lib/s390x/smp.c

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * s390x smp
19 #include <asm/asm-offsets.h>
44 	if (THIS_CPU->idx == idx)  in smp_get_lowcore()
103 		return -1;  in smp_cpu_stop_nolock()
106 		return -1;  in smp_cpu_stop_nolock()
128  * Used to see if KVM itself is serialized correctly.
136 		return -1;  in smp_cpu_stop_nowait()
143 		return -1;  in smp_cpu_stop_nowait()
168 		cpus[idx].lowcore->restart_new_psw.mask = psw->mask;  in smp_cpu_restart_nolock()
169 		cpus[idx].lowcore->restart_new_psw.addr = psw->addr;  in smp_cpu_restart_nolock()
203  * Used to see if KVM itself is serialized correctly.
214 		return -1;  in smp_cpu_restart_nowait()
243 		cpus[idx].lowcore = (void *)-1UL;  in smp_cpu_destroy()
244 		cpus[idx].stack = (void *)-1UL;  in smp_cpu_destroy()
255 		return -1;  in smp_cpu_setup_nolock()
265 	lc->this_cpu = &cpus[idx];  in smp_cpu_setup_nolock()
271 	lc->sw_int_psw.mask = psw.mask;  in smp_cpu_setup_nolock()
272 	lc->sw_int_psw.addr = psw.addr;  in smp_cpu_setup_nolock()
273 	lc->sw_int_grs[14] = psw.addr;  in smp_cpu_setup_nolock()
274 	lc->sw_int_grs[15] = (uint64_t)cpus[idx].stack + (PAGE_SIZE * 4);  in smp_cpu_setup_nolock()
275 	lc->restart_new_psw.mask = PSW_MASK_64;  in smp_cpu_setup_nolock()
276 	lc->restart_new_psw.addr = (uint64_t)smp_cpu_setup_state;  in smp_cpu_setup_nolock()
277 	lc->sw_int_crs[0] = BIT_ULL(CTL0_AFP);  in smp_cpu_setup_nolock()
282 	while (lc->restart_new_psw.addr != psw.addr)  in smp_cpu_setup_nolock()
290 	int rc = -1;  in smp_cpu_setup()