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platform/x86/amd/hsmp: Change generic plat_dev name to hsmp_pdev

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plat_dev is a commonly used variable name, since its made as extern now,
change it to more specific name.
Also change miscdevice hsmp_device to mdev.

Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Reviewed-by: Naveen Krishna Chatradhi <naveenkrishna.chatradhi@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20241021111428.2676884-7-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Suma Hegde 2024-10-21 11:14:24 +00:00 committed by Ilpo Järvinen
parent 969f915473
commit 8e75dff56e
No known key found for this signature in database
GPG Key ID: 59AC4F6153E5CE31
4 changed files with 41 additions and 41 deletions
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6
drivers/platform/x86/amd/hsmp/acpi.c
View File

@ -194,13 +194,13 @@ static int hsmp_read_acpi_crs(struct hsmp_socket *sock)
/* Parse the ACPI table to read the data */
static int hsmp_parse_acpi_table(struct device *dev, u16 sock_ind)
{
struct hsmp_socket *sock = &plat_dev.sock[sock_ind];
struct hsmp_socket *sock = &hsmp_pdev.sock[sock_ind];
int ret;
sock->sock_ind = sock_ind;
sock->dev = dev;
sock->amd_hsmp_rdwr = amd_hsmp_acpi_rdwr;
plat_dev.is_acpi_device = true;
hsmp_pdev.is_acpi_device = true;
sema_init(&sock->hsmp_sem, 1);
@ -244,7 +244,7 @@ int init_acpi(struct device *dev)
ret = hsmp_get_uid(dev, &sock_ind);
if (ret)
return ret;
if (sock_ind >= plat_dev.num_sockets)
if (sock_ind >= hsmp_pdev.num_sockets)
return -EINVAL;
ret = hsmp_parse_acpi_table(dev, sock_ind);

60
drivers/platform/x86/amd/hsmp/hsmp.c
View File

@ -39,7 +39,7 @@
#define HSMP_WR true
#define HSMP_RD false
struct hsmp_plat_device plat_dev;
struct hsmp_plat_device hsmp_pdev;
/*
* Send a message to the HSMP port via PCI-e config space registers
@ -176,9 +176,9 @@ int hsmp_send_message(struct hsmp_message *msg)
if (ret)
return ret;
if (!plat_dev.sock || msg->sock_ind >= plat_dev.num_sockets)
if (!hsmp_pdev.sock || msg->sock_ind >= hsmp_pdev.num_sockets)
return -ENODEV;
sock = &plat_dev.sock[msg->sock_ind];
sock = &hsmp_pdev.sock[msg->sock_ind];
/*
* The time taken by smu operation to complete is between
@ -219,7 +219,7 @@ int hsmp_test(u16 sock_ind, u32 value)
/* Check the response value */
if (msg.args[0] != (value + 1)) {
dev_err(plat_dev.sock[sock_ind].dev,
dev_err(hsmp_pdev.sock[sock_ind].dev,
"Socket %d test message failed, Expected 0x%08X, received 0x%08X\n",
sock_ind, (value + 1), msg.args[0]);
return -EBADE;
@ -320,7 +320,7 @@ ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj,
static int hsmp_get_tbl_dram_base(u16 sock_ind)
{
struct hsmp_socket *sock = &plat_dev.sock[sock_ind];
struct hsmp_socket *sock = &hsmp_pdev.sock[sock_ind];
struct hsmp_message msg = { 0 };
phys_addr_t dram_addr;
int ret;
@ -354,7 +354,7 @@ static int hsmp_get_tbl_dram_base(u16 sock_ind)
umode_t hsmp_is_sock_attr_visible(struct kobject *kobj,
struct bin_attribute *battr, int id)
{
if (plat_dev.proto_ver == HSMP_PROTO_VER6)
if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6)
return battr->attr.mode;
else
return 0;
@ -362,17 +362,17 @@ umode_t hsmp_is_sock_attr_visible(struct kobject *kobj,
static int hsmp_init_metric_tbl_bin_attr(struct bin_attribute **hattrs, u16 sock_ind)
{
struct bin_attribute *hattr = &plat_dev.sock[sock_ind].hsmp_attr;
struct bin_attribute *hattr = &hsmp_pdev.sock[sock_ind].hsmp_attr;
sysfs_bin_attr_init(hattr);
hattr->attr.name = HSMP_METRICS_TABLE_NAME;
hattr->attr.mode = 0444;
hattr->read = hsmp_metric_tbl_read;
hattr->size = sizeof(struct hsmp_metric_table);
hattr->private = &plat_dev.sock[sock_ind];
hattr->private = &hsmp_pdev.sock[sock_ind];
hattrs[0] = hattr;
if (plat_dev.proto_ver == HSMP_PROTO_VER6)
if (hsmp_pdev.proto_ver == HSMP_PROTO_VER6)
return hsmp_get_tbl_dram_base(sock_ind);
else
return 0;
@ -409,7 +409,7 @@ int hsmp_cache_proto_ver(u16 sock_ind)
ret = hsmp_send_message(&msg);
if (!ret)
plat_dev.proto_ver = msg.args[0];
hsmp_pdev.proto_ver = msg.args[0];
return ret;
}
@ -441,11 +441,11 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev)
* Hence allocate memory for all the sockets at once instead of allocating
* on each probe.
*/
if (!plat_dev.is_probed) {
plat_dev.sock = devm_kcalloc(&pdev->dev, plat_dev.num_sockets,
sizeof(*plat_dev.sock),
GFP_KERNEL);
if (!plat_dev.sock)
if (!hsmp_pdev.is_probed) {
hsmp_pdev.sock = devm_kcalloc(&pdev->dev, hsmp_pdev.num_sockets,
sizeof(*hsmp_pdev.sock),
GFP_KERNEL);
if (!hsmp_pdev.sock)
return -ENOMEM;
}
if (check_acpi_support(&pdev->dev)) {
@ -468,19 +468,19 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n");
}
if (!plat_dev.is_probed) {
plat_dev.hsmp_device.name = HSMP_CDEV_NAME;
plat_dev.hsmp_device.minor = MISC_DYNAMIC_MINOR;
plat_dev.hsmp_device.fops = &hsmp_fops;
plat_dev.hsmp_device.parent = &pdev->dev;
plat_dev.hsmp_device.nodename = HSMP_DEVNODE_NAME;
plat_dev.hsmp_device.mode = 0644;
if (!hsmp_pdev.is_probed) {
hsmp_pdev.mdev.name = HSMP_CDEV_NAME;
hsmp_pdev.mdev.minor = MISC_DYNAMIC_MINOR;
hsmp_pdev.mdev.fops = &hsmp_fops;
hsmp_pdev.mdev.parent = &pdev->dev;
hsmp_pdev.mdev.nodename = HSMP_DEVNODE_NAME;
hsmp_pdev.mdev.mode = 0644;
ret = misc_register(&plat_dev.hsmp_device);
ret = misc_register(&hsmp_pdev.mdev);
if (ret)
return ret;
plat_dev.is_probed = true;
hsmp_pdev.is_probed = true;
}
return 0;
@ -493,9 +493,9 @@ static void hsmp_pltdrv_remove(struct platform_device *pdev)
* We register only one misc_device even on multi socket system.
* So, deregister should happen only once.
*/
if (plat_dev.is_probed) {
misc_deregister(&plat_dev.hsmp_device);
plat_dev.is_probed = false;
if (hsmp_pdev.is_probed) {
misc_deregister(&hsmp_pdev.mdev);
hsmp_pdev.is_probed = false;
}
}
@ -567,15 +567,15 @@ static int __init hsmp_plt_init(void)
* amd_nb_num() returns number of SMN/DF interfaces present in the system
* if we have N SMN/DF interfaces that ideally means N sockets
*/
plat_dev.num_sockets = amd_nb_num();
if (plat_dev.num_sockets == 0 || plat_dev.num_sockets > MAX_AMD_SOCKETS)
hsmp_pdev.num_sockets = amd_nb_num();
if (hsmp_pdev.num_sockets == 0 || hsmp_pdev.num_sockets > MAX_AMD_SOCKETS)
return ret;
ret = platform_driver_register(&amd_hsmp_driver);
if (ret)
return ret;
if (!plat_dev.is_acpi_device) {
if (!hsmp_pdev.is_acpi_device) {
if (legacy_hsmp_support()) {
/* Not ACPI device, but supports HSMP, register a plat_dev */
ret = hsmp_plat_dev_register();

