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 X-Spam-Level: X-Spam-Status: No, score=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6211EC43331 for ; Tue, 24 Mar 2020 14:20:33 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 3547920788 for ; Tue, 24 Mar 2020 14:20:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="Xsl08M/P" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3547920788 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F0A4E89C16; Tue, 24 Mar 2020 14:20:28 +0000 (UTC) Received: from mail-wr1-x441.google.com (mail-wr1-x441.google.com [IPv6:2a00:1450:4864:20::441]) by gabe.freedesktop.org (Postfix) with ESMTPS id 09D1D895E7 for ; Tue, 24 Mar 2020 14:20:26 +0000 (UTC) Received: by mail-wr1-x441.google.com with SMTP id t7so16980809wrw.12 for ; Tue, 24 Mar 2020 07:20:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wAwZJvvwLgZDn1ywdQ6nPmOn7qCnl4VE3QuxXpY3Nzg=; b=Xsl08M/PvJVLWLPPkngG3LxHwcqqyhr1PyrntQo1Pjna55EDs/31lpg+TG8gyM5/HN 3qsQEuzohclevTKn8dveoyUoF6SPBqe9oy0xahadz23jBugTJ6u3GqH6gID8E2tNcGR3 UwHXHkoUTt/s20spoekxsaOKiGnKxhmDvMc3ZkpCIltoF5iM4f5siceEK58bjtzDZnnp zUyCUP0ZPizxM5h//4JTGHjyIMgA2B0r8ok+mhu4vaIWN7364GedTRyqqbs5YNhYELKs NEYFvYUjqli9tU9gd6UxpnDofklf/imdf613vFbnVFKXDQC9CcbZYullWH7c+K4ejNM6 QfEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=wAwZJvvwLgZDn1ywdQ6nPmOn7qCnl4VE3QuxXpY3Nzg=; b=JHXS7wNorxiHESUcmfLiiohCa6MUFerYl/+fWW/pDV6jY1ObctIXfbvSYzJStp+yh3 P15EQmQnGrQPHBwwhxhUSEae5zi60JrgDniPvEpnS3chK8xGJPshmpPe+FX2UPLR5DQz sQEG4lUYcK79OVaZqCzlB9W0w0mhSSBtC/tQRi2/MUudEpI+SqO75nnwVRWDW+bnvaoo NqsGxPXmC36Pn18Otr+p5bDM8M/IoAKVtCtCBwd8+8bSQc5fL77nccmdDFitp2RU6r8J 9AD8CGCxbs6FwqLdPQ7pz1+ij49Kt2PkT6KQySiY3KnsKQpHGOJl8V7N4H6MQIe69LQS O47w== X-Gm-Message-State: ANhLgQ1d8tARfxl+MxHZNGds/uyyvlb6FM4N0VSOsDdW5vvmnD3IWkfF 1GmYiT2Zs4I4H5GDomDkvIUAgQ== X-Google-Smtp-Source: ADFU+vuWKFRgRnFG7irPanaxg/SMcv7FNJEKjQfKU2zqGDySjvyd/47d3NcTB7S4cBNrQ3ZYXpAi9g== X-Received: by 2002:a5d:49c8:: with SMTP id t8mr22990127wrs.5.1585059624463; Tue, 24 Mar 2020 07:20:24 -0700 (PDT) Received: from bender.baylibre.local ([2a01:e35:2ec0:82b0:5c5f:613e:f775:b6a2]) by smtp.gmail.com with ESMTPSA id o4sm28688472wrp.84.2020.03.24.07.20.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2020 07:20:23 -0700 (PDT) From: Neil Armstrong To: daniel@ffwll.ch, dri-devel@lists.freedesktop.org Subject: [PATCH v3 1/7] drm/fourcc: Add modifier definitions for describing Amlogic Video Framebuffer Compression Date: Tue, 24 Mar 2020 15:20:10 +0100 Message-Id: <20200324142016.31824-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20200324142016.31824-1-narmstrong@baylibre.com> References: <20200324142016.31824-1-narmstrong@baylibre.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: mjourdan@baylibre.com, Neil Armstrong , linux-kernel@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Amlogic uses a proprietary lossless image compression protocol and format for their hardware video codec accelerators, either video decoders or video input encoders. It considerably reduces memory bandwidth while writing and reading frames in memory. The underlying storage is considered to be 3 components, 8bit or 10-bit per component, YCbCr 420, single plane : - DRM_FORMAT_YUV420_8BIT - DRM_FORMAT_YUV420_10BIT This modifier will be notably added to DMA-BUF frames imported from the V4L2 Amlogic VDEC decoder. This introduces the basic layout composed of: - a body content organized in 64x32 superblocks with 4096 bytes per superblock in default mode. - a 32 bytes per 128x64 header block This layout is tranferrable between Amlogic SoCs supporting this modifier. Signed-off-by: Neil Armstrong --- include/uapi/drm/drm_fourcc.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 8bc0b31597d8..6564813d2f7a 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -309,6 +309,7 @@ extern "C" { #define DRM_FORMAT_MOD_VENDOR_BROADCOM 0x07 #define DRM_FORMAT_MOD_VENDOR_ARM 0x08 #define DRM_FORMAT_MOD_VENDOR_ALLWINNER 0x09 +#define DRM_FORMAT_MOD_VENDOR_AMLOGIC 0x0a /* add more to the end as needed */ @@ -804,6 +805,35 @@ extern "C" { */ #define DRM_FORMAT_MOD_ALLWINNER_TILED fourcc_mod_code(ALLWINNER, 1) +/* + * Amlogic Video Framebuffer Compression modifiers + * + * Amlogic uses a proprietary lossless image compression protocol and format + * for their hardware video codec accelerators, either video decoders or + * video input encoders. + * + * It considerably reduces memory bandwidth while writing and reading + * frames in memory. + * + * The underlying storage is considered to be 3 components, 8bit or 10-bit + * per component YCbCr 420, single plane : + * - DRM_FORMAT_YUV420_8BIT + * - DRM_FORMAT_YUV420_10BIT + */ +#define DRM_FORMAT_MOD_AMLOGIC_FBC(__modes) fourcc_mod_code(AMLOGIC, __modes) + +/* + * Amlogic FBC Basic Layout + * + * The basic layout is composed of: + * - a body content organized in 64x32 superblocks with 4096 bytes per + * superblock in default mode. + * - a 32 bytes per 128x64 header block + * + * This layout is transferrable between Amlogic SoCs supporting this modifier. + */ +#define DRM_FORMAT_MOD_AMLOGIC_FBC_LAYOUT_BASIC (1ULL << 0) + #if defined(__cplusplus) } #endif -- 2.22.0 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel