diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2006-04-03 17:56:36 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2006-04-19 04:14:21 +0200 |
| commit | e4ac58afdfac792c0583af30dbd9eae53e24c78b (patch) | |
| tree | 7517bef2c515fc630e4d3d238867b91cde96f558 /arch/mips/tx4938/common/irq.c | |
| parent | d35d473c25d43d7db3e5e18b66d558d2a631cca8 (diff) | |
| download | op-kernel-dev-e4ac58afdfac792c0583af30dbd9eae53e24c78b.zip op-kernel-dev-e4ac58afdfac792c0583af30dbd9eae53e24c78b.tar.gz | |
[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 <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/tx4938/common/irq.c')
| -rw-r--r-- | arch/mips/tx4938/common/irq.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/arch/mips/tx4938/common/irq.c b/arch/mips/tx4938/common/irq.c index 4f90d7fa..8738051 100644 --- a/arch/mips/tx4938/common/irq.c +++ b/arch/mips/tx4938/common/irq.c @@ -392,11 +392,8 @@ tx4938_irq_pic_end(unsigned int irq) void __init tx4938_irq_init(void) { - extern asmlinkage void tx4938_irq_handler(void); - tx4938_irq_cp0_init(); tx4938_irq_pic_init(); - set_except_vector(0, tx4938_irq_handler); return; } @@ -422,3 +419,21 @@ tx4938_irq_nested(void) wbflush(); return (sw_irq); } + +asmlinkage void plat_irq_dispatch(struct pt_regs *regs) +{ + unsigned int pending = read_c0_cause() & read_c0_status(); + + if (pending & STATUSF_IP7) + do_IRQ(TX4938_IRQ_CPU_TIMER, regs); + else if (pending & STATUSF_IP2) { + int irq = tx4938_irq_nested(); + if (irq) + do_IRQ(irq, regs); + else + spurious_interrupt(regs); + } else if (pending & STATUSF_IP1) + do_IRQ(TX4938_IRQ_USER1, regs); + else if (pending & STATUSF_IP0) + do_IRQ(TX4938_IRQ_USER0, regs); +} |
