Changeset 1c01e6c in mainline for kernel/arch/arm32/src/mm/page.c

Timestamp:

2011-11-26T16:37:37Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

056ddc30

Parents:

9aed144

Message:

Replace hw_map() implementations with one generic.
Currently the kernel is broken because of missing page allocator.

File:

• kernel/arch/arm32/src/mm/page.c (modified) (1 diff)

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

@@ -82 +82 @@
 }
 
-/** Maps device into the kernel space.
- *
- * Maps physical address of device into kernel virtual address space (so it can
- * be accessed only by kernel through virtual address).
- *
- * @param physaddr Physical address where device is connected.
- * @param size Length of area where device is present.
- *
- * @return Virtual address where device will be accessible.
- */
-uintptr_t hw_map(uintptr_t physaddr, size_t size)
-{
-        if (last_frame + ALIGN_UP(size, PAGE_SIZE) >
-            KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) {
-                panic("Unable to map physical memory %p (%d bytes).",
-                    (void *) physaddr, size);
-        }
-        
-        uintptr_t virtaddr = PA2KA(last_frame);
-        pfn_t i;
-
-        page_table_lock(AS_KERNEL, true);
-        for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) {
-                page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i),
-                    physaddr + PFN2ADDR(i),
-                    PAGE_NOT_CACHEABLE | PAGE_READ | PAGE_WRITE | PAGE_KERNEL);
-        }
-        page_table_unlock(AS_KERNEL, true);
-        
-        last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE);
-        return virtaddr;
-}
-
 /** @}
  */