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Thu, 17 Oct 2024 01:21:22 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA02.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 49H1LKRv022801 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 17 Oct 2024 01:21:20 GMT Received: from jesszhan-linux.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 16 Oct 2024 18:21:20 -0700 From: Jessica Zhang Date: Wed, 16 Oct 2024 18:21:23 -0700 Subject: [PATCH v3 17/23] drm/msm/dpu: Configure CWB in writeback encoder 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: <20241016-concurrent-wb-v3-17-a33cf9b93835@quicinc.com> References: <20241016-concurrent-wb-v3-0-a33cf9b93835@quicinc.com> In-Reply-To: <20241016-concurrent-wb-v3-0-a33cf9b93835@quicinc.com> To: Rob Clark , Dmitry Baryshkov , , Sean Paul , Marijn Suijten , "David Airlie" , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Simona Vetter , Simona Vetter CC: , , , , , Rob Clark , =?utf-8?q?Ville_Syrj=C3=A4l=C3=A4?= , "Jessica Zhang" X-Mailer: b4 0.15-dev-2a633 X-Developer-Signature: v=1; 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=20 unsigned int dsc_mask; + unsigned int cwb_mask; =20 bool intfs_swapped; =20 @@ -1063,6 +1066,7 @@ static void dpu_encoder_virt_atomic_mode_set(struct d= rm_encoder *drm_enc, int num_cwb =3D 0; bool is_cwb_encoder; unsigned int dsc_mask =3D 0; + unsigned int cwb_mask =3D 0; int i; =20 if (!drm_enc) { @@ -1103,8 +1107,12 @@ static void dpu_encoder_virt_atomic_mode_set(struct = drm_encoder *drm_enc, ARRAY_SIZE(hw_pp)); } =20 - for (i =3D 0; i < num_cwb; i++) + for (i =3D 0; i < num_cwb; i++) { dpu_enc->hw_cwb[i] =3D to_dpu_hw_cwb(hw_cwb[i]); + cwb_mask |=3D BIT(dpu_enc->hw_cwb[i]->idx - CWB_0); + } + + dpu_enc->cwb_mask =3D cwb_mask; =20 dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, drm_enc->crtc, DPU_HW_BLK_CTL, hw_ctl, ARRAY_SIZE(hw_ctl)); @@ -2071,6 +2079,9 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encod= er_phys *phys_enc) } } =20 + if (dpu_enc->cwb_mask) + dpu_encoder_helper_phys_setup_cwb(phys_enc, false); + /* reset the merge 3D HW block */ if (phys_enc->hw_pp && phys_enc->hw_pp->merge_3d) { phys_enc->hw_pp->merge_3d->ops.setup_3d_mode(phys_enc->hw_pp->merge_3d, @@ -2114,6 +2125,56 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_enco= der_phys *phys_enc) ctl->ops.clear_pending_flush(ctl); } =20 +void dpu_encoder_helper_phys_setup_cwb(struct dpu_encoder_phys *phys_enc, + bool enable) +{ + struct dpu_encoder_virt *dpu_enc =3D to_dpu_encoder_virt(phys_enc->parent= ); + struct dpu_hw_cwb *hw_cwb; + struct dpu_hw_cwb_setup_cfg cwb_cfg; + + struct dpu_kms *dpu_kms; + struct dpu_global_state *global_state; + struct dpu_hw_blk *rt_pp_list[MAX_CHANNELS_PER_ENC]; + int num_pp; + + if (!phys_enc->hw_wb) + return; + + dpu_kms =3D phys_enc->dpu_kms; + global_state =3D dpu_kms_get_existing_global_state(dpu_kms); + num_pp =3D dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, + phys_enc->parent->crtc, + DPU_HW_BLK_PINGPONG, rt_pp_list, + ARRAY_SIZE(rt_pp_list)); + + if (num_pp =3D=3D 0 || num_pp > MAX_CHANNELS_PER_ENC) { + DPU_DEBUG_ENC(dpu_enc, "invalid num_pp %d\n", num_pp); + return; + } + + /* + * The