msm: camera: isp: Add PID MID support for SFE

This commit adds support for printing PID and MID in case
of page faults on SFE.

CRs-Fixed: 3040816
Change-Id: I99f8c6de6049802f7c67a72daf6c3fb24c3defb1
Signed-off-by: Gaurav Jindal <gjindal@codeaurora.org>

drivers/cam_isp/isp_hw_mgr/cam_ife_hw_mgr.c

@@ -95,7 +95,7 @@ static int cam_ife_mgr_finish_clk_bw_update(
 			clk_bw_args.hw_intf = g_ife_hw_mgr.ife_devices[ctx->base[i].idx]->hw_intf;
 		else if ((ctx->base[i].hw_type == CAM_ISP_HW_TYPE_SFE) &&
 			(ctx->num_acq_sfe_out || (!list_empty(&ctx->res_list_ife_in_rd))))
-			clk_bw_args.hw_intf = g_ife_hw_mgr.sfe_devices[ctx->base[i].idx];
+			clk_bw_args.hw_intf = g_ife_hw_mgr.sfe_devices[ctx->base[i].idx]->hw_intf;
 		else
 			continue;
 
@@ -618,7 +618,7 @@ static int cam_ife_hw_mgr_notify_overflow(
 			if (hw_mgr_ctx->base[i].idx != evt->in_core_idx)
 				continue;
 
-			hw_if = g_ife_hw_mgr.sfe_devices[evt->in_core_idx];
+			hw_if = g_ife_hw_mgr.sfe_devices[evt->in_core_idx]->hw_intf;
 			res_id = sfe_res_id;
 		} else {
 			continue;
@@ -2336,7 +2336,7 @@ static int cam_ife_hw_mgr_acquire_sfe_hw(
 			if (!ife_hw_mgr->sfe_devices[i])
 				continue;
 
-			hw_intf = ife_hw_mgr->sfe_devices[i];
+			hw_intf = ife_hw_mgr->sfe_devices[i]->hw_intf;
 			rc = hw_intf->hw_ops.reserve(hw_intf->hw_priv,
 					sfe_acquire,
 					sizeof(struct cam_sfe_acquire_args));
@@ -2354,7 +2354,7 @@ static int cam_ife_hw_mgr_acquire_sfe_hw(
 			if (!ife_hw_mgr->sfe_devices[i])
 				continue;
 
-			hw_intf = ife_hw_mgr->sfe_devices[i];
+			hw_intf = ife_hw_mgr->sfe_devices[i]->hw_intf;
 			rc = hw_intf->hw_ops.reserve(hw_intf->hw_priv,
 					sfe_acquire,
 					sizeof(struct cam_sfe_acquire_args));
@@ -2698,7 +2698,7 @@ static int cam_ife_hw_mgr_acquire_sfe_bus_rd(
 		if (!ife_hw_mgr->sfe_devices[i])
 			continue;
 
-		hw_intf = ife_hw_mgr->sfe_devices[i];
+		hw_intf = ife_hw_mgr->sfe_devices[i]->hw_intf;
 		rc = hw_intf->hw_ops.reserve(hw_intf->hw_priv,
 			&sfe_acquire, sizeof(struct cam_sfe_acquire_args));
 		if (rc)
@@ -2739,7 +2739,7 @@ acquire_successful:
 			if (i == sfe_rd_res->hw_res[0]->hw_intf->hw_idx)
 				continue;
 