4
drivers/platform/x86/amd/hsmp/hsmp.h
View File

@ -48,7 +48,7 @@ struct hsmp_socket {
};
struct hsmp_plat_device {
struct miscdevice hsmp_device;
struct miscdevice mdev;
struct hsmp_socket *sock;
u32 proto_ver;
u16 num_sockets;
@ -56,7 +56,7 @@ struct hsmp_plat_device {
bool is_probed;
};
extern struct hsmp_plat_device plat_dev;
extern struct hsmp_plat_device hsmp_pdev;
ssize_t hsmp_metric_tbl_read(struct file *filp, struct kobject *kobj,
struct bin_attribute *bin_attr, char *buf,

12
drivers/platform/x86/amd/hsmp/plat.c
View File

@ -56,21 +56,21 @@ int hsmp_create_non_acpi_sysfs_if(struct device *dev)
struct attribute_group *attr_grp;
u16 i;
hsmp_attr_grps = devm_kcalloc(dev, plat_dev.num_sockets + 1,
hsmp_attr_grps = devm_kcalloc(dev, hsmp_pdev.num_sockets + 1,
sizeof(*hsmp_attr_grps),
GFP_KERNEL);
if (!hsmp_attr_grps)
return -ENOMEM;
/* Create a sysfs directory for each socket */
for (i = 0; i < plat_dev.num_sockets; i++) {
for (i = 0; i < hsmp_pdev.num_sockets; i++) {
attr_grp = devm_kzalloc(dev, sizeof(struct attribute_group),
GFP_KERNEL);
if (!attr_grp)
return -ENOMEM;
snprintf(plat_dev.sock[i].name, HSMP_ATTR_GRP_NAME_SIZE, "socket%u", (u8)i);
attr_grp->name = plat_dev.sock[i].name;
snprintf(hsmp_pdev.sock[i].name, HSMP_ATTR_GRP_NAME_SIZE, "socket%u", (u8)i);
attr_grp->name = hsmp_pdev.sock[i].name;
attr_grp->is_bin_visible = hsmp_is_sock_attr_visible;
hsmp_attr_grps[i] = attr_grp;
@ -93,10 +93,10 @@ int init_platform_device(struct device *dev)
struct hsmp_socket *sock;
int ret, i;
for (i = 0; i < plat_dev.num_sockets; i++) {
for (i = 0; i < hsmp_pdev.num_sockets; i++) {
if (!node_to_amd_nb(i))
return -ENODEV;
sock = &plat_dev.sock[i];
sock = &hsmp_pdev.sock[i];
sock->root = node_to_amd_nb(i)->root;
sock->sock_ind = i;
sock->dev = dev;