diff options
Diffstat (limited to 'arch/mips/lasat/lasatIRQ.S')
| -rw-r--r-- | arch/mips/lasat/lasatIRQ.S | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/arch/mips/lasat/lasatIRQ.S b/arch/mips/lasat/lasatIRQ.S deleted file mode 100644 index 2a2b0d056561..000000000000 --- a/arch/mips/lasat/lasatIRQ.S +++ /dev/null | |||
| @@ -1,69 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * Carsten Langgaard, carstenl@mips.com | ||
| 3 | * Copyright (C) 1999, 2000 MIPS Technologies, Inc. All rights reserved. | ||
| 4 | * | ||
| 5 | * This program is free software; you can distribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License (Version 2) as | ||
| 7 | * published by the Free Software Foundation. | ||
| 8 | * | ||
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 12 | * for more details. | ||
| 13 | * | ||
| 14 | * You should have received a copy of the GNU General Public License along | ||
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., | ||
| 16 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
| 17 | * | ||
| 18 | * Interrupt exception dispatch code. | ||
| 19 | */ | ||
| 20 | #include <asm/asm.h> | ||
| 21 | #include <asm/mipsregs.h> | ||
| 22 | #include <asm/regdef.h> | ||
| 23 | #include <asm/stackframe.h> | ||
| 24 | |||
| 25 | .text | ||
| 26 | .set noreorder | ||
| 27 | .align 5 | ||
| 28 | NESTED(lasatIRQ, PT_SIZE, sp) | ||
| 29 | .set noat | ||
| 30 | SAVE_ALL | ||
| 31 | CLI | ||
| 32 | .set at | ||
| 33 | .set noreorder | ||
| 34 | |||
| 35 | mfc0 s0, CP0_CAUSE # get irq mask | ||
| 36 | |||
| 37 | /* First we check for r4k counter/timer IRQ. */ | ||
| 38 | andi a0, s0, CAUSEF_IP7 | ||
| 39 | beq a0, zero, 1f | ||
| 40 | andi a0, s0, CAUSEF_IP2 # delay slot, check hw0 interrupt | ||
| 41 | |||
| 42 | /* Wheee, a timer interrupt. */ | ||
| 43 | li a0, 7 | ||
| 44 | jal ll_timer_interrupt | ||
| 45 | move a1, sp | ||
| 46 | |||
| 47 | j ret_from_irq | ||
| 48 | nop | ||
| 49 | |||
| 50 | 1: | ||
| 51 | /* Wheee, combined hardware level zero interrupt. */ | ||
| 52 | jal lasat_hw0_irqdispatch | ||
| 53 | move a0, sp # delay slot | ||
| 54 | |||
| 55 | j ret_from_irq | ||
| 56 | nop # delay slot | ||
| 57 | |||
| 58 | 1: | ||
| 59 | /* | ||
| 60 | * Here by mistake? This is possible, what can happen is that by the | ||
| 61 | * time we take the exception the IRQ pin goes low, so just leave if | ||
| 62 | * this is the case. | ||
| 63 | */ | ||
| 64 | move a1,s0 | ||
| 65 | mfc0 a1, CP0_EPC | ||
| 66 | |||
| 67 | j ret_from_irq | ||
| 68 | nop | ||
| 69 | END(lasatIRQ) | ||