feat: msync(2)

[lunaix-os.git] / lunaix-os / kernel / mm / mmio.c

diff --git a/lunaix-os/kernel/mm/mmio.c b/lunaix-os/kernel/mm/mmio.c
index 5e0d01e28601b321c94d62914e0d26b006715655..e9843d64d9ade7273b7b8e845446515752283d7d 100644 (file)
--- a/lunaix-os/kernel/mm/mmio.c
+++ b/lunaix-os/kernel/mm/mmio.c
@@ -1,18 +1,26 @@
 #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(uintptr_t paddr, u32_t size)
 {
-    return vmm_vmap(paddr, size, PG_PREM_RW | PG_DISABLE_CACHE);
+    void* ptr = vmm_vmap(paddr, size, PG_PREM_RW | PG_DISABLE_CACHE);
+    if (ptr) {
+        pmm_mark_chunk_occupied(KERNEL_PID,
+                                paddr >> PG_SIZE_BITS,
+                                CEIL(size, PG_SIZE_BITS),
+                                PP_FGLOCKED);
+    }
+    return ptr;
 }
 
 void*
-iounmap(uintptr_t vaddr, uint32_t size)
+iounmap(uintptr_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);
+        uintptr_t paddr = vmm_del_mapping(VMS_SELF, vaddr + i);
         pmm_free_page(KERNEL_PID, paddr);
     }
 }
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