CWB mux supports using LM or DSPP as tap points. For now, + * always use LM tap point + */ + cwb_cfg.input =3D INPUT_MODE_LM_OUT; + + for (int i =3D 0; i < MAX_CHANNELS_PER_ENC; i++) { + hw_cwb =3D dpu_enc->hw_cwb[i]; + if (!hw_cwb) + continue; + + if (enable) { + struct dpu_hw_pingpong *hw_pp =3D + to_dpu_hw_pingpong(rt_pp_list[i]); + cwb_cfg.pp_idx =3D hw_pp->idx; + } else { + cwb_cfg.pp_idx =3D PINGPONG_NONE; + } + + hw_cwb->ops.config_cwb(hw_cwb, &cwb_cfg); + } +} + void dpu_encoder_helper_phys_setup_cdm(struct dpu_encoder_phys *phys_enc, const struct msm_format *dpu_fmt, u32 output_type) @@ -2557,6 +2618,18 @@ enum dpu_intf_mode dpu_encoder_get_intf_mode(struct = drm_encoder *encoder) return INTF_MODE_NONE; } =20 +/** + * dpu_encoder_helper_get_cwb_mask - get CWB blocks mask for the DPU encod= er + * @phys_enc: Pointer to physical encoder structure + */ +unsigned int dpu_encoder_helper_get_cwb_mask(struct dpu_encoder_phys *phys= _enc) +{ + struct drm_encoder *encoder =3D phys_enc->parent; + struct dpu_encoder_virt *dpu_enc =3D to_dpu_encoder_virt(encoder); + + return dpu_enc->cwb_mask; +} + unsigned int dpu_encoder_helper_get_dsc(struct dpu_encoder_phys *phys_enc) { struct drm_encoder *encoder =3D phys_enc->parent; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu= /drm/msm/disp/dpu1/dpu_encoder_phys.h index e77ebe3a68da99cc51638f225fe4b76540f9656f..6d7b797a448ce1852195d676e26= 955316225674d 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* - * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights res= erved. * Copyright (c) 2015-2018 The Linux Foundation. All rights reserved. */ =20 @@ -331,6 +331,8 @@ static inline enum dpu_3d_blend_mode dpu_encoder_helper= _get_3d_blend_mode( return BLEND_3D_NONE; } =20 +unsigned int dpu_encoder_helper_get_cwb_mask(struct dpu_encoder_phys *phys= _enc); + /** * dpu_encoder_helper_get_dsc - get DSC blocks mask for the DPU encoder * This helper function is used by physical encoder to get DSC blocks ma= sk @@ -400,6 +402,14 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder= _phys *phys_enc, */ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc); =20 +/** + * dpu_encoder_helper_phys_setup_cwb - helper to configure CWB muxes + * @phys_enc: Pointer to physical encoder structure + * @enable: Enable CWB mux + */ +void dpu_encoder_helper_phys_setup_cwb(struct dpu_encoder_phys *phys_enc, + bool enable); + /** * dpu_encoder_helper_phys_setup_cdm - setup chroma down sampling block * @phys_enc: Pointer to physical encoder diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c b/drivers/= gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c index 882c717859cec6dfc4b646200e68a748a5294ac9..e88c4d91041f237b17d18c7cd59= 8f7307258e335 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* - * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights res= erved. */ =20 #define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__ @@ -342,6 +342,8 @@ static void dpu_encoder_phys_wb_setup( =20 dpu_encoder_helper_phys_setup_cdm(phys_enc, dpu_fmt, CDM_CDWN_OUTPUT_WB); =20 + dpu_encoder_helper_phys_setup_cwb(phys_enc, true); + dpu_encoder_phys_wb_setup_ctl(phys_enc); } =20 --=20 2.34.1