1 files changed, 410 insertions, 0 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
new file mode 100644
index 0000000..18be915
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -0,0 +1,410 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 - 2019 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
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <linuxwifi@intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
+ * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
+ * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
+ * Copyright(c) 2018 - 2019 Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+#ifndef __iwl_fw_dbg_h__
+#define __iwl_fw_dbg_h__
+#include <linux/workqueue.h>
+#include <net/cfg80211.h>
+#include "runtime.h"
+#include "iwl-prph.h"
+#include "iwl-io.h"
+#include "file.h"
+#include "error-dump.h"
+#include "api/commands.h"
+#include "api/dbg-tlv.h"
+#include "api/alive.h"
+
+/**
+ * struct iwl_fw_dump_desc - describes the dump
+ * @len: length of trig_desc->data
+ * @trig_desc: the description of the dump
+ */
+struct iwl_fw_dump_desc {
+	size_t len;
+	/* must be last */
+	struct iwl_fw_error_dump_trigger_desc trig_desc;
+};
+
+/**
+ * struct iwl_fw_dbg_params - register values to restore
+ * @in_sample: DBGC_IN_SAMPLE value
+ * @out_ctrl: DBGC_OUT_CTRL value
+ */
+struct iwl_fw_dbg_params {
+	u32 in_sample;
+	u32 out_ctrl;
+};
+
+extern const struct iwl_fw_dump_desc iwl_dump_desc_assert;
+
+static inline void iwl_fw_free_dump_desc(struct iwl_fw_runtime *fwrt)
+{
+	if (fwrt->dump.desc != &iwl_dump_desc_assert)
+		kfree(fwrt->dump.desc);
+	fwrt->dump.desc = NULL;
+	fwrt->dump.lmac_err_id[0] = 0;
+	if (fwrt->smem_cfg.num_lmacs > 1)
+		fwrt->dump.lmac_err_id[1] = 0;
+	fwrt->dump.umac_err_id = 0;
+}
+
+int iwl_fw_dbg_collect_desc(struct iwl_fw_runtime *fwrt,
+			    const struct iwl_fw_dump_desc *desc,
+			    bool monitor_only, unsigned int delay);
+int iwl_fw_dbg_error_collect(struct iwl_fw_runtime *fwrt,
+			     enum iwl_fw_dbg_trigger trig_type);
+int _iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwrt,
+			    enum iwl_fw_ini_trigger_id id);
+int iwl_fw_dbg_ini_collect(struct iwl_fw_runtime *fwrt, u32 legacy_trigger_id);
+int iwl_fw_dbg_collect(struct iwl_fw_runtime *fwrt,
+		       enum iwl_fw_dbg_trigger trig, const char *str,
+		       size_t len, struct iwl_fw_dbg_trigger_tlv *trigger);
+int iwl_fw_dbg_collect_trig(struct iwl_fw_runtime *fwrt,
+			    struct iwl_fw_dbg_trigger_tlv *trigger,
+			    const char *fmt, ...) __printf(3, 4);
+int iwl_fw_start_dbg_conf(struct iwl_fw_runtime *fwrt, u8 id);
+
+#define iwl_fw_dbg_trigger_enabled(fw, id) ({			\
+	void *__dbg_trigger = (fw)->dbg.trigger_tlv[(id)];	\
+	unlikely(__dbg_trigger);				\
+})
+
