Merge "soc: qcom: access smp2p_smem structure with I/O function"

/* drivers/soc/qcom/smp2p.c

 *

 * Copyright (c) 2013-2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2013-2016, 2019, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

		int local_pid, int remote_pid,

		uint32_t features, uint32_t version)

{

	header_ptr->magic = SMP2P_MAGIC;

	SMP2P_SET_LOCAL_PID(header_ptr->rem_loc_proc_id, local_pid);

	SMP2P_SET_REMOTE_PID(header_ptr->rem_loc_proc_id, remote_pid);

	SMP2P_SET_FEATURES(header_ptr->feature_version, features);

	SMP2P_SET_ENT_TOTAL(header_ptr->valid_total_ent, SMP2P_MAX_ENTRY);

	SMP2P_SET_ENT_VALID(header_ptr->valid_total_ent, 0);

	header_ptr->flags = 0;

	uint32_t rem_loc_proc_id = 0;

	uint32_t valid_total_ent = 0;

	uint32_t feature_version = 0;

	writel_relaxed(SMP2P_MAGIC, &header_ptr->magic);

	SMP2P_SET_LOCAL_PID(rem_loc_proc_id, local_pid);

	SMP2P_SET_REMOTE_PID(rem_loc_proc_id, remote_pid);

	writel_relaxed(rem_loc_proc_id, &header_ptr->rem_loc_proc_id);

	SMP2P_SET_FEATURES(feature_version, features);

	writel_relaxed(feature_version, &header_ptr->feature_version);

	SMP2P_SET_ENT_TOTAL(valid_total_ent, SMP2P_MAX_ENTRY);

	SMP2P_SET_ENT_VALID(valid_total_ent, 0);

	writel_relaxed(valid_total_ent, &header_ptr->valid_total_ent);

	writel_relaxed(0, &header_ptr->flags);

	/* ensure that all fields are valid before version is written */

	wmb();

	SMP2P_SET_VERSION(header_ptr->feature_version, version);

	SMP2P_SET_VERSION(feature_version, version);

	writel_relaxed(feature_version, &header_ptr->feature_version);

}

/**