From nobody Thu Sep 19 23:07:23 2024 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 84BCB155756 for ; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; cv=none; b=PFYLCpGL6MuvHdZmSF45RyIZCJMmwEX8e8REimUFmxHDlc5CAW2JLBJqmR+0sUiUEMYh+pLqodaA5bW90/qQOW4ev0kc55mBqbab74gdh0m2wpKa1chlyMWVONRLNgburPNxUy+MJzUBwBicsIrw3d7XXnY5H7iKrVkjROcGtu4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; c=relaxed/simple; bh=ETsnlL8B7SX5GDU+JpS9dzXyLldBHM/ahdNPF8Smk6o=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Gidlm+qvZc/fn0YMkdWMMuxbVasyHk1gjLH09X0AiNQylcO9e2MGeZFKSAP02z7QmteOZo895drd8RwKm8TIkVyRQp0lJ3zrIV5XYJe0OwxdawFtkmaCm6X6kQe1BaKkMTp0FsW7tZv4GA9sI55zNBs2O6MFlAy6p94aEjD/M68= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=E2/PTasX; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="E2/PTasX" Received: by smtp.kernel.org (Postfix) with ESMTPS id 33453C4AF07; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718818032; bh=ETsnlL8B7SX5GDU+JpS9dzXyLldBHM/ahdNPF8Smk6o=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=E2/PTasXCBWk9IAIfsSs/M2PYBon5dLDwCeslZDAyfVnt+g2aKt9xRS9haB20xnEQ azRyjtdZ5SURnoDWtyVmRgAHKI+bDYVi2IFHLO+EIEi8qYm6towYYnUaztlCDMRB+8 GaCNU9luqtNusqMs8bL17hAXsSCjwnOSXgpN26SdjdqD7bNtkLM/tuhty14vszZ7so D3Ukmz8eskxHe2IlJ8568H5JHn8yyDdVHCb7ubzHkeuDjlMZjopM7ISbyqo510rcD2 Ps2LN3COcdgy0+L5cyzd6xrlV3I/loDkWxRnmvmWqK1SyjKAUfAYaNiegOXXBVn8W7 XiH5M65MIi/Sg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E41AC2BB85; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) From: Hsiao Chien Sung via B4 Relay Date: Thu, 20 Jun 2024 01:27:06 +0800 Subject: [PATCH 1/5] drm/mediatek: Support "None" blending in OVL Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240620-blend-v1-1-72670072ca20@mediatek.com> References: <20240620-blend-v1-0-72670072ca20@mediatek.com> In-Reply-To: <20240620-blend-v1-0-72670072ca20@mediatek.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , AngeloGioacchino Del Regno Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hsiao Chien Sung , CK Hu X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1718818030; l=1454; i=shawn.sung@mediatek.com; s=20240616; h=from:subject:message-id; bh=rtWSUov4PpFb4hd8Tt3oJveJfjjyY029CEOcPjNOX6c=; b=KpJUZeS7WEff+MEihA4MdIy0tY9hjb36UjuTGYAVOGH4tGwjeZ7PvX9T2RQh9WvxFAcPEPxOE 4ztaAk9cHA2AwkAaKKCB54EtlLjv9UUQ3Whapw0cgfuK2rSBXYHc9Bl X-Developer-Key: i=shawn.sung@mediatek.com; a=ed25519; pk=lq1w8BuWDINX+4JHjGHhhbAU5ICP+cL9VCj7wn+cEDA= X-Endpoint-Received: by B4 Relay for shawn.sung@mediatek.com/20240616 with auth_id=172 X-Original-From: Hsiao Chien Sung Reply-To: shawn.sung@mediatek.com From: Hsiao Chien Sung Support "None" alpha blending mode on MediaTek's chips. Reviewed-by: CK Hu Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/medi= atek/mtk_disp_ovl.c index 4b370bc0746d..ad9228fc4dd9 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -439,6 +439,7 @@ void mtk_ovl_layer_config(struct device *dev, unsigned = int idx, unsigned int fmt =3D pending->format; unsigned int offset =3D (pending->y << 16) | pending->x; unsigned int src_size =3D (pending->height << 16) | pending->width; + unsigned int blend_mode =3D state->base.pixel_blend_mode; unsigned int ignore_pixel_alpha =3D 0; unsigned int con; bool is_afbc =3D pending->modifier !