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-rw-r--r--arch/mn10300/mm/cache-inv-by-reg.S350
1 files changed, 0 insertions, 350 deletions
diff --git a/arch/mn10300/mm/cache-inv-by-reg.S b/arch/mn10300/mm/cache-inv-by-reg.S
deleted file mode 100644
index a60825b91e77..000000000000
--- a/arch/mn10300/mm/cache-inv-by-reg.S
+++ /dev/null
@@ -1,350 +0,0 @@
-/* MN10300 CPU cache invalidation routines, using automatic purge registers
- *
- * 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>
-#include <asm/cacheflush.h>
-#include "cache.inc"
-
-#define mn10300_local_dcache_inv_range_intr_interval \
- +((1 << MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL) - 1)
-
-#if mn10300_local_dcache_inv_range_intr_interval > 0xff
-#error MN10300_DCACHE_INV_RANGE_INTR_LOG2_INTERVAL must be 8 or less
-#endif
-
- .am33_2
-
-#ifndef CONFIG_SMP
- .globl mn10300_icache_inv
- .globl mn10300_icache_inv_page
- .globl mn10300_icache_inv_range
- .globl mn10300_icache_inv_range2
- .globl mn10300_dcache_inv
- .globl mn10300_dcache_inv_page
- .globl mn10300_dcache_inv_range
- .globl mn10300_dcache_inv_range2
-
-mn10300_icache_inv = mn10300_local_icache_inv
-mn10300_icache_inv_page = mn10300_local_icache_inv_page
-mn10300_icache_inv_range = mn10300_local_icache_inv_range
-mn10300_icache_inv_range2 = mn10300_local_icache_inv_range2
-mn10300_dcache_inv = mn10300_local_dcache_inv
-mn10300_dcache_inv_page = mn10300_local_dcache_inv_page
-mn10300_dcache_inv_range = mn10300_local_dcache_inv_range
-mn10300_dcache_inv_range2 = mn10300_local_dcache_inv_range2
-
-#endif /* !CONFIG_SMP */
-
-###############################################################################
-#
-# void mn10300_local_icache_inv(void)
-# Invalidate the entire icache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_icache_inv
- .type mn10300_local_icache_inv,@function
-mn10300_local_icache_inv:
- mov CHCTR,a0
-
- movhu (a0),d0
- btst CHCTR_ICEN,d0
- beq mn10300_local_icache_inv_end
-
- invalidate_icache 1
-
-mn10300_local_icache_inv_end:
- ret [],0
- .size mn10300_local_icache_inv,.-mn10300_local_icache_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_inv(void)
-# Invalidate the entire dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_inv
- .type mn10300_local_dcache_inv,@function
-mn10300_local_dcache_inv:
- mov CHCTR,a0
-
- movhu (a0),d0
- btst CHCTR_DCEN,d0
- beq mn10300_local_dcache_inv_end
-
- invalidate_dcache 1
-
-mn10300_local_dcache_inv_end:
- ret [],0
- .size mn10300_local_dcache_inv,.-mn10300_local_dcache_inv
-
-###############################################################################
-#
-# void mn10300_local_dcache_inv_range(unsigned long start, unsigned long end)
-# void mn10300_local_dcache_inv_range2(unsigned long start, unsigned long size)
-# void mn10300_local_dcache_inv_page(unsigned long start)
-# Invalidate a range of addresses on a page in the dcache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_dcache_inv_page
- .globl mn10300_local_dcache_inv_range
- .globl mn10300_local_dcache_inv_range2
- .type mn10300_local_dcache_inv_page,@function
- .type mn10300_local_dcache_inv_range,@function
- .type mn10300_local_dcache_inv_range2,@function
-mn10300_local_dcache_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_dcache_inv_range2:
- add d0,d1
-mn10300_local_dcache_inv_range:
- # If we are in writeback mode we check the start and end alignments,
- # and if they're not cacheline-aligned, we must flush any bits outside
- # the range that share cachelines with stuff inside the range
-#ifdef CONFIG_MN10300_CACHE_WBACK
- btst ~L1_CACHE_TAG_MASK,d0
- bne 1f
- btst ~L1_CACHE_TAG_MASK,d1
- beq 2f
-1:
- bra mn10300_local_dcache_flush_inv_range
-2:
-#endif /* CONFIG_MN10300_CACHE_WBACK */
-
- movm [d2,d3,a2],(sp)
-
- mov CHCTR,a0
- movhu (a0),d2
- btst CHCTR_DCEN,d2
- beq mn10300_local_dcache_inv_range_end
-
- # round the addresses out to be full cachelines, unless we're in
- # writeback mode, in which case we would be in flush and invalidate by
- # now
-#ifndef CONFIG_MN10300_CACHE_WBACK
- and L1_CACHE_TAG_MASK,d0 # round start addr down
