1 files changed, 54 insertions, 4 deletions

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index 9b62451b01ee..9b2b5044e8e0 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -9,6 +9,7 @@
 #include "dpu_hw_ctl.h"
 #include "dpu_hw_pingpong.h"
 #include "dpu_hw_intf.h"
+#include "dpu_hw_dspp.h"
 #include "dpu_encoder.h"
 #include "dpu_trace.h"
 
@@ -174,6 +175,23 @@ int dpu_rm_init(struct dpu_rm *rm,
 		rm->ctl_blks[ctl->id - CTL_0] = &hw->base;
 	}
 
+	for (i = 0; i < cat->dspp_count; i++) {
+		struct dpu_hw_dspp *hw;
+		const struct dpu_dspp_cfg *dspp = &cat->dspp[i];
+
+		if (dspp->id < DSPP_0 || dspp->id >= DSPP_MAX) {
+			DPU_ERROR("skip dspp %d with invalid id\n", dspp->id);
+			continue;
+		}
+		hw = dpu_hw_dspp_init(dspp->id, mmio, cat);
+		if (IS_ERR_OR_NULL(hw)) {
+			rc = PTR_ERR(hw);
+			DPU_ERROR("failed dspp object creation: err %d\n", rc);
+			goto fail;
+		}
+		rm->dspp_blks[dspp->id - DSPP_0] = &hw->base;
+	}
+
 	return 0;
 
 fail:
@@ -222,12 +240,17 @@ static bool _dpu_rm_check_lm_peer(struct dpu_rm *rm, int primary_idx,
  *      if lm, and all other hardwired blocks connected to the lm (pp) is
  *      available and appropriate
  * @pp_idx: output parameter, index of pingpong block attached to the layer
- *      mixer in rm->pongpong_blks[].
+ *      mixer in rm->pingpong_blks[].
+ * @dspp_idx: output parameter, index of dspp block attached to the layer
+ *      mixer in rm->dspp_blks[].
+ * @reqs: input parameter, rm requirements for HW blocks needed in the
+ *      datapath.
  * @Return: true if lm matches all requirements, false otherwise
  */
 static bool _dpu_rm_check_lm_and_get_connected_blks(struct dpu_rm *rm,
 		struct dpu_global_state *global_state,
-		uint32_t enc_id, int lm_idx, int *pp_idx)
+		uint32_t enc_id, int lm_idx, int *pp_idx, int *dspp_idx,
+		struct dpu_rm_requirements *reqs)
 {
 	const struct dpu_lm_cfg *lm_cfg;
 	int idx;
@@ -251,6 +274,23 @@ static bool _dpu_rm_check_lm_and_get_connected_blks(struct dpu_rm *rm,
 		return false;
 	}
 	*pp_idx = idx;
+
+	if (!reqs->topology.num_dspp)
+		return true;
+
+	idx = lm_cfg->dspp - DSPP_0;
+	if (idx < 0 || idx >= ARRAY_SIZE(rm->dspp_blks)) {
+		DPU_ERROR("failed to get dspp on lm %d\n", lm_cfg->dspp);
+		return false;
+	}
+
+	if (reserved_by_other(global_state->dspp_to_enc_id, idx, enc_id)) {
+		DPU_DEBUG("lm %d dspp %d already reserved\n", lm_cfg->id,
+				lm_cfg->dspp);
+		return false;
+	}
+	*dspp_idx = idx;
+
 	return true;
 }
 
@@ -262,6 +302,7 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm,
 {
 	int lm_idx[MAX_BLOCKS];
 	int pp_idx[MAX_BLOCKS];
+	int dspp_idx[MAX_BLOCKS] = {0};
 	int i, j, lm_count = 0;
 
 	if (!reqs->topology.num_lm) {
@@ -279,7 +320,8 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm,
 		lm_idx[lm_count] = i;
 
 		if (!_dpu_rm_check_lm_and_get_connected_blks(rm, global_state,
-				enc_id, i, &pp_idx[lm_count])) {
+				enc_id, i, &pp_idx[lm_count],
+				&dspp_idx[lm_count], reqs)) {
 			continue;
 		}
 
@@ -299,7 +341,8 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm,
 
 			if (!_dpu_rm_check_lm_and_get_connected_blks(rm,
 					global_state, enc_id, j,
-					&pp_idx[lm_count])) {
+					&pp_idx[lm_count], &dspp_idx[lm_count],
+					reqs)) {
 				continue;
 			}
 
@@ -316,6 +359,8 @@ static int _dpu_rm_reserve_lms(struct dpu_rm *rm,
 	for (i = 0; i < lm_count; i++) {
 		global_state->mixer_to_enc_id[lm_idx[i]] = enc_id;
 		global_state->pingpong_to_enc_id[pp_idx[i]] = enc_id;
+		global_state->dspp_to_enc_id[dspp_idx[i]] =
+			reqs->topology.num_dspp ? enc_id : 0;
 
 		trace_dpu_rm_reserve_lms(lm_idx[i] + LM_0, enc_id,
 					 pp_idx[i] + PINGPONG_0);
@@ -560,6 +605,11 @@ int dpu_rm_get_assigned_resources(struct dpu_rm *rm,
 		hw_to_enc_id = global_state->intf_to_enc_id;
 		max_blks = ARRAY_SIZE(rm->intf_blks);
 		break;
+	case DPU_HW_BLK_DSPP:
+		hw_blks = rm->dspp_blks;
+		hw_to_enc_id = global_state->dspp_to_enc_id;
+		max_blks = ARRAY_SIZE(rm->dspp_blks);
+		break;
 	default:
 		DPU_ERROR("blk type %d not managed by rm\n", type);
 		return 0;