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authorLen Brown <len.brown@intel.com>2011-01-12 18:06:06 -0500
committerLen Brown <len.brown@intel.com>2011-01-12 18:06:06 -0500
commit56dbed129df3fdd4caf9018b6e7599ee258a5420 (patch)
treeb902491aef3a99efe0d9d49edd0f6e414dba654f /arch/blackfin/mach-bf561/smp.c
parent2a2d31c8dc6f1ebcf5eab1d93a0cb0fb4ed57c7c (diff)
parentf878133bf022717b880d0e0995b8f91436fd605c (diff)
Merge branch 'linus' into idle-test
Diffstat (limited to 'arch/blackfin/mach-bf561/smp.c')
-rw-r--r--arch/blackfin/mach-bf561/smp.c29
1 files changed, 17 insertions, 12 deletions
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
index f540ed1257d..1074a7ef81c 100644
--- a/arch/blackfin/mach-bf561/smp.c
+++ b/arch/blackfin/mach-bf561/smp.c
@@ -86,12 +86,12 @@ int __cpuinit platform_boot_secondary(unsigned int cpu, struct task_struct *idle
spin_lock(&boot_lock);
- if ((bfin_read_SIC_SYSCR() & COREB_SRAM_INIT) == 0) {
+ if ((bfin_read_SYSCR() & COREB_SRAM_INIT) == 0) {
/* CoreB already running, sending ipi to wakeup it */
platform_send_ipi_cpu(cpu, IRQ_SUPPLE_0);
} else {
/* Kick CoreB, which should start execution from CORE_SRAM_BASE. */
- bfin_write_SIC_SYSCR(bfin_read_SIC_SYSCR() & ~COREB_SRAM_INIT);
+ bfin_write_SYSCR(bfin_read_SYSCR() & ~COREB_SRAM_INIT);
SSYNC();
}
@@ -111,41 +111,46 @@ int __cpuinit platform_boot_secondary(unsigned int cpu, struct task_struct *idle
panic("CPU%u: processor failed to boot\n", cpu);
}
-void __init platform_request_ipi(irq_handler_t handler)
+static const char supple0[] = "IRQ_SUPPLE_0";
+static const char supple1[] = "IRQ_SUPPLE_1";
+void __init platform_request_ipi(int irq, void *handler)
{
int ret;
+ const char *name = (irq == IRQ_SUPPLE_0) ? supple0 : supple1;
- ret = request_irq(IRQ_SUPPLE_0, handler, IRQF_DISABLED,
- "Supplemental Interrupt0", handler);
+ ret = request_irq(irq, handler, IRQF_DISABLED | IRQF_PERCPU, name, handler);
if (ret)
- panic("Cannot request supplemental interrupt 0 for IPI service");
+ panic("Cannot request %s for IPI service", name);
}
-void platform_send_ipi(cpumask_t callmap)
+void platform_send_ipi(cpumask_t callmap, int irq)
{
unsigned int cpu;
+ int offset = (irq == IRQ_SUPPLE_0) ? 6 : 8;
for_each_cpu_mask(cpu, callmap) {
BUG_ON(cpu >= 2);
SSYNC();
- bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (6 + cpu)));
+ bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (offset + cpu)));
SSYNC();
}
}
-void platform_send_ipi_cpu(unsigned int cpu)
+void platform_send_ipi_cpu(unsigned int cpu, int irq)
{
+ int offset = (irq == IRQ_SUPPLE_0) ? 6 : 8;
BUG_ON(cpu >= 2);
SSYNC();
- bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (6 + cpu)));
+ bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (offset + cpu)));
SSYNC();
}
-void platform_clear_ipi(unsigned int cpu)
+void platform_clear_ipi(unsigned int cpu, int irq)
{
+ int offset = (irq == IRQ_SUPPLE_0) ? 10 : 12;
BUG_ON(cpu >= 2);
SSYNC();
- bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (10 + cpu)));
+ bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (offset + cpu)));
SSYNC();
}