X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Fasm-mips%2Fhighmem.h;h=4374ab2adc756626cd5d9278b37679737a9db6ca;hb=c8988f968240069aeae16d8cf9f59096a085eb27;hp=f8c8182f7f2e642a0326af17534c43d6fcd3fe8e;hpb=e9ccb79927225d8cd8d022a7c09bfb2fad935b89;p=linux-2.6

diff --git a/include/asm-mips/highmem.h b/include/asm-mips/highmem.h
index f8c8182f7f..4374ab2adc 100644
--- a/include/asm-mips/highmem.h
+++ b/include/asm-mips/highmem.h
@@ -39,7 +39,6 @@ extern pte_t *pkmap_page_table;
  * easily, subsequent pte tables have to be allocated in one physical
  * chunk of RAM.
  */
-#define PKMAP_BASE (0xfe000000UL)
 #define LAST_PKMAP 1024
 #define LAST_PKMAP_MASK (LAST_PKMAP-1)
 #define PKMAP_NR(virt)  ((virt-PKMAP_BASE) >> PAGE_SHIFT)
@@ -48,46 +47,6 @@ extern pte_t *pkmap_page_table;
 extern void * kmap_high(struct page *page);
 extern void kunmap_high(struct page *page);
 
-/*
- * CONFIG_LIMITED_DMA is for systems with DMA limitations such as Momentum's
- * Jaguar ATX.  This option exploits the highmem code in the kernel so is
- * always enabled together with CONFIG_HIGHMEM but at this time doesn't
- * actually add highmem functionality.
- */
-
-#ifdef CONFIG_LIMITED_DMA
-
-/*
- * These are the default functions for the no-highmem case from
- * <linux/highmem.h>
- */
-static inline void *kmap(struct page *page)
-{
-	might_sleep();
-	return page_address(page);
-}
-
-#define kunmap(page) do { (void) (page); } while (0)
-
-static inline void *kmap_atomic(struct page *page, enum km_type type)
-{
-	pagefault_disable();
-	return page_address(page);
-}
-
-static inline void kunmap_atomic(void *kvaddr, enum km_type type)
-{
-	pagefault_enable();
-}
-
-#define kmap_atomic_pfn(pfn, idx) kmap_atomic(pfn_to_page(pfn), (idx))
-
-#define kmap_atomic_to_page(ptr) virt_to_page(ptr)
-
-#define flush_cache_kmaps()	do { } while (0)
-
-#else /* LIMITED_DMA */
-
 extern void *__kmap(struct page *page);
 extern void __kunmap(struct page *page);
 extern void *__kmap_atomic(struct page *page, enum km_type type);
@@ -103,8 +62,6 @@ extern struct page *__kmap_atomic_to_page(void *ptr);
 
 #define flush_cache_kmaps()	flush_cache_all()
 
-#endif /* LIMITED_DMA */
-
 #endif /* __KERNEL__ */
 
 #endif /* _ASM_HIGHMEM_H */