Changeset 59e4864 in mainline for kernel/arch/ia64/src/mm/page.c

Timestamp:

2008-11-11T08:00:42Z (17 years ago)

Author:

Jakub Vana <jakub.vana@…>

Branches:

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

Children:

f3c4a26

Parents:

a2a5529

Message:

Alfa of SMP support on IA64

File:

• kernel/arch/ia64/src/mm/page.c (modified) (2 diffs)

kernel/arch/ia64/src/mm/page.c

@@ -48 +48 @@
 #include <arch/barrier.h>
 #include <memstr.h>
+#include <align.h>
 
 static void set_environment(void);
@@ -263 +264 @@
 }
 
+extern uintptr_t last_frame;
+
+
+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)", 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;
+}
+
+
+
 /** @}
  */