xref: /openbmc/qemu/linux-user/xtensa/target_cpu.h (revision bbe16574) 
1 /*
2  * Xtensa-specific CPU ABI and functions for linux-user
3  */
4 #ifndef XTENSA_TARGET_CPU_H
5 #define XTENSA_TARGET_CPU_H
6 
cpu_clone_regs_child(CPUXtensaState * env,target_ulong newsp,unsigned flags)7 static inline void cpu_clone_regs_child(CPUXtensaState *env,
8                                         target_ulong newsp,
9                                         unsigned flags)
10 {
11     if (newsp) {
12         env->regs[1] = newsp;
13         env->sregs[WINDOW_BASE] = 0;
14         env->sregs[WINDOW_START] = 0x1;
15     }
16     env->regs[2] = 0;
17 }
18 
cpu_clone_regs_parent(CPUXtensaState * env,unsigned flags)19 static inline void cpu_clone_regs_parent(CPUXtensaState *env, unsigned flags)
20 {
21 }
22 
cpu_set_tls(CPUXtensaState * env,target_ulong newtls)23 static inline void cpu_set_tls(CPUXtensaState *env, target_ulong newtls)
24 {
25     env->uregs[THREADPTR] = newtls;
26 }
27 
get_sp_from_cpustate(CPUXtensaState * state)28 static inline abi_ulong get_sp_from_cpustate(CPUXtensaState *state)
29 {
30     return state->regs[1];
31 }
32 #endif
33