| /* 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) | |
| { | |
| void *p; | |
| BUILD_BUG_ON(!IS_ENABLED(CONFIG_VMAP_STACK)); | |
| p = __vmalloc_node(stack_size, THREAD_ALIGN, THREADINFO_GFP, node, | |
| __builtin_return_address(0)); | |
| return kasan_reset_tag(p); | |
| } | |
| #endif /* __ASM_VMAP_STACK_H */ |