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-rw-r--r--src/cpu/amd/agesa/Makefile.inc3
-rw-r--r--src/cpu/amd/agesa/heapmanager.c342
2 files changed, 345 insertions, 0 deletions
diff --git a/src/cpu/amd/agesa/Makefile.inc b/src/cpu/amd/agesa/Makefile.inc
index dbdfba9adf..4dfb173d89 100644
--- a/src/cpu/amd/agesa/Makefile.inc
+++ b/src/cpu/amd/agesa/Makefile.inc
@@ -26,3 +26,6 @@ subdirs-$(CONFIG_CPU_AMD_AGESA_FAMILY16_KB) += family16kb
romstage-$(CONFIG_HAVE_ACPI_RESUME) += s3_resume.c
ramstage-$(CONFIG_HAVE_ACPI_RESUME) += s3_resume.c
cpu_incs += $(src)/cpu/amd/agesa/cache_as_ram.inc
+
+romstage-y += heapmanager.c
+ramstage-y += heapmanager.c
diff --git a/src/cpu/amd/agesa/heapmanager.c b/src/cpu/amd/agesa/heapmanager.c
new file mode 100644
index 0000000000..0f908ccde9
--- /dev/null
+++ b/src/cpu/amd/agesa/heapmanager.c
@@ -0,0 +1,342 @@
+
+#include "agesawrapper.h"
+#include "amdlib.h"
+#include "northbridge/amd/agesa/def_callouts.h"
+#include "heapManager.h"
+
+#include <cbmem.h>
+#include <arch/acpi.h>
+#include <string.h>
+
+UINT32 GetHeapBase(AMD_CONFIG_PARAMS *StdHeader)
+{
+ UINT32 heap = BIOS_HEAP_START_ADDRESS;
+
+#if CONFIG_HAVE_ACPI_RESUME
+ /* Both romstage and ramstage has this S3 detect. */
+ if (acpi_get_sleep_type() == 3)
+ heap = (UINT32) cbmem_find(CBMEM_ID_RESUME_SCRATCH) +
+ (CONFIG_HIGH_SCRATCH_MEMORY_SIZE - BIOS_HEAP_SIZE);
+ /* himem_heap_base + high_stack_size */
+#endif
+ return heap;
+}
+
+void EmptyHeap(void)
+{
+ void *BiosManagerPtr = (void *) GetHeapBase(NULL);
+ memset(BiosManagerPtr, 0, BIOS_HEAP_SIZE);
+}
+
+#if CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY15_TN
+
+#define AGESA_RUNTIME_SIZE 4096
+
+static AGESA_STATUS alloc_cbmem(AGESA_BUFFER_PARAMS *AllocParams) {
+ static unsigned int used = 0;
+ void *p = cbmem_find(CBMEM_ID_AGESA_RUNTIME);
+
+ if ((AGESA_RUNTIME_SIZE - used) < AllocParams->BufferLength) {
+ return AGESA_BOUNDS_CHK;
+ }
+
+ /* first time allocation */
+ if (!p) {
+ p = cbmem_add(CBMEM_ID_AGESA_RUNTIME, AGESA_RUNTIME_SIZE);
+ if (!p)
+ return AGESA_BOUNDS_CHK;
+ }
+
+ AllocParams->BufferPointer = p + used;
+ used += AllocParams->BufferLength;
+ return AGESA_SUCCESS;
+}
+#endif
+
+AGESA_STATUS agesa_AllocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
+{
+ UINT32 AvailableHeapSize;
+ UINT8 *BiosHeapBaseAddr;
+ UINT32 CurrNodeOffset;
+ UINT32 PrevNodeOffset;
+ UINT32 FreedNodeOffset;
+ UINT32 BestFitNodeOffset;
+ UINT32 BestFitPrevNodeOffset;
+ UINT32 NextFreeOffset;
+ BIOS_BUFFER_NODE *CurrNodePtr;
+ BIOS_BUFFER_NODE *FreedNodePtr;
+ BIOS_BUFFER_NODE *BestFitNodePtr;
+ BIOS_BUFFER_NODE *BestFitPrevNodePtr;
+ BIOS_BUFFER_NODE *NextFreePtr;
+ BIOS_HEAP_MANAGER *BiosHeapBasePtr;
+ AGESA_BUFFER_PARAMS *AllocParams;
+
+ AllocParams = ((AGESA_BUFFER_PARAMS *) ConfigPtr);
+ AllocParams->BufferPointer = NULL;
+
+#if CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY15_TN
+ /* if the allocation is for runtime use simple CBMEM data */
+ if (Data == HEAP_CALLOUT_RUNTIME)
+ return alloc_cbmem(AllocParams);
+#endif
+
+ AvailableHeapSize = BIOS_HEAP_SIZE - sizeof (BIOS_HEAP_MANAGER);
+ BiosHeapBaseAddr = (UINT8 *) GetHeapBase(&(AllocParams->StdHeader));
+ BiosHeapBasePtr = (BIOS_HEAP_MANAGER *) BiosHeapBaseAddr;
+
+ if (BiosHeapBasePtr->StartOfAllocatedNodes == 0) {
+ /* First allocation */
+ CurrNodeOffset = sizeof (BIOS_HEAP_MANAGER);
+ CurrNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + CurrNodeOffset);
+ CurrNodePtr->BufferHandle = AllocParams->BufferHandle;
