diff options
| author | Sonic Zhang <sonic.zhang@analog.com> | 2012-07-04 19:22:55 +0800 |
|---|---|---|
| committer | Bob Liu <lliubbo@gmail.com> | 2012-07-24 13:39:52 +0800 |
| commit | 06051fdefddf25e0bbf983aac40680f835829db7 (patch) | |
| tree | cf8de7f13c788b7651bc03c4ad07e3d7511ae2d1 /arch/blackfin | |
| parent | 2a26a2055259862e771cb922aee3d1196040c205 (diff) | |
| download | lwn-06051fdefddf25e0bbf983aac40680f835829db7.tar.gz lwn-06051fdefddf25e0bbf983aac40680f835829db7.zip | |
bf60x: Add double fault, hardware error and NMI SEC handler
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/include/asm/traps.h | 2 | ||||
| -rw-r--r-- | arch/blackfin/mach-common/ints-priority.c | 34 |
2 files changed, 35 insertions, 1 deletions
diff --git a/arch/blackfin/include/asm/traps.h b/arch/blackfin/include/asm/traps.h index 70c4e511cae6..cec771b8100c 100644 --- a/arch/blackfin/include/asm/traps.h +++ b/arch/blackfin/include/asm/traps.h @@ -125,5 +125,7 @@ level " for Supervisor use: Supervisor only registers, all MMRs, and Supervisor\n" \ level " only instructions.\n" +extern void double_fault_c(struct pt_regs *fp); + #endif /* __ASSEMBLY__ */ #endif /* _BFIN_TRAPS_H */ diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index 5a109a184021..9660d5fdbed4 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -26,6 +26,7 @@ #include <asm/gpio.h> #include <asm/irq_handler.h> #include <asm/dpmc.h> +#include <asm/traps.h> #ifndef SEC_GCTL # define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1)) @@ -413,6 +414,34 @@ void handle_sec_fault(unsigned int irq, struct irq_desc *desc) raw_spin_unlock(&desc->lock); } +void handle_core_fault(unsigned int irq, struct irq_desc *desc) +{ + struct pt_regs *fp = get_irq_regs(); + + raw_spin_lock(&desc->lock); + + switch (irq) { + case IRQ_C0_DBL_FAULT: + double_fault_c(fp); + break; + case IRQ_C0_HW_ERR: + dump_bfin_process(fp); + dump_bfin_mem(fp); + show_regs(fp); + printk(KERN_NOTICE "Kernel Stack\n"); + show_stack(current, NULL); + print_modules(); + panic("Kernel core hardware error"); + break; + case IRQ_C0_NMI_L1_PARITY_ERR: + panic("NMI %d occurs unexpectedly"); + break; + default: + panic("Core 1 fault %d occurs unexpectedly"); + } + + raw_spin_unlock(&desc->lock); +} #endif #ifdef CONFIG_SMP @@ -1522,9 +1551,12 @@ int __init init_arch_irq(void) } else if (irq < BFIN_IRQ(0)) { irq_set_chip_and_handler(irq, &bfin_internal_irqchip, handle_simple_irq); - } else if (irq < CORE_IRQS && irq != IRQ_CGU_EVT) { + } else if (irq == IRQ_SEC_ERR) { irq_set_chip_and_handler(irq, &bfin_sec_irqchip, handle_sec_fault); + } else if (irq < CORE_IRQS && irq >= IRQ_C0_DBL_FAULT) { + irq_set_chip_and_handler(irq, &bfin_sec_irqchip, + handle_core_fault); } else if (irq >= BFIN_IRQ(21) && irq <= BFIN_IRQ(26)) { irq_set_chip(irq, &bfin_sec_irqchip); irq_set_chained_handler(irq, bfin_demux_gpio_irq); |