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- #include <asm/asm.h>
- #include <asm/mipsregs.h>
- #include <asm/regdef.h>
- #include <asm/stackframe.h>
- .set noat
- .align 5
- NESTED(ev96100IRQ, PT_SIZE, sp)
- SAVE_ALL
- CLI # Important: mark KERNEL mode !
- mfc0 t0, CP0_CAUSE # get pending interrupts
- mfc0 t1, CP0_STATUS # get enabled interrupts
- and t0, t1 # isolate allowed ones
- # FIX ME add R7000 extensions
- andi t0,0xff00 # isolate pending bits
- andi a0, t0, CAUSEF_IP7
- beq a0, zero, 1f
- move a0, sp
- jal mips_timer_interrupt
- j ret_from_irq
- 1: beqz t0, 3f # spurious interrupt
- move a0, t0
- move a1, sp
- jal ev96100_cpu_irq
- j ret_from_irq
- 3: j spurious_interrupt
- END(ev96100IRQ)
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