// SPDX-License-Identifier: GPL-2.0
/*
* Copyright ( C ) 2018 - 2019 , Intel Corporation
*/
#include <linux/arm-smccc.h>
#include <linux/bitfield.h>
#include <linux/completion.h>
#include <linux/kobject.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/firmware/intel/stratix10-svc-client.h>
#include <linux/string.h>
#include <linux/sysfs.h>
#define RSU_STATE_MASK GENMASK_ULL(31 , 0 )
#define RSU_VERSION_MASK GENMASK_ULL(63 , 32 )
#define RSU_ERROR_LOCATION_MASK GENMASK_ULL(31 , 0 )
#define RSU_ERROR_DETAIL_MASK GENMASK_ULL(63 , 32 )
#define RSU_DCMF0_MASK GENMASK_ULL(31 , 0 )
#define RSU_DCMF1_MASK GENMASK_ULL(63 , 32 )
#define RSU_DCMF2_MASK GENMASK_ULL(31 , 0 )
#define RSU_DCMF3_MASK GENMASK_ULL(63 , 32 )
#define RSU_DCMF0_STATUS_MASK GENMASK_ULL(15 , 0 )
#define RSU_DCMF1_STATUS_MASK GENMASK_ULL(31 , 16 )
#define RSU_DCMF2_STATUS_MASK GENMASK_ULL(47 , 32 )
#define RSU_DCMF3_STATUS_MASK GENMASK_ULL(63 , 48 )
#define RSU_TIMEOUT (msecs_to_jiffies(SVC_RSU_REQUEST_TIMEOUT_MS))
#define INVALID_RETRY_COUNTER 0 xFF
#define INVALID_DCMF_VERSION 0 xFF
#define INVALID_DCMF_STATUS 0 xFFFFFFFF
#define INVALID_SPT_ADDRESS 0 x0
#define RSU_GET_SPT_CMD 0 x5A
#define RSU_GET_SPT_RESP_LEN (4 * sizeof (unsigned int ))
typedef void (*rsu_callback)(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data);
/**
* struct stratix10_rsu_priv - rsu data structure
* @ chan : pointer to the allocated service channel
* @ client : active service client
* @ completion : state for callback completion
* @ lock : a mutex to protect callback completion state
* @ status . current_image : address of image currently running in flash
* @ status . fail_image : address of failed image in flash
* @ status . version : the interface version number of RSU firmware
* @ status . state : the state of RSU system
* @ status . error_details : error code
* @ status . error_location : the error offset inside the image that failed
* @ dcmf_version . dcmf0 : Quartus dcmf0 version
* @ dcmf_version . dcmf1 : Quartus dcmf1 version
* @ dcmf_version . dcmf2 : Quartus dcmf2 version
* @ dcmf_version . dcmf3 : Quartus dcmf3 version
* @ dcmf_status . dcmf0 : dcmf0 status
* @ dcmf_status . dcmf1 : dcmf1 status
* @ dcmf_status . dcmf2 : dcmf2 status
* @ dcmf_status . dcmf3 : dcmf3 status
* @ retry_counter : the current image ' s retry counter
* @ max_retry : the preset max retry value
* @ spt0_address : address of spt0
* @ spt1_address : address of spt1
* @ get_spt_response_buf : response from sdm for get_spt command
*/
struct stratix10_rsu_priv {
struct stratix10_svc_chan *chan;
struct stratix10_svc_client client;
struct completion completion;
struct mutex lock;
struct {
unsigned long current_image;
unsigned long fail_image;
unsigned int version;
unsigned int state;
unsigned int error_details;
unsigned int error_location;
} status;
struct {
unsigned int dcmf0;
unsigned int dcmf1;
unsigned int dcmf2;
unsigned int dcmf3;
} dcmf_version;
struct {
unsigned int dcmf0;
unsigned int dcmf1;
unsigned int dcmf2;
unsigned int dcmf3;
} dcmf_status;
unsigned int retry_counter;
unsigned int max_retry;
unsigned long spt0_address;
unsigned long spt1_address;
unsigned int *get_spt_response_buf;
};
/**
* rsu_status_callback ( ) - Status callback from Intel Service Layer
* @ client : pointer to service client
* @ data : pointer to callback data structure
*
* Callback from Intel service layer for RSU status request . Status is
* only updated after a system reboot , so a get updated status call is
* made during driver probe .
