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Diffstat (limited to 'packages/ixp4xx/ixp-osal-2.1/invalidate-cache.patch')
-rw-r--r--packages/ixp4xx/ixp-osal-2.1/invalidate-cache.patch110
1 files changed, 110 insertions, 0 deletions
diff --git a/packages/ixp4xx/ixp-osal-2.1/invalidate-cache.patch b/packages/ixp4xx/ixp-osal-2.1/invalidate-cache.patch
new file mode 100644
index 0000000000..c6ec6ed6a7
--- /dev/null
+++ b/packages/ixp4xx/ixp-osal-2.1/invalidate-cache.patch
@@ -0,0 +1,110 @@
+--- ixp_osal/os/linux/include/core/IxOsalOs.h 2005-08-24 00:16:37.000000000 +0200
++++ ixp_osal/os/linux/include/core/IxOsalOs.h 2005-08-26 01:56:22.000000000 +0200
+@@ -56,6 +56,7 @@
+ #include <linux/cache.h>
+ #include <linux/mm.h>
+ #include <linux/config.h>
++#include <linux/version.h>
+ #include <asm/pgalloc.h>
+
+ /**
+@@ -66,9 +67,23 @@
+
+ #define IX_OSAL_OS_MMU_PHYS_TO_VIRT(addr) ((addr) ? phys_to_virt((unsigned int)(addr)) : 0)
+
+-#define IX_OSAL_OS_CACHE_INVALIDATE(addr, size) ( invalidate_dcache_range((__u32)addr, (__u32)addr + size ))
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
++/*
++ * 2.6 kernels do not export the required cache functions.
++ */
++extern void ixOsalCacheInvalidateRange(unsigned long start, unsigned long size);
++extern void ixOsalCacheFlushRange(unsigned long start, unsigned long size);
++
++#define IX_OSAL_OS_CACHE_INVALIDATE(addr, size) \
++ixOsalCacheInvalidateRange((unsigned long)addr, (unsigned long)addr + size)
++#define IX_OSAL_OS_CACHE_FLUSH(addr, size) \
++ixOsalCacheFlushRange((unsigned long)addr, (unsigned long)addr + size )
+
++#else
++
++#define IX_OSAL_OS_CACHE_INVALIDATE(addr, size) ( invalidate_dcache_range((__u32)addr, (__u32)addr + size ))
+ #define IX_OSAL_OS_CACHE_FLUSH(addr, size) ( clean_dcache_range((__u32)addr, (__u32)addr + size ))
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) */
+
+ #define printf printk /* For backword compatibility, needs to move to better location */
+
+--- ixp_osal/os/linux/src/core/IxOsalOsCacheMMU.c 2005-08-24 00:16:37.000000000 +0200
++++ ixp_osal/os/linux/src/core/IxOsalOsCacheMMU.c 2005-08-26 01:56:22.000000000 +0200
+@@ -210,3 +210,59 @@
+ free_pages ((unsigned int) memptr, order);
+ }
+ }
++
++
++/*
++ * 2.6 kernels do not export the required cache functions.
++ */
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
++
++#define _IX_STR(x) #x
++#define IX_STR(x) _IX_STR(x)
++#define IX_CLM IX_STR(IX_OSAL_CACHE_LINE_SIZE-1)
++
++/*
++ * reimplementation of kernel's invalidate_dcache_range()
++ */
++void
++ixOsalCacheInvalidateRange(unsigned long start, unsigned long size)
++{
++ __asm__
++ (" tst %0, #" IX_CLM "\n"
++ " mcrne p15, 0, %0, c7, c10, 1 @ clean D cache line\n"
++ " bic %0, %0, #" IX_CLM "\n"
++ " tst %1, #" IX_CLM "\n"
++ " mcrne p15, 0, %1, c7, c10, 1 @ clean D cache line\n"
++ "1: mcr p15, 0, %0, c7, c6, 1 @ invalidate D cache line\n"
++ " add %0, %0, #" IX_STR(IX_OSAL_CACHE_LINE_SIZE) "\n"
++ " cmp %0, %1\n"
++ " blo 1b\n"
++ " mcr p15, 0, %0, c7, c10, 4 @ drain write & fill buffer\n"
++ : /* no output */
++ : "r"(start), "r"(size)
++ : "cc");
++}
++
++/*
++ * reimplementation of kernel's invalidate_dcache_range()
++ */
++void
++ixOsalCacheFlushRange(unsigned long start, unsigned long size)
++{
++ __asm__
++ (" bic %0, %0, #" IX_CLM "\n"
++ "1: mcr p15, 0, %0, c7, c10, 1 @ clean D cache line\n"
++ " add %0, %0, #" IX_STR(IX_OSAL_CACHE_LINE_SIZE) "\n"
++ " cmp %0, %1\n"
++ " blo 1b\n"
++ " mcr p15, 0, %0, c7, c10, 4 @ drain write & fill buffer\n"
++ : /* no output */
++ : "r"(start), "r"(size)
++ : "cc");
++}
++
++#undef _IX_STR
++#undef IX_STR
++#undef IX_CLM
++
++#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) */
+--- ixp_osal/os/linux/src/core/IxOsalOsSymbols.c 2005-08-24 00:16:37.000000000 +0200
++++ ixp_osal/os/linux/src/core/IxOsalOsSymbols.c 2005-08-30 19:19:33.000000000 +0200
+@@ -64,6 +64,10 @@
+
+ EXPORT_SYMBOL (ixOsalCacheDmaMalloc);
+ EXPORT_SYMBOL (ixOsalCacheDmaFree);
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
++EXPORT_SYMBOL (ixOsalCacheInvalidateRange);
++EXPORT_SYMBOL (ixOsalCacheFlushRange);
++#endif
+
+ EXPORT_SYMBOL (ixOsalThreadCreate);
+ EXPORT_SYMBOL (ixOsalThreadStart);