-			hw_intf = ife_hw_mgr->sfe_devices[i];
+			hw_intf = ife_hw_mgr->sfe_devices[i]->hw_intf;
 			rc = hw_intf->hw_ops.reserve(hw_intf->hw_priv,
 				&sfe_acquire, sizeof(sfe_acquire));
 			if (rc)
@@ -3928,7 +3928,7 @@ static int cam_ife_hw_mgr_acquire_offline_res_sfe(
 	sfe_acquire.sfe_in.res_id = CAM_ISP_HW_SFE_IN_PIX;
 
 	hw_intf = ife_hw_mgr->sfe_devices[
-		sfe_bus_rd_res->hw_res[i]->hw_intf->hw_idx];
+		sfe_bus_rd_res->hw_res[i]->hw_intf->hw_idx]->hw_intf;
 
 	rc = hw_intf->hw_ops.reserve(hw_intf->hw_priv, &sfe_acquire,
 		sizeof(struct cam_sfe_acquire_args));
@@ -3953,7 +3953,7 @@ static int cam_ife_hw_mgr_acquire_offline_res_sfe(
 
 		sfe_acquire.sfe_in.rsrc_node = NULL;
 		hw_intf = ife_hw_mgr->sfe_devices[
-			sfe_bus_rd_res->hw_res[++i]->hw_intf->hw_idx];
+			sfe_bus_rd_res->hw_res[++i]->hw_intf->hw_idx]->hw_intf;
 
 		rc = hw_intf->hw_ops.reserve(hw_intf->hw_priv, &sfe_acquire,
 			sizeof(struct cam_sfe_acquire_args));
@@ -6406,8 +6406,8 @@ static int cam_ife_mgr_start_hw(void *hw_mgr_priv, void *start_hw_args)
 		debug_cfg.u.dbg_cfg.sfe_debug_cfg = g_ife_hw_mgr.debug_cfg.sfe_debug;
 		debug_cfg.u.dbg_cfg.sfe_sensor_sel = g_ife_hw_mgr.debug_cfg.sfe_sensor_diag_cfg;
 		if (g_ife_hw_mgr.sfe_devices[i]) {
-			rc = g_ife_hw_mgr.sfe_devices[i]->hw_ops.process_cmd(
+			rc = g_ife_hw_mgr.sfe_devices[i]->hw_intf->hw_ops.process_cmd(
-				g_ife_hw_mgr.sfe_devices[i]->hw_priv,
+				g_ife_hw_mgr.sfe_devices[i]->hw_intf->hw_priv,
 				CAM_ISP_HW_CMD_SET_SFE_DEBUG_CFG,
 				&debug_cfg,
 				sizeof(debug_cfg));
@@ -7855,7 +7855,7 @@ static int cam_isp_blob_sfe_core_cfg_update(
 			!ife_hw_mgr->sfe_devices[idx])
 			continue;
 
-		hw_intf = ife_hw_mgr->sfe_devices[idx];
+		hw_intf = ife_hw_mgr->sfe_devices[idx]->hw_intf;
 		if (hw_intf && hw_intf->hw_ops.process_cmd) {
 			memcpy(&sfe_core_config.core_config,
 				core_config,
@@ -10454,19 +10454,51 @@ static void cam_ife_mgr_pf_dump(uint32_t res_id,
 	}
 }
 
