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/lasat/lasatIRQ.S | |
| parent | d35d473c25d43d7db3e5e18b66d558d2a631cca8 (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/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 @@ -/* - * Carsten Langgaard, carstenl@mips.com - * Copyright (C) 1999, 2000 MIPS Technologies, Inc. All rights reserved. - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * Interrupt exception dispatch code. - */ -#include <asm/asm.h> -#include <asm/mipsregs.h> -#include <asm/regdef.h> -#include <asm/stackframe.h> - - .text - .set noreorder - .align 5 - NESTED(lasatIRQ, PT_SIZE, sp) - .set noat - SAVE_ALL - CLI - .set at - .set noreorder - - mfc0 s0, CP0_CAUSE # get irq mask - - /* First we check for r4k counter/timer IRQ. */ - andi a0, s0, CAUSEF_IP7 - beq a0, zero, 1f - andi a0, s0, CAUSEF_IP2 # delay slot, check hw0 interrupt - - /* Wheee, a timer interrupt. */ - li a0, 7 - jal ll_timer_interrupt - move a1, sp - - j ret_from_irq - nop - -1: - /* Wheee, combined hardware level zero interrupt. */ - jal lasat_hw0_irqdispatch - move a0, sp # delay slot - - j ret_from_irq - nop # delay slot - -1: - /* - * Here by mistake? This is possible, what can happen is that by the - * time we take the exception the IRQ pin goes low, so just leave if - * this is the case. - */ - move a1,s0 - mfc0 a1, CP0_EPC - - j ret_from_irq - nop - END(lasatIRQ) |