EmbeddedPkg/PrePiLib: Correct function name

[mirror_edk2.git] / EmbeddedPkg / Include / Library / DmaLib.h

diff --git a/EmbeddedPkg/Include/Library/DmaLib.h b/EmbeddedPkg/Include/Library/DmaLib.h
index 3814291c2875a26e34db78f6c8a1b168d56a112c..1843814c65cad4b27e729631a7563215f4565872 100644 (file)
--- a/EmbeddedPkg/Include/Library/DmaLib.h
+++ b/EmbeddedPkg/Include/Library/DmaLib.h
@@ -155,5 +155,33 @@ DmaFreeBuffer (
   );\r
 \r
 \r
-#endif\r
+/**\r
+  Allocates pages that are suitable for an DmaMap() of type\r
+  MapOperationBusMasterCommonBuffer mapping, at the requested alignment.\r
+\r
+  @param  MemoryType            The type of memory to allocate, EfiBootServicesData or\r
+                                EfiRuntimeServicesData.\r
+  @param  Pages                 The number of pages to allocate.\r
+  @param  Alignment             Alignment in bytes of the base of the returned\r
+                                buffer (must be a power of 2)\r
+  @param  HostAddress           A pointer to store the base system memory address of the\r
+                                allocated range.\r
 \r
+  @retval EFI_SUCCESS           The requested memory pages were allocated.\r
+  @retval EFI_UNSUPPORTED       Attributes is unsupported. The only legal attribute bits are\r
+                                MEMORY_WRITE_COMBINE and MEMORY_CACHED.\r
+  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.\r
+  @retval EFI_OUT_OF_RESOURCES  The memory pages could not be allocated.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+DmaAllocateAlignedBuffer (\r
+  IN  EFI_MEMORY_TYPE              MemoryType,\r
+  IN  UINTN                        Pages,\r
+  IN  UINTN                        Alignment,\r
+  OUT VOID                         **HostAddress\r
+  );\r
+\r
+\r
+#endif\r