*/
static void rsu_status_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
struct arm_smccc_res *res = (struct arm_smccc_res *)data->kaddr1;
if (data->status == BIT(SVC_STATUS_OK)) {
priv->status.version = FIELD_GET(RSU_VERSION_MASK,
res->a2);
priv->status.state = FIELD_GET(RSU_STATE_MASK, res->a2);
priv->status.fail_image = res->a1;
priv->status.current_image = res->a0;
priv->status.error_location =
FIELD_GET(RSU_ERROR_LOCATION_MASK, res->a3);
priv->status.error_details =
FIELD_GET(RSU_ERROR_DETAIL_MASK, res->a3);
} else {
dev_err(client->dev, "COMMAND_RSU_STATUS returned 0x%lX\n" ,
res->a0);
priv->status.version = 0 ;
priv->status.state = 0 ;
priv->status.fail_image = 0 ;
priv->status.current_image = 0 ;
priv->status.error_location = 0 ;
priv->status.error_details = 0 ;
}
complete(&priv->completion);
}
/**
* rsu_command_callback ( ) - Update callback from Intel Service Layer
* @ client : pointer to client
* @ data : pointer to callback data structure
*
* Callback from Intel service layer for RSU commands .
*/
static void rsu_command_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
dev_warn(client->dev, "Secure FW doesn't support notify\n" );
else if (data->status == BIT(SVC_STATUS_ERROR))
dev_err(client->dev, "Failure, returned status is %lu\n" ,
BIT(data->status));
complete(&priv->completion);
}
/**
* rsu_retry_callback ( ) - Callback from Intel service layer for getting
* the current image ' s retry counter from the firmware
* @ client : pointer to client
* @ data : pointer to callback data structure
*
* Callback from Intel service layer for retry counter , which is used by
* user to know how many times the images is still allowed to reload
* itself before giving up and starting RSU fail - over flow .
*/
static void rsu_retry_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
unsigned int *counter = (unsigned int *)data->kaddr1;
if (data->status == BIT(SVC_STATUS_OK))
priv->retry_counter = *counter;
else if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
dev_warn(client->dev, "Secure FW doesn't support retry\n" );
else
dev_err(client->dev, "Failed to get retry counter %lu\n" ,
BIT(data->status));
complete(&priv->completion);
}
/**
* rsu_max_retry_callback ( ) - Callback from Intel service layer for getting
* the max retry value from the firmware
* @ client : pointer to client
* @ data : pointer to callback data structure
*
* Callback from Intel service layer for max retry .
*/
static void rsu_max_retry_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
unsigned int *max_retry = (unsigned int *)data->kaddr1;
if (data->status == BIT(SVC_STATUS_OK))
priv->max_retry = *max_retry;
else if (data->status == BIT(SVC_STATUS_NO_SUPPORT))
dev_warn(client->dev, "Secure FW doesn't support max retry\n" );
else
dev_err(client->dev, "Failed to get max retry %lu\n" ,
BIT(data->status));
complete(&priv->completion);
}
/**
* rsu_dcmf_version_callback ( ) - Callback from Intel service layer for getting
* the DCMF version
* @ client : pointer to client
* @ data : pointer to callback data structure
*
* Callback from Intel service layer for DCMF version number
*/
static void rsu_dcmf_version_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
unsigned long long *value1 = (unsigned long long *)data->kaddr1;
unsigned long long *value2 = (unsigned long long *)data->kaddr2;
if (data->status == BIT(SVC_STATUS_OK)) {
priv->dcmf_version.dcmf0 = FIELD_GET(RSU_DCMF0_MASK, *value1);
priv->dcmf_version.dcmf1 = FIELD_GET(RSU_DCMF1_MASK, *value1);
priv->dcmf_version.dcmf2 = FIELD_GET(RSU_DCMF2_MASK, *value2);
priv->dcmf_version.dcmf3 = FIELD_GET(RSU_DCMF3_MASK, *value2);
