From 088fd67a38c7030ef0e6434472d64a3607c29100 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= <kyosti.malkki@gmail.com>
Date: Fri, 2 May 2014 14:13:37 +0300
Subject: AGESA: Implement EmptyHeap()
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Heap allocation begins with BIOS_HEAP_MANAGER, no need to clear
the fields individually.

Change-Id: Ia1af84bd09d1edf8f72223752557d44a96dec6e1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/5659
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
---
 src/northbridge/amd/agesa/family16kb/fam16kb_callouts.c | 7 +++++++
 src/northbridge/amd/agesa/family16kb/fam16kb_callouts.h | 1 +
 2 files changed, 8 insertions(+)

(limited to 'src/northbridge/amd/agesa/family16kb')

diff --git a/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.c b/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.c
index 8cc300c977..7dada18d10 100644
--- a/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.c
+++ b/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.c
@@ -28,6 +28,7 @@
 #include "fam16kb_callouts.h"
 #include <cbmem.h>
 #include <arch/acpi.h>
+#include <string.h>
 
 UINT32 GetHeapBase(AMD_CONFIG_PARAMS *StdHeader)
 {
@@ -44,6 +45,12 @@ UINT32 GetHeapBase(AMD_CONFIG_PARAMS *StdHeader)
 	return heap;
 }
 
+void EmptyHeap(void)
+{
+	void *BiosManagerPtr = (void *) GetHeapBase(NULL);
+	memset(BiosManagerPtr, 0, BIOS_HEAP_SIZE);
+}
+
 AGESA_STATUS fam16kb_AllocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
 {
 	UINT32              AvailableHeapSize;
diff --git a/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.h b/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.h
index 3d4e9792dd..57dd5546e6 100644
--- a/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.h
+++ b/src/northbridge/amd/agesa/family16kb/fam16kb_callouts.h
@@ -40,6 +40,7 @@ typedef struct _BIOS_BUFFER_NODE {
 } BIOS_BUFFER_NODE;
 
 UINT32 GetHeapBase(AMD_CONFIG_PARAMS *StdHeader);
+void EmptyHeap(void);
 
 AGESA_STATUS fam16kb_AllocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr);
 AGESA_STATUS fam16kb_DeallocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr);
-- 
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