+static void cam_ife_mgr_pf_dump_mid_info(
+	struct cam_ife_hw_mgr_ctx    *ctx,
+	struct cam_hw_cmd_args       *hw_cmd_args,
+	struct cam_isp_hw_intf_data  *hw_intf_data)
+{
+	struct cam_packet                  *packet;
+	struct cam_isp_hw_get_cmd_update    cmd_update;
+	struct cam_isp_hw_get_res_for_mid   get_res;
+	int                                 rc = 0;
+
+	packet  = hw_cmd_args->u.pf_args.pf_data.packet;
+	get_res.mid = hw_cmd_args->u.pf_args.mid;
+	cmd_update.cmd_type = CAM_ISP_HW_CMD_GET_RES_FOR_MID;
+	cmd_update.data = (void *) &get_res;
+
+	/* get resource id for given mid */
+	rc = hw_intf_data->hw_intf->hw_ops.process_cmd(hw_intf_data->hw_intf->hw_priv,
+		cmd_update.cmd_type, &cmd_update, sizeof(struct cam_isp_hw_get_cmd_update));
+
+	if (rc) {
+		CAM_ERR(CAM_ISP,
+			"getting mid port resource id failed ctx id:%d req id:%lld",
+			ctx->ctx_index, packet->header.request_id);
+		return;
+	}
+
+	*(hw_cmd_args->u.pf_args.resource_type) = get_res.out_res_id;
+	ctx->flags.pf_mid_found = true;
+	ctx->pf_info.mid = get_res.mid;
+	ctx->pf_info.out_port_id = get_res.out_res_id;
+	CAM_ERR(CAM_ISP,
+		"Page fault on resource id:(0x%x) ctx id:%d req id:%lld",
+		get_res.out_res_id, ctx->ctx_index, packet->header.request_id);
+}
+
 static void cam_ife_mgr_dump_pf_data(
 	struct cam_ife_hw_mgr  *hw_mgr,
 	struct cam_hw_cmd_args *hw_cmd_args)
 {
-	struct cam_ife_hw_mgr_ctx *ctx;
+	struct cam_ife_hw_mgr_ctx          *ctx;
-	struct cam_isp_hw_mgr_res          *hw_mgr_res;
-	struct cam_isp_hw_get_cmd_update    cmd_update;
-	struct cam_isp_hw_get_res_for_mid   get_res;
 	struct cam_packet                  *packet;
-	uint32_t    hw_id;
+	struct cam_isp_hw_intf_data        *hw_intf_data;
-	uint32_t    *resource_type;
+	uint32_t                           *resource_type;
-	bool         *ctx_found, hw_id_found = false;
+	bool                               *ctx_found;
-	int        i, j, rc = 0;
+	int                                 i, j;
 
 	ctx = (struct cam_ife_hw_mgr_ctx *)hw_cmd_args->ctxt_to_hw_map;
 
@@ -10480,93 +10512,49 @@ static void cam_ife_mgr_dump_pf_data(
 	if (ctx->flags.pf_mid_found)
 		goto outportlog;
 
-	if (!g_ife_hw_mgr.hw_pid_support)
+	for (i = 0; i < ctx->num_base; i++) {
-		goto mid_check;
+		if (ctx->base[i].hw_type == CAM_ISP_HW_TYPE_VFE)
-
+			hw_intf_data = g_ife_hw_mgr.ife_devices[ctx->base[i].idx];
-	for (i = 0; i < CAM_IFE_HW_NUM_MAX; i++) {
+		else if (ctx->base[i].hw_type == CAM_ISP_HW_TYPE_SFE)
-		if (!hw_mgr->ife_devices[i])
+			hw_intf_data = g_ife_hw_mgr.sfe_devices[ctx->base[i].idx];
+		else
 			continue;
 
-		for (j = 0; j < g_ife_hw_mgr.ife_devices[i]->num_hw_pid; j++) {
+		/*
-			if (g_ife_hw_mgr.ife_devices[i]->hw_pid[j] ==
+		 * Few old targets do not have support for PID, for such targets,
-				hw_cmd_args->u.pf_args.pid) {
+		 * we need to print mid for all the bases, SFE enabled targets
-				hw_id_found = true;
+		 * are expected to have PID support.
-				hw_id = i;
+		 */
+		if (!g_ife_hw_mgr.hw_pid_support) {
+			if (ctx->base[i].split_id == CAM_ISP_HW_SPLIT_LEFT)
+				cam_ife_mgr_pf_dump_mid_info(ctx, hw_cmd_args, hw_intf_data);
+			continue;
+		}
+
+		for (j = 0; j < hw_intf_data->num_hw_pid; j++) {
+			if (hw_intf_data->hw_pid[j] == hw_cmd_args->u.pf_args.pid) {
+				*ctx_found = true;
+				CAM_ERR(CAM_ISP, "PF found for %s%d pid: %u",
+					ctx->base[i].hw_type == CAM_ISP_HW_TYPE_VFE ? "VFE" : "SFE",
+					ctx->base[i].idx, hw_cmd_args->u.pf_args.pid);
+				cam_ife_mgr_pf_dump_mid_info(ctx, hw_cmd_args, hw_intf_data);
 				break;
 			}
 		}
-		if (hw_id_found)
+
+		if (*ctx_found)
 			break;
 	}
 
