sh: Factor in cpu id for selection of cache colour fixmap.
In the SMP VIPT case the page copy/clear ops still perform colouring,
care needs to be taken that CPUs don't end up stepping on each other,
so we give them a bit of room to work with.
At the same time, we reduce the worst-case colouring given that these
pages are always consumed.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/fixmap.h b/arch/sh/include/asm/fixmap.h
index 721fcc4..76c5a30 100644
--- a/arch/sh/include/asm/fixmap.h
+++ b/arch/sh/include/asm/fixmap.h
@@ -14,9 +14,9 @@
#define _ASM_FIXMAP_H
#include <linux/kernel.h>
+#include <linux/threads.h>
#include <asm/page.h>
#ifdef CONFIG_HIGHMEM
-#include <linux/threads.h>
#include <asm/kmap_types.h>
#endif
@@ -46,9 +46,9 @@
* fix-mapped?
*/
enum fixed_addresses {
-#define FIX_N_COLOURS 16
+#define FIX_N_COLOURS 8
FIX_CMAP_BEGIN,
- FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
+ FIX_CMAP_END = FIX_CMAP_BEGIN + (FIX_N_COLOURS * NR_CPUS),
FIX_UNCACHED,
#ifdef CONFIG_HIGHMEM
FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */