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* [edk2-platforms] [PATCH v1] IntelSiliconPkg: Add DWORD_ALIGN macro
@ 2021-02-09 19:26 Nate DeSimone
  0 siblings, 0 replies; only message in thread
From: Nate DeSimone @ 2021-02-09 19:26 UTC (permalink / raw)
  To: devel; +Cc: Ray Ni, Rangasai V Chaganty

Adds a macro that rounds a given integer up to the nearest DWORD.
The config block data structure needs to be DWORD aligned. Since config blocks
are run-length encoded, the size of all config blocks therefore needs to be in
DWORD increments. This macro aids in storing arbitary data in a config block.

Cc: Ray Ni <ray.ni@intel.com>
Cc: Rangasai V Chaganty <rangasai.v.chaganty@intel.com>
Signed-off-by: Nate DeSimone <nathaniel.l.desimone@intel.com>
---
 Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h b/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h
index 37a3968168..0233137e99 100644
--- a/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h
+++ b/Silicon/Intel/IntelSiliconPkg/Include/Library/ConfigBlockLib.h
@@ -9,6 +9,8 @@
 #ifndef _CONFIG_BLOCK_LIB_H_
 #define _CONFIG_BLOCK_LIB_H_
 
+#define DWORD_ALIGN(x)   (((x) & 3) ? 0 : 1) ? x : (((x) + 4) & ((UINTN) ~0x3))
+
 /**
   Create config block table.
 
-- 
2.27.0.windows.1


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