Flush cache after every write to in memory serial

2019-02-23 16:37:11 -08:00 · 2019-02-23 16:37:11 -08:00 · aa8f3cccae
commit aa8f3cccae
parent 941ccaf626
2 changed files with 5 additions and 0 deletions
--- a/Pixel3XL/Library/InMemorySerialPortLib/InMemorySerialPortLib.c
+++ b/Pixel3XL/Library/InMemorySerialPortLib/InMemorySerialPortLib.c
@ -15,6 +15,7 @@

 #include <Base.h>
 #include <Library/SerialPortLib.h>
+#include <Library/CacheMaintenanceLib.h>

 /**
  Initialize the serial device hardware.
@ -50,6 +51,7 @@ static void mem_putchar(UINT8 c) {
  if (offset >= size) {
    offset = 0;
  }
+  WriteBackInvalidateDataCacheRange(base, size);
 }

 /**
--- a/Pixel3XL/Library/InMemorySerialPortLib/InMemorySerialPortLib.inf
+++ b/Pixel3XL/Library/InMemorySerialPortLib/InMemorySerialPortLib.inf
@ -34,3 +34,6 @@
 [Packages]
  MdePkg/MdePkg.dec

+[LibraryClasses]
+  CacheMaintenanceLib
+