diff options
Diffstat (limited to 'arch/mips/mips-boards/malta/malta_int.c')
| -rw-r--r-- | arch/mips/mips-boards/malta/malta_int.c | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/arch/mips/mips-boards/malta/malta_int.c b/arch/mips/mips-boards/malta/malta_int.c index c78d48349600..f010261b75d8 100644 --- a/arch/mips/mips-boards/malta/malta_int.c +++ b/arch/mips/mips-boards/malta/malta_int.c @@ -124,7 +124,7 @@ static void corehi_irqdispatch(void) { unsigned int intedge, intsteer, pcicmd, pcibadaddr; unsigned int pcimstat, intisr, inten, intpol; - unsigned int intrcause,datalo,datahi; + unsigned int intrcause, datalo, datahi; struct pt_regs *regs = get_irq_regs(); printk("CoreHI interrupt, shouldn't happen, so we die here!!!\n"); @@ -178,7 +178,7 @@ static void corehi_irqdispatch(void) static inline int clz(unsigned long x) { - __asm__ ( + __asm__( " .set push \n" " .set mips32 \n" " clz %0, %1 \n" @@ -256,7 +256,7 @@ asmlinkage void plat_irq_dispatch(void) if (irq == MIPSCPU_INT_I8259A) malta_hw0_irqdispatch(); - else if (irq > 0) + else if (irq >= 0) do_IRQ(MIPS_CPU_IRQ_BASE + irq); else spurious_interrupt(); @@ -303,40 +303,52 @@ void __init arch_init_irq(void) case MIPS_REVISION_SCON_SOCIT: case MIPS_REVISION_SCON_ROCIT: if (cpu_has_veic) - init_msc_irqs (MIPS_MSC01_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs); + init_msc_irqs(MIPS_MSC01_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs); else - init_msc_irqs (MIPS_MSC01_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs); + init_msc_irqs(MIPS_MSC01_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs); break; case MIPS_REVISION_SCON_SOCITSC: case MIPS_REVISION_SCON_SOCITSCP: if (cpu_has_veic) - init_msc_irqs (MIPS_SOCITSC_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs); + init_msc_irqs(MIPS_SOCITSC_IC_REG_BASE, MSC01E_INT_BASE, msc_eicirqmap, msc_nr_eicirqs); else - init_msc_irqs (MIPS_SOCITSC_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs); + init_msc_irqs(MIPS_SOCITSC_IC_REG_BASE, MSC01C_INT_BASE, msc_irqmap, msc_nr_irqs); } if (cpu_has_veic) { - set_vi_handler (MSC01E_INT_I8259A, malta_hw0_irqdispatch); - set_vi_handler (MSC01E_INT_COREHI, corehi_irqdispatch); - setup_irq (MSC01E_INT_BASE+MSC01E_INT_I8259A, &i8259irq); - setup_irq (MSC01E_INT_BASE+MSC01E_INT_COREHI, &corehi_irqaction); + set_vi_handler(MSC01E_INT_I8259A, malta_hw0_irqdispatch); + set_vi_handler(MSC01E_INT_COREHI, corehi_irqdispatch); + setup_irq(MSC01E_INT_BASE+MSC01E_INT_I8259A, &i8259irq); + setup_irq(MSC01E_INT_BASE+MSC01E_INT_COREHI, &corehi_irqaction); } else if (cpu_has_vint) { - set_vi_handler (MIPSCPU_INT_I8259A, malta_hw0_irqdispatch); - set_vi_handler (MIPSCPU_INT_COREHI, corehi_irqdispatch); + set_vi_handler(MIPSCPU_INT_I8259A, malta_hw0_irqdispatch); + set_vi_handler(MIPSCPU_INT_COREHI, corehi_irqdispatch); #ifdef CONFIG_MIPS_MT_SMTC - setup_irq_smtc (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq, + setup_irq_smtc(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq, (0x100 << MIPSCPU_INT_I8259A)); - setup_irq_smtc (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, + setup_irq_smtc(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction, (0x100 << MIPSCPU_INT_COREHI)); + /* + * Temporary hack to ensure that the subsidiary device + * interrupts coing in via the i8259A, but associated + * with low IRQ numbers, will restore the Status.IM + * value associated with the i8259A. + */ + { + int i; + + for (i = 0; i < 16; i++) + irq_hwmask[i] = (0x100 << MIPSCPU_INT_I8259A); + } #else /* Not SMTC */ - setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq); - setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction); + setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq); + setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction); #endif /* CONFIG_MIPS_MT_SMTC */ } else { - setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq); - setup_irq (MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction); + setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_I8259A, &i8259irq); + setup_irq(MIPS_CPU_IRQ_BASE+MIPSCPU_INT_COREHI, &corehi_irqaction); } } |