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path: root/drivers/fpga/dfl-afu-main.c
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Diffstat (limited to 'drivers/fpga/dfl-afu-main.c')
-rw-r--r--drivers/fpga/dfl-afu-main.c76
1 files changed, 40 insertions, 36 deletions
diff --git a/drivers/fpga/dfl-afu-main.c b/drivers/fpga/dfl-afu-main.c
index 24eb41519b7b..12bce9f5444a 100644
--- a/drivers/fpga/dfl-afu-main.c
+++ b/drivers/fpga/dfl-afu-main.c
@@ -26,7 +26,7 @@
/**
* __afu_port_enable - enable a port by clear reset
- * @pdev: port platform device.
+ * @pdata: feature device platform data
*
* Enable Port by clear the port soft reset bit, which is set by default.
* The AFU is unable to respond to any MMIO access while in reset.
@@ -35,9 +35,8 @@
*
* The caller needs to hold lock for protection.
*/
-int __afu_port_enable(struct platform_device *pdev)
+int __afu_port_enable(struct dfl_feature_platform_data *pdata)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
void __iomem *base;
u64 v;
@@ -46,7 +45,7 @@ int __afu_port_enable(struct platform_device *pdev)
if (--pdata->disable_count != 0)
return 0;
- base = dfl_get_feature_ioaddr_by_id(&pdev->dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
/* Clear port soft reset */
v = readq(base + PORT_HDR_CTRL);
@@ -70,22 +69,21 @@ int __afu_port_enable(struct platform_device *pdev)
/**
* __afu_port_disable - disable a port by hold reset
- * @pdev: port platform device.
+ * @pdata: feature device platform data
*
* Disable Port by setting the port soft reset bit, it puts the port into reset.
*
* The caller needs to hold lock for protection.
*/
-int __afu_port_disable(struct platform_device *pdev)
+int __afu_port_disable(struct dfl_feature_platform_data *pdata)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
void __iomem *base;
u64 v;
if (pdata->disable_count++ != 0)
return 0;
- base = dfl_get_feature_ioaddr_by_id(&pdev->dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
/* Set port soft reset */
v = readq(base + PORT_HDR_CTRL);
@@ -120,15 +118,15 @@ int __afu_port_disable(struct platform_device *pdev)
* (disabled). Any attempts on MMIO access to AFU while in reset, will
* result errors reported via port error reporting sub feature (if present).
*/
-static int __port_reset(struct platform_device *pdev)
+static int __port_reset(struct dfl_feature_platform_data *pdata)
{
int ret;
- ret = __afu_port_disable(pdev);
+ ret = __afu_port_disable(pdata);
if (ret)
return ret;
- return __afu_port_enable(pdev);
+ return __afu_port_enable(pdata);
}
static int port_reset(struct platform_device *pdev)
@@ -137,17 +135,17 @@ static int port_reset(struct platform_device *pdev)
int ret;
mutex_lock(&pdata->lock);
- ret = __port_reset(pdev);
+ ret = __port_reset(pdata);
mutex_unlock(&pdata->lock);
return ret;
}
-static int port_get_id(struct platform_device *pdev)
+static int port_get_id(struct dfl_feature_platform_data *pdata)
{
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(&pdev->dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
return FIELD_GET(PORT_CAP_PORT_NUM, readq(base + PORT_HDR_CAP));
}
@@ -155,7 +153,8 @@ static int port_get_id(struct platform_device *pdev)
static ssize_t
id_show(struct device *dev, struct device_attribute *attr, char *buf)
{
- int id = port_get_id(to_platform_device(dev));
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
+ int id = port_get_id(pdata);
return scnprintf(buf, PAGE_SIZE, "%d\n", id);
}
@@ -168,7 +167,7 @@ ltr_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_CTRL);
@@ -189,7 +188,7 @@ ltr_store(struct device *dev, struct device_attribute *attr,
if (kstrtobool(buf, &ltr))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_CTRL);
@@ -209,7 +208,7 @@ ap1_event_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_STS);
@@ -229,7 +228,7 @@ ap1_event_store(struct device *dev, struct device_attribute *attr,
if (kstrtobool(buf, &clear) || !clear)
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(PORT_STS_AP1_EVT, base + PORT_HDR_STS);
@@ -247,7 +246,7 @@ ap2_event_show(struct device *dev, struct device_attribute *attr,
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_STS);
@@ -267,7 +266,7 @@ ap2_event_store(struct device *dev, struct device_attribute *attr,
if (kstrtobool(buf, &clear) || !clear)
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(PORT_STS_AP2_EVT, base + PORT_HDR_STS);
