Changeset c6e314a in mainline for kernel/arch/sparc64/include/mm/frame.h

Timestamp:

2006-07-14T11:39:02Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

08a7802f

Parents:

10b890b

Message:

Change hw_map() on sparc64 to use virtual addresses that are
beyond the end of physical memory. It is beneficial in two
ways: first, physical memory is no longer being wasted by
otherwise necessary calls to frame_alloc() and, second,
virtual addresses for devices are now correctly allocated
and do not overlap with the 4M TLB-locked mapping for
kernel text and data.

File:

• kernel/arch/sparc64/include/mm/frame.h (modified) (4 diffs)

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

@@ -27 +27 @@
  */
 
- /** @addtogroup sparc64mm      
+/** @addtogroup sparc64mm       
  * @{
  */
@@ -48 +48 @@
         struct {
                 unsigned : 23;
-                uint64_t pfn : 28;         /**< Physical Frame Number. */
-                unsigned offset : 13;   /**< Offset. */
+                uint64_t pfn : 28;      /**< Physical Frame Number. */
+                unsigned offset : 13;   /**< Offset. */
         } __attribute__ ((packed));
 };
@@ -55 +55 @@
 typedef union frame_address frame_address_t;
 
+extern uintptr_t last_frame;
 extern void frame_arch_init(void);
 
@@ -62 +63 @@
 #endif
 
- /** @}
+/** @}
  */
-