=3D DRM_FORMAT_MOD_LINEAR; @@ -468,7 +469,8 @@ void mtk_ovl_layer_config(struct device *dev, unsigned = int idx, * For RGB888 related formats, whether CONST_BLD is enabled or not won't * affect the result. Therefore we use !has_alpha as the condition. */ - if (state->base.fb && !state->base.fb->format->has_alpha) + if ((state->base.fb && !state->base.fb->format->has_alpha) || + blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE) ignore_pixel_alpha =3D OVL_CONST_BLEND; =20 if (pending->rotation & DRM_MODE_REFLECT_Y) { --=20 Git-146) From nobody Thu Sep 19 23:07:23 2024 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 84C52155C8B for ; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; cv=none; b=c9l1As9E4SB+BXEqTFahuPzqsMI/t2ftrWQBx9k/yyIbgu16zPjuhWog6xDo/xK21eFoh4gEYbEbQKQI2ANy/plEpe6N7Ltqyq/jHlq952IbZlejX5bOqEH3rsl5gXPawV3OebrUMqIVGezfRyvjT63u3GLT3G0O5k2sv4O77V8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; c=relaxed/simple; bh=T183k9By1cvXGXNo8Ecq6kS7PKcoWpDlkYqloTYrQ3w=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Gy3B5u8pTQjr1Uc6596YhPXm+vhXAjO2IXyMe6lXkI3z5KNIaBjA6t4j0whtKO9ajq93NHOie9NdBBivqAhO0aazDFoAzsaK2PXc7OzvQkW3QwmNpI7DsOh6XgN4iZwOPFG1pWlMRA+L3Q5HafrxrseIHb5EVBlkUbECs3RkC2A= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ins7qqBt; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ins7qqBt" Received: by smtp.kernel.org (Postfix) with ESMTPS id 446FEC4AF09; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718818032; bh=T183k9By1cvXGXNo8Ecq6kS7PKcoWpDlkYqloTYrQ3w=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=Ins7qqBt/DF7pMus+7lz95yNRa9Nm7P93w9+CbiItBQGGzokNtqy3edzb4jv6fWod /n3sv0Dc8ShZTypIwOrdbkIkWPlxCIr06WbB375XSPoDwcjIuLDxBYjLPBPBXzPVpo HwWLjDSCVRUwQlsphYsA/9QK+uhgJW3Omfwo15Rf9fsu47QzNd/WngzRREi6EPH6AQ KOq/AN4pTiYefvnTD4DNT/TpQawqy7aHHoU3LuWw49S/3/ibh4KfL+PUa+L1gW8pvN hOn/XqMgRklWWbtVcgM0sLYqU2A9XB0eT+8Kw3GuDMocn3qajH77nQf0+Pt4aEj7GY OULTfRadlLwvQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2ED40C2BD05; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) From: Hsiao Chien Sung via B4 Relay Date: Thu, 20 Jun 2024 01:27:07 +0800 Subject: [PATCH 2/5] drm/mediatek: Support "None" blending in Mixer Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240620-blend-v1-2-72670072ca20@mediatek.com> References: <20240620-blend-v1-0-72670072ca20@mediatek.com> In-Reply-To: <20240620-blend-v1-0-72670072ca20@mediatek.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , AngeloGioacchino Del Regno Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hsiao Chien Sung X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1718818030; l=2177; i=shawn.sung@mediatek.com; s=20240616; h=from:subject:message-id; bh=Qozngh9H3WmkloftvXdtunQipRtPsqe5newy6O92Wn0=; b=onITXPFDRbXvFOUQC6q/s0ZYmrTMNr/VTBfUMFTM8PVjvt3LEXLMJVJ1tQvXAYnnrP614Ft2U SW7HRNJeZHSBskThxsR8JQiuhTvHA/Oib/BjprnnG6EPZq3+7D8XJlz X-Developer-Key: i=shawn.sung@mediatek.com; a=ed25519; pk=lq1w8BuWDINX+4JHjGHhhbAU5ICP+cL9VCj7wn+cEDA= X-Endpoint-Received: by B4 Relay for shawn.sung@mediatek.com/20240616 with auth_id=172 X-Original-From: Hsiao Chien Sung Reply-To: shawn.sung@mediatek.com From: Hsiao Chien Sung Support "None" alpha blending mode on MediaTek's chips. