X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/38965e3e83ba1b03c9c9a0f14cce85c1d0cd8fd8..03944e7734220bf7e7aa7b7113bcbdf9c22808a5:/lunaix-os/kernel/mm/mmio.c

diff --git a/lunaix-os/kernel/mm/mmio.c b/lunaix-os/kernel/mm/mmio.c
new file mode 100644
index 0000000..f6d5368
--- /dev/null
+++ b/lunaix-os/kernel/mm/mmio.c
@@ -0,0 +1,18 @@
+#include <lunaix/mm/mmio.h>
+#include <lunaix/mm/pmm.h>
+#include <lunaix/mm/vmm.h>
+
+void*
+ioremap(uintptr_t paddr, uint32_t size)
+{
+    return vmm_vmap(paddr, size, PG_PREM_RW, PP_FGPERSIST);
+}
+
+void*
+iounmap(uintptr_t vaddr, uint32_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);
+    }
+}
\ No newline at end of file