Changeset 6250c37 in mainline for kernel/arch/arm32/src/mm

Timestamp:

2010-06-27T10:20:01Z (16 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

f1fc83a

Parents:

12b0d51

Message:

Fix first physical frame number computation. Only create kernel identity mapping from beginning of physical memory, not from zero.

Location:

kernel/arch/arm32/src/mm

Files:

• frame.c (modified) (1 diff)
• page.c (modified) (1 diff)

kernel/arch/arm32/src/mm/frame.c

@@ -56 +56 @@
         
         /* All memory as one zone */
-        zone_create(first_frame, num_frames,
+        zone_create(first_frame >> FRAME_WIDTH, num_frames,
             BOOT_PAGE_TABLE_START_FRAME + BOOT_PAGE_TABLE_SIZE_IN_FRAMES, 0);
         

kernel/arch/arm32/src/mm/page.c

@@ -58 +58 @@
         uintptr_t cur;
         /* Kernel identity mapping */
-        for (cur = 0; cur < last_frame; cur += FRAME_SIZE)
+        for (cur = PHYSMEM_START_ADDR; cur < last_frame; cur += FRAME_SIZE)
                 page_mapping_insert(AS_KERNEL, PA2KA(cur), cur, flags);