+ CurrNodePtr->BufferSize = AllocParams->BufferLength;
+ CurrNodePtr->NextNodeOffset = 0;
+ AllocParams->BufferPointer = (UINT8 *) CurrNodePtr + sizeof (BIOS_BUFFER_NODE);
+
+ /* Update the remaining free space */
+ FreedNodeOffset = CurrNodeOffset + CurrNodePtr->BufferSize + sizeof (BIOS_BUFFER_NODE);
+ FreedNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + FreedNodeOffset);
+ FreedNodePtr->BufferSize = AvailableHeapSize - sizeof (BIOS_BUFFER_NODE) - CurrNodePtr->BufferSize;
+ FreedNodePtr->NextNodeOffset = 0;
+
+ /* Update the offsets for Allocated and Freed nodes */
+ BiosHeapBasePtr->StartOfAllocatedNodes = CurrNodeOffset;
+ BiosHeapBasePtr->StartOfFreedNodes = FreedNodeOffset;
+ } else {
+ /* Find out whether BufferHandle has been allocated on the heap.
+ * If it has, return AGESA_BOUNDS_CHK.
+ */
+ CurrNodeOffset = BiosHeapBasePtr->StartOfAllocatedNodes;
+ CurrNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + CurrNodeOffset);
+
+ while (CurrNodeOffset != 0) {
+ CurrNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + CurrNodeOffset);
+ if (CurrNodePtr->BufferHandle == AllocParams->BufferHandle) {
+ return AGESA_BOUNDS_CHK;
+ }
+ CurrNodeOffset = CurrNodePtr->NextNodeOffset;
+ /* If BufferHandle has not been allocated on the heap, CurrNodePtr here points
+ * to the end of the allocated nodes list.
+ */
+ }
+ /* Find the node that best fits the requested buffer size */
+ FreedNodeOffset = BiosHeapBasePtr->StartOfFreedNodes;
+ PrevNodeOffset = FreedNodeOffset;
+ BestFitNodeOffset = 0;
+ BestFitPrevNodeOffset = 0;
+ while (FreedNodeOffset != 0) {
+ FreedNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + FreedNodeOffset);
+ if (FreedNodePtr->BufferSize >= (AllocParams->BufferLength + sizeof (BIOS_BUFFER_NODE))) {
+ if (BestFitNodeOffset == 0) {
+ /* First node that fits the requested buffer size */
+ BestFitNodeOffset = FreedNodeOffset;
+ BestFitPrevNodeOffset = PrevNodeOffset;
+ } else {
+ /* Find out whether current node is a better fit than the previous nodes */
+ BestFitNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + BestFitNodeOffset);
+ if (BestFitNodePtr->BufferSize > FreedNodePtr->BufferSize) {
+ BestFitNodeOffset = FreedNodeOffset;
+ BestFitPrevNodeOffset = PrevNodeOffset;
+ }
+ }
+ }
+ PrevNodeOffset = FreedNodeOffset;
+ FreedNodeOffset = FreedNodePtr->NextNodeOffset;
+ } /* end of while loop */
+
+ if (BestFitNodeOffset == 0) {
+ /* If we could not find a node that fits the requested buffer
+ * size, return AGESA_BOUNDS_CHK.
+ */
+ return AGESA_BOUNDS_CHK;
+ } else {
+ BestFitNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + BestFitNodeOffset);
+ BestFitPrevNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + BestFitPrevNodeOffset);
+
+ /* If BestFitNode is larger than the requested buffer, fragment the node further */
+ if (BestFitNodePtr->BufferSize > (AllocParams->BufferLength + sizeof (BIOS_BUFFER_NODE))) {
+ NextFreeOffset = BestFitNodeOffset + AllocParams->BufferLength + sizeof (BIOS_BUFFER_NODE);
+
+ NextFreePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + NextFreeOffset);
+ NextFreePtr->BufferSize = BestFitNodePtr->BufferSize - (AllocParams->BufferLength + sizeof (BIOS_BUFFER_NODE));
+ NextFreePtr->NextNodeOffset = BestFitNodePtr->NextNodeOffset;
+ } else {
+ /* Otherwise, next free node is NextNodeOffset of BestFitNode */
+ NextFreeOffset = BestFitNodePtr->NextNodeOffset;
+ }
+
+ /* If BestFitNode is the first buffer in the list, then update
+ * StartOfFreedNodes to reflect the new free node.