-	if (i == CAM_IFE_HW_NUM_MAX) {
+	if (g_ife_hw_mgr.hw_pid_support && (i == ctx->num_base || !*ctx_found))
 		CAM_INFO(CAM_ISP,
-			"PID:%d  is not matching with any IFE HW PIDs ctx id:%d",
+			"This context does not cause pf:pid:%d ctx_id:%d",
-			hw_cmd_args->u.pf_args.pid,  ctx->ctx_index);
+			hw_cmd_args->u.pf_args.pid, ctx->ctx_index);
-		return;
+	cam_ife_mgr_pf_dump(ctx->pf_info.out_port_id, ctx);
-	}
-
-	for (i = 0; i < ctx->num_base; i++) {
-		if (ctx->base[i].idx == hw_id) {
-			*ctx_found = true;
-			break;
-		}
-	}
-
-	if (!(*ctx_found)) {
-		CAM_INFO(CAM_ISP,
-			"This context does not cause pf:pid:%d hw id:%d ctx_id:%d",
-			hw_cmd_args->u.pf_args.pid, hw_id, ctx->ctx_index);
-		return;
-	}
-
-mid_check:
-	for (i = 0; i < max_ife_out_res; i++) {
-		hw_mgr_res = &ctx->res_list_ife_out[i];
-		if (!hw_mgr_res->hw_res[0])
-			continue;
-
-		break;
-	}
-
-	if (i >= max_ife_out_res) {
-		CAM_ERR(CAM_ISP,
-			"NO valid outport resources ctx id:%d req id:%lld",
-			ctx->ctx_index, packet->header.request_id);
-		return;
-	}
-
-	get_res.mid = hw_cmd_args->u.pf_args.mid;
-	cmd_update.res = hw_mgr_res->hw_res[0];
-	cmd_update.cmd_type = CAM_ISP_HW_CMD_GET_RES_FOR_MID;
-	cmd_update.data = (void *) &get_res;
-
-	/* get resource id for given mid */
-	rc = hw_mgr_res->hw_res[0]->hw_intf->hw_ops.process_cmd(
-		hw_mgr_res->hw_res[0]->hw_intf->hw_priv,
-		cmd_update.cmd_type, &cmd_update,
-		sizeof(struct cam_isp_hw_get_cmd_update));
-
-	if (rc) {
-		CAM_ERR(CAM_ISP,
-			"getting mid port resource id failed ctx id:%d req id:%lld",
-			ctx->ctx_index, packet->header.request_id);
-		return;
-	}
-
-	CAM_ERR(CAM_ISP,
-		"Page fault on resource id:(0x%x) ctx id:%d req id:%lld",
-		get_res.out_res_id, ctx->ctx_index, packet->header.request_id);
-	*resource_type = get_res.out_res_id;
-	ctx->flags.pf_mid_found = true;
-	ctx->pf_info.mid = get_res.mid;
-	ctx->pf_info.out_port_id = get_res.out_res_id;
-	cam_ife_mgr_pf_dump(get_res.out_res_id, ctx);
 
 outportlog:
 	cam_ife_mgr_print_io_bufs(hw_mgr, *resource_type, packet,
 		ctx_found, ctx);
-
 }
 
 int cam_isp_config_csid_rup_aup(
@@ -12086,7 +12074,7 @@ static int cam_ife_set_sfe_cache_debug(void *data, u64 val)
 	hw_idx = val & 0xF;
 	for (i = 0; i < CAM_SFE_HW_NUM_MAX; i++) {
 		if ((g_ife_hw_mgr.sfe_devices[i]) && (i == hw_idx)) {
-			hw_intf = g_ife_hw_mgr.sfe_devices[i];
+			hw_intf = g_ife_hw_mgr.sfe_devices[i]->hw_intf;
 
