Changeset b60c582 in mainline for kernel/arch/sparc64/src/mm/page.c

Timestamp:

2009-04-03T08:02:30Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

2398ee9

Parents:

9be1d58

Message:

update for string changes

File:

• kernel/arch/sparc64/src/mm/page.c (modified) (1 diff)

kernel/arch/sparc64/src/mm/page.c

@@ -63 +63 @@
 uintptr_t hw_map(uintptr_t physaddr, size_t size)
 {
-        return PA2KA(physaddr);
+        if (last_frame + ALIGN_UP(size, PAGE_SIZE) > KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH))
+                panic("Unable to map physical memory %p (%d bytes).", physaddr, size)
+        
+        uintptr_t virtaddr = PA2KA(last_frame);
+        pfn_t i;
+        for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) {
+                uintptr_t addr = PFN2ADDR(i);
+                page_mapping_insert(AS_KERNEL, virtaddr + addr, physaddr + addr, PAGE_NOT_CACHEABLE | PAGE_WRITE);
+        }
+        
+        last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE);
+        
+        return virtaddr;
 }