-
- mov L1_CACHE_BYTES-1,d2
- add d2,d1
- and L1_CACHE_TAG_MASK,d1 # round end addr up
-#endif /* !CONFIG_MN10300_CACHE_WBACK */
-
- sub d0,d1,d2 # calculate the total size
- mov d0,a2 # A2 = start address
- mov d1,a1 # A1 = end address
-
- LOCAL_CLI_SAVE(d3)
-
- mov DCPGCR,a0 # make sure the purger isn't busy
- setlb
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- # skip initial address alignment calculation if address is zero
- mov d2,d1
- cmp 0,a2
- beq 1f
-
-dcivloop:
- /* calculate alignsize
- *
- * alignsize = L1_CACHE_BYTES;
- * while (! start & alignsize) {
- * alignsize <<=1;
- * }
- * d1 = alignsize;
- */
- mov L1_CACHE_BYTES,d1
- lsr 1,d1
- setlb
- add d1,d1
- mov d1,d0
- and a2,d0
- leq
-
-1:
- /* calculate invsize
- *
- * if (totalsize > alignsize) {
- * invsize = alignsize;
- * } else {
- * invsize = totalsize;
- * tmp = 0x80000000;
- * while (! invsize & tmp) {
- * tmp >>= 1;
- * }
- * invsize = tmp;
- * }
- * d1 = invsize
- */
- cmp d2,d1
- bns 2f
- mov d2,d1
-
- mov 0x80000000,d0 # start from 31bit=1
- setlb
- lsr 1,d0
- mov d0,e0
- and d1,e0
- leq
- mov d0,d1
-
-2:
- /* set mask
- *
- * mask = ~(invsize-1);
- * DCPGMR = mask;
- */
- mov d1,d0
- add -1,d0
- not d0
- mov d0,(DCPGMR)
-
- # invalidate area
- mov a2,d0
- or DCPGCR_DCI,d0
- mov d0,(a0) # DCPGCR = (mask & start) | DCPGCR_DCI
-
- setlb # wait for the purge to complete
- mov (a0),d0
- btst DCPGCR_DCPGBSY,d0
- lne
-
- sub d1,d2 # decrease size remaining
- add d1,a2 # increase next start address
-
- /* check invalidating of end address
- *
- * a2 = a2 + invsize
- * if (a2 < end) {
- * goto dcivloop;
- * } */
- cmp a1,a2
- bns dcivloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_dcache_inv_range_end:
- ret [d2,d3,a2],12
- .size mn10300_local_dcache_inv_page,.-mn10300_local_dcache_inv_page
- .size mn10300_local_dcache_inv_range,.-mn10300_local_dcache_inv_range
- .size mn10300_local_dcache_inv_range2,.-mn10300_local_dcache_inv_range2
-
-###############################################################################
-#
-# void mn10300_local_icache_inv_page(unsigned long start)
-# void mn10300_local_icache_inv_range2(unsigned long start, unsigned long size)
-# void mn10300_local_icache_inv_range(unsigned long start, unsigned long end)
-# Invalidate a range of addresses on a page in the icache
-#
-###############################################################################
- ALIGN
- .globl mn10300_local_icache_inv_page
- .globl mn10300_local_icache_inv_range
- .globl mn10300_local_icache_inv_range2
- .type mn10300_local_icache_inv_page,@function
- .type mn10300_local_icache_inv_range,@function
- .type mn10300_local_icache_inv_range2,@function
-mn10300_local_icache_inv_page:
- and ~(PAGE_SIZE-1),d0
- mov PAGE_SIZE,d1
-mn10300_local_icache_inv_range2:
- add d0,d1
-mn10300_local_icache_inv_range:
- movm [d2,d3,a2],(sp)
-
- mov CHCTR,a0
- movhu (a0),d2
- btst CHCTR_ICEN,d2
- beq mn10300_local_icache_inv_range_reg_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:
-
- /* a1 = end */
- mov d1,a1
-
- LOCAL_CLI_SAVE(d3)
-
- mov ICIVCR,a0
- /* wait for busy bit of area invalidation */
- setlb
- mov (a0),d1
- btst ICIVCR_ICIVBSY,d1
- lne
-
- /* set mask
- *
- * mask = ~(alignsize-1);
- * ICIVMR = mask;
- */
- mov d2,d1
- add -1,d1
- not d1
- mov d1,(ICIVMR)
- /* a2 = mask & start */
- and d1,d0,a2
-
-icivloop:
- /* area invalidate
- *
- * ICIVCR = (mask & start) | ICIVCR_ICI
- */
- mov a2,d0
- or ICIVCR_ICI,d0
- mov d0,(a0)
-
- /* wait for busy bit of area invalidation */
- setlb
- mov (a0),d1
- btst ICIVCR_ICIVBSY,d1
- lne
-
- /* check invalidating of end address
- *
- * a2 = a2 + alignsize
- * if (a2 < end) {
- * goto icivloop;
- * } */
- add d2,a2
- cmp a1,a2
- bns icivloop
-
- LOCAL_IRQ_RESTORE(d3)
-
-mn10300_local_icache_inv_range_reg_end:
- ret [d2,d3,a2],12
- .size mn10300_local_icache_inv_page,.-mn10300_local_icache_inv_page
- .size mn10300_local_icache_inv_range,.-mn10300_local_icache_inv_range
- .size mn10300_local_icache_inv_range2,.-mn10300_local_icache_inv_range2
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