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Tue, 17 Dec 2024 00:43:31 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; Mon, 16 Dec 2024 16:43:30 -0800 From: Jessica Zhang Date: Mon, 16 Dec 2024 16:43:31 -0800 Subject: [PATCH v4 20/25] drm/msm/dpu: Support CWB in dpu_hw_ctl Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <20241216-concurrent-wb-v4-20-fe220297a7f0@quicinc.com> References: <20241216-concurrent-wb-v4-0-fe220297a7f0@quicinc.com> In-Reply-To: <20241216-concurrent-wb-v4-0-fe220297a7f0@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?b?VmlsbGUgU3lyasOkbMOk?= , "Jessica Zhang" X-Mailer: b4 0.15-dev-355e8 X-Developer-Signature: v=1; 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Add support for configuring them within the dpu_hw_ctl layer. Reviewed-by: Dmitry Baryshkov Signed-off-by: Jessica Zhang --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 13 ++++++++++ .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys_wb.c | 1 + drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 30 +++++++++++++++++++++- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 15 ++++++++++- 4 files changed, 57 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 066b96601a92945defe778ea40eb9d70783a0ae1..0af813aae626853a7f75f4994999cf1ca137d342 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -2263,6 +2263,7 @@ void dpu_encoder_helper_phys_cleanup(struct dpu_encoder_phys *phys_enc) intf_cfg.stream_sel = 0; /* Don't care value for video mode */ intf_cfg.mode_3d = dpu_encoder_helper_get_3d_blend_mode(phys_enc); intf_cfg.dsc = dpu_encoder_helper_get_dsc(phys_enc); + intf_cfg.cwb = dpu_enc->cwb_mask; if (phys_enc->hw_intf) intf_cfg.intf = phys_enc->hw_intf->idx; @@ -2285,6 +2286,7 @@ void dpu_encoder_helper_phys_setup_cwb(struct dpu_encoder_phys *phys_enc, { struct dpu_encoder_virt *dpu_enc = to_dpu_encoder_virt(phys_enc->parent); struct dpu_hw_cwb *hw_cwb; + struct dpu_hw_ctl *hw_ctl; struct dpu_hw_cwb_setup_cfg cwb_cfg; struct dpu_kms *dpu_kms; @@ -2295,6 +2297,14 @@ void dpu_encoder_helper_phys_setup_cwb(struct dpu_encoder_phys *phys_enc, if (!phys_enc->hw_wb) return; + hw_ctl = phys_enc->hw_ctl; + + if (!phys_enc->hw_ctl) { + DPU_DEBUG("[wb:%d] no ctl assigned\n", + phys_enc->hw_wb->idx - WB_0); + return; + } + dpu_kms = phys_enc->dpu_kms; global_state = dpu_kms_get_existing_global_state(dpu_kms); num_pp = dpu_rm_get_assigned_resources(&dpu_kms->rm, global_state, @@ -2327,6 +2337,9 @@ void dpu_encoder_helper_phys_setup_cwb(struct dpu_encoder_phys *phys_enc, } hw_cwb->ops.config_cwb(hw_cwb, &cwb_cfg); + + if (hw_ctl->ops.update_pending_flush_cwb) + hw_ctl->ops.update_pending_flush_cwb(hw_ctl, hw_cwb->idx); } } 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 f2cbc9335e54e826c2ebd00b3a809af41eed95a4..648e6b3aab84957ca0401cbbc25889f0bd64b71a 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 @@ -236,6 +236,7 @@ static void dpu_encoder_phys_wb_setup_ctl(struct dpu_encoder_phys *phys_enc) intf_cfg.intf = DPU_NONE; intf_cfg.wb = hw_wb->idx; + intf_cfg.cwb = dpu_encoder_helper_get_cwb_mask(phys_enc); if (mode_3d && hw_pp && hw_pp->merge_3d) intf_cfg.merge_3d = hw_pp->merge_3d->idx; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c index 4893f10d6a5832521808c0f4d8b231c356dbdc41..411a7cf088eb72f856940c09b0af9e108ccade4b 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c @@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. - * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. */ #include @@ -31,12 +31,14 @@ #define CTL_MERGE_3D_ACTIVE 0x0E4 #define CTL_DSC_ACTIVE 0x0E8 #define CTL_WB_ACTIVE 0x0EC +#define CTL_CWB_ACTIVE 0x0F0 #define CTL_INTF_ACTIVE 0x0F4 #define CTL_CDM_ACTIVE 0x0F8 #define CTL_FETCH_PIPE_ACTIVE 0x0FC #define CTL_MERGE_3D_FLUSH 0x100 #define CTL_DSC_FLUSH 0x104 #define CTL_WB_FLUSH 0x108 +#define CTL_CWB_FLUSH 0x10C #define CTL_INTF_FLUSH 0x110 #define CTL_CDM_FLUSH 0x114 #define CTL_PERIPH_FLUSH 0x128 @@ -53,6 +55,7 @@ #define PERIPH_IDX 30 #define INTF_IDX 31 #define WB_IDX 16 +#define CWB_IDX 28 #define DSPP_IDX 29 /* From DPU hw rev 7.x.x */ #define CTL_INVALID_BIT 0xffff #define CTL_DEFAULT_GROUP_ID 0xf @@ -110,6 +113,7 @@ static inline void dpu_hw_ctl_clear_pending_flush(struct dpu_hw_ctl *ctx) ctx->pending_flush_mask = 0x0; ctx->pending_intf_flush_mask = 0; ctx->pending_wb_flush_mask = 0; + ctx->pending_cwb_flush_mask = 0; ctx->pending_merge_3d_flush_mask = 0; ctx->pending_dsc_flush_mask = 0; ctx->pending_cdm_flush_mask = 0; @@ -144,6 +148,9 @@ static inline void dpu_hw_ctl_trigger_flush_v1(struct dpu_hw_ctl *ctx) if (ctx->pending_flush_mask & BIT(WB_IDX)) DPU_REG_WRITE(&ctx->hw, CTL_WB_FLUSH, ctx->pending_wb_flush_mask); + if (ctx->pending_flush_mask & BIT(CWB_IDX)) + DPU_REG_WRITE(&ctx->hw, CTL_CWB_FLUSH, + ctx->pending_cwb_flush_mask); if (ctx->pending_flush_mask & BIT(DSPP_IDX)) for (dspp = DSPP_0; dspp < DSPP_MAX; dspp++) { @@ -310,6 +317,13 @@ static void dpu_hw_ctl_update_pending_flush_wb_v1(struct dpu_hw_ctl *ctx, ctx->pending_flush_mask |= BIT(WB_IDX); } +static void dpu_hw_ctl_update_pending_flush_cwb_v1(struct dpu_hw_ctl *ctx, + enum dpu_cwb cwb) +{ + ctx->pending_cwb_flush_mask |= BIT(cwb - CWB_0); + ctx->pending_flush_mask |= BIT(CWB_IDX); +} + static void dpu_hw_ctl_update_pending_flush_intf_v1(struct dpu_hw_ctl *ctx, enum dpu_intf intf) { @@ -547,6 +561,7 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx, u32 intf_active = 0; u32 dsc_active = 0; u32 wb_active = 0; + u32 cwb_active = 0; u32 mode_sel = 0; /* CTL_TOP[31:28] carries group_id to collate CTL paths @@ -561,6 +576,7 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx, intf_active = DPU_REG_READ(c, CTL_INTF_ACTIVE); wb_active = DPU_REG_READ(c, CTL_WB_ACTIVE); + cwb_active = DPU_REG_READ(c, CTL_CWB_ACTIVE); dsc_active = DPU_REG_READ(c, CTL_DSC_ACTIVE); if (cfg->intf) @@ -569,12 +585,16 @@ static void dpu_hw_ctl_intf_cfg_v1(struct dpu_hw_ctl *ctx, if (cfg->wb) wb_active |= BIT(cfg->wb - WB_0); + if (cfg->cwb) + cwb_active |= cfg->cwb; + if (cfg->dsc) dsc_active |= cfg->dsc; DPU_REG_WRITE(c, CTL_TOP, mode_sel); DPU_REG_WRITE(c, CTL_INTF_ACTIVE, intf_active); DPU_REG_WRITE(c, CTL_WB_ACTIVE, wb_active); + DPU_REG_WRITE(c, CTL_CWB_ACTIVE, cwb_active); DPU_REG_WRITE(c, CTL_DSC_ACTIVE, dsc_active); if (cfg->merge_3d) @@ -624,6 +644,7 @@ static void dpu_hw_ctl_reset_intf_cfg_v1(struct dpu_hw_ctl *ctx, struct dpu_hw_blk_reg_map *c = &ctx->hw; u32 intf_active = 0; u32 wb_active = 0; + u32 cwb_active = 0; u32 merge3d_active = 0; u32 dsc_active; u32 cdm_active; @@ -651,6 +672,12 @@ static void dpu_hw_ctl_reset_intf_cfg_v1(struct dpu_hw_ctl *ctx, DPU_REG_WRITE(c, CTL_INTF_ACTIVE, intf_active); } + if (cfg->cwb) { + cwb_active = DPU_REG_READ(c, CTL_CWB_ACTIVE); + cwb_active &= ~cfg->cwb; + DPU_REG_WRITE(c, CTL_CWB_ACTIVE, cwb_active); + } + if (cfg->wb) { wb_active = DPU_REG_READ(c, CTL_WB_ACTIVE); wb_active &= ~BIT(cfg->wb - WB_0); @@ -703,6 +730,7 @@ static void _setup_ctl_ops(struct dpu_hw_ctl_ops *ops, ops->update_pending_flush_merge_3d = dpu_hw_ctl_update_pending_flush_merge_3d_v1; ops->update_pending_flush_wb = dpu_hw_ctl_update_pending_flush_wb_v1; + ops->update_pending_flush_cwb = dpu_hw_ctl_update_pending_flush_cwb_v1; ops->update_pending_flush_dsc = dpu_hw_ctl_update_pending_flush_dsc_v1; ops->update_pending_flush_cdm = dpu_hw_ctl_update_pending_flush_cdm_v1; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h index 85c6c835cc8780e6cb66f3a262d9897c91962935..080a9550a0cc6530b4115165dd737857b6213d15 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. - * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. */ #ifndef _DPU_HW_CTL_H @@ -42,6 +42,7 @@ struct dpu_hw_stage_cfg { * @cdm: CDM block used * @stream_sel: Stream selection for multi-stream interfaces * @dsc: DSC BIT masks used + * @cwb: CWB BIT masks used */ struct dpu_hw_intf_cfg { enum dpu_intf intf; @@ -51,6 +52,7 @@ struct dpu_hw_intf_cfg { enum dpu_ctl_mode_sel intf_mode_sel; enum dpu_cdm cdm; int stream_sel; + unsigned int cwb; unsigned int dsc; }; @@ -114,6 +116,15 @@ struct dpu_hw_ctl_ops { void (*update_pending_flush_wb)(struct dpu_hw_ctl *ctx, enum dpu_wb blk); + /** + * OR in the given flushbits to the cached pending_(cwb_)flush_mask + * No effect on hardware + * @ctx : ctl path ctx pointer + * @blk : concurrent writeback block index + */ + void (*update_pending_flush_cwb)(struct dpu_hw_ctl *ctx, + enum dpu_cwb blk); + /** * OR in the given flushbits to the cached pending_(intf_)flush_mask * No effect on hardware @@ -258,6 +269,7 @@ struct dpu_hw_ctl_ops { * @pending_flush_mask: storage for pending ctl_flush managed via ops * @pending_intf_flush_mask: pending INTF flush * @pending_wb_flush_mask: pending WB flush + * @pending_cwb_flush_mask: pending CWB flush * @pending_dsc_flush_mask: pending DSC flush * @pending_cdm_flush_mask: pending CDM flush * @ops: operation list @@ -274,6 +286,7 @@ struct dpu_hw_ctl { u32 pending_flush_mask; u32 pending_intf_flush_mask; u32 pending_wb_flush_mask; + u32 pending_cwb_flush_mask; u32 pending_periph_flush_mask; u32 pending_merge_3d_flush_mask; u32 pending_dspp_flush_mask[DSPP_MAX - DSPP_0];