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| author | Ingo Molnar <mingo@elte.hu> | 2011-06-16 13:23:15 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-06-16 13:23:22 +0200 |
| commit | b4f9f2b64aa189c5584f266f4f0343af7a705441 (patch) | |
| tree | f410718bb93590ff61682b566c10f70d5883bbcd /arch/sparc/kernel/leon_kernel.c | |
| parent | 76369139ceb955deefc509e6e12ce9d6ce50ccab (diff) | |
| parent | 2c53b436a30867eb6b47dd7bab23ba638d1fb0d2 (diff) | |
Merge commit 'v3.0-rc3' into perf/core
Merge reason: add the latest fixes.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/sparc/kernel/leon_kernel.c')
| -rw-r--r-- | arch/sparc/kernel/leon_kernel.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index 2f538ac2e13..d17255a2bba 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -236,6 +236,21 @@ static unsigned int _leon_build_device_irq(struct platform_device *op, return leon_build_device_irq(real_irq, handle_simple_irq, "edge", 0); } +void leon_update_virq_handling(unsigned int virq, + irq_flow_handler_t flow_handler, + const char *name, int do_ack) +{ + unsigned long mask = (unsigned long)irq_get_chip_data(virq); + + mask &= ~LEON_DO_ACK_HW; + if (do_ack) + mask |= LEON_DO_ACK_HW; + + irq_set_chip_and_handler_name(virq, &leon_irq, + flow_handler, name); + irq_set_chip_data(virq, (void *)mask); +} + void __init leon_init_timers(irq_handler_t counter_fn) { int irq, eirq; @@ -361,6 +376,22 @@ void __init leon_init_timers(irq_handler_t counter_fn) prom_halt(); } +#ifdef CONFIG_SMP + { + unsigned long flags; + + /* + * In SMP, sun4m adds a IPI handler to IRQ trap handler that + * LEON never must take, sun4d and LEON overwrites the branch + * with a NOP. + */ + local_irq_save(flags); + patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */ + local_flush_cache_all(); + local_irq_restore(flags); + } +#endif + LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, LEON3_GPTIMER_EN | LEON3_GPTIMER_RL | |