diff options
Diffstat (limited to 'arch/powerpc/kernel/irq.c')
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 81 |
1 files changed, 17 insertions, 64 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 5a71ed9612f..5651032d870 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -31,7 +31,6 @@ * to reduce code space and undefined function references. */ -#include <linux/errno.h> #include <linux/module.h> #include <linux/threads.h> #include <linux/kernel_stat.h> @@ -44,18 +43,12 @@ #include <linux/config.h> #include <linux/init.h> #include <linux/slab.h> -#include <linux/pci.h> #include <linux/delay.h> #include <linux/irq.h> -#include <linux/proc_fs.h> -#include <linux/random.h> #include <linux/seq_file.h> #include <linux/cpumask.h> #include <linux/profile.h> #include <linux/bitops.h> -#ifdef CONFIG_PPC64 -#include <linux/kallsyms.h> -#endif #include <asm/uaccess.h> #include <asm/system.h> @@ -66,8 +59,7 @@ #include <asm/prom.h> #include <asm/ptrace.h> #include <asm/machdep.h> -#ifdef CONFIG_PPC64 -#include <asm/iseries/it_lp_queue.h> +#ifdef CONFIG_PPC_ISERIES #include <asm/paca.h> #endif @@ -78,10 +70,6 @@ EXPORT_SYMBOL(__irq_offset_value); static int ppc_spurious_interrupts; -#if defined(CONFIG_PPC_ISERIES) && defined(CONFIG_SMP) -extern void iSeries_smp_message_recv(struct pt_regs *); -#endif - #ifdef CONFIG_PPC32 #define NR_MASK_WORDS ((NR_IRQS + 31) / 32) @@ -195,49 +183,6 @@ void fixup_irqs(cpumask_t map) } #endif -#ifdef CONFIG_PPC_ISERIES -void do_IRQ(struct pt_regs *regs) -{ - struct paca_struct *lpaca; - - irq_enter(); - -#ifdef CONFIG_DEBUG_STACKOVERFLOW - /* Debugging check for stack overflow: is there less than 2KB free? */ - { - long sp; - - sp = __get_SP() & (THREAD_SIZE-1); - - if (unlikely(sp < (sizeof(struct thread_info) + 2048))) { - printk("do_IRQ: stack overflow: %ld\n", - sp - sizeof(struct thread_info)); - dump_stack(); - } - } -#endif - - lpaca = get_paca(); -#ifdef CONFIG_SMP - if (lpaca->lppaca.int_dword.fields.ipi_cnt) { - lpaca->lppaca.int_dword.fields.ipi_cnt = 0; - iSeries_smp_message_recv(regs); - } -#endif /* CONFIG_SMP */ - if (hvlpevent_is_pending()) - process_hvlpevents(regs); - - irq_exit(); - - if (lpaca->lppaca.int_dword.fields.decr_int) { - lpaca->lppaca.int_dword.fields.decr_int = 0; - /* Signal a fake decrementer interrupt */ - timer_interrupt(regs); - } -} - -#else /* CONFIG_PPC_ISERIES */ - void do_IRQ(struct pt_regs *regs) { int irq; @@ -286,16 +231,24 @@ void do_IRQ(struct pt_regs *regs) } else #endif __do_IRQ(irq, regs); - } else -#ifdef CONFIG_PPC32 - if (irq != -2) -#endif - /* That's not SMP safe ... but who cares ? */ - ppc_spurious_interrupts++; + } else if (irq != -2) + /* That's not SMP safe ... but who cares ? */ + ppc_spurious_interrupts++; + irq_exit(); -} -#endif /* CONFIG_PPC_ISERIES */ +#ifdef CONFIG_PPC_ISERIES + { + struct paca_struct *lpaca = get_paca(); + + if (lpaca->lppaca.int_dword.fields.decr_int) { + lpaca->lppaca.int_dword.fields.decr_int = 0; + /* Signal a fake decrementer interrupt */ + timer_interrupt(regs); + } + } +#endif +} void __init init_IRQ(void) { |