From nobody Sun Nov 10 09:02:00 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 6A50CC38147 for ; Tue, 12 Dec 2023 12:20:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346717AbjLLMUt (ORCPT ); Tue, 12 Dec 2023 07:20:49 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55912 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230234AbjLLMUL (ORCPT ); Tue, 12 Dec 2023 07:20:11 -0500 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2EA6FFE; Tue, 12 Dec 2023 04:20:12 -0800 (PST) X-UUID: c6b7078698e811eeba30773df0976c77-20231212 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=ieYGvdKX/O8oWqSbJuyH2sRjtlQXogz01qgELDwpc6A=; b=Pwk4570kvF2ndYzjojfqUVXjBqsGYeBBsAOFqbMTUIlO8QQJOMAgE+vlqoqew7NSEmbpIAur7X8FvJy5VHXr3+YrLWvrZNPTj5Obaj0CrcguqffUypyUxmaBfV8kt0bzruAQl0/aLjjLNYqXtLYun2v7dtRdwTkpAC1kZLy0V5g=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.35,REQID:c78da633-ee65-4734-b21a-87ad4ca76620,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:4f3b1c61-c89d-4129-91cb-8ebfae4653fc,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: c6b7078698e811eeba30773df0976c77-20231212 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 794778524; Tue, 12 Dec 2023 20:20:02 +0800 Received: from mtkmbs13n2.mediatek.inc (172.21.101.108) by mtkmbs13n1.mediatek.inc (172.21.101.193) 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 09/17] drm/mediatek: Support CSC in OVL Date: Tue, 12 Dec 2023 20:19:49 +0800 Message-ID: <20231212121957.19231-10-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 Color Transform Control (CSC) in Overlay to do Y2R or R2R conversion. Signed-off-by: Hsiao Chien Sung --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 121 +++++++++++++++++++++++- 1 file changed, 118 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/medi= atek/mtk_disp_ovl.c index 66074c2d917c..7e217142d0c4 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -31,6 +31,7 @@ #define OVL_LAYER_SMI_ID_EN BIT(0) #define OVL_BGCLR_SEL_IN BIT(2) #define OVL_LAYER_AFBC_EN(n) BIT(4+n) +#define OVL_OUTPUT_CLAMP BIT(26) #define DISP_REG_OVL_ROI_BGCLR 0x0028 #define DISP_REG_OVL_SRC_CON 0x002c #define DISP_REG_OVL_CON(n) (0x0030 + 0x20 * (n)) @@ -44,6 +45,23 @@ #define DISP_REG_OVL_RDMA_GMC(n) (0x00c8 + 0x20 * (n)) #define DISP_REG_OVL_ADDR_MT2701 0x0040 #define DISP_REG_OVL_CLRFMT_EXT 0x02D0 +#define DISP_REG_OVL_CLRFMT_EXT1 0x02D8 +#define OVL_CLRFMT_EXT1_CSC_EN(n) (1 << (((n) * 4) + 1)) +#define DISP_REG_OVL_Y2R_PARA_R0(n) (0x0134 + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_RMY (GENMASK(14, 0)) +#define DISP_REG_OVL_Y2R_PARA_G0(n) (0x013c + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_GMU (GENMASK(30, 16)) +#define DISP_REG_OVL_Y2R_PARA_B1(n) (0x0148 + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_BMV (GENMASK(14, 0)) +#define DISP_REG_OVL_Y2R_PARA_YUV_A_0(n) (0x014c + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_YA (GENMASK(10, 0)) +#define OVL_Y2R_PARA_C_CF_UA (GENMASK(26, 16)) +#define DISP_REG_OVL_Y2R_PARA_YUV_A_1(n) (0x0150 + 0x28 * (n)) +#define OVL_Y2R_PARA_C_CF_VA (GENMASK(10, 0)) +#define DISP_REG_OVL_Y2R_PRE_ADD2(n) (0x0154 + 0x28 * (n)) +#define DISP_REG_OVL_R2R_R0(n) (0x0500 + 0x40 * (n)) +#define DISP_REG_OVL_R2R_G1(n) (0x0510 + 0x40 * (n)) +#define DISP_REG_OVL_R2R_B2(n) (0x0520 + 0x40 * (n)) #define DISP_REG_OVL_ADDR_MT8173 0x0f40 #define DISP_REG_OVL_ADDR(ovl, n) ((ovl)->data->addr + 0x20 * (n)) #define DISP_REG_OVL_HDR_ADDR(ovl, n) ((ovl)->data->addr + 0x20 * (n) + 0= x04) @@ -56,6 +74,8 @@ #define OVL_CON_CLRFMT_MAN BIT(23) #define OVL_CON_BYTE_SWAP BIT(24) #define OVL_CON_RGB_SWAP BIT(25) +#define OVL_CON_MTX_AUTO_DIS BIT(26) +#define OVL_CON_MTX_EN BIT(27) #define OVL_CON_CLRFMT_RGB (1 << 12) #define OVL_CON_CLRFMT_RGBA8888 (2 << 12) #define OVL_CON_CLRFMT_ARGB8888 (3 << 12) @@ -63,6 +83,7 @@ #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_MTX_PROGRAMMABLE (8 << 16) #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 ? \ @@ -76,6 +97,22 @@ #define OVL_CON_VIRT_FLIP BIT(9) #define