From e4ac58afdfac792c0583af30dbd9eae53e24c78b Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 3 Apr 2006 17:56:36 +0100 Subject: [MIPS] Rewrite all the assembler interrupt handlers to C. Saves like 1,600 lines of code, is way easier to debug, compilers frequently do a better job than the cut and paste type of handlers many boards had. And finally having all the stuff done in a single place also means alot of bug potencial for the MT ASE is gone. The only surviving handler in assembler is the DECstation one; I hope Maciej will rewrite it. Signed-off-by: Ralf Baechle --- arch/mips/gt64120/ev64120/irq.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-) (limited to 'arch/mips/gt64120/ev64120/irq.c') diff --git a/arch/mips/gt64120/ev64120/irq.c b/arch/mips/gt64120/ev64120/irq.c index 3b18615..46c468b 100644 --- a/arch/mips/gt64120/ev64120/irq.c +++ b/arch/mips/gt64120/ev64120/irq.c @@ -46,14 +46,22 @@ #include #include -asmlinkage inline void pci_intA(struct pt_regs *regs) +asmlinkage void plat_irq_dispatch(struct pt_regs *regs) { - do_IRQ(GT_INTA, regs); -} - -asmlinkage inline void pci_intD(struct pt_regs *regs) -{ - do_IRQ(GT_INTD, regs); + unsigned int pending = read_c0_status() & read_c0_cause(); + + if (pending & STATUSF_IP4) /* int2 hardware line (timer) */ + do_IRQ(4, regs); + else if (pending & STATUSF_IP2) /* int0 hardware line */ + do_IRQ(GT_INTA, regs); + else if (pending & STATUSF_IP5) /* int3 hardware line */ + do_IRQ(GT_INTD, regs); + else if (pending & STATUSF_IP6) /* int4 hardware line */ + do_IRQ(6, regs); + else if (pending & STATUSF_IP7) /* compare int */ + do_IRQ(7, regs); + else + spurious_interrupt(regs); } static void disable_ev64120_irq(unsigned int irq_nr) @@ -109,16 +117,11 @@ static struct hw_interrupt_type ev64120_irq_type = { void gt64120_irq_setup(void) { - extern asmlinkage void galileo_handle_int(void); - /* * Clear all of the interrupts while we change the able around a bit. */ clear_c0_status(ST0_IM); - /* Sets the exception_handler array. */ - set_except_vector(0, galileo_handle_int); - local_irq_disable(); /* -- cgit v1.1