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Eliminate some duplicated code here (similar to XScale code): 

* sa110_cache_purgeD() is the same as sa110_cache_cleanD() on the
  SA-1 -- make it an alias.
* sa110_cache_syncI() and sa110_cache_purgeID() are identical to
  sa110_cache_cleanD() on the SA-1, with the exception that the
  I-cache must also be flushed.  Save code duplication by moving
  the I-cache flush before the D-cache clean and letting it fall
  through.
This commit is contained in:
thorpej 2001-11-14 00:08:05 +00:00
parent 23b305bcfa
commit 91f49d269d
1 changed files with 7 additions and 39 deletions
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46
sys/arch/arm/arm/cpufunc_asm_sa1.S
View File

@ -1,4 +1,4 @@
/* $NetBSD: cpufunc_asm_sa1.S,v 1.3 2001/11/11 01:02:58 thorpej Exp $ */ /* $NetBSD: cpufunc_asm_sa1.S,v 1.4 2001/11/14 00:08:05 thorpej Exp $ */
/* /*
* Copyright (c) 1997,1998 Mark Brinicombe. * Copyright (c) 1997,1998 Mark Brinicombe.
@ -173,7 +173,11 @@ Lsa110_cache_clean_size:
#define SA1_CACHE_CLEAN_EPILOGUE \ #define SA1_CACHE_CLEAN_EPILOGUE \
SA1_CACHE_CLEAN_UNBLOCK SA1_CACHE_CLEAN_UNBLOCK
ENTRY(sa110_cache_cleanID) ENTRY_NP(sa110_cache_syncI)
ENTRY_NP(sa110_cache_purgeID)
mcr p15, 0, r0, c7, c5, 0 /* flush I cache (D cleaned below) */
ENTRY_NP(sa110_cache_cleanID)
ENTRY_NP(sa110_cache_purgeD)
ENTRY(sa110_cache_cleanD) ENTRY(sa110_cache_cleanD)
SA1_CACHE_CLEAN_PROLOGUE SA1_CACHE_CLEAN_PROLOGUE
@ -186,31 +190,6 @@ ENTRY(sa110_cache_cleanD)
SA1_CACHE_CLEAN_EPILOGUE SA1_CACHE_CLEAN_EPILOGUE
mov pc, lr mov pc, lr
ENTRY(sa110_cache_purgeID)
SA1_CACHE_CLEAN_PROLOGUE
1: ldr r2, [r0], #32
subs r1, r1, #32
bne 1b
mcr p15, 0, r0, c7, c10, 4 /* drain write buffer */
mcr p15, 0, r0, c7, c5, 0 /* flush I cache (D flushed above) */
SA1_CACHE_CLEAN_EPILOGUE
mov pc, lr
ENTRY(sa110_cache_purgeD)
SA1_CACHE_CLEAN_PROLOGUE
1: ldr r2, [r0], #32
subs r1, r1, #32
bne 1b
mcr p15, 0, r0, c7, c10, 4 /* drain write buffer */
SA1_CACHE_CLEAN_EPILOGUE
mov pc, lr
ENTRY(sa110_cache_purgeID_E) ENTRY(sa110_cache_purgeID_E)
mcr p15, 0, r0, c7, c10, 1 /* clean dcache entry */ mcr p15, 0, r0, c7, c10, 1 /* clean dcache entry */
mcr p15, 0, r0, c7, c10, 4 /* drain write buffer */ mcr p15, 0, r0, c7, c10, 4 /* drain write buffer */
@ -227,18 +206,7 @@ ENTRY(sa110_cache_purgeD_E)
/* /*
* Soft functions * Soft functions
*/ */
ENTRY(sa110_cache_syncI) /* sa110_cache_syncI is identical to sa110_cache_purgeID */
SA1_CACHE_CLEAN_PROLOGUE
1: ldr r2, [r0], #32
subs r1, r1, #32
bne 1b
mcr p15, 0, r0, c7, c10, 4 /* drain write buffer */
mcr p15, 0, r0, c7, c5, 0 /* flush I cache */
SA1_CACHE_CLEAN_EPILOGUE
mov pc, lr
ENTRY(sa110_cache_cleanID_rng) ENTRY(sa110_cache_cleanID_rng)
ENTRY(sa110_cache_cleanD_rng) ENTRY(sa110_cache_cleanD_rng)