From nobody Thu Nov 14 05:07:21 2024 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 561CBC4167B for ; Tue, 12 Dec 2023 12:20:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346568AbjLLMUg (ORCPT ); Tue, 12 Dec 2023 07:20:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55840 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346474AbjLLMUK (ORCPT ); Tue, 12 Dec 2023 07:20:10 -0500 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3312AED; Tue, 12 Dec 2023 04:20:10 -0800 (PST) X-UUID: c60dd12098e811eeba30773df0976c77-20231212 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=RWVos3ttma+ouGUpqkowB6aiHNm3iis8v3nPP5nxLek=; b=sNHKt1qEZDijnm5ZKrZMBmqosskfDxLvBgwJoYtaUXtKJ5TTHqjaw2tmGaX343+V0Xruar65JvahX59G8PDcRrttDEKdES3jVU8EODllnz9eGETBvUM7P+V6ASoiGRTD+4z/3XBY8srlNEDwL8RLKz+aQXj/ZTrvSulh+rZ4o3Q=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.35,REQID:41375495-af01-497d-9d39-cd7791029042,IP:0,U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:5d391d7,CLOUDID:00fd94fd-4a48-46e2-b946-12f04f20af8c,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO, DKR:0,DKP:0,BRR:0,BRE:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: c60dd12098e811eeba30773df0976c77-20231212 Received: from mtkmbs14n2.mediatek.inc [(172.21.101.76)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 511087762; Tue, 12 Dec 2023 20:20:01 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs13n2.mediatek.inc (172.21.101.108) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Tue, 12 Dec 2023 20:20:01 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Tue, 12 Dec 2023 20:20:01 +0800 From: Hsiao Chien Sung To: AngeloGioacchino Del Regno , Chun-Kuang Hu , CK Hu CC: Philipp Zabel , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Matthias Brugger , Chen-Yu Tsai , Sean Paul , Fei Shao , Bibby Hsieh , , , , , , Hsiao Chien Sung Subject: [PATCH v4 07/17] drm/mediatek: Support alpha blending in Mixer Date: Tue, 12 Dec 2023 20:19:47 +0800 Message-ID: <20231212121957.19231-8-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20231212121957.19231-1-shawn.sung@mediatek.com> References: <20231212121957.19231-1-shawn.sung@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Support premultiply and coverage alpha blending in Mixer. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediate= k/mtk_ethdr.c index 73dc4da3ba3b..73c9e3da56a7 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -5,6 +5,7 @@ =20 #include #include +#include #include #include #include @@ -35,6 +36,7 @@ #define MIX_SRC_L0_EN BIT(0) #define MIX_L_SRC_CON(n) (0x28 + 0x18 * (n)) #define NON_PREMULTI_SOURCE (2 << 12) +#define PREMULTI_SOURCE (3 << 12) #define MIX_L_SRC_SIZE(n) (0x30 + 0x18 * (n)) #define MIX_L_SRC_OFFSET(n) (0x34 + 0x18 * (n)) #define MIX_FUNC_DCM0 0x120 @@ -153,7 +155,8 @@ void mtk_ethdr_layer_config(struct device *dev, unsigne= d int idx, struct mtk_plane_pending_state *pending =3D &state->pending; unsigned int offset =3D (pending->x & 1) << 31 | pending->y << 16 | pendi= ng->x; unsigned int align_width =3D ALIGN_DOWN(pending->width, 2); - unsigned int alpha_con =3D 0; + unsigned int mix_con =3D NON_PREMULTI_SOURCE; + bool replace_src_a =3D false; =20 dev_dbg(dev, "%s+ idx:%d", __func__, idx); =20 @@ -165,19 +168,28 @@ void mtk_ethdr_layer_config(struct device *dev, unsig= ned int idx, return; } =20 - if (state->base.fb && state->base.fb->format->has_alpha) - alpha_con =3D MIXER_ALPHA_AEN | MIXER_ALPHA; + mix_con |=3D MIXER_ALPHA_AEN | (state->base.alpha & MIXER_ALPHA); =20 - mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, alpha_con ? false : t= rue, - DEFAULT_9BIT_ALPHA, + if (state->base.pixel_blend_mode !=3D DRM_MODE_BLEND_COVERAGE) + mix_con |=3D PREMULTI_SOURCE; + + if (state->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE || + (state->base.fb && !state->base.fb->format->has_alpha)) { + /* + * Mixer doesn't support CONST_BLD mode, + * use a trick to make the output equivalent + */ + replace_src_a =3D true; + } + + mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, replace_src_a, MIXER_= ALPHA, pending->x & 1 ? MIXER_INX_MODE_EVEN_EXTEND : MIXER_INX_MODE_BYPASS, align_width / 2 - 1, cmdq_pkt); =20 mtk_ddp_write(cmdq_pkt, pending->height << 16 | align_width, &mixer->cmdq= _base, mixer->regs, MIX_L_SRC_SIZE(idx)); mtk_ddp_write(cmdq_pkt, offset, &mixer->cmdq_base, mixer->regs, MIX_L_SRC= _OFFSET(idx)); - mtk_ddp_write_mask(cmdq_pkt, alpha_con, &mixer->cmdq_base, mixer->regs, M= IX_L_SRC_CON(idx), - 0x1ff); + mtk_ddp_write(cmdq_pkt, mix_con, &mixer->cmdq_base, mixer->regs, MIX_L_SR= C_CON(idx)); mtk_ddp_write_mask(cmdq_pkt, BIT(idx), &mixer->cmdq_base, mixer->regs, MI= X_SRC_CON, BIT(idx)); } --=20 2.18.0