diff options
Diffstat (limited to 'arch/sparc')
| -rw-r--r-- | arch/sparc/kernel/sun4d_irq.c | 78 |
1 files changed, 54 insertions, 24 deletions
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index a9ea60eb2c10..487c1bb374f5 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -299,19 +299,53 @@ static void __init sun4d_load_profile_irqs(void) } } +unsigned int _sun4d_build_device_irq(unsigned int real_irq, + unsigned int pil, + unsigned int board) +{ + struct sun4d_handler_data *handler_data; + unsigned int irq; + + irq = irq_alloc(real_irq, pil); + if (irq == 0) { + prom_printf("IRQ: allocate for %d %d %d failed\n", + real_irq, pil, board); + goto err_out; + } + + handler_data = irq_get_handler_data(irq); + if (unlikely(handler_data)) + goto err_out; + + handler_data = kzalloc(sizeof(struct sun4d_handler_data), GFP_ATOMIC); + if (unlikely(!handler_data)) { + prom_printf("IRQ: kzalloc(sun4d_handler_data) failed.\n"); + prom_halt(); + } + handler_data->cpuid = board_to_cpu[board]; + handler_data->real_irq = real_irq; + irq_set_chip_and_handler_name(irq, &sun4d_irq, + handle_level_irq, "level"); + irq_set_handler_data(irq, handler_data); + +err_out: + return irq; +} + + + unsigned int sun4d_build_device_irq(struct platform_device *op, unsigned int real_irq) { struct device_node *dp = op->dev.of_node; struct device_node *io_unit, *sbi = dp->parent; const struct linux_prom_registers *regs; - struct sun4d_handler_data *handler_data; unsigned int pil; unsigned int irq; int board, slot; int sbusl; - irq = 0; + irq = real_irq; while (sbi) { if (!strcmp(sbi->name, "sbi")) break; @@ -348,29 +382,17 @@ unsigned int sun4d_build_device_irq(struct platform_device *op, else pil = real_irq; - irq = irq_alloc(real_irq, pil); - if (irq == 0) - goto err_out; - - handler_data = irq_get_handler_data(irq); - if (unlikely(handler_data)) - goto err_out; - - handler_data = kzalloc(sizeof(struct sun4d_handler_data), GFP_ATOMIC); - if (unlikely(!handler_data)) { - prom_printf("IRQ: kzalloc(sun4d_handler_data) failed.\n"); - prom_halt(); - } - handler_data->cpuid = board_to_cpu[board]; - handler_data->real_irq = real_irq; - irq_set_chip_and_handler_name(irq, &sun4d_irq, - handle_level_irq, "level"); - irq_set_handler_data(irq, handler_data); - + irq = _sun4d_build_device_irq(real_irq, pil, board); err_out: - return real_irq; + return irq; } +unsigned int sun4d_build_timer_irq(unsigned int board, unsigned int real_irq) +{ + return _sun4d_build_device_irq(real_irq, real_irq, board); +} + + static void __init sun4d_fixup_trap_table(void) { #ifdef CONFIG_SMP @@ -402,6 +424,7 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn) unsigned int irq; const u32 *reg; int err; + int board; dp = of_find_node_by_name(NULL, "cpu-unit"); if (!dp) { @@ -414,12 +437,19 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn) * bootbus. */ reg = of_get_property(dp, "reg", NULL); - of_node_put(dp); if (!reg) { prom_printf("sun4d_init_timers: No reg property\n"); prom_halt(); } + board = of_getintprop_default(dp, "board#", -1); + if (board == -1) { + prom_printf("sun4d_init_timers: No board# property on cpu-unit\n"); + prom_halt(); + } + + of_node_put(dp); + res.start = reg[1]; res.end = reg[2] - 1; res.flags = reg[0] & 0xff; @@ -434,7 +464,7 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn) master_l10_counter = &sun4d_timers->l10_cur_count; - irq = sun4d_build_device_irq(NULL, SUN4D_TIMER_IRQ); + irq = sun4d_build_timer_irq(board, SUN4D_TIMER_IRQ); err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL); if (err) { prom_printf("sun4d_init_timers: request_irq() failed with %d\n", |