diff options
Diffstat (limited to 'sys/sun4v')
| -rw-r--r-- | sys/sun4v/include/smp.h | 3 | ||||
| -rw-r--r-- | sys/sun4v/sun4v/mp_machdep.c | 30 |
2 files changed, 28 insertions, 5 deletions
diff --git a/sys/sun4v/include/smp.h b/sys/sun4v/include/smp.h index ec30d0d..4f5fc76 100644 --- a/sys/sun4v/include/smp.h +++ b/sys/sun4v/include/smp.h @@ -85,8 +85,9 @@ void cpu_ipi_preempt(struct trapframe *tf); void cpu_ipi_hardclock(struct trapframe *tf); void cpu_ipi_statclock(struct trapframe *tf); -void ipi_selected(u_int cpus, u_int ipi); void ipi_all_but_self(u_int ipi); +void ipi_cpu(int cpu, u_int ipi); +void ipi_selected(u_int cpus, u_int ipi); vm_offset_t mp_tramp_alloc(void); void mp_set_tsb_desc_ra(vm_paddr_t); diff --git a/sys/sun4v/sun4v/mp_machdep.c b/sys/sun4v/sun4v/mp_machdep.c index 6461cf8..a5fa692 100644 --- a/sys/sun4v/sun4v/mp_machdep.c +++ b/sys/sun4v/sun4v/mp_machdep.c @@ -535,7 +535,6 @@ retry: } } - void ipi_selected(u_int icpus, u_int ipi) { @@ -550,7 +549,6 @@ ipi_selected(u_int icpus, u_int ipi) * 4) handling 4-way threading vs 2-way threading should happen here * and not in forward wakeup */ - cpulist = PCPU_GET(cpulist); cpus = (icpus & ~PCPU_GET(cpumask)); @@ -562,8 +560,32 @@ ipi_selected(u_int icpus, u_int ipi) cpu_count++; } - cpu_ipi_selected(cpu_count, cpulist, (u_long)tl_ipi_level, ipi, 0, &ackmask); - + cpu_ipi_selected(cpu_count, cpulist, (u_long)tl_ipi_level, ipi, 0, + &ackmask); +} + +void +ipi_cpu(int cpu, u_int ipi) +{ + int cpu_count; + uint16_t *cpulist; + uint64_t ackmask; + + /* + * + * 3) forward_wakeup appears to abuse ASTs + * 4) handling 4-way threading vs 2-way threading should happen here + * and not in forward wakeup + */ + cpulist = PCPU_GET(cpulist); + if (PCPU_GET(cpumask) & (1 << cpu)) + cpu_count = 0; + else { + cpulist[0] = (uint16_t)cpu; + cpu_count = 1; + } + cpu_ipi_selected(cpu_count, cpulist, (u_long)tl_ipi_level, ipi, 0, + &ackmask); } void |
