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Diffstat (limited to 'arch/s390/kernel/smp.c')
-rw-r--r--arch/s390/kernel/smp.c72
1 files changed, 24 insertions, 48 deletions
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index c78074c6cc1..6e4047e4b49 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -44,34 +44,10 @@
#include <asm/vdso.h>
#include <asm/debug.h>
#include <asm/os_info.h>
+#include <asm/sigp.h>
#include "entry.h"
enum {
- sigp_sense = 1,
- sigp_external_call = 2,
- sigp_emergency_signal = 3,
- sigp_start = 4,
- sigp_stop = 5,
- sigp_restart = 6,
- sigp_stop_and_store_status = 9,
- sigp_initial_cpu_reset = 11,
- sigp_cpu_reset = 12,
- sigp_set_prefix = 13,
- sigp_store_status_at_address = 14,
- sigp_store_extended_status_at_address = 15,
- sigp_set_architecture = 18,
- sigp_conditional_emergency_signal = 19,
- sigp_sense_running = 21,
-};
-
-enum {
- sigp_order_code_accepted = 0,
- sigp_status_stored = 1,
- sigp_busy = 2,
- sigp_not_operational = 3,
-};
-
-enum {
ec_schedule = 0,
ec_call_function,
ec_call_function_single,
@@ -124,7 +100,7 @@ static inline int __pcpu_sigp_relax(u16 addr, u8 order, u32 parm, u32 *status)
while (1) {
cc = __pcpu_sigp(addr, order, parm, status);
- if (cc != sigp_busy)
+ if (cc != SIGP_CC_BUSY)
return cc;
cpu_relax();
}
@@ -136,7 +112,7 @@ static int pcpu_sigp_retry(struct pcpu *pcpu, u8 order, u32 parm)
for (retry = 0; ; retry++) {
cc = __pcpu_sigp(pcpu->address, order, parm, &pcpu->status);
- if (cc != sigp_busy)
+ if (cc != SIGP_CC_BUSY)
break;
if (retry >= 3)
udelay(10);
@@ -146,8 +122,8 @@ static int pcpu_sigp_retry(struct pcpu *pcpu, u8 order, u32 parm)
static inline int pcpu_stopped(struct pcpu *pcpu)
{
- if (__pcpu_sigp(pcpu->address, sigp_sense,
- 0, &pcpu->status) != sigp_status_stored)
+ if (__pcpu_sigp(pcpu->address, SIGP_SENSE,
+ 0, &pcpu->status) != SIGP_CC_STATUS_STORED)
return 0;
/* Check for stopped and check stop state */
return !!(pcpu->status & 0x50);
@@ -155,8 +131,8 @@ static inline int pcpu_stopped(struct pcpu *pcpu)
static inline int pcpu_running(struct pcpu *pcpu)
{
- if (__pcpu_sigp(pcpu->address, sigp_sense_running,
- 0, &pcpu->status) != sigp_status_stored)
+ if (__pcpu_sigp(pcpu->address, SIGP_SENSE_RUNNING,
+ 0, &pcpu->status) != SIGP_CC_STATUS_STORED)
return 1;
/* Status stored condition code is equivalent to cpu not running. */
return 0;
@@ -181,7 +157,7 @@ static void pcpu_ec_call(struct pcpu *pcpu, int ec_bit)
set_bit(ec_bit, &pcpu->ec_mask);
order = pcpu_running(pcpu) ?
