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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_del(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); |