2019-04-16 20:49:35 +05:30
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/* SPDX-License-Identifier: GPL-2.0 */
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2018-01-08 15:38:10 +00:00
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// Copyright (C) 2017 Arm Ltd.
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#ifndef __ASM_VMAP_STACK_H
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#define __ASM_VMAP_STACK_H
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#include <linux/gfp.h>
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#include <linux/vmalloc.h>
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2020-06-08 21:32:38 -07:00
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#include <linux/pgtable.h>
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2020-06-08 21:32:42 -07:00
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#include <asm/memory.h>
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2018-01-08 15:38:10 +00:00
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#include <asm/thread_info.h>
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/*
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* To ensure that VMAP'd stack overflow detection works correctly, all VMAP'd
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* stacks need to have the same alignment.
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*/
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static inline unsigned long *arch_alloc_vmap_stack(size_t stack_size, int node)
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{
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2022-03-24 18:11:10 -07:00
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void *p;
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p = __vmalloc_node(stack_size, THREAD_ALIGN, THREADINFO_GFP, node,
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2020-06-01 21:52:06 -07:00
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__builtin_return_address(0));
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2022-03-24 18:11:10 -07:00
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return kasan_reset_tag(p);
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2018-01-08 15:38:10 +00:00
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}
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#endif /* __ASM_VMAP_STACK_H */
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