 			debug_cfg.u.cache_cfg.sfe_cache_dbg = (val >> 4);
 			g_ife_hw_mgr.debug_cfg.sfe_cache_debug[i] =
@@ -12473,7 +12461,7 @@ int cam_ife_hw_mgr_init(struct cam_hw_mgr_intf *hw_mgr_intf, int *iommu_hdl)
 		if (!rc) {
 			if (j == 0) {
 				struct cam_hw_intf *sfe_device =
-					g_ife_hw_mgr.sfe_devices[i];
+					g_ife_hw_mgr.sfe_devices[i]->hw_intf;
 				struct cam_hw_info *sfe_hw =
 					(struct cam_hw_info *)
 					sfe_device->hw_priv;
@@ -12488,6 +12476,9 @@ int cam_ife_hw_mgr_init(struct cam_hw_mgr_intf *hw_mgr_intf, int *iommu_hdl)
 				if (!rc)
 					g_ife_hw_mgr.isp_bus_caps.max_sfe_out_res_type =
 						isp_bus_cap.max_out_res_type;
+
+				if (g_ife_hw_mgr.sfe_devices[i]->num_hw_pid)
+					g_ife_hw_mgr.hw_pid_support = true;
 			}
 			j++;
 		}

drivers/cam_isp/isp_hw_mgr/cam_ife_hw_mgr.h

@@ -350,7 +350,7 @@ struct cam_ife_hw_mgr {
 	struct cam_isp_hw_mgr          mgr_common;
 	struct cam_hw_intf            *csid_devices[CAM_IFE_CSID_HW_NUM_MAX];
 	struct cam_isp_hw_intf_data   *ife_devices[CAM_IFE_HW_NUM_MAX];
-	struct cam_hw_intf            *sfe_devices[CAM_SFE_HW_NUM_MAX];
+	struct cam_isp_hw_intf_data   *sfe_devices[CAM_SFE_HW_NUM_MAX];
 	struct cam_soc_reg_map        *cdm_reg_map[CAM_IFE_HW_NUM_MAX];
 
 	struct mutex                     ctx_mutex;

drivers/cam_isp/isp_hw_mgr/isp_hw/include/cam_sfe_hw_intf.h

@@ -354,7 +354,7 @@ struct cam_sfe_acquire_args {
  *                          successful initialization
  * @hw_idx:                 Index of SFE HW
  */
-int cam_sfe_hw_init(struct cam_hw_intf **sfe_hw, uint32_t hw_idx);
+int cam_sfe_hw_init(struct cam_isp_hw_intf_data **sfe_hw, uint32_t hw_idx);
 
 #endif /* _CAM_SFE_HW_INTF_H_ */
 

drivers/cam_isp/isp_hw_mgr/isp_hw/sfe_hw/cam_sfe_core.c

@@ -360,7 +360,7 @@ int cam_sfe_process_cmd(void *hw_priv, uint32_t cmd_type,
 		core_info->sfe_top->hw_ops.process_cmd(
 			core_info->sfe_top->top_priv, cmd_type,
 			cmd_args, arg_size);
-
+	case CAM_ISP_HW_CMD_GET_RES_FOR_MID:
 		/* propagate to SFE bus wr */
 		core_info->sfe_bus_wr->hw_ops.process_cmd(
 			core_info->sfe_bus_wr->bus_priv, cmd_type,

drivers/cam_isp/isp_hw_mgr/isp_hw/sfe_hw/cam_sfe_dev.c

@@ -15,7 +15,7 @@
 #include "cam_debug_util.h"
 #include "camera_main.h"
 
