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fpga: dfl: store FIU type in feature platform data

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Remove the local function feature_dev_id_type() in favor of persisting
the FIU type in struct dfl_feature_platform_data. Add type to struct
build_feature_devs_info and drop argument to build_info_create_dev().

Signed-off-by: Peter Colberg <peter.colberg@intel.com>
Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com>
Reviewed-by: Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@linux.intel.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20241120011035.230574-8-peter.colberg@intel.com
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
This commit is contained in:
Peter Colberg
2024-11-19 20:10:23 -05:00
committed by Xu Yilun
parent fccfc01148
commit 975a7301f5
2 changed files with 29 additions and 29 deletions
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55
drivers/fpga/dfl.c
View File

@@ -119,17 +119,6 @@ static void dfl_id_free(enum dfl_id_type type, int id)
mutex_unlock(&dfl_id_mutex);
}
static enum dfl_id_type feature_dev_id_type(struct platform_device *pdev)
{
int i;
for (i = 0; i < ARRAY_SIZE(dfl_devs); i++)
if (!strcmp(dfl_devs[i].name, pdev->name))
return i;
return DFL_ID_MAX;
}
static enum dfl_id_type dfh_id_to_type(u16 id)
{
int i;
@@ -379,7 +368,7 @@ dfl_dev_add(struct dfl_feature_platform_data *pdata,
if (ret)
goto put_dev;
ddev->type = feature_dev_id_type(pdev);
ddev->type = pdata->type;
ddev->feature_id = feature->id;
ddev->revision = feature->revision;
ddev->dfh_version = feature->dfh_version;
@@ -693,6 +682,7 @@ EXPORT_SYMBOL_GPL(dfl_fpga_dev_ops_unregister);
* @irq_table: Linux IRQ numbers for all irqs, indexed by local irq index of
* this device.
* @feature_dev: current feature device.
* @type: the current FIU type.
* @ioaddr: header register region address of current FIU in enumeration.
* @start: register resource start of current FIU.
* @len: max register resource length of current FIU.
@@ -706,6 +696,7 @@ struct build_feature_devs_info {
int *irq_table;
struct platform_device *feature_dev;
enum dfl_id_type type;
void __iomem *ioaddr;
resource_size_t start;
resource_size_t len;
@@ -754,11 +745,10 @@ binfo_create_feature_dev_data(struct build_feature_devs_info *binfo)
{
struct platform_device *fdev = binfo->feature_dev;
struct dfl_feature_platform_data *pdata;
enum dfl_id_type type = binfo->type;
struct dfl_feature_info *finfo, *p;
enum dfl_id_type type;
int index = 0, res_idx = 0;
type = feature_dev_id_type(fdev);
if (WARN_ON_ONCE(type >= DFL_ID_MAX))
return ERR_PTR(-EINVAL);
@@ -773,6 +763,7 @@ binfo_create_feature_dev_data(struct build_feature_devs_info *binfo)
return ERR_PTR(-ENOMEM);
pdata->dev = fdev;
pdata->type = type;
pdata->num = binfo->feature_num;
pdata->dfl_cdev = binfo->cdev;
pdata->id = FEATURE_DEV_ID_UNUSED;
@@ -859,14 +850,11 @@ binfo_create_feature_dev_data(struct build_feature_devs_info *binfo)
}
static int
build_info_create_dev(struct build_feature_devs_info *binfo,
enum dfl_id_type type)
build_info_create_dev(struct build_feature_devs_info *binfo)
{
enum dfl_id_type type = binfo->type;
struct platform_device *fdev;
if (type >= DFL_ID_MAX)
return -EINVAL;
/*
* we use -ENODEV as the initialization indicator which indicates
* whether the id need to be reclaimed
@@ -903,7 +891,7 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo)
if (ret)
return ret;
if (feature_dev_id_type(binfo->feature_dev) == PORT_ID)
if (binfo->type == PORT_ID)
dfl_fpga_cdev_add_port_data(binfo->cdev, pdata);
else