+static inline struct iwl_fw_dbg_trigger_tlv*
+_iwl_fw_dbg_get_trigger(const struct iwl_fw *fw, enum iwl_fw_dbg_trigger id)
+{
+	return fw->dbg.trigger_tlv[id];
+}
+
+#define iwl_fw_dbg_get_trigger(fw, id) ({			\
+	BUILD_BUG_ON(!__builtin_constant_p(id));		\
+	BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX);		\
+	_iwl_fw_dbg_get_trigger((fw), (id));			\
+})
+
+static inline bool
+iwl_fw_dbg_trigger_vif_match(struct iwl_fw_dbg_trigger_tlv *trig,
+			     struct wireless_dev *wdev)
+{
+	u32 trig_vif = le32_to_cpu(trig->vif_type);
+
+	return trig_vif == IWL_FW_DBG_CONF_VIF_ANY ||
+	       wdev->iftype == trig_vif;
+}
+
+static inline bool
+iwl_fw_dbg_trigger_stop_conf_match(struct iwl_fw_runtime *fwrt,
+				   struct iwl_fw_dbg_trigger_tlv *trig)
+{
+	return ((trig->mode & IWL_FW_DBG_TRIGGER_STOP) &&
+		(fwrt->dump.conf == FW_DBG_INVALID ||
+		(BIT(fwrt->dump.conf) & le32_to_cpu(trig->stop_conf_ids))));
+}
+
+static inline bool
+iwl_fw_dbg_no_trig_window(struct iwl_fw_runtime *fwrt, u32 id, u32 dis_usec)
+{
+	unsigned long wind_jiff = usecs_to_jiffies(dis_usec);
+
+	/* If this is the first event checked, jump to update start ts */
+	if (fwrt->dump.non_collect_ts_start[id] &&
+	    (time_after(fwrt->dump.non_collect_ts_start[id] + wind_jiff,
+			jiffies)))
+		return true;
+
+	fwrt->dump.non_collect_ts_start[id] = jiffies;
+	return false;
+}
+
+static inline bool
+iwl_fw_dbg_trigger_check_stop(struct iwl_fw_runtime *fwrt,
+			      struct wireless_dev *wdev,
+			      struct iwl_fw_dbg_trigger_tlv *trig)
+{
+	u32 usec = le16_to_cpu(trig->trig_dis_ms) * USEC_PER_MSEC;
+
+	if (wdev && !iwl_fw_dbg_trigger_vif_match(trig, wdev))
+		return false;
+
+	if (iwl_fw_dbg_no_trig_window(fwrt, le32_to_cpu(trig->id), usec)) {
+		IWL_WARN(fwrt, "Trigger %d occurred while no-collect window.\n",
+			 trig->id);
+		return false;
+	}
+
+	return iwl_fw_dbg_trigger_stop_conf_match(fwrt, trig);
+}
+
+static inline struct iwl_fw_dbg_trigger_tlv*
+_iwl_fw_dbg_trigger_on(struct iwl_fw_runtime *fwrt,
+		       struct wireless_dev *wdev,
+		       const enum iwl_fw_dbg_trigger id)
+{
+	struct iwl_fw_dbg_trigger_tlv *trig;
+
+	if (iwl_trans_dbg_ini_valid(fwrt->trans))
+		return NULL;
+
+	if (!iwl_fw_dbg_trigger_enabled(fwrt->fw, id))
+		return NULL;
+
+	trig = _iwl_fw_dbg_get_trigger(fwrt->fw, id);
+
+	if (!iwl_fw_dbg_trigger_check_stop(fwrt, wdev, trig))
+		return NULL;
+
+	return trig;
+}
+
+#define iwl_fw_dbg_trigger_on(fwrt, wdev, id) ({		\
+	BUILD_BUG_ON(!__builtin_constant_p(id));		\
+	BUILD_BUG_ON((id) >= FW_DBG_TRIGGER_MAX);		\
+	_iwl_fw_dbg_trigger_on((fwrt), (wdev), (id));		\
+})
+
+static inline bool
+iwl_fw_ini_trigger_on(struct iwl_fw_runtime *fwrt,
+		      enum iwl_fw_ini_trigger_id id)
+{
+	struct iwl_fw_ini_trigger *trig;