@@ -284,7 +283,7 @@ power_state_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 v;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
v = readq(base + PORT_HDR_STS);
@@ -305,7 +304,7 @@ userclk_freqcmd_store(struct device *dev, struct device_attribute *attr,
if (kstrtou64(buf, 0, &userclk_freq_cmd))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(userclk_freq_cmd, base + PORT_HDR_USRCLK_CMD0);
@@ -326,7 +325,7 @@ userclk_freqcntrcmd_store(struct device *dev, struct device_attribute *attr,
if (kstrtou64(buf, 0, &userclk_freqcntr_cmd))
return -EINVAL;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
writeq(userclk_freqcntr_cmd, base + PORT_HDR_USRCLK_CMD1);
@@ -344,7 +343,7 @@ userclk_freqsts_show(struct device *dev, struct device_attribute *attr,
u64 userclk_freqsts;
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
userclk_freqsts = readq(base + PORT_HDR_USRCLK_STS0);
@@ -362,7 +361,7 @@ userclk_freqcntrsts_show(struct device *dev, struct device_attribute *attr,
u64 userclk_freqcntrsts;
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
mutex_lock(&pdata->lock);
userclk_freqcntrsts = readq(base + PORT_HDR_USRCLK_STS1);
@@ -389,11 +388,13 @@ static struct attribute *port_hdr_attrs[] = {
static umode_t port_hdr_attrs_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
+ struct dfl_feature_platform_data *pdata;
struct device *dev = kobj_to_dev(kobj);
umode_t mode = attr->mode;
void __iomem *base;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_HEADER);
+ pdata = dev_get_platdata(dev);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_HEADER);
if (dfl_feature_revision(base) > 0) {
/*
@@ -462,7 +463,7 @@ afu_id_show(struct device *dev, struct device_attribute *attr, char *buf)
void __iomem *base;
u64 guidl, guidh;
- base = dfl_get_feature_ioaddr_by_id(dev, PORT_FEATURE_ID_AFU);
+ base = dfl_get_feature_ioaddr_by_id(pdata, PORT_FEATURE_ID_AFU);
mutex_lock(&pdata->lock);
if (pdata->disable_count) {
@@ -486,13 +487,15 @@ static struct attribute *port_afu_attrs[] = {
static umode_t port_afu_attrs_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
+ struct dfl_feature_platform_data *pdata;
struct device *dev = kobj_to_dev(kobj);
+ pdata = dev_get_platdata(dev);
/*
* sysfs entries are visible only if related private feature is
* enumerated.
*/
- if (!dfl_get_feature_by_id(dev, PORT_FEATURE_ID_AFU))
+ if (!dfl_get_feature_by_id(pdata, PORT_FEATURE_ID_AFU))
return 0;
return attr->mode;
@@ -506,9 +509,10 @@ static const struct attribute_group port_afu_group = {
static int port_afu_init(struct platform_device *pdev,
struct dfl_feature *feature)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *res = &pdev->resource[feature->resource_index];
- return afu_mmio_region_add(dev_get_platdata(&pdev->dev),
+ return afu_mmio_region_add(pdata,
DFL_PORT_REGION_INDEX_AFU,
resource_size(res), res->start,
DFL_PORT_REGION_MMAP | DFL_PORT_REGION_READ |
@@ -527,9 +531,10 @@ static const struct dfl_feature_ops port_afu_ops = {
static int port_stp_init(struct platform_device *pdev,
struct dfl_feature *feature)
{
+ struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct resource *res = &pdev->resource[feature->resource_index];
- return afu_mmio_region_add(dev_get_platdata(&pdev->dev),
+ return afu_mmio_region_add(pdata,
DFL_PORT_REGION_INDEX_STP,
resource_size(res), res->start,
DFL_PORT_REGION_MMAP | DFL_PORT_REGION_READ |
@@ -630,7 +635,7 @@ static int afu_release(struct inode *inode, struct file *filp)
dfl_fpga_dev_for_each_feature(pdata, feature)
dfl_fpga_set_irq_triggers(feature, 0,
feature->nr_irqs, NULL);
- __port_reset(pdev);
+ __port_reset(pdata);
afu_dma_region_destroy(pdata);
}
mutex_unlock(&pdata->lock);
@@ -878,16 +883,15 @@ static int afu_dev_destroy(struct platform_device *pdev)
return 0;
}
-static int port_enable_set(struct platform_device *pdev, bool enable)
+static int port_enable_set(struct dfl_feature_platform_data *pdata, bool enable)
{
- struct dfl_feature_platform_data *pdata = dev_get_platdata(&pdev->dev);
int ret;
mutex_lock(&pdata->lock);
if (enable)
- ret = __afu_port_enable(pdev);
+ ret = __afu_port_enable(pdata);
else
- ret = __afu_port_disable(pdev);
+ ret = __afu_port_disable(pdata);
mutex_unlock(&pdata->lock);
return ret;
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-09-22 05:06:25 +0000