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authorIngo Molnar <mingo@elte.hu>2008-10-15 13:46:29 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-15 13:46:29 +0200
commitb2aaf8f74cdc84a9182f6cabf198b7763bcb9d40 (patch)
tree53ccb1c2c14751fe69cf93102e76e97021f6df07 /arch/sparc/kernel/sun4m_smp.c
parent4f962d4d65923d7b722192e729840cfb79af0a5a (diff)
parent278429cff8809958d25415ba0ed32b59866ab1a8 (diff)
Merge branch 'linus' into stackprotector
Conflicts: arch/x86/kernel/Makefile include/asm-x86/pda.h
Diffstat (limited to 'arch/sparc/kernel/sun4m_smp.c')
-rw-r--r--arch/sparc/kernel/sun4m_smp.c24
1 files changed, 17 insertions, 7 deletions
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index ffb875aacb7..5fc386d08c4 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -17,6 +17,7 @@
#include <linux/swap.h>
#include <linux/profile.h>
#include <linux/delay.h>
+#include <linux/cpu.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
@@ -71,6 +72,8 @@ void __cpuinit smp4m_callin(void)
local_flush_cache_all();
local_flush_tlb_all();
+ notify_cpu_starting(cpuid);
+
/* Get our local ticker going. */
smp_setup_percpu_timer();
@@ -244,8 +247,9 @@ static struct smp_funcall {
static DEFINE_SPINLOCK(cross_call_lock);
/* Cross calls must be serialized, at least currently. */
-void smp4m_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
- unsigned long arg3, unsigned long arg4, unsigned long arg5)
+static void smp4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1,
+ unsigned long arg2, unsigned long arg3,
+ unsigned long arg4)
{
register int ncpus = SUN4M_NCPUS;
unsigned long flags;
@@ -258,14 +262,14 @@ void smp4m_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
ccall_info.arg2 = arg2;
ccall_info.arg3 = arg3;
ccall_info.arg4 = arg4;
- ccall_info.arg5 = arg5;
+ ccall_info.arg5 = 0;
/* Init receive/complete mapping, plus fire the IPI's off. */
{
- cpumask_t mask = cpu_online_map;
register int i;
cpu_clear(smp_processor_id(), mask);
+ cpus_and(mask, cpu_online_map, mask);
for(i = 0; i < ncpus; i++) {
if (cpu_isset(i, mask)) {
ccall_info.processors_in[i] = 0;
@@ -283,12 +287,16 @@ void smp4m_cross_call(smpfunc_t func, unsigned long arg1, unsigned long arg2,
i = 0;
do {
+ if (!cpu_isset(i, mask))
+ continue;
while(!ccall_info.processors_in[i])
barrier();
} while(++i < ncpus);
i = 0;
do {
+ if (!cpu_isset(i, mask))
+ continue;
while(!ccall_info.processors_out[i])
barrier();
} while(++i < ncpus);
@@ -308,6 +316,8 @@ void smp4m_cross_call_irq(void)
ccall_info.processors_out[i] = 1;
}
+extern void sun4m_clear_profile_irq(int cpu);
+
void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
{
struct pt_regs *old_regs;
@@ -315,7 +325,7 @@ void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
old_regs = set_irq_regs(regs);
- clear_profile_irq(cpu);
+ sun4m_clear_profile_irq(cpu);
profile_tick(CPU_PROFILING);
@@ -344,7 +354,7 @@ static void __init smp_setup_percpu_timer(void)
enable_pil_irq(14);
}
-void __init smp4m_blackbox_id(unsigned *addr)
+static void __init smp4m_blackbox_id(unsigned *addr)
{
int rd = *addr & 0x3e000000;
int rs1 = rd >> 11;
@@ -354,7 +364,7 @@ void __init smp4m_blackbox_id(unsigned *addr)
addr[2] = 0x80082003 | rd | rs1; /* and reg, 3, reg */
}
-void __init smp4m_blackbox_current(unsigned *addr)
+static void __init smp4m_blackbox_current(unsigned *addr)
{
int rd = *addr & 0x3e000000;
int rs1 = rd >> 11;