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authorPaul Mundt <lethal@linux-sh.org>2006-09-27 18:36:17 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-09-27 18:36:17 +0900
commitf3c2575818fab45f8609e4aef2e43ab02b3a142e (patch)
treea4924d7dd8f8df229e36fab24ccccfe12437509b /arch/sh/kernel/cpu/init.c
parent87b0ef91b6f27c07bf7dcce8584437481f473092 (diff)
sh: Calculate shm alignment at runtime.
Set the SHM alignment at runtime, based off of probed cache desc. Optimize get_unmapped_area() to only colour align shared mappings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu/init.c')
-rw-r--r--arch/sh/kernel/cpu/init.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index 731dd61419d..bfb90eb0b7a 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
+#include <asm/page.h>
#include <asm/system.h>
#include <asm/cacheflush.h>
#include <asm/cache.h>
@@ -198,6 +199,10 @@ asmlinkage void __init sh_cpu_init(void)
/* Init the cache */
cache_init();
+ shm_align_mask = max_t(unsigned long,
+ cpu_data->dcache.way_size - 1,
+ PAGE_SIZE - 1);
+
/* Disable the FPU */
if (fpu_disabled) {
printk("FPU Disabled\n");