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Fix range for cache cleans

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@11928 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Greg White 2007-01-06 02:48:26 +00:00
parent ebcd762fb2
commit 45bef7d914
1 changed files with 4 additions and 5 deletions
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9
firmware/target/arm/gigabeat/meg-fx/mmu-meg-fx.c
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@ -87,15 +87,14 @@ static void enable_mmu(void) {
/* Invalidate DCache for this range */
/* Will do write back */
void invalidate_dcache_range(const void *base, unsigned int size) {
unsigned int addr = (int) base;
unsigned int end = addr+size;
unsigned int addr = ((int) base) & ~31;
unsigned int end = addr+size+32;
asm volatile(
"bic %0, %0, #31 \n"
"inv_start: \n"
"mcr p15, 0, %0, c7, c14, 1 \n" /* Clean and invalidate this line */
"add %0, %0, #32 \n"
"cmp %0, %1 \n"
"blo inv_start \n"
"ble inv_start \n"
"mov %0, #0\n"
"mcr p15,0,%0,c7,c10,4\n" /* Drain write buffer */
: : "r" (addr), "r" (end));
@ -105,7 +104,7 @@ void invalidate_dcache_range(const void *base, unsigned int size) {
/* forces DCache writeback for the specified range */
void clean_dcache_range(const void *base, unsigned int size) {
unsigned int addr = (int) base;
unsigned int end = addr+size;
unsigned int end = addr+size+32;
asm volatile(
"bic %0, %0, #31 \n"
"clean_start: \n"