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platform/x86/amd/hsmp: Create wrapper function init_acpi()

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This is in preparation to splitting ACPI and platform device drivers.
Having init_acpi() helps in smooth code movement.

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/20241021111428.2676884-2-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Suma Hegde 2024-10-21 11:14:19 +00:00 committed by Ilpo Järvinen
parent 9df193087b
commit 1e1c4c0ab3
No known key found for this signature in database
GPG Key ID: 59AC4F6153E5CE31
1 changed files with 61 additions and 34 deletions
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95
drivers/platform/x86/amd/hsmp/hsmp.c
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@ -778,6 +778,11 @@ static int init_platform_device(struct device *dev)
dev_err(dev, "Is HSMP disabled in BIOS ?\n");
return ret;
}
ret = hsmp_cache_proto_ver(i);
if (ret) {
dev_err(dev, "Failed to read HSMP protocol version\n");
return ret;
}
}
return 0;
@ -789,10 +794,53 @@ static const struct acpi_device_id amd_hsmp_acpi_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, amd_hsmp_acpi_ids);
static bool check_acpi_support(struct device *dev)
{
struct acpi_device *adev = ACPI_COMPANION(dev);
if (adev && !acpi_match_device_ids(adev, amd_hsmp_acpi_ids))
return true;
return false;
}
static int init_acpi(struct device *dev)
{
u16 sock_ind;
int ret;
ret = hsmp_get_uid(dev, &sock_ind);
if (ret)
return ret;
if (sock_ind >= plat_dev.num_sockets)
return -EINVAL;
ret = hsmp_parse_acpi_table(dev, sock_ind);
if (ret) {
dev_err(dev, "Failed to parse ACPI table\n");
return ret;
}
/* Test the hsmp interface */
ret = hsmp_test(sock_ind, 0xDEADBEEF);
if (ret) {
dev_err(dev, "HSMP test message failed on Fam:%x model:%x\n",
boot_cpu_data.x86, boot_cpu_data.x86_model);
dev_err(dev, "Is HSMP disabled in BIOS ?\n");
return ret;
}
ret = hsmp_cache_proto_ver(sock_ind);
if (ret) {
dev_err(dev, "Failed to read HSMP protocol version\n");
return ret;
}
return ret;
}
static int hsmp_pltdrv_probe(struct platform_device *pdev)
{
struct acpi_device *adev;
u16 sock_ind = 0;
int ret;
/*
@ -809,46 +857,25 @@ static int hsmp_pltdrv_probe(struct platform_device *pdev)
if (!plat_dev.sock)
return -ENOMEM;
}
adev = ACPI_COMPANION(&pdev->dev);
if (adev && !acpi_match_device_ids(adev, amd_hsmp_acpi_ids)) {
ret = hsmp_get_uid(&pdev->dev, &sock_ind);
if (check_acpi_support(&pdev->dev)) {
ret = init_acpi(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "Failed to init HSMP mailbox\n");
return ret;
}
ret = hsmp_create_acpi_sysfs_if(&pdev->dev);
if (ret)
return ret;
if (sock_ind >= plat_dev.num_sockets)
return -EINVAL;
ret = hsmp_parse_acpi_table(&pdev->dev, sock_ind);
if (ret) {
dev_err(&pdev->dev, "Failed to parse ACPI table\n");
return ret;
}
/* Test the hsmp interface */
ret = hsmp_test(sock_ind, 0xDEADBEEF);
if (ret) {
dev_err(&pdev->dev, "HSMP test message failed on Fam:%x model:%x\n",
boot_cpu_data.x86, boot_cpu_data.x86_model);
dev_err(&pdev->dev, "Is HSMP disabled in BIOS ?\n");
return ret;
}
dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n");
} else {
ret = init_platform_device(&pdev->dev);
if (ret) {
dev_err(&pdev->dev, "Failed to init HSMP mailbox\n");
return ret;
}
}
ret = hsmp_cache_proto_ver(sock_ind);
if (ret) {
dev_err(&pdev->dev, "Failed to read HSMP protocol version\n");
return ret;
}
if (plat_dev.is_acpi_device)
ret = hsmp_create_acpi_sysfs_if(&pdev->dev);
else
ret = hsmp_create_non_acpi_sysfs_if(&pdev->dev);
if (ret)
dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n");
if (ret)
dev_err(&pdev->dev, "Failed to create HSMP sysfs interface\n");
}
if (!plat_dev.is_probed) {
plat_dev.hsmp_device.name = HSMP_CDEV_NAME;