-static struct cam_hw_intf *cam_sfe_hw_list[CAM_SFE_HW_NUM_MAX];
+static struct cam_isp_hw_intf_data cam_sfe_hw_list[CAM_SFE_HW_NUM_MAX];
 
 static int cam_sfe_component_bind(struct device *dev,
 	struct device *master_dev, void *data)
@@ -27,7 +27,8 @@ static int cam_sfe_component_bind(struct device *dev,
 	struct cam_sfe_hw_core_info       *core_info = NULL;
 	struct cam_sfe_hw_info            *hw_info = NULL;
 	struct platform_device            *pdev = NULL;
-	int                                rc = 0;
+	struct cam_sfe_soc_private        *soc_priv;
+	int                                i, rc = 0;
 
 	pdev = to_platform_device(dev);
 	sfe_hw_intf = kzalloc(sizeof(struct cam_hw_intf), GFP_KERNEL);
@@ -106,7 +107,13 @@ static int cam_sfe_component_bind(struct device *dev,
 	init_completion(&sfe_info->hw_complete);
 
 	if (sfe_hw_intf->hw_idx < CAM_SFE_HW_NUM_MAX)
-		cam_sfe_hw_list[sfe_hw_intf->hw_idx] = sfe_hw_intf;
+		cam_sfe_hw_list[sfe_hw_intf->hw_idx].hw_intf = sfe_hw_intf;
+
+	soc_priv = sfe_info->soc_info.soc_private;
+	cam_sfe_hw_list[sfe_hw_intf->hw_idx].num_hw_pid = soc_priv->num_pid;
+	for (i = 0; i < soc_priv->num_pid; i++)
+		cam_sfe_hw_list[sfe_hw_intf->hw_idx].hw_pid[i] =
+			soc_priv->pid[i];
 
 	CAM_DBG(CAM_SFE, "SFE%d bound successfully",
 		sfe_hw_intf->hw_idx);
@@ -147,7 +154,7 @@ static void cam_sfe_component_unbind(struct device *dev,
 		sfe_hw_intf->hw_type, sfe_hw_intf->hw_idx);
 
 	if (sfe_hw_intf->hw_idx < CAM_SFE_HW_NUM_MAX)
-		cam_sfe_hw_list[sfe_hw_intf->hw_idx] = NULL;
+		cam_sfe_hw_list[sfe_hw_intf->hw_idx].hw_intf = NULL;
 
 	sfe_info = sfe_hw_intf->hw_priv;
 	if (!sfe_info) {
@@ -206,12 +213,12 @@ int cam_sfe_remove(struct platform_device *pdev)
 	return 0;
 }
 
-int cam_sfe_hw_init(struct cam_hw_intf **sfe_hw, uint32_t hw_idx)
+int cam_sfe_hw_init(struct cam_isp_hw_intf_data **sfe_hw, uint32_t hw_idx)
 {
 	int rc = 0;
 
-	if (cam_sfe_hw_list[hw_idx]) {
+	if (cam_sfe_hw_list[hw_idx].hw_intf) {
-		*sfe_hw = cam_sfe_hw_list[hw_idx];
+		*sfe_hw = &cam_sfe_hw_list[hw_idx];
 		rc = 0;
 	} else {
 		*sfe_hw = NULL;

drivers/cam_isp/isp_hw_mgr/isp_hw/sfe_hw/cam_sfe_soc.c

@@ -10,12 +10,30 @@
 
 static int cam_sfe_get_dt_properties(struct cam_hw_soc_info *soc_info)
 {
-	int rc = 0;
+	struct cam_sfe_soc_private       *soc_private = soc_info->soc_private;
+	struct platform_device           *pdev = soc_info->pdev;
+	uint32_t                          num_pid = 0;
+	int                               i, rc = 0;
 
 	rc = cam_soc_util_get_dt_properties(soc_info);
-	if (rc)
+	if (rc) {
 		CAM_ERR(CAM_SFE, "Error get DT properties failed rc=%d", rc);
+		goto end;
+	}
 