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediate= k/mtk_ethdr.c index 36021cb8df62..48b714994492 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -3,6 +3,7 @@ * Copyright (c) 2021 MediaTek Inc. */ =20 +#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 @@ -175,7 +177,13 @@ void mtk_ethdr_layer_config(struct device *dev, unsign= ed int idx, alpha_con |=3D state->base.alpha & MIXER_ALPHA; } =20 - if (state->base.fb && !state->base.fb->format->has_alpha) { + if (state->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE) + alpha_con |=3D PREMULTI_SOURCE; + else + alpha_con |=3D NON_PREMULTI_SOURCE; + + if ((state->base.fb && !state->base.fb->format->has_alpha) || + state->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE) { /* * Mixer doesn't support CONST_BLD mode, * use a trick to make the output equivalent @@ -191,8 +199,7 @@ void mtk_ethdr_layer_config(struct device *dev, unsigne= d int idx, 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, alpha_con, &mixer->cmdq_base, mixer->regs, MIX_L_= SRC_CON(idx)); mtk_ddp_write_mask(cmdq_pkt, BIT(idx), &mixer->cmdq_base, mixer->regs, MI= X_SRC_CON, BIT(idx)); } --=20 Git-146) From nobody Thu Sep 19 23:07:23 2024 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 794F7339A8 for ; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240620-blend-v1-3-72670072ca20@mediatek.com> References: <20240620-blend-v1-0-72670072ca20@mediatek.com> In-Reply-To: <20240620-blend-v1-0-72670072ca20@mediatek.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , AngeloGioacchino Del Regno Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hsiao Chien Sung X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1718818030; l=3803; i=shawn.sung@mediatek.com; s=20240616; h=from:subject:message-id; bh=DavUw+j//lvUyWdRkM3M0/+G2/7MZYehRHdjvtF7ATk=; b=LWKW/d54b/ZZpO3h6Oc9lmFwK+Sj/dMDs9p4n5yrceZyxoQXxu7Vmqo5SS9TRU4A8O/+iB/O8 hkVn5RoFM4qCwDoqN+s79jfBYu++QIQQR9Lz5012yQOSsvofVtspTlb X-Developer-Key: i=shawn.sung@mediatek.com; a=ed25519; pk=lq1w8BuWDINX+4JHjGHhhbAU5ICP+cL9VCj7wn+cEDA= X-Endpoint-Received: by B4 Relay for shawn.sung@mediatek.com/20240616 with auth_id=172 X-Original-From: Hsiao Chien Sung Reply-To: shawn.sung@mediatek.com From: Hsiao Chien Sung Support "Pre-multiplied" alpha blending mode on in OVL. Before this patch, only the "coverage" mode is supported. Signed-off-by: Hsiao Chien Sung Reviewed-by: CK Hu --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 32 +++++++++++++++++++++++++----= --- 1 file changed, 25 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/medi= atek/mtk_disp_ovl.c index ad9228fc4dd9..8e9aae36a289 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -52,8 +52,12 @@ #define GMC_THRESHOLD_HIGH ((1 << GMC_THRESHOLD_BITS) / 4) #define GMC_THRESHOLD_LOW ((1 << GMC_THRESHOLD_BITS) / 8) =20 +#define OVL_CON_CLRFMT_MAN BIT(23) #define OVL_CON_BYTE_SWAP BIT(24) -#define OVL_CON_MTX_YUV_TO_RGB (6 << 16) + +/* OVL_CON_RGB_SWAP works only if OVL_CON_CLRFMT_MAN is enabled */ +#define OVL_CON_RGB_SWAP BIT(25) + #define OVL_CON_CLRFMT_RGB (1 << 12) #define OVL_CON_CLRFMT_ARGB8888 (2 << 12) #define OVL_CON_CLRFMT_RGBA8888 (3 << 12) @@ -61,6 +65,11 @@ #define OVL_CON_CLRFMT_BGRA8888 (OVL_CON_CLRFMT_ARGB8888 | OVL_CON_BYTE_SW= AP) #define OVL_CON_CLRFMT_UYVY (4 << 12) #define OVL_CON_CLRFMT_YUYV (5 << 12) +#define OVL_CON_MTX_YUV_TO_RGB (6 << 16) +#define OVL_CON_CLRFMT_PARGB8888 ((3 << 12) | OVL_CON_CLRFMT_MAN) +#define OVL_CON_CLRFMT_PABGR8888 (OVL_CON_CLRFMT_PARGB8888 | OVL_CON_RGB_S= WAP) +#define OVL_CON_CLRFMT_PBGRA8888 (OVL_CON_CLRFMT_PARGB8888 | OVL_CON_BYTE_= SWAP) +#define OVL_CON_CLRFMT_PRGBA8888 (OVL_CON_CLRFMT_PABGR8888 | OVL_CON_BYTE_= SWAP) #define