Linux kernel mirror (for testing)
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1/* SPDX-License-Identifier: GPL-2.0 */
2/* Copyright (C) 2019 Cadence Design Systems Inc. */
3
4#ifndef _ASM_XTENSA_CORE_H
5#define _ASM_XTENSA_CORE_H
6
7#include <variant/core.h>
8
9#ifndef XCHAL_HAVE_EXCLUSIVE
10#define XCHAL_HAVE_EXCLUSIVE 0
11#endif
12
13#ifndef XCHAL_HAVE_EXTERN_REGS
14#define XCHAL_HAVE_EXTERN_REGS 0
15#endif
16
17#ifndef XCHAL_HAVE_MPU
18#define XCHAL_HAVE_MPU 0
19#endif
20
21#ifndef XCHAL_HAVE_VECBASE
22#define XCHAL_HAVE_VECBASE 0
23#endif
24
25#ifndef XCHAL_SPANNING_WAY
26#define XCHAL_SPANNING_WAY 0
27#endif
28
29#if XCHAL_HAVE_WINDOWED
30#if defined(CONFIG_USER_ABI_DEFAULT) || defined(CONFIG_USER_ABI_CALL0_PROBE)
31/* Whether windowed ABI is supported in userspace. */
32#define USER_SUPPORT_WINDOWED
33#endif
34#if defined(__XTENSA_WINDOWED_ABI__) || defined(USER_SUPPORT_WINDOWED)
35/* Whether windowed ABI is supported either in userspace or in the kernel. */
36#define SUPPORT_WINDOWED
37#endif
38#endif
39
40/* Xtensa ABI requires stack alignment to be at least 16 */
41#if XCHAL_DATA_WIDTH > 16
42#define XTENSA_STACK_ALIGNMENT XCHAL_DATA_WIDTH
43#else
44#define XTENSA_STACK_ALIGNMENT 16
45#endif
46
47#endif