arch/xtensa/include/asm/kasan.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_KASAN_H
   3 #define __ASM_KASAN_H
   4
   5 #ifndef __ASSEMBLY__
   6
   7 #ifdef CONFIG_KASAN
   8
   9 #include <linux/kernel.h>
  10 #include <linux/sizes.h>
  11 #include <asm/kmem_layout.h>
  12
  13 #define KASAN_SHADOW_SCALE_SHIFT 3
  14
  15 /* Start of area covered by KASAN */
  16 #define KASAN_START_VADDR __XTENSA_UL_CONST(0x90000000)
  17 /* Start of the shadow map */
  18 #define KASAN_SHADOW_START (XCHAL_PAGE_TABLE_VADDR + XCHAL_PAGE_TABLE_SIZE)
  19 /* Size of the shadow map */
  20 #define KASAN_SHADOW_SIZE (-KASAN_START_VADDR >> KASAN_SHADOW_SCALE_SHIFT)
  21 /* Offset for mem to shadow address transformation */
  22 #define KASAN_SHADOW_OFFSET __XTENSA_UL_CONST(CONFIG_KASAN_SHADOW_OFFSET)
  23
  24 void __init kasan_early_init(void);
  25 void __init kasan_init(void);
  26
  27 #else
  28
  29 static inline void kasan_early_init(void)
  30 {
  31 }
  32
  33 static inline void kasan_init(void)
  34 {
  35 }
  36
  37 #endif
  38 #endif
  39 #endif