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- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1995 - 1999 Ralf Baechle
- * Copyright (C) 1999 Silicon Graphics, Inc.
- *
- * Cache error handler
- */
- #include <asm/asm.h>
- #include <asm/regdef.h>
- #include <asm/mipsregs.h>
- #include <asm/stackframe.h>
- /*
- * Game over. Go to the button. Press gently. Swear where allowed by
- * legislation.
- */
- LEAF(except_vec2_generic)
- .set noreorder
- .set noat
- .set mips0
- /*
- * This is a very bad place to be. Our cache error
- * detection has triggered. If we have write-back data
- * in the cache, we may not be able to recover. As a
- * first-order desperate measure, turn off KSEG0 cacheing.
- */
- mfc0 k0,CP0_CONFIG
- li k1,~CONF_CM_CMASK
- and k0,k0,k1
- ori k0,k0,CONF_CM_UNCACHED
- mtc0 k0,CP0_CONFIG
- /* Give it a few cycles to sink in... */
- nop
- nop
- nop
- j cache_parity_error
- nop
- END(except_vec2_generic)
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