OVL_CON_CLRFMT_RGB565(ovl) ((ovl)->data->fmt_rgb565_is_0 ? \ 0 : OVL_CON_CLRFMT_RGB) #define OVL_CON_CLRFMT_RGB888(ovl) ((ovl)->data->fmt_rgb565_is_0 ? \ @@ -382,7 +391,8 @@ void mtk_ovl_layer_off(struct device *dev, unsigned int= idx, DISP_REG_OVL_RDMA_CTRL(idx)); } =20 -static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int= fmt) +static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int= fmt, + unsigned int blend_mode) { /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX" * is defined in mediatek HW data sheet. @@ -403,22 +413,30 @@ static unsigned int ovl_fmt_convert(struct mtk_disp_o= vl *ovl, unsigned int fmt) case DRM_FORMAT_RGBA8888: case DRM_FORMAT_RGBX1010102: case DRM_FORMAT_RGBA1010102: - return OVL_CON_CLRFMT_RGBA8888; + return blend_mode =3D=3D DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_RGBA8888 : + OVL_CON_CLRFMT_PRGBA8888; case DRM_FORMAT_BGRX8888: case DRM_FORMAT_BGRA8888: case DRM_FORMAT_BGRX1010102: case DRM_FORMAT_BGRA1010102: - return OVL_CON_CLRFMT_BGRA8888; + return blend_mode =3D=3D DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_BGRA8888 : + OVL_CON_CLRFMT_PBGRA8888; case DRM_FORMAT_XRGB8888: case DRM_FORMAT_ARGB8888: case DRM_FORMAT_XRGB2101010: case DRM_FORMAT_ARGB2101010: - return OVL_CON_CLRFMT_ARGB8888; + return blend_mode =3D=3D DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_ARGB8888 : + OVL_CON_CLRFMT_PARGB8888; case DRM_FORMAT_XBGR8888: case DRM_FORMAT_ABGR8888: case DRM_FORMAT_XBGR2101010: case DRM_FORMAT_ABGR2101010: - return OVL_CON_CLRFMT_ABGR8888; + return blend_mode =3D=3D DRM_MODE_BLEND_COVERAGE ? + OVL_CON_CLRFMT_ABGR8888 : + OVL_CON_CLRFMT_PABGR8888; case DRM_FORMAT_UYVY: return OVL_CON_CLRFMT_UYVY | OVL_CON_MTX_YUV_TO_RGB; case DRM_FORMAT_YUYV: @@ -458,7 +476,7 @@ void mtk_ovl_layer_config(struct device *dev, unsigned = int idx, return; } =20 - con =3D ovl_fmt_convert(ovl, fmt); + con =3D ovl_fmt_convert(ovl, fmt, blend_mode); if (state->base.fb) { con |=3D OVL_CON_AEN; con |=3D state->base.alpha & OVL_CON_ALPHA; --=20 Git-146) From nobody Thu Sep 19 23:07:23 2024 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A29E8155C94 for ; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; cv=none; b=r6wfdYpYWdSQzC59t1mnZbiUPa2XVoPAxNwzPTAKjopXc9n4bYN9+gOV9JTlsSRXcOJvKwt2rj4JoJr3kQwIQxomfdAXVYARfuDbFwMljs/BORgIWOuEmcbm2GIoBbN6Ie26KEudISHoLDt5XcelA95XcaRREhrVP84Y17HBmCQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; c=relaxed/simple; bh=Nao5IZ6gS4htHNI4Bs9XEbYk4qFYkFkjgxxw6oHgg5g=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=bwBqITaUzAXuWNgM5YXP0I+OX6PJ7km0Nk/Qc9rmMdRDJd/ILFjoMYQaci2lQbhf7ZdLLg6kER9WjjZHYuY4+3ibHtYaMSMX9VKTvEuiOefdJcH36VxNpxCRcJm53A0za7RFKfGX+2IdbXQ6JYE6lUjwpjg84eNvpckPaRLeFNw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LL/fLTO2; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LL/fLTO2" Received: by smtp.kernel.org (Postfix) with ESMTPS id 6281EC4AF0B; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718818032; bh=Nao5IZ6gS4htHNI4Bs9XEbYk4qFYkFkjgxxw6oHgg5g=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=LL/fLTO29QX2UaABYk2m4jwVlQpE+Z2f7JkQUuxFbIwkjHAYmrqg3xpJ8y1RfPSk9 OqRw209EfLXmF31R67OKclMXtzlg2tPyEj5DsjcTBCKzC30lgjm9oMCfiQSW6YtX0H q7zwfpenEx5FknB6phOrM0DSyLLMg1o6OCL+SSSRSAY98xcMb9Cx89E3IVhWzTOjqv Gk7GOkP+RcMknB7TDFcJD/KhJPQZEQH1j0vBT7WTaPF0isgJM11RFASC9eT9P3aueG