S75q7G6ZZomHcMbEjcxVMbnTKjkjyZ8sS5iWJ jw0cjbyxhhxxA== From: Thierry Reding Date: Fri, 04 Sep 2026 12:44:54 +0200 Subject: [PATCH v6 03/12] dt-bindings: gpu: host1x: Document memory-regions for NVDEC MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260904-tegra-vpr-v6-3-79042cfa8de5@nvidia.com> References: <20260904-tegra-vpr-v6-0-79042cfa8de5@nvidia.com> In-Reply-To: <20260904-tegra-vpr-v6-0-79042cfa8de5@nvidia.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Thierry Reding , Jonathan Hunter , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Sowjanya Komatineni , Luca Ceresoli , Mikko Perttunen , Yury Norov , Rasmus Villemoes , Russell King , Alexander Gordeev , Gerald Schaefer , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , Sven Schnelle , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , "Liam R. Howlett" , Vlastimil Babka , Mike Rapoport , Suren Baghdasaryan , Michal Hocko , Marek Szyprowski , Robin Murphy , Sumit Semwal , Benjamin Gaignard , Brian Starkey , John Stultz , "T.J. Mercier" , =?utf-8?q?Christian_K=C3=B6nig?= , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Catalin Marinas , Will Deacon , Chun Ng , Mark Rutland , Saravana Kannan Cc: Thierry Reding , devicetree@vger.kernel.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux.dev, linaro-mm-sig@lists.linaro.org, linux-trace-kernel@vger.kernel.org, Thierry Reding X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1123; i=treding@nvidia.com; h=from:subject:message-id; bh=96od8SnVSYMiavrRwbh7Ehk1YxWlsQuy9Uk4ZKu5YoI=; b=owEBbQKS/ZANAwAKAd0jrNd/PrOhAcsmYgBqmqE6a7RpJI/GCW4mTGRJ87hxtCRDZnRUuKBN7 pMhWoYQXcOJAjMEAAEKAB0WIQSI6sMIAUnM98CNyJ/dI6zXfz6zoQUCapqhOgAKCRDdI6zXfz6z occEEACxZ8dNEU7BnEN2Ha6fyLYWa+f1AwIxLCAG071sdb02B+kE1t9bISlQZt9JywhEH3ommb6 efRnWfcpz3n38v0h0WnFrjzBJgURRzhc3NWBBpF4on5vJuXUFd14lhkleafdS1eTlcX+2jhKsX1 seoHP+vg0Ks6FKmpTL0OKgtrKgy6ku+wkPNhK2pUylTPM4v6NP9j5OEKOCJ2TkFjwRUx1/i6viq j2hDpWCI+onyBKR5P5Lf90rVaBhYDO8zZpivHAvfwexg/kCj+UCVg0GE6cwNIo6e3AOYZS4fYUC E9H4MftsWwewlBj1Zq2KjRC3hyTfWS5DLPp59ZRTbgeLWg8iA5wuGJ/ED+CIHYUvticQ93nMVA1 n7gvWqthSmuAunsNZx8nmg0jwJYFVmG38lGOYm2wYbwE9brDWT2neM6V2lM3zvfaNDffWqDy3mq hYEZq1xglKDRgNdZ+JPDMHDHHc0dL+1HqbX46xkB0bO/vni8UXpBZTLR/vikYgRGc6l+a0/Bxs+ 6/BcZttVbk+FEyNWKKHRCbF9oeSxsA6iPh/5W7ER4DU5e8yF0DlSE0KEpIkxMbhHTPVwqvQewrW zHc6+V4hT2sFlQ1D1Y7fcOVlrGyML932LvpQOio2aw9cbloake8bpTwzaOZi7hyrxZ99VMjAQLt EEsWSIg7v53KUNg== X-Developer-Key: i=treding@nvidia.com; a=openpgp; fpr=88EAC3080149CCF7C08DC89FDD23ACD77F3EB3A1 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Thierry Reding The video protection region is a reserved memory region that can be used for secure video playback. NVDEC can access this region to decode images into securely. Reviewed-by: Rob Herring (Arm) Signed-off-by: Thierry Reding --- .../devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml index 4eb325cfd296..bcaaabca945d 100644 --- a/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml +++ b/Documentation/devicetree/bindings/gpu/host1x/nvidia,tegra234-nvdec.yaml @@ -60,6 +60,14 @@ properties: - const: dma-mem - const: write + memory-region: + items: + - description: reference to the video protection memory region + + memory-region-names: + items: + - const: protected + nvidia,memory-controller: $ref: /schemas/types.yaml#/definitions/phandle description: -- 2.55.0