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authorDavid Howells <dhowells@redhat.com>2010-10-27 17:28:42 +0100
committerDavid Howells <dhowells@redhat.com>2010-10-27 17:28:42 +0100
commit344af921e6f23ea82487d76918d2643fcc88c311 (patch)
tree28d3416e73616163bd82261d18606c7157190a9f /arch/mn10300
parent0bc42d7fcb0acaab4202db97ff2de475424bf9b4 (diff)
downloadlinux-2.6.38-lt-ux500-344af921e6f23ea82487d76918d2643fcc88c311.tar.gz
MN10300: Provide a MN10300_CACHE_ENABLED config option
Provide a MN10300_CACHE_ENABLED config option as inverted logic of MN10300_CACHE_DISABLED to make things simpler. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300')
-rw-r--r--arch/mn10300/include/asm/cacheflush.h6
-rw-r--r--arch/mn10300/include/asm/gdb-stub.h2
-rw-r--r--arch/mn10300/include/asm/processor.h4
-rw-r--r--arch/mn10300/kernel/Makefile2
-rw-r--r--arch/mn10300/kernel/head.S6
-rw-r--r--arch/mn10300/mm/Kconfig.cache3
6 files changed, 13 insertions, 10 deletions
diff --git a/arch/mn10300/include/asm/cacheflush.h b/arch/mn10300/include/asm/cacheflush.h
index 29e692f7f03..b85be1d2fd3 100644
--- a/arch/mn10300/include/asm/cacheflush.h
+++ b/arch/mn10300/include/asm/cacheflush.h
@@ -34,7 +34,7 @@
/*
* physically-indexed cache management
*/
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
extern void flush_icache_range(unsigned long start, unsigned long end);
extern void flush_icache_page(struct vm_area_struct *vma, struct page *pg);
@@ -61,7 +61,7 @@ extern void flush_icache_page(struct vm_area_struct *vma, struct page *pg);
/*
* primitive routines
*/
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
extern void mn10300_icache_inv(void);
extern void mn10300_dcache_inv(void);
extern void mn10300_dcache_inv_page(unsigned start);
@@ -103,7 +103,7 @@ extern void mn10300_dcache_flush_inv_range2(unsigned start, unsigned size);
#define mn10300_dcache_flush_page(start) do {} while (0)
#define mn10300_dcache_flush_range(start, end) do {} while (0)
#define mn10300_dcache_flush_range2(start, size) do {} while (0)
-#endif /* CONFIG_MN10300_CACHE_DISABLED */
+#endif /* CONFIG_MN10300_CACHE_ENABLED */
/*
* internal debugging function
diff --git a/arch/mn10300/include/asm/gdb-stub.h b/arch/mn10300/include/asm/gdb-stub.h
index 41ed2676396..f5495ad82b7 100644
--- a/arch/mn10300/include/asm/gdb-stub.h
+++ b/arch/mn10300/include/asm/gdb-stub.h
@@ -110,7 +110,7 @@ extern asmlinkage void gdbstub_exception(struct pt_regs *, enum exception_code);
extern asmlinkage void __gdbstub_bug_trap(void);
extern asmlinkage void __gdbstub_pause(void);
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
extern asmlinkage void gdbstub_purge_cache(void);
#else
#define gdbstub_purge_cache() do {} while (0)
diff --git a/arch/mn10300/include/asm/processor.h b/arch/mn10300/include/asm/processor.h
index f7d4b0d285e..fd96c180e64 100644
--- a/arch/mn10300/include/asm/processor.h
+++ b/arch/mn10300/include/asm/processor.h
@@ -157,7 +157,7 @@ unsigned long get_wchan(struct task_struct *p);
static inline void prefetch(const void *x)
{
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
#ifdef CONFIG_MN10300_PROC_MN103E010
asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
#else
@@ -168,7 +168,7 @@ static inline void prefetch(const void *x)
static inline void prefetchw(const void *x)
{
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
#ifdef CONFIG_MN10300_PROC_MN103E010
asm volatile ("nop; nop; dcpf (%0)" : : "r"(x));
#else
diff --git a/arch/mn10300/kernel/Makefile b/arch/mn10300/kernel/Makefile
index 23f2ab67574..c4289e38807 100644
--- a/arch/mn10300/kernel/Makefile
+++ b/arch/mn10300/kernel/Makefile
@@ -17,7 +17,7 @@ obj-$(CONFIG_GDBSTUB) += gdb-stub.o gdb-low.o
obj-$(CONFIG_GDBSTUB_ON_TTYSx) += gdb-io-serial.o gdb-io-serial-low.o
obj-$(CONFIG_GDBSTUB_ON_TTYSMx) += gdb-io-ttysm.o gdb-io-ttysm-low.o
-ifneq ($(CONFIG_MN10300_CACHE_DISABLED),y)
+ifeq ($(CONFIG_MN10300_CACHE_ENABLED),y)
obj-$(CONFIG_GDBSTUB) += gdb-cache.o
endif
diff --git a/arch/mn10300/kernel/head.S b/arch/mn10300/kernel/head.S
index 14f27f3bfaf..a81e34fba65 100644
--- a/arch/mn10300/kernel/head.S
+++ b/arch/mn10300/kernel/head.S
@@ -61,18 +61,18 @@ _start:
btst CHCTR_ICBUSY|CHCTR_DCBUSY,d0 # wait till not busy
lne
-#ifndef CONFIG_MN10300_CACHE_DISABLED
+#ifdef CONFIG_MN10300_CACHE_ENABLED
#ifdef CONFIG_MN10300_CACHE_WBACK
#ifndef CONFIG_MN10300_CACHE_WBACK_NOWRALLOC
mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK,d0
#else
mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRBACK|CHCTR_DCALMD,d0
-#endif /* CACHE_DISABLED */
+#endif /* NOWRALLOC */
#else
mov CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD_WRTHROUGH,d0
#endif /* WBACK */
movhu d0,(a0) # enable
-#endif /* NOWRALLOC */
+#endif /* ENABLED */
# turn on RTS on the debug serial port if applicable
#ifdef CONFIG_MN10300_UNIT_ASB2305
diff --git a/arch/mn10300/mm/Kconfig.cache b/arch/mn10300/mm/Kconfig.cache
index f5599f47ec1..56a88dd9c70 100644
--- a/arch/mn10300/mm/Kconfig.cache
+++ b/arch/mn10300/mm/Kconfig.cache
@@ -30,3 +30,6 @@ config MN10300_CACHE_DISABLED
bool "Disabled"
endchoice
+
+config MN10300_CACHE_ENABLED
+ def_bool y if !MN10300_CACHE_DISABLED