zprewtlOc6fKGK9WLy6HFMcya8z77ypCfAgq6G+lmUgzo7O2DiA/26cR7+WnjDAW/l raBOBxSXKg3Hg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55424C27C53; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) From: Hsiao Chien Sung via B4 Relay Date: Thu, 20 Jun 2024 01:27:09 +0800 Subject: [PATCH 4/5] drm/mediatek: Support "Pre-multiplied" blending in Mixer Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240620-blend-v1-4-72670072ca20@mediatek.com> References: <20240620-blend-v1-0-72670072ca20@mediatek.com> In-Reply-To: <20240620-blend-v1-0-72670072ca20@mediatek.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , AngeloGioacchino Del Regno Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hsiao Chien Sung X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1718818030; l=936; i=shawn.sung@mediatek.com; s=20240616; h=from:subject:message-id; bh=3bQjcoj+V0e9su0dM39EChvPukc7zStbrzEBWWh/Frw=; b=tmGg6oENStsgX78tH+bSHouFVDAfE2H7VBaEIK/gPa76rctdyJWSPy0rnc5TkdUO5Jnni8zSK fbpepZ4ykebB0sXZivN86VVGHO6snBnajwCVvviUw2iYjuEzcz//B+b X-Developer-Key: i=shawn.sung@mediatek.com; a=ed25519; pk=lq1w8BuWDINX+4JHjGHhhbAU5ICP+cL9VCj7wn+cEDA= X-Endpoint-Received: by B4 Relay for shawn.sung@mediatek.com/20240616 with auth_id=172 X-Original-From: Hsiao Chien Sung Reply-To: shawn.sung@mediatek.com From: Hsiao Chien Sung Support "Pre-multiplied" alpha blending mode in Mixer. Before this patch, only the coverage mode is supported. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_ethdr.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mediatek/mtk_ethdr.c b/drivers/gpu/drm/mediate= k/mtk_ethdr.c index 48b714994492..bc43d0d760c1 100644 --- a/drivers/gpu/drm/mediatek/mtk_ethdr.c +++ b/drivers/gpu/drm/mediatek/mtk_ethdr.c @@ -177,7 +177,8 @@ void mtk_ethdr_layer_config(struct device *dev, unsigne= d int idx, alpha_con |=3D state->base.alpha & MIXER_ALPHA; } =20 - if (state->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE) + if (state->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PIXEL_NONE || + state->base.pixel_blend_mode =3D=3D DRM_MODE_BLEND_PREMULTI) alpha_con |=3D PREMULTI_SOURCE; else alpha_con |=3D NON_PREMULTI_SOURCE; --=20 Git-146) From nobody Thu Sep 19 23:07:23 2024 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 A33ED156237 for ; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; cv=none; b=cObTmCDUotS/necfM9bPgWjvuhACJCbGAWUxqjYVO6Y+eQvKguH5Il7zce5uweihaHvGKoR5R5ZvPJGQGocdMxh8WVosX2U2cKWIfrS8dGUzT6eJ6AWQY9RUgSiFi4pTHO4AALwtcZxHP0VtxziseYbcP0Y/lAO3oHqCfJ6MYdo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718818032; c=relaxed/simple; bh=jv4d4Oqc5NFEU23JiIU4PcDVItnFp27R9cyRY1Vnzh0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Hoze8hw37iHBMDhEtQLAs2U8TY87vtq30bMEoPmjoOauQoxZmwyFJRtXyFrySG3JKVrwWKO/2vw/nDNdSZ8aUMljLaMkOdWL0WtGDcMPrVDErpr3hXNIlSANDhy6/+rsltDqehFob4rrsUfpbBY4WPLp2GSOkKoyCxjMzW/c+BE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dVxn9UF3; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dVxn9UF3" Received: by smtp.kernel.org (Postfix) with ESMTPS id 6BBFFC4AF0D; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718818032; bh=jv4d4Oqc5NFEU23JiIU4PcDVItnFp27R9cyRY1Vnzh0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=dVxn9UF3ZCDJ7hmqWCGoH64f9+8D3FG6Hn7aJSlGePexeuo+7vGEHn/yh+tyQ7UlE if3dreFQ9aR5ax5K4LntNvbyYJ6tUG8Kf5xZnirTOx6bTlR5vhgqE71x+Vd9bFHdDk l4aWR6gKRIGzd0Rzv449PZnQxy8iNCBqTbw9mvamy1Zv3cs7yntmmVLVkpjGpFBFB1 