+	u32 usec;
+
+	if (!iwl_trans_dbg_ini_valid(fwrt->trans) ||
+	    id == IWL_FW_TRIGGER_ID_INVALID || id >= IWL_FW_TRIGGER_ID_NUM ||
+	    !fwrt->dump.active_trigs[id].active)
+		return false;
+
+	trig = fwrt->dump.active_trigs[id].trig;
+	usec = le32_to_cpu(trig->ignore_consec);
+
+	if (iwl_fw_dbg_no_trig_window(fwrt, id, usec)) {
+		IWL_WARN(fwrt, "Trigger %d fired in no-collect window\n", id);
+		return false;
+	}
+
+	return true;
+}
+
+static inline void
+_iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime *fwrt,
+				struct wireless_dev *wdev,
+				struct iwl_fw_dbg_trigger_tlv *trigger)
+{
+	if (!trigger)
+		return;
+
+	if (!iwl_fw_dbg_trigger_check_stop(fwrt, wdev, trigger))
+		return;
+
+	iwl_fw_dbg_collect_trig(fwrt, trigger, NULL);
+}
+
+#define iwl_fw_dbg_trigger_simple_stop(fwrt, wdev, trig)	\
+	_iwl_fw_dbg_trigger_simple_stop((fwrt), (wdev),		\
+					iwl_fw_dbg_get_trigger((fwrt)->fw,\
+							       (trig)))
+int iwl_fw_dbg_stop_restart_recording(struct iwl_fw_runtime *fwrt,
+				      struct iwl_fw_dbg_params *params,
+				      bool stop);
+
+#ifdef CPTCFG_IWLWIFI_DEBUGFS
+static inline void iwl_fw_set_dbg_rec_on(struct iwl_fw_runtime *fwrt)
+{
+	if (fwrt->cur_fw_img == IWL_UCODE_REGULAR &&
+	    (fwrt->fw->dbg.dest_tlv ||
+	     fwrt->trans->dbg.ini_dest != IWL_FW_INI_LOCATION_INVALID))
+		fwrt->trans->dbg.rec_on = true;
+}
+#endif
+
+static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt)
+{
+	fwrt->dump.conf = FW_DBG_INVALID;
+}
+
+void iwl_fw_error_dump_wk(struct work_struct *work);
+
+static inline bool iwl_fw_dbg_type_on(struct iwl_fw_runtime *fwrt, u32 type)
+{
+	return (fwrt->fw->dbg.dump_mask & BIT(type));
+}
+
+static inline bool iwl_fw_dbg_is_d3_debug_enabled(struct iwl_fw_runtime *fwrt)
+{
+	return fw_has_capa(&fwrt->fw->ucode_capa,
+			   IWL_UCODE_TLV_CAPA_D3_DEBUG) &&
+		fwrt->trans->cfg->d3_debug_data_length && fwrt->ops &&
+		fwrt->ops->d3_debug_enable &&
+		fwrt->ops->d3_debug_enable(fwrt->ops_ctx) &&
+		iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_D3_DEBUG_DATA);
+}
+
+static inline bool iwl_fw_dbg_is_paging_enabled(struct iwl_fw_runtime *fwrt)
+{
+	return iwl_fw_dbg_type_on(fwrt, IWL_FW_ERROR_DUMP_PAGING) &&
+		!fwrt->trans->trans_cfg->gen2 &&
+		fwrt->cur_fw_img < IWL_UCODE_TYPE_MAX &&
+		fwrt->fw->img[fwrt->cur_fw_img].paging_mem_size &&
+		fwrt->fw_paging_db[0].fw_paging_block;
+}
+
+void iwl_fw_dbg_read_d3_debug_data(struct iwl_fw_runtime *fwrt);
+
+static inline void iwl_fw_flush_dumps(struct iwl_fw_runtime *fwrt)
+{
+	int i;
+
+	iwl_dbg_tlv_del_timers(fwrt->trans);
+	for (i = 0; i < IWL_FW_RUNTIME_DUMP_WK_NUM; i++) {
+		flush_delayed_work(&fwrt->dump.wks[i].wk);
+		fwrt->dump.wks[i].ini_trig_id = IWL_FW_TRIGGER_ID_INVALID;
+	}
+}
+
