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Commit 98eb7da2 authored by Kai Liu's avatar Kai Liu
Browse files

cnss2: Export remote memory info 



CNSS platform driver allocates host DDR memory for device.
This change exports these memory info to q5drv for QDSS streaming
feature.

Change-Id: I053704b0e146f50abd3940a91f2190ee1b2a7fe3
Signed-off-by: default avatarKai Liu <kaliu@codeaurora.org>
parent eca62752

drivers/net/wireless/cnss2/main.c

+76 −0
Original line number Diff line number Diff line
@@ -80,6 +80,82 @@ struct cnss_plat_data *cnss_get_plat_priv(struct platform_device *plat_dev) 
	return plat_env;

}



/**

 * cnss_get_mem_seg_count - Get segment count of memory

 * @type: memory type

 * @seg: segment count

 *

 * Return: 0 on success, negative value on failure

 */

int cnss_get_mem_seg_count(enum cnss_remote_mem_type type, u32 *seg)

{

	struct cnss_plat_data *plat_priv;



	plat_priv = cnss_get_plat_priv(NULL);

	if (!plat_priv)

		return -ENODEV;



	switch (type) {

	case CNSS_REMOTE_MEM_TYPE_FW:

		*seg = plat_priv->fw_mem_seg_len;

		break;

	case CNSS_REMOTE_MEM_TYPE_QDSS:

		*seg = plat_priv->qdss_mem_seg_len;

		break;

	default:

		return -EINVAL;

	}



	return 0;

}

EXPORT_SYMBOL(cnss_get_mem_seg_count);



/**

 * cnss_get_mem_segment_info - Get memory info of different type

 * @type: memory type

 * @segment: array to save the segment info

 * @seg: segment count

 *

 * Return: 0 on success, negative value on failure

 */

int cnss_get_mem_segment_info(enum cnss_remote_mem_type type,

			      struct cnss_mem_segment segment[],

			      u32 segment_count)

{

	struct cnss_plat_data *plat_priv;

	u32 i;



	plat_priv = cnss_get_plat_priv(NULL);

	if (!plat_priv)

		return -ENODEV;



	switch (type) {

	case CNSS_REMOTE_MEM_TYPE_FW:

		if (segment_count > plat_priv->fw_mem_seg_len)

			segment_count = plat_priv->fw_mem_seg_len;

		for (i = 0; i < segment_count; i++) {

			segment[i].size = plat_priv->fw_mem[i].size;

			segment[i].va = plat_priv->fw_mem[i].va;

			segment[i].pa = plat_priv->fw_mem[i].pa;

		}

		break;

	case CNSS_REMOTE_MEM_TYPE_QDSS:

		if (segment_count > plat_priv->qdss_mem_seg_len)

			segment_count = plat_priv->qdss_mem_seg_len;

		for (i = 0; i < segment_count; i++) {

			segment[i].size = plat_priv->qdss_mem[i].size;

			segment[i].va = plat_priv->qdss_mem[i].va;

			segment[i].pa = plat_priv->qdss_mem[i].pa;

		}

		break;

	default:

		return -EINVAL;

	}



	return 0;

}

EXPORT_SYMBOL(cnss_get_mem_segment_info);



static int cnss_pm_notify(struct notifier_block *b,

			  unsigned long event, void *p)

{

include/net/cnss2.h

+17 −2
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0-only */

/* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved. */

/* Copyright (c) 2016-2021, The Linux Foundation. All rights reserved. */



#ifndef _NET_CNSS2_H

#define _NET_CNSS2_H
@@ -169,6 +169,18 @@ enum cnss_recovery_reason { 
	CNSS_REASON_TIMEOUT,

};



enum cnss_remote_mem_type {

	CNSS_REMOTE_MEM_TYPE_FW,

	CNSS_REMOTE_MEM_TYPE_QDSS,

	CNSS_REMOTE_MEM_TYPE_MAX,

};



struct cnss_mem_segment {

	size_t size;

	void *va;

	phys_addr_t pa;

};



extern int cnss_wlan_register_driver(struct cnss_wlan_driver *driver);

extern void cnss_wlan_unregister_driver(struct cnss_wlan_driver *driver);

extern void cnss_device_crashed(struct device *dev);
@@ -241,5 +253,8 @@ extern int cnss_set_fw_log_mode(struct device *dev, uint8_t fw_log_mode); 
extern int cnss_set_pcie_gen_speed(struct device *dev, u8 pcie_gen_speed);

extern int cnss_pci_get_reg_dump(struct device *dev, uint8_t *buffer,

				 uint32_t len);



extern int cnss_get_mem_seg_count(enum cnss_remote_mem_type type, u32 *seg);

extern int cnss_get_mem_segment_info(enum cnss_remote_mem_type type,

				     struct cnss_mem_segment segment[],

				     u32 segment_count);

#endif /* _NET_CNSS2_H */