EmbeddedPkg/CoherentDmaLib: add support for non-1:1 DMA translation

[mirror_edk2.git] / EmbeddedPkg / EmbeddedPkg.dec

diff --git a/EmbeddedPkg/EmbeddedPkg.dec b/EmbeddedPkg/EmbeddedPkg.dec
index e6861cb59c5bcfb0dabe45147fb0314eebebf2f1..0be102ad9c767d81a004c757f40a65063aab1d7a 100644 (file)
--- a/EmbeddedPkg/EmbeddedPkg.dec
+++ b/EmbeddedPkg/EmbeddedPkg.dec
@@ -205,3 +205,10 @@
 \r
 [PcdsFixedAtBuild.common, PcdsDynamic.common]\r
   gEmbeddedTokenSpaceGuid.PcdFdtDevicePaths|L""|VOID*|0x00000055\r
+\r
+  #\r
+  # Value to add to a host address to obtain a device address, using\r
+  # unsigned 64-bit integer arithmetic. This means we can rely on\r
+  # truncation on overflow to specify negative offsets.\r
+  #\r
+  gEmbeddedTokenSpaceGuid.PcdDmaDeviceOffset|0x0|UINT64|0x0000058\r