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-rw-r--r--arch/mn10300/mm/cache-flush-by-reg.S308
1 files changed, 0 insertions, 308 deletions
diff --git a/arch/mn10300/mm/cache-flush-by-reg.S b/arch/mn10300/mm/cache-flush-by-reg.S
deleted file mode 100644
index 1dcae0211671..000000000000
--- a/arch/mn10300/mm/cache-flush-by-reg.S
+++ /dev/null
@@ -1,308 +0,0 @@
-/* MN10300 CPU core caching routines, using indirect regs on cache controller
- *
- * 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.
- */
-
-#include <linux/sys.h>
-#include <linux/linkage.h>
-#include <asm/smp.h>
-#include <asm/page.h>
-#include <asm/cache.h>
-#include <asm/irqflags.h>
-
- .am33_2
-
-#ifndef CONFIG_SMP
- .globl mn10300_dcache_flush
- .globl mn10300_dcache_flush_page
- .globl mn10300_dcache_flush_range
- .globl mn10300_dcache_flush_range2
- .globl mn10300_dcache_flush_inv
- .globl mn10300_dcache_flush_inv_page
- .globl mn10300_dcache_flush_inv_range
- .globl mn10300_dcache_flush_inv_range2
-
-mn10300_dcache_flush = mn10300_local_dcache_flush
-mn10300_dcache_flush_page = mn10300_local_dcache_flush_page
-mn10300_dcache_flush_range = mn10300_local_dcache_flush_range
-mn10300_dcache_flush_range2 = mn10300_local_dcache_flush_range2
-mn10300_dcache_flush_inv = mn10300_local_dcache_flush_inv
-mn10300_dcache_flush_inv_page = mn10300_local_dcache_flush_inv_page
-mn10300_dcache_flush_inv_range = mn10300_local_dcache_flush_inv_range
-mn10300_dcache_flush_inv_range2 = mn10300_local_dcache_flush_inv_range2
-
-#endif /* !CONFIG_SMP */
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush(void)
-# Flush the entire data cache back to RAM
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush
- .type mn10300_local_dcache_flush,@function
-mn10300_local_dcache_flush:
- movhu (CHCTR),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_flush_end
-
- mov DCPGCR,a0
-
- LOCAL_CLI_SAVE(d1)
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- # set mask
- clr d0
- mov d0,(DCPGMR)
-
- # area purge
- #
- # DCPGCR = DCPGCR_DCP
- #
- mov DCPGCR_DCP,d0
- mov d0,(a0)
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- LOCAL_IRQ_RESTORE(d1)
-
-mn10300_local_dcache_flush_end:
- ret [],0
- .size mn10300_local_dcache_flush,.-mn10300_local_dcache_flush
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_page(unsigned long start)
-# void mn10300_local_dcache_flush_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_flush_range2(unsigned long start, unsigned long size)
-# Flush a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_page
- .globl mn10300_local_dcache_flush_range
- .globl mn10300_local_dcache_flush_range2
- .type mn10300_local_dcache_flush_page,@function
- .type mn10300_local_dcache_flush_range,@function
- .type mn10300_local_dcache_flush_range2,@function
-mn10300_local_dcache_flush_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_flush_range2:
- add d0,d1
-mn10300_local_dcache_flush_range:
- movm [d2,d3,a2],(sp)
-
- movhu (CHCTR),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_flush_range_end
-
- # calculate alignsize
- #
- # alignsize = L1_CACHE_BYTES;
- # for (i = (end - start - 1) / L1_CACHE_BYTES ; i > 0; i >>= 1)
- # alignsize <<= 1;
- # d2 = alignsize;
- #
- mov L1_CACHE_BYTES,d2
- sub d0,d1,d3
- add -1,d3
- lsr L1_CACHE_SHIFT,d3
- beq 2f
-1:
- add d2,d2
- lsr 1,d3
- bne 1b
-2:
- mov d1,a1 # a1 = end
-
- LOCAL_CLI_SAVE(d3)
- mov DCPGCR,a0
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # determine the mask
- mov d2,d1
- add -1,d1
- not d1 # d1 = mask = ~(alignsize-1)
- mov d1,(DCPGMR)
-
- and d1,d0,a2 # a2 = mask & start
