This add the bits in RM to enable the DSC blocks

Reviewed-by: Dmitry Baryshkov <dmitry.barysh...@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhin...@quicinc.com>
Signed-off-by: Vinod Koul <vk...@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h |  1 +
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c  | 56 +++++++++++++++++++++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h  |  1 +
 3 files changed, 58 insertions(+)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
index 779e7bd01efd..a41f0eb2761b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h
@@ -145,6 +145,7 @@ struct dpu_global_state {
        uint32_t mixer_to_enc_id[LM_MAX - LM_0];
        uint32_t ctl_to_enc_id[CTL_MAX - CTL_0];
        uint32_t dspp_to_enc_id[DSPP_MAX - DSPP_0];
+       uint32_t dsc_to_enc_id[DSC_MAX - DSC_0];
 };
 
 struct dpu_global_state
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index 7497538adae1..0e6634b217aa 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -11,6 +11,7 @@
 #include "dpu_hw_intf.h"
 #include "dpu_hw_dspp.h"
 #include "dpu_hw_merge3d.h"
+#include "dpu_hw_dsc.h"
 #include "dpu_encoder.h"
 #include "dpu_trace.h"
 
@@ -77,6 +78,15 @@ int dpu_rm_destroy(struct dpu_rm *rm)
        for (i = 0; i < ARRAY_SIZE(rm->hw_intf); i++)
                dpu_hw_intf_destroy(rm->hw_intf[i]);
 
+       for (i = 0; i < ARRAY_SIZE(rm->dsc_blks); i++) {
+               struct dpu_hw_dsc *hw;
+
+               if (rm->dsc_blks[i]) {
+                       hw = to_dpu_hw_dsc(rm->dsc_blks[i]);
+                       dpu_hw_dsc_destroy(hw);
+               }
+       }
+
        return 0;
 }
 
@@ -210,6 +220,19 @@ int dpu_rm_init(struct dpu_rm *rm,
                rm->dspp_blks[dspp->id - DSPP_0] = &hw->base;
        }
 
+       for (i = 0; i < cat->dsc_count; i++) {
+               struct dpu_hw_dsc *hw;
+               const struct dpu_dsc_cfg *dsc = &cat->dsc[i];
+
+               hw = dpu_hw_dsc_init(dsc->id, mmio, cat);
+               if (IS_ERR_OR_NULL(hw)) {
+                       rc = PTR_ERR(hw);
+                       DPU_ERROR("failed dsc object creation: err %d\n", rc);
+                       goto fail;
+               }
+               rm->dsc_blks[dsc->id - DSC_0] = &hw->base;
+       }
+
        return 0;
 
 fail:
@@ -441,6 +464,28 @@ static int _dpu_rm_reserve_ctls(
        return 0;
 }
 
+static int _dpu_rm_reserve_dsc(struct dpu_rm *rm,
+                              struct dpu_global_state *global_state,
+                              struct drm_encoder *enc,
+                              const struct msm_display_topology *top)
+{
+       int num_dsc = top->num_dsc;
+       int i;
+
+       /* check if DSC required are allocated or not */
+       for (i = 0; i < num_dsc; i++) {
+               if (global_state->dsc_to_enc_id[i]) {
+                       DPU_ERROR("DSC %d is already allocated\n", i);
+                       return -EIO;
+               }
+       }
+
+       for (i = 0; i < num_dsc; i++)
+               global_state->dsc_to_enc_id[i] = enc->base.id;
+
+       return 0;
+}
+
 static int _dpu_rm_make_reservation(
                struct dpu_rm *rm,
                struct dpu_global_state *global_state,
@@ -462,6 +507,10 @@ static int _dpu_rm_make_reservation(
                return ret;
        }
 
+       ret  = _dpu_rm_reserve_dsc(rm, global_state, enc, &reqs->topology);
+       if (ret)
+               return ret;
+
        return ret;
 }
 
@@ -499,6 +548,8 @@ void dpu_rm_release(struct dpu_global_state *global_state,
                ARRAY_SIZE(global_state->mixer_to_enc_id), enc->base.id);
        _dpu_rm_clear_mapping(global_state->ctl_to_enc_id,
                ARRAY_SIZE(global_state->ctl_to_enc_id), enc->base.id);
+       _dpu_rm_clear_mapping(global_state->dsc_to_enc_id,
+               ARRAY_SIZE(global_state->dsc_to_enc_id), enc->base.id);
 }
 
 int dpu_rm_reserve(
@@ -567,6 +618,11 @@ int dpu_rm_get_assigned_resources(struct dpu_rm *rm,
                hw_to_enc_id = global_state->dspp_to_enc_id;
                max_blks = ARRAY_SIZE(rm->dspp_blks);
                break;
+       case DPU_HW_BLK_DSC:
+               hw_blks = rm->dsc_blks;
+               hw_to_enc_id = global_state->dsc_to_enc_id;
+               max_blks = ARRAY_SIZE(rm->dsc_blks);
+               break;
        default:
                DPU_ERROR("blk type %d not managed by rm\n", type);
                return 0;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h 
b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
index 9b13200a050a..32e0d8aa65ab 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.h
@@ -28,6 +28,7 @@ struct dpu_rm {
        struct dpu_hw_intf *hw_intf[INTF_MAX - INTF_0];
        struct dpu_hw_blk *dspp_blks[DSPP_MAX - DSPP_0];
        struct dpu_hw_blk *merge_3d_blks[MERGE_3D_MAX - MERGE_3D_0];
+       struct dpu_hw_blk *dsc_blks[DSC_MAX - DSC_0];
 };
 
 /**
-- 
2.34.1

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