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bsps/powerpc: Fix warning

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Close #3051.
This commit is contained in:
Sebastian Huber
2017-06-16 06:22:55 +02:00
parent ae359a9df4
commit b361cb6c4d
1 changed files with 5 additions and 5 deletions
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c/src/lib/libbsp/powerpc/shared/src/memcpy.c
+5 -5
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@@ -25,7 +25,7 @@
#include <libcpu/powerpc-utility.h>
#define CACHE_LINE_SIZE 32
#define PPC_CACHE_ALIGNMENT 32
#define WORD_SIZE 4
@@ -47,8 +47,8 @@ void *memcpy(void *dst_ptr, const void *src_ptr, size_t n)
uint32_t *word_dst = (uint32_t *) dst - 1;
const uint32_t *word_src = (const uint32_t *) src - 1;
if (n >= 2 * CACHE_LINE_SIZE - WORD_SIZE) {
while ((uintptr_t) (word_dst + 1) % CACHE_LINE_SIZE != 0) {
if (n >= 2 * PPC_CACHE_ALIGNMENT - WORD_SIZE) {
while ((uintptr_t) (word_dst + 1) % PPC_CACHE_ALIGNMENT != 0) {
uint32_t tmp;
__asm__ volatile (
"lwzu %[tmp], 0x4(%[src])\n"
@@ -60,7 +60,7 @@ void *memcpy(void *dst_ptr, const void *src_ptr, size_t n)
n -= WORD_SIZE;
}
while (n >= CACHE_LINE_SIZE) {
while (n >= PPC_CACHE_ALIGNMENT) {
uint32_t dst_offset = 4;
uint32_t src_offset = 32 + 4;
uint32_t tmp0;
@@ -95,7 +95,7 @@ void *memcpy(void *dst_ptr, const void *src_ptr, size_t n)
: [src_offset] "r" (src_offset),
[dst_offset] "r" (dst_offset)
);
n -= CACHE_LINE_SIZE;
n -= PPC_CACHE_ALIGNMENT;
}
}