- sigp_external_call : sigp_emergency_signal;
+ SIGP_EXTERNAL_CALL : SIGP_EMERGENCY_SIGNAL;
pcpu_sigp_retry(pcpu, order, 0);
}
@@ -214,7 +190,7 @@ static int __cpuinit pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu)
goto out;
#endif
lowcore_ptr[cpu] = lc;
- pcpu_sigp_retry(pcpu, sigp_set_prefix, (u32)(unsigned long) lc);
+ pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, (u32)(unsigned long) lc);
return 0;
out:
if (pcpu != &pcpu_devices[0]) {
@@ -229,7 +205,7 @@ out:
static void pcpu_free_lowcore(struct pcpu *pcpu)
{
- pcpu_sigp_retry(pcpu, sigp_set_prefix, 0);
+ pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, 0);
lowcore_ptr[pcpu - pcpu_devices] = NULL;
#ifndef CONFIG_64BIT
if (MACHINE_HAS_IEEE) {
@@ -288,7 +264,7 @@ static void pcpu_start_fn(struct pcpu *pcpu, void (*func)(void *), void *data)
lc->restart_fn = (unsigned long) func;
lc->restart_data = (unsigned long) data;
lc->restart_source = -1UL;
- pcpu_sigp_retry(pcpu, sigp_restart, 0);
+ pcpu_sigp_retry(pcpu, SIGP_RESTART, 0);
}
/*
@@ -309,7 +285,7 @@ static void pcpu_delegate(struct pcpu *pcpu, void (*func)(void *),
if (pcpu->address == restart.source)
func(data); /* should not return */
/* Stop target cpu (if func returns this stops the current cpu). */
- pcpu_sigp_retry(pcpu, sigp_stop, 0);
+ pcpu_sigp_retry(pcpu, SIGP_STOP, 0);
/* Restart func on the target cpu and stop the current cpu. */
memcpy_absolute(&lc->restart_stack, &restart, sizeof(restart));
asm volatile(
@@ -388,8 +364,8 @@ void smp_emergency_stop(cpumask_t *cpumask)
for_each_cpu(cpu, cpumask) {
struct pcpu *pcpu = pcpu_devices + cpu;
set_bit(ec_stop_cpu, &pcpu->ec_mask);
- while (__pcpu_sigp(pcpu->address, sigp_emergency_signal,
- 0, NULL) == sigp_busy &&
+ while (__pcpu_sigp(pcpu->address, SIGP_EMERGENCY_SIGNAL,
+ 0, NULL) == SIGP_CC_BUSY &&
get_clock() < end)
cpu_relax();
}
@@ -425,7 +401,7 @@ void smp_send_stop(void)
/* stop all processors */
for_each_cpu(cpu, &cpumask) {
struct pcpu *pcpu = pcpu_devices + cpu;
- pcpu_sigp_retry(pcpu, sigp_stop, 0);
+ pcpu_sigp_retry(pcpu, SIGP_STOP, 0);
while (!pcpu_stopped(pcpu))
cpu_relax();
}
@@ -436,7 +412,7 @@ void smp_send_stop(void)
*/
void smp_stop_cpu(void)
{
- pcpu_sigp_retry(pcpu_devices + smp_processor_id(), sigp_stop, 0);
+ pcpu_sigp_retry(pcpu_devices + smp_processor_id(), SIGP_STOP, 0);
for (;;) ;
}
@@ -590,7 +566,7 @@ static void __init smp_get_save_area(int cpu, u16 address)
}
#endif
/* Get the registers of a non-boot cpu. */
- __pcpu_sigp_relax(address, sigp_stop_and_store_status, 0, NULL);
+ __pcpu_sigp_relax(address, SIGP_STOP_AND_STORE_STATUS, 0, NULL);
memcpy_real(save_area, lc + SAVE_AREA_BASE, sizeof(*save_area));
}
@@ -599,8 +575,8 @@ int smp_store_status(int cpu)
struct pcpu *pcpu;
pcpu = pcpu_devices + cpu;
- if (__pcpu_sigp_relax(pcpu->address, sigp_stop_and_store_status,
- 0, NULL) != sigp_order_code_accepted)
+ if (__pcpu_sigp_relax(pcpu->address, SIGP_STOP_AND_STORE_STATUS,
+ 0, NULL) != SIGP_CC_ORDER_CODE_ACCEPTED)
return -EIO;
return 0;
}
@@ -621,8 +597,8 @@ static struct sclp_cpu_info *smp_get_cpu_info(void)
if (info && (use_sigp_detection || sclp_get_cpu_info(info))) {
use_sigp_detection = 1;
for (address = 0; address <= MAX_CPU_ADDRESS; address++) {
- if (__pcpu_sigp_relax(address, sigp_sense, 0, NULL) ==
- sigp_not_operational)
+ if (__pcpu_sigp_relax(address, SIGP_SENSE, 0, NULL) ==
+ SIGP_CC_NOT_OPERATIONAL)
continue;
info->cpu[info->configured].address = address;
info->configured++;
@@ -734,8 +710,8 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle)
pcpu = pcpu_devices + cpu;
if (pcpu->state != CPU_STATE_CONFIGURED)
return -EIO;
- if (pcpu_sigp_retry(pcpu, sigp_initial_cpu_reset, 0) !=
- sigp_order_code_accepted)
+ if (pcpu_sigp_retry(pcpu, SIGP_INITIAL_CPU_RESET, 0) !=
+ SIGP_CC_ORDER_CODE_ACCEPTED)
return -EIO;
rc = pcpu_alloc_lowcore(pcpu, cpu);
@@ -795,7 +771,7 @@ void __cpu_die(unsigned int cpu)
void __noreturn cpu_die(void)
{
idle_task_exit();
- pcpu_sigp_retry(pcpu_devices + smp_processor_id(), sigp_stop, 0);
+ pcpu_sigp_retry(pcpu_devices + smp_processor_id(), SIGP_STOP, 0);
for (;;) ;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-16 00:19:24 +0000