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// SPDX-License-Identifier: GPL-2.0-only
/* Copyright(c) 2023 Huawei. All rights reserved. */
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/idr.h>
#include <cxlmem.h>
#include <pmu.h>
#include <cxl.h>
#include "core.h"
static void cxl_pmu_release(struct device *dev)
{
struct cxl_pmu *pmu = to_cxl_pmu(dev);
kfree(pmu);
}
const struct device_type cxl_pmu_type = {
.name = "cxl_pmu",
.release = cxl_pmu_release,
};
static void remove_dev(void *dev)
{
device_unregister(dev);
}
int devm_cxl_pmu_add(struct device *parent, struct cxl_pmu_regs *regs,
int assoc_id, int index, enum cxl_pmu_type type)
{
struct cxl_pmu *pmu;
struct device *dev;
int rc;
pmu = kzalloc(sizeof(*pmu), GFP_KERNEL);
if (!pmu)
return -ENOMEM;
pmu->assoc_id = assoc_id;
pmu->index = index;
pmu->type = type;
pmu->base = regs->pmu;
dev = &pmu->dev;
device_initialize(dev);
device_set_pm_not_required(dev);
dev->parent = parent;
dev->bus = &cxl_bus_type;
dev->type = &cxl_pmu_type;
switch (pmu->type) {
case CXL_PMU_MEMDEV:
rc = dev_set_name(dev, "pmu_mem%d.%d", assoc_id, index);
break;
}
if (rc)
goto err;
rc = device_add(dev);
if (rc)
goto err;
return devm_add_action_or_reset(parent, remove_dev, dev);
err:
put_device(&pmu->dev);
return rc;
}
EXPORT_SYMBOL_NS_GPL(devm_cxl_pmu_add, "CXL");
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