+	soc_private->num_pid = 0;
+	num_pid = of_property_count_u32_elems(pdev->dev.of_node, "cam_hw_pid");
+	CAM_DBG(CAM_SFE, "sfe:%d pid count %d", soc_info->index, num_pid);
+
+	if (num_pid <= 0  || num_pid > CAM_ISP_HW_MAX_PID_VAL)
+		goto end;
+
+	for (i = 0; i < num_pid; i++)
+		of_property_read_u32_index(pdev->dev.of_node, "cam_hw_pid", i,
+			&soc_private->pid[i]);
+
+	soc_private->num_pid = num_pid;
+end:
 	return rc;
 }
 

drivers/cam_isp/isp_hw_mgr/isp_hw/sfe_hw/cam_sfe_soc.h

@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * Copyright (c) 2020, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2020-2021, The Linux Foundation. All rights reserved.
  */
 
 #ifndef _CAM_SFE_SOC_H_
@@ -18,10 +18,14 @@
  *                           This handle is used for all further interface
  *                           with CPAS.
  * @cpas_version:            CPAS version
+ * @num_pid:                 Number of pids of sfe
+ * @pid:                     SFE pid values list
  */
 struct cam_sfe_soc_private {
 	uint32_t    cpas_handle;
 	uint32_t    cpas_version;
+	uint32_t    num_pid;
+	uint32_t    pid[CAM_ISP_HW_MAX_PID_VAL];
 };
 
 /*

drivers/cam_isp/isp_hw_mgr/isp_hw/sfe_hw/sfe_bus/cam_sfe_bus_rd.c

@@ -128,7 +128,7 @@ struct cam_sfe_bus_rd_priv {
 		CAM_SFE_BUS_RD_MAX_CLIENTS];
 	struct cam_isp_resource_node  sfe_bus_rd[
 		CAM_SFE_BUS_RD_MAX];
-
+	struct cam_sfe_bus_rd_hw_info      *bus_rd_hw_info;
 	int                                 irq_handle;
 	int                                 error_irq_handle;
 	void                               *tasklet_info;
@@ -1524,6 +1524,46 @@ static int cam_sfe_bus_rd_update_rm_core_cfg(
 	return 0;
 }
 
+static int cam_sfe_bus_rd_get_res_for_mid(
+	struct cam_sfe_bus_rd_priv *bus_priv,
+	void *cmd_args, uint32_t arg_size)
+{
+	struct cam_sfe_bus_rd_hw_info          *hw_info;
+	struct cam_isp_hw_get_cmd_update       *cmd_update = cmd_args;
+	struct cam_isp_hw_get_res_for_mid      *get_res = NULL;
+	int i, j;
+
+	get_res = (struct cam_isp_hw_get_res_for_mid *)cmd_update->data;
+	if (!get_res) {
+		CAM_ERR(CAM_SFE,
+			"invalid get resource for mid paramas");
+		return -EINVAL;
+	}
+
+	hw_info =  bus_priv->bus_rd_hw_info;
+	for (i = 0; i < bus_priv->num_bus_rd_resc; i++) {
+		for (j = 0; j < CAM_SFE_BUS_MAX_MID_PER_PORT; j++) {
+			if (hw_info->sfe_bus_rd_info[i].mid[j] == get_res->mid)
+				goto end;
+		}
+	}
+
+	/*
+	 * Do not update out_res_id in case of no match.
+	 * Correct value will be dumped in hw mgr
+	 */
+	if (i == bus_priv->num_bus_rd_resc) {
+		CAM_INFO(CAM_SFE, "mid:%d does not match with any out resource", get_res->mid);
+		return 0;
+	}
+
+end:
+	CAM_INFO(CAM_SFE, "match mid :%d  out resource: 0x%x found",
+		get_res->mid, bus_priv->sfe_bus_rd[i].res_id);
+	get_res->out_res_id = bus_priv->sfe_bus_rd[i].res_id;
+	return 0;
+}
+
 static int cam_sfe_bus_init_hw(void *hw_priv,
 	void *init_hw_args, uint32_t arg_size)
 {
@@ -1668,6 +1708,9 @@ static int cam_sfe_bus_rd_process_cmd(
 	case CAM_ISP_HW_CMD_RM_ENABLE_DISABLE:
 		rc = cam_sfe_bus_rd_update_rm_core_cfg(priv, cmd_args, arg_size);
 		break;
+	case CAM_ISP_HW_CMD_GET_RES_FOR_MID:
+		rc = cam_sfe_bus_rd_get_res_for_mid(priv, cmd_args, arg_size);
+		break;
 	default:
 		CAM_ERR_RATE_LIMIT(CAM_SFE,
 			"Invalid SFE BUS RD command type: %d",
@@ -1727,6 +1770,7 @@ int cam_sfe_bus_rd_init(
 	bus_priv->common_data.common_reg        = &bus_rd_hw_info->common_reg;
 	bus_priv->top_irq_shift                 = bus_rd_hw_info->top_irq_shift;
 	bus_priv->latency_buf_allocation        = bus_rd_hw_info->latency_buf_allocation;
+	bus_priv->bus_rd_hw_info = bus_rd_hw_info;
 