binfo->cdev->fme_dev = get_device(&binfo->feature_dev->dev);
@@ -917,6 +905,9 @@ static int build_info_commit_dev(struct build_feature_devs_info *binfo)
*/
binfo->feature_dev = NULL;
/* reset the binfo for next FIU */
binfo->type = DFL_ID_MAX;
return 0;
}
@@ -929,8 +920,7 @@ static void build_info_free(struct build_feature_devs_info *binfo)
* build_info_create_dev()
*/
if (binfo->feature_dev && binfo->feature_dev->id >= 0) {
dfl_id_free(feature_dev_id_type(binfo->feature_dev),
binfo->feature_dev->id);
dfl_id_free(binfo->type, binfo->feature_dev->id);
list_for_each_entry_safe(finfo, p, &binfo->sub_features, node) {
list_del(&finfo->node);
@@ -1028,7 +1018,7 @@ static int parse_feature_irqs(struct build_feature_devs_info *binfo,
* Instead, features with interrupt functionality provide
* the information in feature specific registers.
*/
type = feature_dev_id_type(binfo->feature_dev);
type = binfo->type;
if (type == PORT_ID) {
switch (fid) {
case PORT_FEATURE_ID_UINT:
@@ -1230,7 +1220,7 @@ static int parse_feature_afu(struct build_feature_devs_info *binfo,
return -EINVAL;
}
switch (feature_dev_id_type(binfo->feature_dev)) {
switch (binfo->type) {
case PORT_ID:
return parse_feature_port_afu(binfo, ofst);
default:
@@ -1276,6 +1266,7 @@ static void build_info_complete(struct build_feature_devs_info *binfo)
static int parse_feature_fiu(struct build_feature_devs_info *binfo,
resource_size_t ofst)
{
enum dfl_id_type type;
int ret = 0;
u32 offset;
u16 id;
@@ -1297,8 +1288,14 @@ static int parse_feature_fiu(struct build_feature_devs_info *binfo,
v = readq(binfo->ioaddr + DFH);
id = FIELD_GET(DFH_ID, v);
type = dfh_id_to_type(id);
if (type >= DFL_ID_MAX)
return -EINVAL;
binfo->type = type;
/* create platform device for dfl feature dev */
ret = build_info_create_dev(binfo, dfh_id_to_type(id));
ret = build_info_create_dev(binfo);
if (ret)
return ret;
@@ -1518,13 +1515,13 @@ EXPORT_SYMBOL_GPL(dfl_fpga_enum_info_add_irq);
static int remove_feature_dev(struct device *dev, void *data)
{
struct dfl_feature_platform_data *pdata = dev_get_platdata(dev);
struct platform_device *pdev = to_platform_device(dev);
enum dfl_id_type type = feature_dev_id_type(pdev);
int id = pdev->id;
platform_device_unregister(pdev);
dfl_id_free(type, id);
dfl_id_free(pdata->type, id);
return 0;
}
@@ -1576,6 +1573,7 @@ dfl_fpga_feature_devs_enumerate(struct dfl_fpga_enum_info *info)
goto unregister_region_exit;
}
binfo->type = DFL_ID_MAX;
binfo->dev = info->dev;
binfo->cdev = cdev;
@@ -1628,8 +1626,7 @@ void dfl_fpga_feature_devs_remove(struct dfl_fpga_cdev *cdev)
/* remove released ports */
if (!device_is_registered(&port_dev->dev)) {
dfl_id_free(feature_dev_id_type(port_dev),
port_dev->id);
dfl_id_free(pdata->type, port_dev->id);
platform_device_put(port_dev);
}

3
drivers/fpga/dfl.h
View File

@@ -17,6 +17,7 @@
#include <linux/bitfield.h>
#include <linux/cdev.h>
#include <linux/delay.h>
#include <linux/dfl.h>
#include <linux/eventfd.h>
#include <linux/fs.h>
#include <linux/interrupt.h>
@@ -308,6 +309,7 @@ struct dfl_feature {
* @lock: mutex to protect platform data.
* @cdev: cdev of feature dev.
* @dev: ptr to platform device linked with this platform data.
* @type: type of DFL FIU for the feature dev. See enum dfl_id_type.
* @dfl_cdev: ptr to container device.
* @id: id used for this feature device.
* @disable_count: count for port disable.
@@ -322,6 +324,7 @@ struct dfl_feature_platform_data {
struct mutex lock;
struct cdev cdev;
struct platform_device *dev;
enum dfl_id_type type;
struct dfl_fpga_cdev *dfl_cdev;
int id;
unsigned int disable_count;