} else
dev_err(client->dev, "failed to get DCMF version\n" );
complete(&priv->completion);
}
/**
* rsu_dcmf_status_callback ( ) - Callback from Intel service layer for getting
* the DCMF status
* @ client : pointer to client
* @ data : pointer to callback data structure
*
* Callback from Intel service layer for DCMF status
*/
static void rsu_dcmf_status_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
unsigned long long *value = (unsigned long long *)data->kaddr1;
if (data->status == BIT(SVC_STATUS_OK)) {
priv->dcmf_status.dcmf0 = FIELD_GET(RSU_DCMF0_STATUS_MASK,
*value);
priv->dcmf_status.dcmf1 = FIELD_GET(RSU_DCMF1_STATUS_MASK,
*value);
priv->dcmf_status.dcmf2 = FIELD_GET(RSU_DCMF2_STATUS_MASK,
*value);
priv->dcmf_status.dcmf3 = FIELD_GET(RSU_DCMF3_STATUS_MASK,
*value);
} else
dev_err(client->dev, "failed to get DCMF status\n" );
complete(&priv->completion);
}
static void rsu_get_spt_callback(struct stratix10_svc_client *client,
struct stratix10_svc_cb_data *data)
{
struct stratix10_rsu_priv *priv = client->priv;
unsigned long *mbox_err = (unsigned long *)data->kaddr1;
unsigned long *resp_len = (unsigned long *)data->kaddr2;
if (data->status != BIT(SVC_STATUS_OK) || (*mbox_err) ||
(*resp_len != RSU_GET_SPT_RESP_LEN))
goto error;
priv->spt0_address = priv->get_spt_response_buf[0 ];
priv->spt0_address <<= 32 ;
priv->spt0_address |= priv->get_spt_response_buf[1 ];
priv->spt1_address = priv->get_spt_response_buf[2 ];
priv->spt1_address <<= 32 ;
priv->spt1_address |= priv->get_spt_response_buf[3 ];
goto complete;
error:
dev_err(client->dev, "failed to get SPTs\n" );
complete:
stratix10_svc_free_memory(priv->chan, priv->get_spt_response_buf);
priv->get_spt_response_buf = NULL;
complete(&priv->completion);
}
/**
* rsu_send_msg ( ) - send a message to Intel service layer
* @ priv : pointer to rsu private data
* @ command : RSU status or update command
* @ arg : the request argument , the bitstream address or notify status
* @ callback : function pointer for the callback ( status or update )
*
* Start an Intel service layer transaction to perform the SMC call that
* is necessary to get RSU boot log or set the address of bitstream to
* boot after reboot .
*
* Returns 0 on success or - ETIMEDOUT on error .
*/
static int rsu_send_msg(struct stratix10_rsu_priv *priv,
enum stratix10_svc_command_code command,
unsigned long arg,
rsu_callback callback)
{
struct stratix10_svc_client_msg msg;
int ret;
mutex_lock(&priv->lock);
reinit_completion(&priv->completion);
priv->client.receive_cb = callback;
msg.command = command;
if (arg)
msg.arg[0 ] = arg;
if (command == COMMAND_MBOX_SEND_CMD) {
msg.arg[1 ] = 0 ;
msg.payload = NULL;
msg.payload_length = 0 ;
msg.payload_output = priv->get_spt_response_buf;
msg.payload_length_output = RSU_GET_SPT_RESP_LEN;
}
ret = stratix10_svc_send(priv->chan, &msg);
if (ret < 0 )
goto status_done;
ret = wait_for_completion_interruptible_timeout(&priv->completion,
RSU_TIMEOUT);
if (!ret) {
dev_err(priv->client.dev,
"timeout waiting for SMC call\n" );
ret = -ETIMEDOUT;
goto status_done;
} else if (ret < 0 ) {
dev_err(priv->client.dev,
"error %d waiting for SMC call\n" , ret);
goto status_done;
} else {
ret = 0 ;
}
status_done:
stratix10_svc_done(priv->chan);
mutex_unlock(&priv->lock);
return ret;
}
/*
* This driver exposes some optional features of the Intel Stratix 10 SoC FPGA .
* The sysfs interfaces exposed here are FPGA Remote System Update ( RSU )
* related . They allow user space software to query the configuration system
* status and to request optional reboot behavior specific to Intel FPGAs .
