diff options
| -rw-r--r-- | arch/blackfin/mach-common/ints-priority.c | 112 |
1 files changed, 44 insertions, 68 deletions
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c index 59e0efc..01926e5 100644 --- a/arch/blackfin/mach-common/ints-priority.c +++ b/arch/blackfin/mach-common/ints-priority.c @@ -1304,50 +1304,54 @@ int __init init_arch_irq(void) #ifdef CONFIG_DO_IRQ_L1 __attribute__((l1_text)) #endif -void do_irq(int vec, struct pt_regs *fp) +static int vec_to_irq(int vec) { - if (vec == EVT_IVTMR_P) { - vec = IRQ_CORETMR; - } else { - struct ivgx *ivg = ivg7_13[vec - IVG7].ifirst; - struct ivgx *ivg_stop = ivg7_13[vec - IVG7].istop; -#if defined(SIC_ISR0) - unsigned long sic_status[3]; + struct ivgx *ivg = ivg7_13[vec - IVG7].ifirst; + struct ivgx *ivg_stop = ivg7_13[vec - IVG7].istop; + unsigned long sic_status[3]; + + if (likely(vec == EVT_IVTMR_P)) + return IRQ_CORETMR; - if (smp_processor_id()) { +#ifdef SIC_ISR + sic_status[0] = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR(); +#else + if (smp_processor_id()) { # ifdef SICB_ISR0 - /* This will be optimized out in UP mode. */ - sic_status[0] = bfin_read_SICB_ISR0() & bfin_read_SICB_IMASK0(); - sic_status[1] = bfin_read_SICB_ISR1() & bfin_read_SICB_IMASK1(); + /* This will be optimized out in UP mode. */ + sic_status[0] = bfin_read_SICB_ISR0() & bfin_read_SICB_IMASK0(); + sic_status[1] = bfin_read_SICB_ISR1() & bfin_read_SICB_IMASK1(); # endif - } else { - sic_status[0] = bfin_read_SIC_ISR0() & bfin_read_SIC_IMASK0(); - sic_status[1] = bfin_read_SIC_ISR1() & bfin_read_SIC_IMASK1(); - } -# ifdef SIC_ISR2 - sic_status[2] = bfin_read_SIC_ISR2() & bfin_read_SIC_IMASK2(); -# endif - for (;; ivg++) { - if (ivg >= ivg_stop) - return; - if (sic_status[(ivg->irqno - IVG7) / 32] & ivg->isrflag) - break; - } -#else - unsigned long sic_status; - - sic_status = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR(); + } else { + sic_status[0] = bfin_read_SIC_ISR0() & bfin_read_SIC_IMASK0(); + sic_status[1] = bfin_read_SIC_ISR1() & bfin_read_SIC_IMASK1(); + } +#endif +#ifdef SIC_ISR2 + sic_status[2] = bfin_read_SIC_ISR2() & bfin_read_SIC_IMASK2(); +#endif - for (;; ivg++) { - if (ivg >= ivg_stop) - return; - if (sic_status & ivg->isrflag) - break; - } + for (;; ivg++) { + if (ivg >= ivg_stop) + return -1; +#ifdef SIC_ISR + if (sic_status[0] & ivg->isrflag) +#else + if (sic_status[(ivg->irqno - IVG7) / 32] & ivg->isrflag) #endif - vec = ivg->irqno; + return ivg->irqno; } - asm_do_IRQ(vec, fp); +} + +#ifdef CONFIG_DO_IRQ_L1 +__attribute__((l1_text)) +#endif +void do_irq(int vec, struct pt_regs *fp) +{ + int irq = vec_to_irq(vec); + if (irq == -1) + return; + asm_do_IRQ(irq, fp); } #ifdef CONFIG_IPIPE @@ -1385,37 +1389,9 @@ asmlinkage int __ipipe_grab_irq(int vec, struct pt_regs *regs) struct ivgx *ivg = ivg7_13[vec-IVG7].ifirst; int irq, s = 0; - if (likely(vec == EVT_IVTMR_P)) - irq = IRQ_CORETMR; - else { -#if defined(SIC_ISR0) - unsigned long sic_status[3]; - - sic_status[0] = bfin_read_SIC_ISR0() & bfin_read_SIC_IMASK0(); - sic_status[1] = bfin_read_SIC_ISR1() & bfin_read_SIC_IMASK1(); -# ifdef SIC_ISR2 - sic_status[2] = bfin_read_SIC_ISR2() & bfin_read_SIC_IMASK2(); -# endif - for (;; ivg++) { - if (ivg >= ivg_stop) - return 0; - if (sic_status[(ivg->irqno - IVG7) / 32] & ivg->isrflag) - break; - } -#else - unsigned long sic_status; - - sic_status = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR(); - - for (;; ivg++) { - if (ivg >= ivg_stop) - return 0; - if (sic_status & ivg->isrflag) - break; - } -#endif - irq = ivg->irqno; - } + irq = vec_to_irq(vec); + if (irq == -1) + return 0; if (irq == IRQ_SYSTMR) { #if !defined(CONFIG_GENERIC_CLOCKEVENTS) || defined(CONFIG_TICKSOURCE_GPTMR0) |