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OpenCloudOS-Kernel
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Fix divide by zero error in build_clear_page() and build_copy_page() 

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Yoichi Yuasa 2008-05-07 23:38:15 +09:00 committed by Ralf Baechle
parent 2cc3c0b67b
commit cd9da13d6e
1 changed files with 6 additions and 4 deletions
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10
arch/mips/mm/page.c
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@ -310,8 +310,8 @@ void __cpuinit build_clear_page(void)
if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
uasm_i_lui(&buf, AT, 0xa000);
off = min(8, pref_bias_clear_store / cache_line_size) *
cache_line_size;
off = cache_line_size ? min(8, pref_bias_clear_store / cache_line_size)
* cache_line_size : 0;
while (off) {
build_clear_pref(&buf, -off);
off -= cache_line_size;
@ -454,12 +454,14 @@ void __cpuinit build_copy_page(void)
if (R4600_V2_HIT_CACHEOP_WAR && cpu_is_r4600_v2_x())
uasm_i_lui(&buf, AT, 0xa000);
off = min(8, pref_bias_copy_load / cache_line_size) * cache_line_size;
off = cache_line_size ? min(8, pref_bias_copy_load / cache_line_size) *
cache_line_size : 0;
while (off) {
build_copy_load_pref(&buf, -off);
off -= cache_line_size;
}
off = min(8, pref_bias_copy_store / cache_line_size) * cache_line_size;
off = cache_line_size ? min(8, pref_bias_copy_load / cache_line_size) *
cache_line_size : 0;
while (off) {
build_copy_store_pref(&buf, -off);
off -= cache_line_size;