iwlwifi: debug: set NPK buffer in context info

When buffer destination for ini debug is configured
to NPK (TB22DTF) set the appropriate bit in the context
info struct.
Signed-off-by: NGil Adam <gil.adam@intel.com>
Signed-off-by: NLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200418110539.3c9f0fa6033f.Id1d6c191f85efe0d6cf35434bfb186ffd46ff64c@changeid

drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c

@@ -5,7 +5,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright (C) 2018 - 2019 Intel Corporation
+ * Copyright (C) 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -28,7 +28,7 @@
  *
  * BSD LICENSE
  *
- * Copyright (C) 2018 - 2019 Intel Corporation
+ * Copyright (C) 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -170,14 +170,24 @@ static int iwl_dbg_tlv_alloc_buf_alloc(struct iwl_trans *trans,
 
 	if (le32_to_cpu(tlv->length) != sizeof(*alloc) ||
 	    (buf_location != IWL_FW_INI_LOCATION_SRAM_PATH &&
-	     buf_location != IWL_FW_INI_LOCATION_DRAM_PATH))
+	     buf_location != IWL_FW_INI_LOCATION_DRAM_PATH &&
+	     buf_location != IWL_FW_INI_LOCATION_NPK_PATH)) {
+		IWL_ERR(trans,
+			"WRT: Invalid allocation TLV\n");
+		return -EINVAL;
+	}
+
+	if ((buf_location == IWL_FW_INI_LOCATION_SRAM_PATH ||
+	     buf_location == IWL_FW_INI_LOCATION_NPK_PATH) &&
+	     alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1) {
+		IWL_ERR(trans,
+			"WRT: Allocation TLV for SMEM/NPK path must have id %u (current: %u)\n",
+			IWL_FW_INI_ALLOCATION_ID_DBGC1, alloc_id);
 		return -EINVAL;
+	}
 
-	if ((buf_location == IWL_FW_INI_LOCATION_SRAM_PATH &&
-	     alloc_id != IWL_FW_INI_ALLOCATION_ID_DBGC1) ||
-	    (buf_location == IWL_FW_INI_LOCATION_DRAM_PATH &&
-	     (alloc_id == IWL_FW_INI_ALLOCATION_INVALID ||
-	      alloc_id >= IWL_FW_INI_ALLOCATION_NUM))) {
+	if (alloc_id == IWL_FW_INI_ALLOCATION_INVALID ||
+	    alloc_id >= IWL_FW_INI_ALLOCATION_NUM) {
 		IWL_ERR(trans,
 			"WRT: Invalid allocation id %u for allocation TLV\n",
 			alloc_id);

drivers/net/wireless/intel/iwlwifi/pcie/ctxt-info-gen3.c

@@ -5,7 +5,7 @@
  *
  * GPL LICENSE SUMMARY
  *
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -18,7 +18,7 @@
  *
  * BSD LICENSE
  *
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 - 2020 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -84,32 +84,35 @@ iwl_pcie_ctxt_info_dbg_enable(struct iwl_trans *trans,
 
 	fw_mon_cfg = &trans->dbg.fw_mon_cfg[alloc_id];
 
-	if (le32_to_cpu(fw_mon_cfg->buf_location) ==
-	    IWL_FW_INI_LOCATION_SRAM_PATH) {
+	switch (le32_to_cpu(fw_mon_cfg->buf_location)) {
+	case IWL_FW_INI_LOCATION_SRAM_PATH:
 		dbg_flags |= IWL_PRPH_SCRATCH_EDBG_DEST_INTERNAL;
-
 		IWL_DEBUG_FW(trans,
-			     "WRT: Applying SMEM buffer destination\n");
-
-		goto out;
-	}
-
-	if (le32_to_cpu(fw_mon_cfg->buf_location) ==
-	    IWL_FW_INI_LOCATION_DRAM_PATH &&
-	    trans->dbg.fw_mon_ini[alloc_id].num_frags) {
-		struct iwl_dram_data *frag =
-			&trans->dbg.fw_mon_ini[alloc_id].frags[0];
-
-		dbg_flags |= IWL_PRPH_SCRATCH_EDBG_DEST_DRAM;
+				"WRT: Applying SMEM buffer destination\n");
+		break;
 
+	case IWL_FW_INI_LOCATION_NPK_PATH:
+		dbg_flags |= IWL_PRPH_SCRATCH_EDBG_DEST_TB22DTF;
 		IWL_DEBUG_FW(trans,
-			     "WRT: Applying DRAM destination (alloc_id=%u)\n",
-			     alloc_id);
+			     "WRT: Applying NPK buffer destination\n");
+		break;
 
-		dbg_cfg->hwm_base_addr = cpu_to_le64(frag->physical);
-		dbg_cfg->hwm_size = cpu_to_le32(frag->size);
+	case IWL_FW_INI_LOCATION_DRAM_PATH:
+		if (trans->dbg.fw_mon_ini[alloc_id].num_frags) {
+			struct iwl_dram_data *frag =
+				&trans->dbg.fw_mon_ini[alloc_id].frags[0];
+			dbg_flags |= IWL_PRPH_SCRATCH_EDBG_DEST_DRAM;
+			dbg_cfg->hwm_base_addr = cpu_to_le64(frag->physical);
+			dbg_cfg->hwm_size = cpu_to_le32(frag->size);
+			IWL_DEBUG_FW(trans,
+				     "WRT: Applying DRAM destination (alloc_id=%u, num_frags=%u)\n",
+				     alloc_id,
+				     trans->dbg.fw_mon_ini[alloc_id].num_frags);
+		}
+		break;
+	default:
+		IWL_ERR(trans, "WRT: Invalid buffer destination\n");
 	}
-
 out:
 	if (dbg_flags)
 		*control_flags |= IWL_PRPH_SCRATCH_EARLY_DEBUG_EN | dbg_flags;