[uClinux-dev] [PATCH 2/3] m68knommu: Move __flush_cache_all definition for m54xx in m54xxacr.h
__flush_cache_all for m54xx is intrinsically related to the bit
definitions in m54xxacr.h. Move it there from cacheflush_no.h,
for easier maintenance.
Signed-off-by: Philippe De Muyter p...@macqel.be
---
arch/m68k/include/asm/cacheflush_no.h | 28 +---
arch/m68k/include/asm/m54xxacr.h | 31 +++
2 files changed, 36 insertions(+), 23 deletions(-)
diff --git a/arch/m68k/include/asm/cacheflush_no.h
b/arch/m68k/include/asm/cacheflush_no.h
index 7085bd5..8fda331 100644
--- a/arch/m68k/include/asm/cacheflush_no.h
+++ b/arch/m68k/include/asm/cacheflush_no.h
@@ -5,6 +5,9 @@
* (C) Copyright 2000-2004, Greg Ungerer g...@snapgear.com
*/
#include linux/mm.h
+#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
+#include asm/m54xxacr.h
+#endif
#define flush_cache_all() __flush_cache_all()
#define flush_cache_mm(mm) do { } while (0)
@@ -27,31 +30,9 @@
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
+#ifndef __flush_cache_all
static inline void __flush_cache_all(void)
{
-#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
- /*
-* Use cpushl to push and invalidate all cache lines.
-* Gas doesn't seem to know how to generate the ColdFire
-* cpushl instruction... Oh well, bit stuff it for now.
-*/
- __asm__ __volatile__ (
- nop\n\t
- clrl %%d0\n\t
- 1:\n\t
- movel %%d0,%%a0\n\t
- 2:\n\t
- .word 0xf468\n\t
- addl #0x10,%%a0\n\t
- cmpl #0x0800,%%a0\n\t
- blt2b\n\t
- addql #1,%%d0\n\t
- cmpil #4,%%d0\n\t
- bne1b\n\t
- movel #0xb6088500,%%d0\n\t
- movec %%d0,%%CACR\n\t
- : : : d0, a0 );
-#endif /* CONFIG_M5407 */
#if defined(CONFIG_M523x) || defined(CONFIG_M527x)
__asm__ __volatile__ (
movel #0x81400100, %%d0\n\t
@@ -88,5 +69,6 @@ static inline void __flush_cache_all(void)
: : : d0 );
#endif /* CONFIG_M532x */
}
+#endif /* __flush_cache_all */
#endif /* _M68KNOMMU_CACHEFLUSH_H */
diff --git a/arch/m68k/include/asm/m54xxacr.h b/arch/m68k/include/asm/m54xxacr.h
index 424d4a6..da713d2 100644
--- a/arch/m68k/include/asm/m54xxacr.h
+++ b/arch/m68k/include/asm/m54xxacr.h
@@ -40,4 +40,35 @@
#define ACR_CM 0x0060 /* Cache mode mask */
#define ACR_WPROTECT 0x0004 /* Write protect */
+#ifndef __ASSEMBLY__
+
+static inline void __m54xx_flush_cache_all(void)
+{
+ /*
+* Use cpushl to push and invalidate all cache lines.
+* Gas doesn't seem to know how to generate the ColdFire
+* cpushl instruction... Oh well, bit stuff it for now.
+*/
+ __asm__ __volatile__ (
+ nop\n\t
+ clrl %%d0\n\t
+ 1:\n\t
+ movel %%d0,%%a0\n\t
+ 2:\n\t
+ .word 0xf468\n\t
+ addl #0x10,%%a0\n\t
+ cmpl #0x0800,%%a0\n\t
+ blt2b\n\t
+ addql #1,%%d0\n\t
+ cmpil #4,%%d0\n\t
+ bne1b\n\t
+ movel #0xb6088500,%%d0\n\t
+ movec %%d0,%%CACR\n\t
+ : : : d0, a0 );
+}
+
+#define __flush_cache_all() __m54xx_flush_cache_all()
+
+#endif /* __ASSEMBLY__ */
+
#endif /* m54xxacr_h */
--
1.7.1
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Re: [uClinux-dev] [PATCH 2/3] m68knommu: Move __flush_cache_all definition for m54xx in m54xxacr.h
Hi Philippe,
On 27/10/10 22:57, Philippe De Muyter wrote:
__flush_cache_all for m54xx is intrinsically related to the bit
definitions in m54xxacr.h. Move it there from cacheflush_no.h,
for easier maintenance.
