Changeset 2057572 in mainline for kernel/arch/sparc64/include/mm/tsb.h

Timestamp:

2007-03-27T23:40:25Z (18 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

399ece9

Parents:

8d37a06

Message:

The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.

Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache.

File:

• kernel/arch/sparc64/include/mm/tsb.h (modified) (1 diff)

kernel/arch/sparc64/include/mm/tsb.h

@@ -113 +113 @@
 
 extern void tsb_invalidate(struct as *as, uintptr_t page, count_t pages);
-extern void itsb_pte_copy(struct pte *t);
-extern void dtsb_pte_copy(struct pte *t, bool ro);
+extern void itsb_pte_copy(struct pte *t, index_t index);
+extern void dtsb_pte_copy(struct pte *t, index_t index, bool ro);
 
 #endif /* !def __ASM__ */