kernel/arch/vm: implement for riscv64

Change-Id: I0b463f3d2bca9f31b0aabacbf70a9774493d3467 Reviewed-on: https://review.haiku-os.org/c/haiku/+/4051 Reviewed-by: Alex von Gluck IV <[email protected]>
2021-08-06 14:47:32 +00:00
parent 7e6b3c0787
commit 7ef006297e
7 changed files with 1438 additions and 32 deletions
@@ -7,20 +7,23 @@

 #include <arch/vm_translation_map.h>

-#ifdef __cplusplus
-extern "C" {
-#endif

-void riscv64_translation_map_change_asid(VMTranslationMap *map);
+//gVirtFromPhysOffset = virtAdr - physAdr;
+extern ssize_t gVirtFromPhysOffset;

-status_t riscv64_map_address_range(addr_t virtualAddress,
-	phys_addr_t physicalAddress, size_t size);
-void riscv64_unmap_address_range(addr_t virtualAddress, size_t size);
-status_t riscv64_remap_address_range(addr_t *virtualAddress, size_t size,
-	bool unmap);

-#ifdef __cplusplus
+static inline void*
+VirtFromPhys(phys_addr_t physAdr)
+{
+	return (void*)(physAdr + gVirtFromPhysOffset);
 }
-#endif
+
+
+static inline phys_addr_t
+PhysFromVirt(void* virtAdr)
+{
+	return (phys_addr_t)virtAdr - gVirtFromPhysOffset;
+}
+

 #endif /* _KERNEL_ARCH_RISCV64_VM_TRANSLATION_MAP_H */