Signed-off-by: Philippe De Muyterp...@macqel.be
Applied to m68knommu git tree, thanks.
Regards
Greg
arch/m68k/include/asm/cacheflush_no.h | 28 +---
arch/m68k/include/asm/m54xxacr.h | 31 +++
2 files changed, 36 insertions(+), 23 deletions(-)
diff --git a/arch/m68k/include/asm/cacheflush_no.h
b/arch/m68k/include/asm/cacheflush_no.h
index 7085bd5..8fda331 100644
--- a/arch/m68k/include/asm/cacheflush_no.h
+++ b/arch/m68k/include/asm/cacheflush_no.h
@@ -5,6 +5,9 @@
* (C) Copyright 2000-2004, Greg Ungererg...@snapgear.com
*/
#includelinux/mm.h
+#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
+#includeasm/m54xxacr.h
+#endif
#define flush_cache_all() __flush_cache_all()
#define flush_cache_mm(mm)do { } while (0)
@@ -27,31 +30,9 @@
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
+#ifndef __flush_cache_all
static inline void __flush_cache_all(void)
{
-#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
- /*
-* Use cpushl to push and invalidate all cache lines.
-* Gas doesn't seem to know how to generate the ColdFire
-* cpushl instruction... Oh well, bit stuff it for now.
-*/
- __asm__ __volatile__ (
- nop\n\t
- clrl %%d0\n\t
- 1:\n\t
- movel %%d0,%%a0\n\t
- 2:\n\t
- .word 0xf468\n\t
- addl #0x10,%%a0\n\t
- cmpl #0x0800,%%a0\n\t
- blt 2b\n\t
- addql #1,%%d0\n\t
- cmpil #4,%%d0\n\t
- bne 1b\n\t
- movel #0xb6088500,%%d0\n\t
- movec %%d0,%%CACR\n\t
- : : : d0, a0 );
-#endif /* CONFIG_M5407 */
#if defined(CONFIG_M523x) || defined(CONFIG_M527x)
__asm__ __volatile__ (
movel #0x81400100, %%d0\n\t
@@ -88,5 +69,6 @@ static inline void __flush_cache_all(void)
: : : d0 );
#endif /* CONFIG_M532x */
}
+#endif /* __flush_cache_all */
#endif /* _M68KNOMMU_CACHEFLUSH_H */
diff --git a/arch/m68k/include/asm/m54xxacr.h b/arch/m68k/include/asm/m54xxacr.h
index 424d4a6..da713d2 100644
--- a/arch/m68k/include/asm/m54xxacr.h
+++ b/arch/m68k/include/asm/m54xxacr.h
@@ -40,4 +40,35 @@
#define ACR_CM0x0060 /* Cache mode mask */
#define ACR_WPROTECT 0x0004 /* Write protect */
+#ifndef __ASSEMBLY__
+
+static inline void __m54xx_flush_cache_all(void)
+{
+ /*
+* Use cpushl to push and invalidate all cache lines.
+* Gas doesn't seem to know how to generate the ColdFire
+* cpushl instruction... Oh well, bit stuff it for now.
+*/
+ __asm__ __volatile__ (
+ nop\n\t
+ clrl %%d0\n\t
+ 1:\n\t
+ movel %%d0,%%a0\n\t
+ 2:\n\t
+ .word 0xf468\n\t
+ addl #0x10,%%a0\n\t
+ cmpl #0x0800,%%a0\n\t
+ blt 2b\n\t
+ addql #1,%%d0\n\t
+ cmpil #4,%%d0\n\t
+ bne 1b\n\t
+ movel #0xb6088500,%%d0\n\t
+ movec %%d0,%%CACR\n\t
+ : : : d0, a0 );
+}
+
+#define __flush_cache_all() __m54xx_flush_cache_all()
+
+#endif /* __ASSEMBLY__ */
+
#endif/* m54xxacr_h */
--
Greg Ungerer -- Principal EngineerEMAIL: g...@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
8 Gardner Close FAX: +61 7 3217 5323
Milton, QLD, 4064, AustraliaWEB: http://www.SnapGear.com
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