diff options
Diffstat (limited to 'arch/mn10300/mm/cache.inc')
| -rw-r--r-- | arch/mn10300/mm/cache.inc | 133 |
1 files changed, 0 insertions, 133 deletions
diff --git a/arch/mn10300/mm/cache.inc b/arch/mn10300/mm/cache.inc deleted file mode 100644 index 394a119b9c73..000000000000 --- a/arch/mn10300/mm/cache.inc +++ /dev/null @@ -1,133 +0,0 @@ -/* MN10300 CPU core caching macros -*- asm -*- - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ - - -############################################################################### -# -# Invalidate the instruction cache. -# A0: Should hold CHCTR -# D0: Should have been read from CHCTR -# D1: Will be clobbered -# -# On some cores it is necessary to disable the icache whilst we do this. -# -############################################################################### - .macro invalidate_icache,disable_irq - -#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3) - .if \disable_irq - # don't want an interrupt routine seeing a disabled cache - mov epsw,d1 - and ~EPSW_IE,epsw - or EPSW_NMID,epsw - nop - nop - .endif - - # disable the icache - and ~CHCTR_ICEN,d0 - movhu d0,(a0) - - # and wait for it to calm down - setlb - movhu (a0),d0 - btst CHCTR_ICBUSY,d0 - lne - - # invalidate - or CHCTR_ICINV,d0 - movhu d0,(a0) - - # wait for the cache to finish - setlb - movhu (a0),d0 - btst CHCTR_ICBUSY,d0 - lne - - # and reenable it - or CHCTR_ICEN,d0 - movhu d0,(a0) - movhu (a0),d0 - - .if \disable_irq - LOCAL_IRQ_RESTORE(d1) - .endif - -#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - - # invalidate - or CHCTR_ICINV,d0 - movhu d0,(a0) - movhu (a0),d0 - -#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - .endm - -############################################################################### -# -# Invalidate the data cache. -# A0: Should hold CHCTR -# D0: Should have been read from CHCTR -# D1: Will be clobbered -# -# On some cores it is necessary to disable the dcache whilst we do this. -# -############################################################################### - .macro invalidate_dcache,disable_irq - -#if defined(CONFIG_AM33_2) || defined(CONFIG_AM33_3) - .if \disable_irq - # don't want an interrupt routine seeing a disabled cache - mov epsw,d1 - and ~EPSW_IE,epsw - or EPSW_NMID,epsw - nop - nop - .endif - - # disable the dcache - and ~CHCTR_DCEN,d0 - movhu d0,(a0) - - # and wait for it to calm down - setlb - movhu (a0),d0 - btst CHCTR_DCBUSY,d0 - lne - - # invalidate - or CHCTR_DCINV,d0 - movhu d0,(a0) - - # wait for the cache to finish - setlb - movhu (a0),d0 - btst CHCTR_DCBUSY,d0 - lne - - # and reenable it - or CHCTR_DCEN,d0 - movhu d0,(a0) - movhu (a0),d0 - - .if \disable_irq - LOCAL_IRQ_RESTORE(d1) - .endif - -#else /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - - # invalidate - or CHCTR_DCINV,d0 - movhu d0,(a0) - movhu (a0),d0 - -#endif /* CONFIG_AM33_2 || CONFIG_AM33_3 */ - .endm |
