From nobody Fri Sep 20 12:45:07 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 C95C7CD13D3 for ; Mon, 18 Sep 2023 08:43:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240902AbjIRInM (ORCPT ); Mon, 18 Sep 2023 04:43:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39866 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240744AbjIRImb (ORCPT ); Mon, 18 Sep 2023 04:42:31 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D193C5 for ; Mon, 18 Sep 2023 01:42:20 -0700 (PDT) X-UUID: 434d157e55ff11ee8051498923ad61e6-20230918 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=fXr6Cut6jTnXdSAIgAVzIjJPsM8eECFQF8sZwclKBZM=; b=iN7ybDjMOX5ttJM9FcSOyYID6Tb9Iq5Je6hff/uFQn9J9AtvS/8BBkHrCDqUgMWFiMmh99VR4fzfF5aA7FnuqjbK+dDChJcyiEmxLN9tfiPwjM+AdlwXUJT9/Fpf5V8K19ZjXuRZ1h9ZbQTwLhOXqr8QskCiAOl7PLvpuWJAQ6I=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.31,REQID:7c141f63-48b2-46f7-94dc-963e5aa7ad58,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:0ad78a4,CLOUDID:c65327c3-1e57-4345-9d31-31ad9818b39f,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: 434d157e55ff11ee8051498923ad61e6-20230918 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 1196658862; Mon, 18 Sep 2023 16:42:12 +0800 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by mtkmbs11n2.mediatek.inc (172.21.101.187) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Mon, 18 Sep 2023 16:42:11 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Mon, 18 Sep 2023 16:42:11 +0800 From: Hsiao Chien Sung To: AngeloGioacchino Del Regno , Chun-Kuang Hu , Matthias Brugger CC: Daniel Vetter , David Airlie , Philipp Zabel , Chen-Yu Tsai , CK Hu , , , , , Hsiao Chien Sung Subject: [PATCH v2 08/11] drm/mediatek: Support alpha blending in VDOSYS1 Date: Mon, 18 Sep 2023 16:42:04 +0800 Message-ID: <20230918084207.23604-9-shawn.sung@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230918084207.23604-1-shawn.sung@mediatek.com> References: <20230918084207.23604-1-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 modes. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 48 ++++++++++++++++++++++------ 1 file changed, 38 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediate= k/mtk_ethdr.c index db7ac666ec5e..a41b3950e081 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 @@ -153,33 +155,59 @@ void mtk_ethdr_layer_config(struct device *dev, unsig= ned 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; + + union format { + u32 raw; + u8 str[5]; + } format; =20 dev_dbg(dev, "%s+ idx:%d", __func__, idx); =20 if (idx >=3D 4) return; =20 - if (!pending->enable) { + if (!pending->enable || !pending->width || !pending->height) { + /* + * instead of disabling layer with MIX_SRC_CON directly + * set the size to 0 to avoid screen shift due to mode switch + */ mtk_ddp_write(cmdq_pkt, 0, &mixer->cmdq_base, mixer->regs, MIX_L_SRC_SIZ= E(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); + + 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; + } + + format.raw =3D pending->format; + + dev_dbg(dev, "L%d: %ux%u(%u,%u)%s: SCA=3D0x%x(%u), MIX=3D0x%x\n", idx, + pending->width, pending->height, pending->x, pending->y, + format.str, (state->base.alpha & MIXER_ALPHA), + state->base.pixel_blend_mode, mix_con); =20 - mtk_mmsys_mixer_in_config(priv->mmsys_dev, idx + 1, alpha_con ? false : t= rue, - DEFAULT_9BIT_ALPHA, + 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_mask(cmdq_pkt, BIT(idx), &mixer->cmdq_base, mixer->regs, MI= X_SRC_CON, - BIT(idx)); + 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, + MIX_SRC_CON, BIT(idx)); } =20 void mtk_ethdr_config(struct device *dev, unsigned int w, --=20 2.18.0