*/
static ssize_t current_image_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08lx\n" , priv->status.current_image);
}
static ssize_t fail_image_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08lx\n" , priv->status.fail_image);
}
static ssize_t version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->status.version);
}
static ssize_t state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->status.state);
}
static ssize_t error_location_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->status.error_location);
}
static ssize_t error_details_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->status.error_details);
}
static ssize_t retry_counter_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->retry_counter);
}
static ssize_t max_retry_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return scnprintf(buf, sizeof (priv->max_retry),
"0x%08x\n" , priv->max_retry);
}
static ssize_t dcmf0_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->dcmf_version.dcmf0);
}
static ssize_t dcmf1_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->dcmf_version.dcmf1);
}
static ssize_t dcmf2_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->dcmf_version.dcmf2);
}
static ssize_t dcmf3_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
return sprintf(buf, "0x%08x\n" , priv->dcmf_version.dcmf3);
}
static ssize_t dcmf0_status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
if (priv->dcmf_status.dcmf0 == INVALID_DCMF_STATUS)
return -EIO;
return sprintf(buf, "0x%08x\n" , priv->dcmf_status.dcmf0);
}
static ssize_t dcmf1_status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
if (priv->dcmf_status.dcmf1 == INVALID_DCMF_STATUS)
return -EIO;
return sprintf(buf, "0x%08x\n" , priv->dcmf_status.dcmf1);
}
static ssize_t dcmf2_status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
if (priv->dcmf_status.dcmf2 == INVALID_DCMF_STATUS)
return -EIO;
return sprintf(buf, "0x%08x\n" , priv->dcmf_status.dcmf2);
}
static ssize_t dcmf3_status_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
if (priv->dcmf_status.dcmf3 == INVALID_DCMF_STATUS)
return -EIO;
return sprintf(buf, "0x%08x\n" , priv->dcmf_status.dcmf3);
}
static ssize_t reboot_image_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
unsigned long address;
int ret;
if (!priv)
return -ENODEV;
ret = kstrtoul(buf, 0 , &address);
if (ret)
return ret;
ret = rsu_send_msg(priv, COMMAND_RSU_UPDATE,
address, rsu_command_callback);
if (ret) {
dev_err(dev, "Error, RSU update returned %i\n" , ret);
return ret;
}
return count;
}
static ssize_t notify_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
unsigned long status;
int ret;
if (!priv)
return -ENODEV;
ret = kstrtoul(buf, 0 , &status);
if (ret)
return ret;
ret = rsu_send_msg(priv, COMMAND_RSU_NOTIFY,
status, rsu_command_callback);
if (ret) {
dev_err(dev, "Error, RSU notify returned %i\n" , ret);
return ret;
}
/* to get the updated state */
ret = rsu_send_msg(priv, COMMAND_RSU_STATUS,
0 , rsu_status_callback);
if (ret) {
dev_err(dev, "Error, getting RSU status %i\n" , ret);
return ret;
}
ret = rsu_send_msg(priv, COMMAND_RSU_RETRY, 0 , rsu_retry_callback);
if (ret) {
dev_err(dev, "Error, getting RSU retry %i\n" , ret);
return ret;
}
return count;
}
static ssize_t spt0_address_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
if (priv->spt0_address == INVALID_SPT_ADDRESS)
return -EIO;
return scnprintf(buf, PAGE_SIZE, "0x%08lx\n" , priv->spt0_address);
}
static ssize_t spt1_address_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct stratix10_rsu_priv *priv = dev_get_drvdata(dev);
if (!priv)
return -ENODEV;
if (priv->spt1_address == INVALID_SPT_ADDRESS)
return -EIO;
return scnprintf(buf, PAGE_SIZE, "0x%08lx\n" , priv->spt1_address);
}
static DEVICE_ATTR_RO(current_image);
static DEVICE_ATTR_RO(fail_image);
static DEVICE_ATTR_RO(state);
static DEVICE_ATTR_RO(version);
static DEVICE_ATTR_RO(error_location);
static DEVICE_ATTR_RO(error_details);
static DEVICE_ATTR_RO(retry_counter);
static DEVICE_ATTR_RO(max_retry);
static DEVICE_ATTR_RO(dcmf0);
static DEVICE_ATTR_RO(dcmf1);
static DEVICE_ATTR_RO(dcmf2);
static DEVICE_ATTR_RO(dcmf3);
static DEVICE_ATTR_RO(dcmf0_status);
static DEVICE_ATTR_RO(dcmf1_status);
