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// SPDX-License-Identifier: GPL-2.0-only
//Copyright(c) 2021 Intel Corporation. All rights reserved.
#include <linux/libnvdimm.h>
#include <linux/rculist.h>
#include <linux/device.h>
#include <linux/export.h>
#include <linux/acpi.h>
#include <linux/pci.h>
#include "mock.h"
static LIST_HEAD(mock);
void register_cxl_mock_ops(struct cxl_mock_ops *ops)
{
list_add_rcu(&ops->list, &mock);
}
EXPORT_SYMBOL_GPL(register_cxl_mock_ops);
static DEFINE_SRCU(cxl_mock_srcu);
void unregister_cxl_mock_ops(struct cxl_mock_ops *ops)
{
list_del_rcu(&ops->list);
synchronize_srcu(&cxl_mock_srcu);
}
EXPORT_SYMBOL_GPL(unregister_cxl_mock_ops);
struct cxl_mock_ops *get_cxl_mock_ops(int *index)
{
*index = srcu_read_lock(&cxl_mock_srcu);
return list_first_or_null_rcu(&mock, struct cxl_mock_ops, list);
}
EXPORT_SYMBOL_GPL(get_cxl_mock_ops);
void put_cxl_mock_ops(int index)
{
srcu_read_unlock(&cxl_mock_srcu, index);
}
EXPORT_SYMBOL_GPL(put_cxl_mock_ops);
bool __wrap_is_acpi_device_node(const struct fwnode_handle *fwnode)
{
struct acpi_device *adev =
container_of(fwnode, struct acpi_device, fwnode);
int index;
struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
bool retval = false;
if (ops)
retval = ops->is_mock_adev(adev);
if (!retval)
retval = is_acpi_device_node(fwnode);
put_cxl_mock_ops(index);
return retval;
}
EXPORT_SYMBOL(__wrap_is_acpi_device_node);
int __wrap_acpi_table_parse_cedt(enum acpi_cedt_type id,
acpi_tbl_entry_handler_arg handler_arg,
void *arg)
{
int index, rc;
struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
if (ops)
rc = ops->acpi_table_parse_cedt(id, handler_arg, arg);
else
rc = acpi_table_parse_cedt(id, handler_arg, arg);
put_cxl_mock_ops(index);
return rc;
}
EXPORT_SYMBOL_NS_GPL(__wrap_acpi_table_parse_cedt, ACPI);
acpi_status __wrap_acpi_evaluate_integer(acpi_handle handle,
acpi_string pathname,
struct acpi_object_list *arguments,
unsigned long long *data)
{
int index;
struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
acpi_status status;
if (ops)
status = ops->acpi_evaluate_integer(handle, pathname, arguments,
data);
else
status = acpi_evaluate_integer(handle, pathname, arguments,
data);
put_cxl_mock_ops(index);
return status;
}
EXPORT_SYMBOL(__wrap_acpi_evaluate_integer);
struct acpi_pci_root *__wrap_acpi_pci_find_root(acpi_handle handle)
{
int index;
struct acpi_pci_root *root;
struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
if (ops)
root = ops->acpi_pci_find_root(handle);
else
root = acpi_pci_find_root(handle);
put_cxl_mock_ops(index);
return root;
}
EXPORT_SYMBOL_GPL(__wrap_acpi_pci_find_root);
void __wrap_pci_walk_bus(struct pci_bus *bus,
int (*cb)(struct pci_dev *, void *), void *userdata)
{
int index;
struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
if (ops && ops->is_mock_bus(bus)) {
int rc, i;
/*
* Simulate 2 root ports per host-bridge and no
* depth recursion.
*/
for (i = 0; i < 2; i++) {
rc = cb((struct pci_dev *) ops->mock_port(bus, i),
userdata);
if (rc)
break;
}
} else
pci_walk_bus(bus, cb, userdata);
put_cxl_mock_ops(index);
}
EXPORT_SYMBOL_GPL(__wrap_pci_walk_bus);
struct nvdimm_bus *
__wrap_nvdimm_bus_register(struct device *dev,
struct nvdimm_bus_descriptor *nd_desc)
{
int index;
struct cxl_mock_ops *ops = get_cxl_mock_ops(&index);
if (ops && ops->is_mock_dev(dev->parent->parent))
nd_desc->provider_name = "cxl_test";
put_cxl_mock_ops(index);
return nvdimm_bus_register(dev, nd_desc);
}
EXPORT_SYMBOL_GPL(__wrap_nvdimm_bus_register);
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS(ACPI);
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