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powerpc: Remove checks for MSG_ALL and MSG_ALL_BUT_SELF

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Now that smp_ops->smp_message_pass is always called with an (online) cpu
number for the target remove the checks for MSG_ALL and MSG_ALL_BUT_SELF.

Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Milton Miller 2011-05-10 19:29:10 +00:00 committed by Benjamin Herrenschmidt
parent e047637132
commit f1072939b6
12 changed files with 20 additions and 162 deletions
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2
arch/powerpc/include/asm/dbell.h
View File

@ -27,7 +27,7 @@ enum ppc_dbell {
PPC_G_DBELL_MC = 4, /* guest mcheck doorbell */
};
extern void doorbell_message_pass(int target, int msg);
extern void doorbell_message_pass(int cpu, int msg);
extern void doorbell_exception(struct pt_regs *regs);
extern void doorbell_check_self(void);
extern void doorbell_setup_this_cpu(void);

2
arch/powerpc/include/asm/machdep.h
View File

@ -31,7 +31,7 @@ struct kimage;
#ifdef CONFIG_SMP
struct smp_ops_t {
void (*message_pass)(int target, int msg);
void (*message_pass)(int cpu, int msg);
int (*probe)(void);
int (*kick_cpu)(int nr);
void (*setup_cpu)(int nr);

2
arch/powerpc/include/asm/xics.h
View File

@ -40,7 +40,7 @@ struct icp_ops {
void (*teardown_cpu)(void);
void (*flush_ipi)(void);
#ifdef CONFIG_SMP
void (*message_pass)(int target, int msg);
void (*message_pass)(int cpu, int msg);
irq_handler_t ipi_action;
#endif
};

27
arch/powerpc/kernel/dbell.c
View File

@ -34,32 +34,13 @@ void doorbell_setup_this_cpu(void)
info->tag = mfspr(SPRN_PIR) & 0x3fff;
}
void doorbell_message_pass(int target, int msg)
void doorbell_message_pass(int cpu, int msg)
{
struct doorbell_cpu_info *info;
int i;
if (target < NR_CPUS) {
info = &per_cpu(doorbell_cpu_info, target);
set_bit(msg, &info->messages);
ppc_msgsnd(PPC_DBELL, 0, info->tag);
}
else if (target == MSG_ALL_BUT_SELF) {
for_each_online_cpu(i) {
if (i == smp_processor_id())
continue;
info = &per_cpu(doorbell_cpu_info, i);
set_bit(msg, &info->messages);
ppc_msgsnd(PPC_DBELL, 0, info->tag);
}
}
else { /* target == MSG_ALL */
for_each_online_cpu(i) {
info = &per_cpu(doorbell_cpu_info, i);
set_bit(msg, &info->messages);
}
ppc_msgsnd(PPC_DBELL, PPC_DBELL_MSG_BRDCAST, 0);
}
info = &per_cpu(doorbell_cpu_info, cpu);
set_bit(msg, &info->messages);
ppc_msgsnd(PPC_DBELL, 0, info->tag);
}
void doorbell_exception(struct pt_regs *regs)

18
arch/powerpc/platforms/cell/beat_smp.c
View File

@ -67,22 +67,6 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
return 0;
}
static void smp_beatic_message_pass(int target, int msg)
{
unsigned int i;
if (target < NR_CPUS) {
beatic_cause_IPI(target, msg);
} else {
for_each_online_cpu(i) {
if (target == MSG_ALL_BUT_SELF
&& i == smp_processor_id())
continue;
beatic_cause_IPI(i, msg);
}
}
}
static int __init smp_beatic_probe(void)
{
return cpumask_weight(cpu_possible_mask);
@ -105,7 +89,7 @@ static int smp_celleb_cpu_bootable(unsigned int nr)
return 1;
}
static struct smp_ops_t bpa_beatic_smp_ops = {
.message_pass = smp_beatic_message_pass,
.message_pass = beatic_cause_IPI,
.probe = smp_beatic_probe,
.kick_cpu = smp_celleb_kick_cpu,
.setup_cpu = smp_beatic_setup_cpu,

18
arch/powerpc/platforms/cell/smp.c
View File

@ -103,22 +103,6 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
return 1;
}
static void smp_iic_message_pass(int target, int msg)
{
unsigned int i;
if (target < NR_CPUS) {
iic_cause_IPI(target, msg);
} else {
for_each_online_cpu(i) {
if (target == MSG_ALL_BUT_SELF
&& i == smp_processor_id())
continue;
iic_cause_IPI(i, msg);
}
}
}
static int __init smp_iic_probe(void)
{
iic_request_IPIs();
@ -168,7 +152,7 @@ static int smp_cell_cpu_bootable(unsigned int nr)
return 1;
}
static struct smp_ops_t bpa_iic_smp_ops = {
.message_pass = smp_iic_message_pass,
.message_pass = iic_cause_IPI,
.probe = smp_iic_probe,
.kick_cpu = smp_cell_kick_cpu,
.setup_cpu = smp_cell_setup_cpu,

18
arch/powerpc/platforms/iseries/smp.c
View File

@ -59,28 +59,12 @@ void iSeries_smp_message_recv(void)
smp_message_recv(msg);
}
static inline void smp_iSeries_do_message(int cpu, int msg)
static void smp_iSeries_message_pass(int cpu, int msg)
{
set_bit(msg, &iSeries_smp_message[cpu]);
HvCall_sendIPI(&(paca[cpu]));
}
static void smp_iSeries_message_pass(int target, int msg)
{
int i;
if (target < NR_CPUS)
smp_iSeries_do_message(target, msg);
else {
for_each_online_cpu(i) {
if ((target == MSG_ALL_BUT_SELF) &&
(i == smp_processor_id()))
continue;
smp_iSeries_do_message(i, msg);
}
}
}
static int smp_iSeries_probe(void)
{
return cpumask_weight(cpu_possible_mask);

