diff options
Diffstat (limited to 'arch/alpha/include/asm/special_insns.h')
| -rw-r--r-- | arch/alpha/include/asm/special_insns.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/special_insns.h b/arch/alpha/include/asm/special_insns.h new file mode 100644 index 000000000..ca2c5c30b --- /dev/null +++ b/arch/alpha/include/asm/special_insns.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ALPHA_SPECIAL_INSNS_H +#define __ALPHA_SPECIAL_INSNS_H + +enum implver_enum { + IMPLVER_EV4, + IMPLVER_EV5, + IMPLVER_EV6 +}; + +#ifdef CONFIG_ALPHA_GENERIC +#define implver() \ +({ unsigned long __implver; \ + __asm__ ("implver %0" : "=r"(__implver)); \ + (enum implver_enum) __implver; }) +#else +/* Try to eliminate some dead code. */ +#ifdef CONFIG_ALPHA_EV4 +#define implver() IMPLVER_EV4 +#endif +#ifdef CONFIG_ALPHA_EV5 +#define implver() IMPLVER_EV5 +#endif +#if defined(CONFIG_ALPHA_EV6) +#define implver() IMPLVER_EV6 +#endif +#endif + +enum amask_enum { + AMASK_BWX = (1UL << 0), + AMASK_FIX = (1UL << 1), + AMASK_CIX = (1UL << 2), + AMASK_MAX = (1UL << 8), + AMASK_PRECISE_TRAP = (1UL << 9), +}; + +#define amask(mask) \ +({ unsigned long __amask, __input = (mask); \ + __asm__ ("amask %1,%0" : "=r"(__amask) : "rI"(__input)); \ + __amask; }) + +#endif /* __ALPHA_SPECIAL_INSNS_H */ |