static DEVICE_ATTR_RO(dcmf2_status);
static DEVICE_ATTR_RO(dcmf3_status);
static DEVICE_ATTR_WO(reboot_image);
static DEVICE_ATTR_WO(notify);
static DEVICE_ATTR_RO(spt0_address);
static DEVICE_ATTR_RO(spt1_address);
static struct attribute *rsu_attrs[] = {
&dev_attr_current_image.attr,
&dev_attr_fail_image.attr,
&dev_attr_state.attr,
&dev_attr_version.attr,
&dev_attr_error_location.attr,
&dev_attr_error_details.attr,
&dev_attr_retry_counter.attr,
&dev_attr_max_retry.attr,
&dev_attr_dcmf0.attr,
&dev_attr_dcmf1.attr,
&dev_attr_dcmf2.attr,
&dev_attr_dcmf3.attr,
&dev_attr_dcmf0_status.attr,
&dev_attr_dcmf1_status.attr,
&dev_attr_dcmf2_status.attr,
&dev_attr_dcmf3_status.attr,
&dev_attr_reboot_image.attr,
&dev_attr_notify.attr,
&dev_attr_spt0_address.attr,
&dev_attr_spt1_address.attr,
NULL
};
ATTRIBUTE_GROUPS(rsu);
static int stratix10_rsu_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct stratix10_rsu_priv *priv;
int ret;
priv = devm_kzalloc(dev, sizeof (*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->client.dev = dev;
priv->client.receive_cb = NULL;
priv->client.priv = priv;
priv->status.current_image = 0 ;
priv->status.fail_image = 0 ;
priv->status.error_location = 0 ;
priv->status.error_details = 0 ;
priv->status.version = 0 ;
priv->status.state = 0 ;
priv->retry_counter = INVALID_RETRY_COUNTER;
priv->dcmf_version.dcmf0 = INVALID_DCMF_VERSION;
priv->dcmf_version.dcmf1 = INVALID_DCMF_VERSION;
priv->dcmf_version.dcmf2 = INVALID_DCMF_VERSION;
priv->dcmf_version.dcmf3 = INVALID_DCMF_VERSION;
priv->dcmf_status.dcmf0 = INVALID_DCMF_STATUS;
priv->dcmf_status.dcmf1 = INVALID_DCMF_STATUS;
priv->dcmf_status.dcmf2 = INVALID_DCMF_STATUS;
priv->dcmf_status.dcmf3 = INVALID_DCMF_STATUS;
priv->max_retry = INVALID_RETRY_COUNTER;
priv->spt0_address = INVALID_SPT_ADDRESS;
priv->spt1_address = INVALID_SPT_ADDRESS;
mutex_init(&priv->lock);
priv->chan = stratix10_svc_request_channel_byname(&priv->client,
SVC_CLIENT_RSU);
if (IS_ERR(priv->chan)) {
dev_err(dev, "couldn't get service channel %s\n" ,
SVC_CLIENT_RSU);
return PTR_ERR(priv->chan);
}
init_completion(&priv->completion);
platform_set_drvdata(pdev, priv);
/* get the initial state from firmware */
ret = rsu_send_msg(priv, COMMAND_RSU_STATUS,
0 , rsu_status_callback);
if (ret) {
dev_err(dev, "Error, getting RSU status %i\n" , ret);
stratix10_svc_free_channel(priv->chan);
}
/* get DCMF version from firmware */
ret = rsu_send_msg(priv, COMMAND_RSU_DCMF_VERSION,
0 , rsu_dcmf_version_callback);
if (ret) {
dev_err(dev, "Error, getting DCMF version %i\n" , ret);
stratix10_svc_free_channel(priv->chan);
}
ret = rsu_send_msg(priv, COMMAND_RSU_DCMF_STATUS,
0 , rsu_dcmf_status_callback);
if (ret) {
dev_err(dev, "Error, getting DCMF status %i\n" , ret);
stratix10_svc_free_channel(priv->chan);
}
ret = rsu_send_msg(priv, COMMAND_RSU_RETRY, 0 , rsu_retry_callback);
if (ret) {
dev_err(dev, "Error, getting RSU retry %i\n" , ret);
stratix10_svc_free_channel(priv->chan);
}
ret = rsu_send_msg(priv, COMMAND_RSU_MAX_RETRY, 0 ,
rsu_max_retry_callback);
if (ret) {
dev_err(dev, "Error, getting RSU max retry %i\n" , ret);
stratix10_svc_free_channel(priv->chan);
}
priv->get_spt_response_buf =
stratix10_svc_allocate_memory(priv->chan, RSU_GET_SPT_RESP_LEN);
if (IS_ERR(priv->get_spt_response_buf)) {
dev_err(dev, "failed to allocate get spt buffer\n" );
} else {
ret = rsu_send_msg(priv, COMMAND_MBOX_SEND_CMD,
RSU_GET_SPT_CMD, rsu_get_spt_callback);
if (ret) {
dev_err(dev, "Error, getting SPT table %i\n" , ret);
stratix10_svc_free_channel(priv->chan);
}
}
return ret;
}
static void stratix10_rsu_remove(struct platform_device *pdev)
{
struct stratix10_rsu_priv *priv = platform_get_drvdata(pdev);
stratix10_svc_free_channel(priv->chan);
}
static struct platform_driver stratix10_rsu_driver = {
.probe = stratix10_rsu_probe,
.remove = stratix10_rsu_remove,
.driver = {
.name = "stratix10-rsu" ,
.dev_groups = rsu_groups,
},
};
module_platform_driver(stratix10_rsu_driver);
MODULE_LICENSE("GPL v2" );
MODULE_DESCRIPTION("Intel Remote System Update Driver" );
MODULE_AUTHOR("Richard Gong <richard.gong@intel.com>" );
Messung V0.5 in Prozent C=95 H=98 G=96
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-09-28)
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