OVL_CON_HORZ_FLIP BIT(10) =20 +static inline bool is_10bit_rgb(u32 fmt) +{ + switch (fmt) { + case DRM_FORMAT_XRGB2101010: + case DRM_FORMAT_ARGB2101010: + case DRM_FORMAT_RGBX1010102: + case DRM_FORMAT_RGBA1010102: + case DRM_FORMAT_XBGR2101010: + case DRM_FORMAT_ABGR2101010: + case DRM_FORMAT_BGRX1010102: + case DRM_FORMAT_BGRA1010102: + return true; + } + return false; +} + static const u32 mt8173_formats[] =3D { DRM_FORMAT_XRGB8888, DRM_FORMAT_ARGB8888, @@ -217,6 +254,14 @@ void mtk_ovl_start(struct device *dev) if (ovl->data->smi_id_en) reg |=3D OVL_LAYER_SMI_ID_EN; =20 + /* + * When doing Y2R conversion, it's common to get an output + * that is larger than 10 bits (negative numbers). + * Enable this bit to clamp the output to 10 bits per channel + * (should always be enabled) + */ + reg |=3D OVL_OUTPUT_CLAMP; + writel_relaxed(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON); writel_relaxed(0x1, ovl->regs + DISP_REG_OVL_EN); } @@ -256,9 +301,7 @@ static void mtk_ovl_set_bit_depth(struct device *dev, i= nt idx, u32 format, reg =3D readl(ovl->regs + DISP_REG_OVL_CLRFMT_EXT); reg &=3D ~OVL_CON_CLRFMT_BIT_DEPTH_MASK(idx); =20 - if (format =3D=3D DRM_FORMAT_RGBA1010102 || - format =3D=3D DRM_FORMAT_BGRA1010102 || - format =3D=3D DRM_FORMAT_ARGB2101010) + if (is_10bit_rgb(format)) bit_depth =3D OVL_CON_CLRFMT_10_BIT; =20 reg |=3D OVL_CON_CLRFMT_BIT_DEPTH(bit_depth, idx); @@ -458,6 +501,78 @@ void mtk_ovl_layer_config(struct device *dev, unsigned= int idx, (state->base.fb && !state->base.fb->format->has_alpha)) ignore_pixel_alpha =3D OVL_CONST_BLEND; =20 + /* need to do Y2R and R2R to reduce 10bit data to 8bit for CRC calculatio= n */ + if (ovl->data->supports_clrfmt_ext) { + u32 y2r_coef =3D 0, y2r_offset =3D 0, r2r_coef =3D 0, csc_en =3D 0; + + if (is_10bit_rgb(fmt)) { + con |=3D OVL_CON_MTX_AUTO_DIS | OVL_CON_MTX_EN | OVL_CON_MTX_PROGRAMMAB= LE; + + /* + * Y2R coef setting + * bit 13 is 2^1, bit 12 is 2^0, bit 11 is 2^-1, + * bit 10 is 2^-2 =3D 0.25 + */ + y2r_coef =3D BIT(10); + + /* -1 in 10bit */ + y2r_offset =3D GENMASK(10, 0) - 1; + + /* + * R2R coef setting + * bit 19 is 2^1, bit 18 is 2^0, bit 17 is 2^-1, + * bit 20 is 2^2 =3D 4 + */ + r2r_coef =3D BIT(20); + + /* CSC_EN is for R2R */ + csc_en =3D OVL_CLRFMT_EXT1_CSC_EN(idx); + + /* + * 1. YUV input data - 1 and shift right for 2 bits to remove it + * [R'] [0.25 0 0] [Y in - 1] + * [G'] =3D [ 0 0.25 0] * [U in - 1] + * [B'] [ 0 0 0.25] [V in - 1] + * + * 2. shift left for 2 bit letting the last 2 bits become 0 + * [R out] [ 4 0 0] [R'] + * [G out] =3D [ 0 4 0] * [G'] + * [B out] [ 0 0 4] [B'] + */ + } + + mtk_ddp_write_mask(cmdq_pkt, y2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_R0(idx), + OVL_Y2R_PARA_C_CF_RMY); + mtk_ddp_write_mask(cmdq_pkt, (y2r_coef << 16), + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_G0(idx), + OVL_Y2R_PARA_C_CF_GMU); + mtk_ddp_write_mask(cmdq_pkt, y2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_B1(idx), + OVL_Y2R_PARA_C_CF_BMV); + + mtk_ddp_write_mask(cmdq_pkt, y2r_offset, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_YUV_A_0(idx), + OVL_Y2R_PARA_C_CF_YA); + mtk_ddp_write_mask(cmdq_pkt, (y2r_offset << 16), + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_YUV_A_0(idx), + OVL_Y2R_PARA_C_CF_UA); + mtk_ddp_write_mask(cmdq_pkt, y2r_offset, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_Y2R_PARA_YUV_A_1(idx), + OVL_Y2R_PARA_C_CF_VA); + + mtk_ddp_write_relaxed(cmdq_pkt, r2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_R2R_R0(idx)); + mtk_ddp_write_relaxed(cmdq_pkt, r2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_R2R_G1(idx)); + mtk_ddp_write_relaxed(cmdq_pkt, r2r_coef, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_R2R_B2(idx)); + + mtk_ddp_write_mask(cmdq_pkt, csc_en, + &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_CLRFMT_EXT1, + OVL_CLRFMT_EXT1_CSC_EN(idx)); + } + if (pending->rotation & DRM_MODE_REFLECT_Y) { con |=3D OVL_CON_VIRT_FLIP; addr +=3D (pending->height - 1) * pending->pitch; --=20 2.18.0