X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/e8e64a4f1d76aaeac3defa13243505cccd25c078..11b423249f224e3c9b7d940862c3cae310f81a23:/lunaix-os/kernel/mm/mmio.c

diff --git a/lunaix-os/kernel/mm/mmio.c b/lunaix-os/kernel/mm/mmio.c
index 5e0d01e..1e262cc 100644
--- a/lunaix-os/kernel/mm/mmio.c
+++ b/lunaix-os/kernel/mm/mmio.c
@@ -1,18 +1,31 @@
 #include <lunaix/mm/mmio.h>
 #include <lunaix/mm/pmm.h>
 #include <lunaix/mm/vmm.h>
+#include <lunaix/spike.h>
 
 void*
-ioremap(uintptr_t paddr, uint32_t size)
+ioremap(ptr_t paddr, u32_t size)
 {
-    return vmm_vmap(paddr, size, PG_PREM_RW | PG_DISABLE_CACHE);
+    // FIXME implement a page policy interface allow to decouple the 
+    //       arch-dependent caching behaviour
+    void* ptr = (void*)vmap(paddr, size, KERNEL_DATA);
+
+    if (ptr) {
+        pmm_mark_chunk_occupied(pfn(paddr), leaf_count(size), PP_FGLOCKED);
+    }
+
+    return ptr;
 }
 
-void*
-iounmap(uintptr_t vaddr, uint32_t size)
+void
+iounmap(ptr_t vaddr, u32_t size)
 {
-    for (size_t i = 0; i < size; i += PG_SIZE) {
-        uintptr_t paddr = vmm_del_mapping(PD_REFERENCED, vaddr + i);
-        pmm_free_page(KERNEL_PID, paddr);
+    pte_t* ptep = mkptep_va(VMS_SELF, vaddr);
+    for (size_t i = 0; i < size; i += PAGE_SIZE, ptep++) {
+        pte_t pte = pte_at(ptep);
+
+        set_pte(ptep, null_pte);
+        if (pte_isloaded(pte))
+            pmm_free_page(pte_paddr(pte));
     }
 }
\ No newline at end of file