17
arch/powerpc/platforms/powermac/smp.c
View File

@ -186,21 +186,10 @@ irqreturn_t psurge_primary_intr(int irq, void *d)
return IRQ_HANDLED;
}
static void smp_psurge_message_pass(int target, int msg)
static void smp_psurge_message_pass(int cpu, int msg)
{
int i;
if (num_online_cpus() < 2)
return;
for_each_online_cpu(i) {
if (target == MSG_ALL
|| (target == MSG_ALL_BUT_SELF && i != smp_processor_id())
|| target == i) {
set_bit(msg, &psurge_smp_message[i]);
psurge_set_ipi(i);
}
}
set_bit(msg, &psurge_smp_message[cpu]);
psurge_set_ipi(cpu);
}
/*

22
arch/powerpc/platforms/ps3/smp.c
View File

@ -39,7 +39,7 @@
#define MSG_COUNT 4
static DEFINE_PER_CPU(unsigned int [MSG_COUNT], ps3_ipi_virqs);
static void do_message_pass(int target, int msg)
static void ps3_smp_message_pass(int cpu, int msg)
{
int result;
unsigned int virq;
@ -49,28 +49,12 @@ static void do_message_pass(int target, int msg)
return;
}
virq = per_cpu(ps3_ipi_virqs, target)[msg];
virq = per_cpu(ps3_ipi_virqs, cpu)[msg];
result = ps3_send_event_locally(virq);
if (result)
DBG("%s:%d: ps3_send_event_locally(%d, %d) failed"
" (%d)\n", __func__, __LINE__, target, msg, result);
}
static void ps3_smp_message_pass(int target, int msg)
{
int cpu;
if (target < NR_CPUS)
do_message_pass(target, msg);
else if (target == MSG_ALL_BUT_SELF) {
for_each_online_cpu(cpu)
if (cpu != smp_processor_id())
do_message_pass(cpu, msg);
} else {
for_each_online_cpu(cpu)
do_message_pass(cpu, msg);
}
" (%d)\n", __func__, __LINE__, cpu, msg, result);
}
static int ps3_smp_probe(void)

20
arch/powerpc/sysdev/mpic.c
View File

@ -1628,31 +1628,15 @@ static void mpic_send_ipi(unsigned int ipi_no, const struct cpumask *cpu_mask)
mpic_physmask(cpumask_bits(cpu_mask)[0]));
}
void smp_mpic_message_pass(int target, int msg)
void smp_mpic_message_pass(int cpu, int msg)
{
cpumask_var_t tmp;
/* make sure we're sending something that translates to an IPI */
if ((unsigned int)msg > 3) {
printk("SMP %d: smp_message_pass: unknown msg %d\n",
smp_processor_id(), msg);
return;
}
switch (target) {
case MSG_ALL:
mpic_send_ipi(msg, cpu_online_mask);
break;
case MSG_ALL_BUT_SELF:
alloc_cpumask_var(&tmp, GFP_NOWAIT);
cpumask_andnot(tmp, cpu_online_mask,
cpumask_of(smp_processor_id()));
mpic_send_ipi(msg, tmp);
free_cpumask_var(tmp);
break;
default:
mpic_send_ipi(msg, cpumask_of(target));
break;
}
mpic_send_ipi(msg, cpumask_of(cpu));
}
int __init smp_mpic_probe(void)

18
arch/powerpc/sysdev/xics/icp-hv.c
View File

@ -118,7 +118,7 @@ static void icp_hv_set_cpu_priority(unsigned char cppr)
#ifdef CONFIG_SMP
static inline void icp_hv_do_message(int cpu, int msg)
static void icp_hv_message_pass(int cpu, int msg)
{
unsigned long *tgt = &per_cpu(xics_ipi_message, cpu);
@ -127,22 +127,6 @@ static inline void icp_hv_do_message(int cpu, int msg)
icp_hv_set_qirr(cpu, IPI_PRIORITY);
}
static void icp_hv_message_pass(int target, int msg)
{
unsigned int i;
if (target < NR_CPUS) {
icp_hv_do_message(target, msg);
} else {
for_each_online_cpu(i) {
if (target == MSG_ALL_BUT_SELF
&& i == smp_processor_id())
continue;
icp_hv_do_message(i, msg);
}
}
}
static irqreturn_t icp_hv_ipi_action(int irq, void *dev_id)
{
int cpu = smp_processor_id();

18
arch/powerpc/sysdev/xics/icp-native.c
View File

@ -134,7 +134,7 @@ static unsigned int icp_native_get_irq(void)
#ifdef CONFIG_SMP
static inline void icp_native_do_message(int cpu, int msg)
static void icp_native_message_pass(int cpu, int msg)
{
unsigned long *tgt = &per_cpu(xics_ipi_message, cpu);
@ -143,22 +143,6 @@ static inline void icp_native_do_message(int cpu, int msg)
icp_native_set_qirr(cpu, IPI_PRIORITY);
}
static void icp_native_message_pass(int target, int msg)
{
unsigned int i;
if (target < NR_CPUS) {
icp_native_do_message(target, msg);
} else {
for_each_online_cpu(i) {
if (target == MSG_ALL_BUT_SELF
&& i == smp_processor_id())
continue;
icp_native_do_message(i, msg);
}
}
}
static irqreturn_t icp_native_ipi_action(int irq, void *dev_id)
{
int cpu = smp_processor_id();