diff options
Diffstat (limited to 'arch/mips/mm/page.c')
| -rw-r--r-- | arch/mips/mm/page.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/mips/mm/page.c b/arch/mips/mm/page.c index 8e666c55f4d..4eb8dcfaf1c 100644 --- a/arch/mips/mm/page.c +++ b/arch/mips/mm/page.c @@ -247,6 +247,11 @@ void __cpuinit build_clear_page(void) struct uasm_label *l = labels; struct uasm_reloc *r = relocs; int i; + static atomic_t run_once = ATOMIC_INIT(0); + + if (atomic_xchg(&run_once, 1)) { + return; + } memset(labels, 0, sizeof(labels)); memset(relocs, 0, sizeof(relocs)); @@ -271,7 +276,7 @@ void __cpuinit build_clear_page(void) uasm_i_lui(&buf, AT, 0xa000); off = cache_line_size ? min(8, pref_bias_clear_store / cache_line_size) - * cache_line_size : 0; + * cache_line_size : 0; while (off) { build_clear_pref(&buf, -off); off -= cache_line_size; @@ -389,6 +394,11 @@ void __cpuinit build_copy_page(void) struct uasm_label *l = labels; struct uasm_reloc *r = relocs; int i; + static atomic_t run_once = ATOMIC_INIT(0); + + if (atomic_xchg(&run_once, 1)) { + return; + } memset(labels, 0, sizeof(labels)); memset(relocs, 0, sizeof(relocs)); @@ -417,13 +427,13 @@ void __cpuinit build_copy_page(void) uasm_i_lui(&buf, AT, 0xa000); off = cache_line_size ? min(8, pref_bias_copy_load / cache_line_size) * - cache_line_size : 0; + cache_line_size : 0; while (off) { build_copy_load_pref(&buf, -off); off -= cache_line_size; } off = cache_line_size ? min(8, pref_bias_copy_store / cache_line_size) * - cache_line_size : 0; + cache_line_size : 0; while (off) { build_copy_store_pref(&buf, -off); off -= cache_line_size; |