Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/asm-ppc/cacheflush.h b/include/asm-ppc/cacheflush.h
new file mode 100644
index 0000000..6a243ef
--- /dev/null
+++ b/include/asm-ppc/cacheflush.h
@@ -0,0 +1,49 @@
+/*
+ * include/asm-ppc/cacheflush.h
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifdef __KERNEL__
+#ifndef _PPC_CACHEFLUSH_H
+#define _PPC_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+/*
+ * No cache flushing is required when address mappings are
+ * changed, because the caches on PowerPCs are physically
+ * addressed. -- paulus
+ * Also, when SMP we use the coherency (M) bit of the
+ * BATs and PTEs. -- Cort
+ */
+#define flush_cache_all() do { } while (0)
+#define flush_cache_mm(mm) do { } while (0)
+#define flush_cache_range(vma, a, b) do { } while (0)
+#define flush_cache_page(vma, p, pfn) do { } while (0)
+#define flush_icache_page(vma, page) do { } while (0)
+#define flush_cache_vmap(start, end) do { } while (0)
+#define flush_cache_vunmap(start, end) do { } while (0)
+
+extern void flush_dcache_page(struct page *page);
+#define flush_dcache_mmap_lock(mapping) do { } while (0)
+#define flush_dcache_mmap_unlock(mapping) do { } while (0)
+
+extern void flush_icache_range(unsigned long, unsigned long);
+extern void flush_icache_user_range(struct vm_area_struct *vma,
+ struct page *page, unsigned long addr, int len);
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+do { memcpy(dst, src, len); \
+ flush_icache_user_range(vma, page, vaddr, len); \
+} while (0)
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+ memcpy(dst, src, len)
+
+extern void __flush_dcache_icache(void *page_va);
+extern void __flush_dcache_icache_phys(unsigned long physaddr);
+extern void flush_dcache_icache_page(struct page *page);
+#endif /* _PPC_CACHEFLUSH_H */
+#endif /* __KERNEL__ */