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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/arm64/include/asm/vmap_stack.h | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm64/include/asm/vmap_stack.h')
| -rw-r--r-- | arch/arm64/include/asm/vmap_stack.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/vmap_stack.h b/arch/arm64/include/asm/vmap_stack.h new file mode 100644 index 000000000..894e031b2 --- /dev/null +++ b/arch/arm64/include/asm/vmap_stack.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +// Copyright (C) 2017 Arm Ltd. +#ifndef __ASM_VMAP_STACK_H +#define __ASM_VMAP_STACK_H + +#include <linux/bug.h> +#include <linux/gfp.h> +#include <linux/kconfig.h> +#include <linux/vmalloc.h> +#include <linux/pgtable.h> +#include <asm/memory.h> +#include <asm/thread_info.h> + +/* + * To ensure that VMAP'd stack overflow detection works correctly, all VMAP'd + * stacks need to have the same alignment. + */ +static inline unsigned long *arch_alloc_vmap_stack(size_t stack_size, int node) +{ + BUILD_BUG_ON(!IS_ENABLED(CONFIG_VMAP_STACK)); + + return __vmalloc_node(stack_size, THREAD_ALIGN, THREADINFO_GFP, node, + __builtin_return_address(0)); +} + +#endif /* __ASM_VMAP_STACK_H */ |