qosAh52qS7MjEIeg91mOL0HuceLUw8xYw4ILF21/ZVaAewoZBfS+JcK9lEmQtNFAz3 1q78fV7qhCSoC/oRg2raFONuMkXfSYqzih8PcsNz8c8nzJtxM21D9cBrpkBP3ihx3k sU2yo7tzpJ/VA== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 62F3EC2BD05; Wed, 19 Jun 2024 17:27:12 +0000 (UTC) From: Hsiao Chien Sung via B4 Relay Date: Thu, 20 Jun 2024 01:27:10 +0800 Subject: [PATCH 5/5] drm/mediatek: Support alpha blending in display driver Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240620-blend-v1-5-72670072ca20@mediatek.com> References: <20240620-blend-v1-0-72670072ca20@mediatek.com> In-Reply-To: <20240620-blend-v1-0-72670072ca20@mediatek.com> To: Chun-Kuang Hu , Philipp Zabel , David Airlie , Daniel Vetter , Matthias Brugger , AngeloGioacchino Del Regno Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Hsiao Chien Sung , CK Hu X-Mailer: b4 0.14.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1718818030; l=2212; i=shawn.sung@mediatek.com; s=20240616; h=from:subject:message-id; bh=ZXEEgZdYr6sFLsFE3tObHfLlq5Jjp3gd57RSpJwiaWk=; b=cpty0i5L97fiTXnZ0dYhFyfpl2UpFSYmEhpFLKHWC0s/PCJdwNQEYos4jPVBR/lcE9LJuActy ELMxdETYKawBFMZNbBHIXqs2vYwFTAh2OPJP9YZv98dfNiHvIeaE98j X-Developer-Key: i=shawn.sung@mediatek.com; a=ed25519; pk=lq1w8BuWDINX+4JHjGHhhbAU5ICP+cL9VCj7wn+cEDA= X-Endpoint-Received: by B4 Relay for shawn.sung@mediatek.com/20240616 with auth_id=172 X-Original-From: Hsiao Chien Sung Reply-To: shawn.sung@mediatek.com From: Hsiao Chien Sung Support "Pre-multiplied" and "None" blend mode on MediaTek's chips by adding correct blend mode property when the planes init. Before this patch, only the "Coverage" mode (default) is supported. For more information, there are three pixel blend modes in DRM driver: "None", "Pre-multiplied", and "Coverage". To understand the difference between these modes, let's take a look at the following two approaches to do alpha blending: 1. Straight: dst.RGB =3D src.RGB * src.A + dst.RGB * (1 - src.A) This is straightforward and easy to understand, when the source layer is compositing with the destination layer, it's alpha will affect the result. This is also known as "post-multiplied", or "Coverage" mode. 2. Pre-multiplied: dst.RGB =3D src.RGB + dst.RGB * (1 - src.A) Since the source RGB have already multiplied its alpha, only destination RGB need to multiply it. This is the "Pre-multiplied" mode in DRM. For the "None" blend mode in DRM, it means the pixel alpha is ignored when compositing the layers, only the constant alpha for the composited layer will take effects. Reviewed-by: CK Hu Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_plane.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_plane.c b/drivers/gpu/drm/mediate= k/mtk_plane.c index 1723d4333f37..5bf757a3ef20 100644 --- a/drivers/gpu/drm/mediatek/mtk_plane.c +++ b/drivers/gpu/drm/mediatek/mtk_plane.c @@ -346,6 +346,17 @@ int mtk_plane_init(struct drm_device *dev, struct drm_= plane *plane, DRM_INFO("Create rotation property failed\n"); } =20 + err =3D drm_plane_create_alpha_property(plane); + if (err) + DRM_ERROR("failed to create property: alpha\n"); + + err =3D drm_plane_create_blend_mode_property(plane, + BIT(DRM_MODE_BLEND_PREMULTI) | + BIT(DRM_MODE_BLEND_COVERAGE) | + BIT(DRM_MODE_BLEND_PIXEL_NONE)); + if (err) + DRM_ERROR("failed to create property: blend_mode\n"); + drm_plane_helper_add(plane, &mtk_plane_helper_funcs); =20 return 0; --=20 Git-146)