 	rc = cam_irq_controller_init(drv_name,
 		bus_priv->common_data.mem_base,

drivers/cam_isp/isp_hw_mgr/isp_hw/sfe_hw/sfe_bus/cam_sfe_bus_wr.c

@@ -2940,6 +2940,45 @@ add_reg_pair:
 	return 0;
 }
 
+static int cam_sfe_bus_wr_get_res_for_mid(
+	struct cam_sfe_bus_wr_priv *bus_priv,
+	void *cmd_args, uint32_t arg_size)
+{
+	struct cam_isp_hw_get_cmd_update       *cmd_update = cmd_args;
+	struct cam_isp_hw_get_res_for_mid       *get_res = NULL;
+	int i, j;
+
+	get_res = (struct cam_isp_hw_get_res_for_mid *)cmd_update->data;
+	if (!get_res) {
+		CAM_ERR(CAM_SFE,
+			"invalid get resource for mid paramas");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < bus_priv->num_out; i++) {
+
+		for (j = 0; j < CAM_SFE_BUS_MAX_MID_PER_PORT; j++) {
+			if (bus_priv->sfe_out_hw_info[i].mid[j] == get_res->mid)
+				goto end;
+		}
+	}
+	/*
+	 * Do not update out_res_id in case of no match.
+	 * Correct value will be dumped in hw mgr
+	 */
+	if (i == bus_priv->num_out) {
+		CAM_INFO(CAM_SFE, "mid:%d does not match with any out resource", get_res->mid);
+		return 0;
+	}
+
+end:
+	CAM_INFO(CAM_SFE, "match mid :%d  out resource: %s 0x%x found",
+		get_res->mid, bus_priv->sfe_out_hw_info[i].name,
+		bus_priv->sfe_out[i].res_id);
+	get_res->out_res_id = bus_priv->sfe_out[i].res_id;
+	return 0;
+}
+
 static int cam_sfe_bus_wr_start_hw(void *hw_priv,
 	void *start_hw_args, uint32_t arg_size)
 {
@@ -3092,6 +3131,9 @@ static int cam_sfe_bus_wr_process_cmd(
 	case CAM_ISP_HW_CMD_WM_BW_LIMIT_CONFIG:
 		rc = cam_sfe_bus_wr_update_bw_limiter(priv, cmd_args, arg_size);
 		break;
+	case CAM_ISP_HW_CMD_GET_RES_FOR_MID:
+		rc = cam_sfe_bus_wr_get_res_for_mid(priv, cmd_args, arg_size);
+		break;
 	default:
 		CAM_ERR_RATE_LIMIT(CAM_SFE, "Invalid HW command type:%d",
 			cmd_type);