| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _ASM_CRIS_ARCH_SYSTEM_H |
| #define _ASM_CRIS_ARCH_SYSTEM_H |
| |
| |
| /* Read the CPU version register. */ |
| static inline unsigned long rdvr(void) |
| { |
| unsigned char vr; |
| |
| __asm__ __volatile__ ("move $vr, %0" : "=rm" (vr)); |
| return vr; |
| } |
| |
| #define cris_machine_name "crisv32" |
| |
| /* Read the user-mode stack pointer. */ |
| static inline unsigned long rdusp(void) |
| { |
| unsigned long usp; |
| |
| __asm__ __volatile__ ("move $usp, %0" : "=rm" (usp)); |
| return usp; |
| } |
| |
| /* Read the current stack pointer. */ |
| static inline unsigned long rdsp(void) |
| { |
| unsigned long sp; |
| |
| __asm__ __volatile__ ("move.d $sp, %0" : "=rm" (sp)); |
| return sp; |
| } |
| |
| /* Write the user-mode stack pointer. */ |
| #define wrusp(usp) __asm__ __volatile__ ("move %0, $usp" : : "rm" (usp)) |
| |
| #endif /* _ASM_CRIS_ARCH_SYSTEM_H */ |
