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authorRalf Baechle <ralf@linux-mips.org>2006-04-03 12:56:36 -0400
committerRalf Baechle <ralf@linux-mips.org>2006-04-18 22:14:21 -0400
commite4ac58afdfac792c0583af30dbd9eae53e24c78b (patch)
tree7517bef2c515fc630e4d3d238867b91cde96f558 /arch/mips/dec
parentd35d473c25d43d7db3e5e18b66d558d2a631cca8 (diff)
[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/dec')
-rw-r--r--arch/mips/dec/int-handler.S10
-rw-r--r--arch/mips/dec/setup.c3
2 files changed, 3 insertions, 10 deletions
diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S
index 5bafd585ac3e..e8ec93e33fe6 100644
--- a/arch/mips/dec/int-handler.S
+++ b/arch/mips/dec/int-handler.S
@@ -36,7 +36,7 @@
36 .text 36 .text
37 .set noreorder 37 .set noreorder
38/* 38/*
39 * decstation_handle_int: Interrupt handler for DECstations 39 * plat_irq_dispatch: Interrupt handler for DECstations
40 * 40 *
41 * We follow the model in the Indy interrupt code by David Miller, where he 41 * We follow the model in the Indy interrupt code by David Miller, where he
42 * says: a lot of complication here is taken away because: 42 * says: a lot of complication here is taken away because:
@@ -125,11 +125,7 @@
125 * just take another exception, big deal. 125 * just take another exception, big deal.
126 */ 126 */
127 .align 5 127 .align 5
128 NESTED(decstation_handle_int, PT_SIZE, ra) 128 NESTED(plat_irq_dispatch, PT_SIZE, ra)
129 .set noat
130 SAVE_ALL
131 CLI # TEST: interrupts should be off
132 .set at
133 .set noreorder 129 .set noreorder
134 130
135 /* 131 /*
@@ -286,7 +282,7 @@ spurious:
286 nop 282 nop
287 j ret_from_irq 283 j ret_from_irq
288 nop 284 nop
289 END(decstation_handle_int) 285 END(plat_irq_dispatch)
290 286
291/* 287/*
292 * Generic unimplemented interrupt routines -- cpu_mask_nr_tbl 288 * Generic unimplemented interrupt routines -- cpu_mask_nr_tbl
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index 7c1ca8f6330e..ad5d436d80c1 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -48,8 +48,6 @@ extern void dec_machine_halt(void);
48extern void dec_machine_power_off(void); 48extern void dec_machine_power_off(void);
49extern irqreturn_t dec_intr_halt(int irq, void *dev_id, struct pt_regs *regs); 49extern irqreturn_t dec_intr_halt(int irq, void *dev_id, struct pt_regs *regs);
50 50
51extern asmlinkage void decstation_handle_int(void);
52
53unsigned long dec_kn_slot_base, dec_kn_slot_size; 51unsigned long dec_kn_slot_base, dec_kn_slot_size;
54 52
55EXPORT_SYMBOL(dec_kn_slot_base); 53EXPORT_SYMBOL(dec_kn_slot_base);
@@ -744,7 +742,6 @@ void __init arch_init_irq(void)
744 panic("Don't know how to set this up!"); 742 panic("Don't know how to set this up!");
745 break; 743 break;
746 } 744 }
747 set_except_vector(0, decstation_handle_int);
748 745
749 /* Free the FPU interrupt if the exception is present. */ 746 /* Free the FPU interrupt if the exception is present. */
750 if (!cpu_has_nofpuex) { 747 if (!cpu_has_nofpuex) {