+#ifdef CPTCFG_IWLWIFI_DEBUGFS
+static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt)
+{
+	fwrt->timestamp.delay = 0;
+	cancel_delayed_work_sync(&fwrt->timestamp.wk);
+}
+
+void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt, u32 delay);
+
+static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt)
+{
+	cancel_delayed_work_sync(&fwrt->timestamp.wk);
+}
+
+static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt)
+{
+	if (!fwrt->timestamp.delay)
+		return;
+
+	schedule_delayed_work(&fwrt->timestamp.wk,
+			      round_jiffies_relative(fwrt->timestamp.delay));
+}
+
+#else
+
+static inline void iwl_fw_cancel_timestamp(struct iwl_fw_runtime *fwrt) {}
+
+static inline void iwl_fw_trigger_timestamp(struct iwl_fw_runtime *fwrt,
+					    u32 delay) {}
+
+static inline void iwl_fw_suspend_timestamp(struct iwl_fw_runtime *fwrt) {}
+
+static inline void iwl_fw_resume_timestamp(struct iwl_fw_runtime *fwrt) {}
+
+#endif /* CPTCFG_IWLWIFI_DEBUGFS */
+
+void iwl_fw_dbg_stop_sync(struct iwl_fw_runtime *fwrt);
+
+static inline void iwl_fw_lmac1_set_alive_err_table(struct iwl_trans *trans,
+						    u32 lmac_error_event_table)
+{
+	if (!(trans->dbg.error_event_table_tlv_status &
+	      IWL_ERROR_EVENT_TABLE_LMAC1) ||
+	    WARN_ON(trans->dbg.lmac_error_event_table[0] !=
+		    lmac_error_event_table))
+		trans->dbg.lmac_error_event_table[0] = lmac_error_event_table;
+}
+
+static inline void iwl_fw_umac_set_alive_err_table(struct iwl_trans *trans,
+						   u32 umac_error_event_table)
+{
+	if (!(trans->dbg.error_event_table_tlv_status &
+	      IWL_ERROR_EVENT_TABLE_UMAC) ||
+	    WARN_ON(trans->dbg.umac_error_event_table !=
+		    umac_error_event_table))
+		trans->dbg.umac_error_event_table = umac_error_event_table;
+}
+
+static inline void iwl_fw_error_collect(struct iwl_fw_runtime *fwrt)
+{
+	if (iwl_trans_dbg_ini_valid(fwrt->trans) && fwrt->trans->dbg.hw_error) {
+		_iwl_fw_dbg_ini_collect(fwrt, IWL_FW_TRIGGER_ID_FW_HW_ERROR);
+		fwrt->trans->dbg.hw_error = false;
+	} else {
+		iwl_fw_dbg_collect_desc(fwrt, &iwl_dump_desc_assert, false, 0);
+	}
+}
+
+void iwl_fw_error_print_fseq_regs(struct iwl_fw_runtime *fwrt);
+
+static inline void iwl_fwrt_update_fw_versions(struct iwl_fw_runtime *fwrt,
+					       struct iwl_lmac_alive *lmac,
+					       struct iwl_umac_alive *umac)
+{
+	if (lmac) {
+		fwrt->dump.fw_ver.type = lmac->ver_type;
+		fwrt->dump.fw_ver.subtype = lmac->ver_subtype;
+		fwrt->dump.fw_ver.lmac_major = le32_to_cpu(lmac->ucode_major);
+		fwrt->dump.fw_ver.lmac_minor = le32_to_cpu(lmac->ucode_minor);
+	}
+
+	if (umac) {
+		fwrt->dump.fw_ver.umac_major = le32_to_cpu(umac->umac_major);
+		fwrt->dump.fw_ver.umac_minor = le32_to_cpu(umac->umac_minor);
+	}
+}
+#endif  /* __iwl_fw_dbg_h__ */