#include #include #include #include #include #include /* * galileo_handle_int - * We check for the timer first, then check PCI ints A and D. * Then check for serial IRQ and fall through. */ .align 5 NESTED(galileo_handle_int, PT_SIZE, sp) SAVE_ALL CLI .set at mfc0 t0, CP0_CAUSE mfc0 t2, CP0_STATUS and t0, t2 #if 0 andi t1, t0, STATUSF_IP4 /* int2 hardware line (timer) */ .set noreorder bnez t1, ll_galileo_irq andi t1, t0, STATUSF_IP2 /* int0 hardware line */ bnez t1, ll_pci_intA andi t1, t0, STATUSF_IP3 /* int1 hardware line */ bnez t1, ll_pci_intB andi t1, t0, STATUSF_IP4 /* int2 hardware line */ bnez t1, ll_pci_intC andi t1, t0, STATUSF_IP5 /* int3 hardware line */ bnez t1, ll_pci_intD #endif andi t1, t0, STATUSF_IP6 /* int4 hardware line */ bnez t1, ll_galileo_irq #if 0 andi t1, t0, STATUSF_IP7 /* count / compare int */ bnez t1, ll_compare_irq #endif .set reorder /* wrong alarm or masked ... */ j spurious_interrupt nop END(galileo_handle_int) .align 5 ll_galileo_irq: li a0, 4 move a1, sp jal do_IRQ j ret_from_irq .align 5 ll_compare_irq: PRINT("ll_compare_irq\n") li a0, 7 move a1, sp jal do_IRQ j ret_from_irq .align 5 ll_pci_intA: PRINT("ll_pci_intA\n") move a0, sp jal pci_intA j ret_from_irq .align 5 ll_pci_intB: PRINT("ll_pci_intB\n") move a0, sp jal pci_intB j ret_from_irq .align 5 ll_pci_intC: PRINT("ll_pci_intC\n") move a0, sp jal pci_intC j ret_from_irq .align 5 ll_pci_intD: PRINT("ll_pci_intD\n") move a0,sp jal pci_intD j ret_from_irq .align 5 ll_serial_irq: PRINT("ll_serial_irq\n") li a0,6 move a1,sp jal do_IRQ j ret_from_irq