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Diffstat (limited to 'arch/tile/include/asm/homecache.h')
-rw-r--r--arch/tile/include/asm/homecache.h30
1 files changed, 14 insertions, 16 deletions
diff --git a/arch/tile/include/asm/homecache.h b/arch/tile/include/asm/homecache.h
index a8243865d49..7ddd1b8d691 100644
--- a/arch/tile/include/asm/homecache.h
+++ b/arch/tile/include/asm/homecache.h
@@ -33,8 +33,7 @@ struct zone;
/*
* Is this page immutable (unwritable) and thus able to be cached more
- * widely than would otherwise be possible? On tile64 this means we
- * mark the PTE to cache locally; on tilepro it means we have "nc" set.
+ * widely than would otherwise be possible? This means we have "nc" set.
*/
#define PAGE_HOME_IMMUTABLE -2
@@ -44,16 +43,8 @@ struct zone;
*/
#define PAGE_HOME_INCOHERENT -3
-#if CHIP_HAS_CBOX_HOME_MAP()
/* Home for the page is distributed via hash-for-home. */
#define PAGE_HOME_HASH -4
-#endif
-
-/* Homing is unknown or unspecified. Not valid for page_home(). */
-#define PAGE_HOME_UNKNOWN -5
-
-/* Home on the current cpu. Not valid for page_home(). */
-#define PAGE_HOME_HERE -6
/* Support wrapper to use instead of explicit hv_flush_remote(). */
extern void flush_remote(unsigned long cache_pfn, unsigned long cache_length,
@@ -79,10 +70,17 @@ extern void homecache_change_page_home(struct page *, int order, int home);
/*
* Flush a page out of whatever cache(s) it is in.
* This is more than just finv, since it properly handles waiting
- * for the data to reach memory on tilepro, but it can be quite
- * heavyweight, particularly on hash-for-home memory.
+ * for the data to reach memory, but it can be quite
+ * heavyweight, particularly on incoherent or immutable memory.
+ */
+extern void homecache_finv_page(struct page *);
+
+/*
+ * Flush a page out of the specified home cache.
+ * Note that the specified home need not be the actual home of the page,
+ * as for example might be the case when coordinating with I/O devices.
*/
-extern void homecache_flush_cache(struct page *, int order);
+extern void homecache_finv_map_page(struct page *, int home);
/*
* Allocate a page with the given GFP flags, home, and optionally
@@ -104,10 +102,10 @@ extern struct page *homecache_alloc_pages_node(int nid, gfp_t gfp_mask,
* routines use homecache_change_page_home() to reset the home
* back to the default before returning the page to the allocator.
*/
+void __homecache_free_pages(struct page *, unsigned int order);
void homecache_free_pages(unsigned long addr, unsigned int order);
-#define homecache_free_page(page) \
- homecache_free_pages((page), 0)
-
+#define __homecache_free_page(page) __homecache_free_pages((page), 0)
+#define homecache_free_page(page) homecache_free_pages((page), 0)
/*