hmz007
36ed224bac
Signed-off-by: hmz007 <hmz007@gmail.com> Change-Id: Ib87fdbe7a0be7dc961af3500fe9ea4589a127f9f
81 lines
2.1 KiB
C
81 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#include <linux/module.h>
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#include <linux/rwsem.h>
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#include <linux/gunyah_rsc_mgr.h>
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#include "rsc_mgr.h"
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static const struct gh_rm_platform_ops *rm_platform_ops;
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static DECLARE_RWSEM(rm_platform_ops_lock);
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int gh_rm_platform_pre_mem_share(struct gh_rm *rm, struct gh_rm_mem_parcel *mem_parcel)
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{
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int ret = 0;
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down_read(&rm_platform_ops_lock);
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if (rm_platform_ops && rm_platform_ops->pre_mem_share)
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ret = rm_platform_ops->pre_mem_share(rm, mem_parcel);
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up_read(&rm_platform_ops_lock);
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return ret;
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}
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EXPORT_SYMBOL_GPL(gh_rm_platform_pre_mem_share);
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int gh_rm_platform_post_mem_reclaim(struct gh_rm *rm, struct gh_rm_mem_parcel *mem_parcel)
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{
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int ret = 0;
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down_read(&rm_platform_ops_lock);
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if (rm_platform_ops && rm_platform_ops->post_mem_reclaim)
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ret = rm_platform_ops->post_mem_reclaim(rm, mem_parcel);
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up_read(&rm_platform_ops_lock);
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return ret;
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}
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EXPORT_SYMBOL_GPL(gh_rm_platform_post_mem_reclaim);
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int gh_rm_register_platform_ops(const struct gh_rm_platform_ops *platform_ops)
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{
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int ret = 0;
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down_write(&rm_platform_ops_lock);
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if (!rm_platform_ops)
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rm_platform_ops = platform_ops;
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else
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ret = -EEXIST;
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up_write(&rm_platform_ops_lock);
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return ret;
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}
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EXPORT_SYMBOL_GPL(gh_rm_register_platform_ops);
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void gh_rm_unregister_platform_ops(const struct gh_rm_platform_ops *platform_ops)
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{
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down_write(&rm_platform_ops_lock);
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if (rm_platform_ops == platform_ops)
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rm_platform_ops = NULL;
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up_write(&rm_platform_ops_lock);
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}
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EXPORT_SYMBOL_GPL(gh_rm_unregister_platform_ops);
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static void _devm_gh_rm_unregister_platform_ops(void *data)
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{
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gh_rm_unregister_platform_ops((const struct gh_rm_platform_ops *)data);
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}
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int devm_gh_rm_register_platform_ops(struct device *dev, const struct gh_rm_platform_ops *ops)
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{
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int ret;
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ret = gh_rm_register_platform_ops(ops);
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if (ret)
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return ret;
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return devm_add_action(dev, _devm_gh_rm_unregister_platform_ops, (void *)ops);
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}
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EXPORT_SYMBOL_GPL(devm_gh_rm_register_platform_ops);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("Gunyah Platform Hooks");
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