kapi: return region pair for MMIO allocation

1 files changed, 7 insertions, 5 deletions

diff --git a/kapi/include/kapi/memory.hpp b/kapi/include/kapi/memory.hpp
index ae33904..f5e126a 100644
--- a/kapi/include/kapi/memory.hpp
+++ b/kapi/include/kapi/memory.hpp
@@ -16,6 +16,8 @@
 namespace kapi::memory
 {
 
+  using mmio_region = std::pair<linear_address, std::size_t>;
+
   //! @addtogroup kapi-memory-kernel-defined
   //! @{
 
@@ -89,7 +91,7 @@ namespace kapi::memory
   //!
   //! @warning This function will panic if the MMIO system has not been initialized!
   //! @param page_count The number of pages to allocate.
-  auto allocate_mmio_region(std::size_t page_count) -> linear_address;
+  auto allocate_mmio_region(std::size_t page_count) -> mmio_region;
 
   //! Map a region of Memory-mapped I/O address space to a given hardware address using the given flags.
   //!
@@ -98,16 +100,16 @@ namespace kapi::memory
   //!
   //! This function will always set the @p uncached flag.
   //!
-  //! @param base The base of the virtual region.
+  //! @param region The region to map.
   //! @param hw_base The base of the hardware region.
   //! @param flags The flags to apply.
-  auto map_mmio_region(linear_address base, physical_address hw_base, page_mapper::flags flags = {}) -> std::byte *;
+  auto map_mmio_region(mmio_region region, physical_address hw_base, page_mapper::flags flags = {}) -> std::byte *;
 
   //! Release a Memory-mapped I/O region.
   //!
   //! @warning This function will panic if the MMIO system has not been initialized!
-  //! @param base The start address of the region to release.
-  auto release_mmio_region(linear_address base) -> void;
+  //! @param region The region to release.
+  auto release_mmio_region(mmio_region region) -> void;
 
   //! @}