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cnss2: Export remote memory info

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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: Kai Liu <kaliu@codeaurora.org>
This commit is contained in:
Kai Liu 2021-02-10 00:09:10 +08:00
commit 98eb7da2c0
2 changed files with 93 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

76
drivers/net/wireless/cnss2/main.c
View file

@ -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)
{

19
include/net/cnss2.h
View file

@ -1,5 +1,5 @@
/* 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 */