linux-kernel - [PATCH 07/16] drm/msm/dpu: add cdm blocks to RM

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Message-ID: <20230830224910.8091-8-quic_abhinavk@quicinc.com>
Date:   Wed, 30 Aug 2023 15:49:00 -0700
From:   Abhinav Kumar <quic_abhinavk@...cinc.com>
To:     <freedreno@...ts.freedesktop.org>, Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>,
        "Daniel Vetter" <daniel@...ll.ch>
CC:     <dri-devel@...ts.freedesktop.org>, <quic_jesszhan@...cinc.com>,
        <quic_parellan@...cinc.com>, <quic_khsieh@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 07/16] drm/msm/dpu: add cdm blocks to RM

Add the RM APIs necessary to initialize and allocate CDM
blocks by the rest of the DPU pipeline.

Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 17 +++++++++++++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index f9215643c71a..7b6444a3fcb1 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -8,6 +8,7 @@
 #include "dpu_kms.h"
 #include "dpu_hw_lm.h"
 #include "dpu_hw_ctl.h"
+#include "dpu_hw_cdm.h"
 #include "dpu_hw_pingpong.h"
 #include "dpu_hw_sspp.h"
 #include "dpu_hw_intf.h"
@@ -90,6 +91,9 @@ int dpu_rm_destroy(struct dpu_rm *rm)
 		}
 	}
 
+	if (rm->cdm_blk)
+		dpu_hw_cdm_destroy(to_dpu_hw_cdm(rm->cdm_blk));
+
 	for (i = 0; i < ARRAY_SIZE(rm->hw_wb); i++)
 		dpu_hw_wb_destroy(rm->hw_wb[i]);
 
@@ -240,6 +244,19 @@ int dpu_rm_init(struct dpu_rm *rm,
 		rm->hw_sspp[sspp->id - SSPP_NONE] = hw;
 	}
 
+	if (cat->cdm) {
+		struct dpu_hw_cdm *hw;
+
+		hw = dpu_hw_cdm_init(cat->cdm, mmio);
+		/* CDM is optional so no need to bail out */
+		if (IS_ERR(hw)) {
+			rc = PTR_ERR(hw);
+			DPU_DEBUG("failed cdm object creation: err %d\n", rc);
+		} else {
+			rm->cdm_blk = &hw->base;
+		}
+	}
+
 	return 0;
 
 fail:
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
index 2b551566cbf4..29b221491926 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
@@ -22,6 +22,7 @@ struct dpu_global_state;
  * @hw_wb: array of wb hardware resources
  * @dspp_blks: array of dspp hardware resources
  * @hw_sspp: array of sspp hardware resources
+ * @cdm_blk: cdm hardware resource
  */
 struct dpu_rm {
 	struct dpu_hw_blk *pingpong_blks[PINGPONG_MAX - PINGPONG_0];
@@ -33,6 +34,7 @@ struct dpu_rm {
 	struct dpu_hw_blk *merge_3d_blks[MERGE_3D_MAX - MERGE_3D_0];
 	struct dpu_hw_blk *dsc_blks[DSC_MAX - DSC_0];
 	struct dpu_hw_sspp *hw_sspp[SSPP_MAX - SSPP_NONE];
+	struct dpu_hw_blk *cdm_blk;
 };
 
 /**
-- 
2.40.1