-
-dcpgloop:
- # area purge
- mov a2,d0
- or DCPGCR_DCP,d0
- mov d0,(a0) # DCPGCR = (mask & start) | DCPGCR_DCP
-
- # wait for busy bit of area purge
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # check purge of end address
- add d2,a2 # a2 += alignsize
- cmp a1,a2 # if (a2 < end) goto dcpgloop
- bns dcpgloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_dcache_flush_range_end:
- ret [d2,d3,a2],12
-
- .size mn10300_local_dcache_flush_page,.-mn10300_local_dcache_flush_page
- .size mn10300_local_dcache_flush_range,.-mn10300_local_dcache_flush_range
- .size mn10300_local_dcache_flush_range2,.-mn10300_local_dcache_flush_range2
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_inv(void)
-# Flush the entire data cache and invalidate all entries
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_inv
- .type mn10300_local_dcache_flush_inv,@function
-mn10300_local_dcache_flush_inv:
- movhu (CHCTR),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_flush_inv_end
-
- mov DCPGCR,a0
-
- LOCAL_CLI_SAVE(d1)
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- # set the mask to cover everything
- clr d0
- mov d0,(DCPGMR)
-
- # area purge & invalidate
- mov DCPGCR_DCP|DCPGCR_DCI,d0
- mov d0,(a0)
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- LOCAL_IRQ_RESTORE(d1)
-
-mn10300_local_dcache_flush_inv_end:
- ret [],0
- .size mn10300_local_dcache_flush_inv,.-mn10300_local_dcache_flush_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_flush_inv_page(unsigned long start)
-# void mn10300_local_dcache_flush_inv_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_flush_inv_range2(unsigned long start, unsigned long size)
-# Flush and invalidate a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_flush_inv_page
- .globl mn10300_local_dcache_flush_inv_range
- .globl mn10300_local_dcache_flush_inv_range2
- .type mn10300_local_dcache_flush_inv_page,@function
- .type mn10300_local_dcache_flush_inv_range,@function
- .type mn10300_local_dcache_flush_inv_range2,@function
-mn10300_local_dcache_flush_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_flush_inv_range2:
- add d0,d1
-mn10300_local_dcache_flush_inv_range:
- movm [d2,d3,a2],(sp)
-
- movhu (CHCTR),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_flush_inv_range_end
-
- # calculate alignsize
- #
- # alignsize = L1_CACHE_BYTES;
- # for (i = (end - start - 1) / L1_CACHE_BYTES; i > 0; i >>= 1)
- # alignsize <<= 1;
- # d2 = alignsize
- #
- mov L1_CACHE_BYTES,d2
- sub d0,d1,d3
- add -1,d3
- lsr L1_CACHE_SHIFT,d3
- beq 2f
-1:
- add d2,d2
- lsr 1,d3
- bne 1b
-2:
- mov d1,a1 # a1 = end
-
- LOCAL_CLI_SAVE(d3)
- mov DCPGCR,a0
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # set the mask
- mov d2,d1
- add -1,d1
- not d1 # d1 = mask = ~(alignsize-1)
- mov d1,(DCPGMR)
-
- and d1,d0,a2 # a2 = mask & start
-
-dcpgivloop:
- # area purge & invalidate
- mov a2,d0
- or DCPGCR_DCP|DCPGCR_DCI,d0
- mov d0,(a0) # DCPGCR = (mask & start)|DCPGCR_DCP|DCPGCR_DCI
-
- # wait for busy bit of area purge & invalidate
- setlb
- mov (a0),d1
- btst DCPGCR_DCPGBSY,d1
- lne
-
- # check purge & invalidate of end address
- add d2,a2 # a2 += alignsize
- cmp a1,a2 # if (a2 < end) goto dcpgivloop
- bns dcpgivloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_dcache_flush_inv_range_end:
- ret [d2,d3,a2],12
- .size mn10300_local_dcache_flush_inv_page,.-mn10300_local_dcache_flush_inv_page
- .size mn10300_local_dcache_flush_inv_range,.-mn10300_local_dcache_flush_inv_range
- .size mn10300_local_dcache_flush_inv_range2,.-mn10300_local_dcache_flush_inv_range2