+ */
+ if (BestFitNodeOffset == BiosHeapBasePtr->StartOfFreedNodes) {
+ BiosHeapBasePtr->StartOfFreedNodes = NextFreeOffset;
+ } else {
+ BestFitPrevNodePtr->NextNodeOffset = NextFreeOffset;
+ }
+
+ /* Add BestFitNode to the list of Allocated nodes */
+ CurrNodePtr->NextNodeOffset = BestFitNodeOffset;
+ BestFitNodePtr->BufferSize = AllocParams->BufferLength;
+ BestFitNodePtr->BufferHandle = AllocParams->BufferHandle;
+ BestFitNodePtr->NextNodeOffset = 0;
+
+ /* Remove BestFitNode from list of Freed nodes */
+ AllocParams->BufferPointer = (UINT8 *) BestFitNodePtr + sizeof (BIOS_BUFFER_NODE);
+ }
+ }
+
+ return AGESA_SUCCESS;
+}
+
+AGESA_STATUS agesa_DeallocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
+{
+
+ UINT8 *BiosHeapBaseAddr;
+ UINT32 AllocNodeOffset;
+ UINT32 PrevNodeOffset;
+ UINT32 NextNodeOffset;
+ UINT32 FreedNodeOffset;
+ UINT32 EndNodeOffset;
+ BIOS_BUFFER_NODE *AllocNodePtr;
+ BIOS_BUFFER_NODE *PrevNodePtr;
+ BIOS_BUFFER_NODE *FreedNodePtr;
+ BIOS_BUFFER_NODE *NextNodePtr;
+ BIOS_HEAP_MANAGER *BiosHeapBasePtr;
+ AGESA_BUFFER_PARAMS *AllocParams;
+
+ AllocParams = (AGESA_BUFFER_PARAMS *) ConfigPtr;
+
+ BiosHeapBaseAddr = (UINT8 *) GetHeapBase(&(AllocParams->StdHeader));
+ BiosHeapBasePtr = (BIOS_HEAP_MANAGER *) BiosHeapBaseAddr;
+
+ /* Find target node to deallocate in list of allocated nodes.
+ * Return AGESA_BOUNDS_CHK if the BufferHandle is not found.
+ */
+ AllocNodeOffset = BiosHeapBasePtr->StartOfAllocatedNodes;
+ AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+ PrevNodeOffset = AllocNodeOffset;
+
+ while (AllocNodePtr->BufferHandle != AllocParams->BufferHandle) {
+ if (AllocNodePtr->NextNodeOffset == 0) {
+ return AGESA_BOUNDS_CHK;
+ }
+ PrevNodeOffset = AllocNodeOffset;
+ AllocNodeOffset = AllocNodePtr->NextNodeOffset;
+ AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+ }
+
+ /* Remove target node from list of allocated nodes */
+ PrevNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + PrevNodeOffset);
+ PrevNodePtr->NextNodeOffset = AllocNodePtr->NextNodeOffset;
+
+ /* Zero out the buffer, and clear the BufferHandle */
+ LibAmdMemFill ((UINT8 *)AllocNodePtr + sizeof (BIOS_BUFFER_NODE), 0, AllocNodePtr->BufferSize, &(AllocParams->StdHeader));
+ AllocNodePtr->BufferHandle = 0;
+ AllocNodePtr->BufferSize += sizeof (BIOS_BUFFER_NODE);
+
+ /* Add deallocated node in order to the list of freed nodes */
+ FreedNodeOffset = BiosHeapBasePtr->StartOfFreedNodes;
+ FreedNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + FreedNodeOffset);
+
+ EndNodeOffset = AllocNodeOffset + AllocNodePtr->BufferSize;
+
+ if (AllocNodeOffset < FreedNodeOffset) {
+ /* Add to the start of the freed list */
+ if (EndNodeOffset == FreedNodeOffset) {
+ /* If the freed node is adjacent to the first node in the list, concatenate both nodes */
+ AllocNodePtr->BufferSize += FreedNodePtr->BufferSize;
+ AllocNodePtr->NextNodeOffset = FreedNodePtr->NextNodeOffset;
+
+ /* Clear the BufferSize and NextNodeOffset of the previous first node */
+ FreedNodePtr->BufferSize = 0;
+ FreedNodePtr->NextNodeOffset = 0;
+
+ } else {
+ /* Otherwise, add freed node to the start of the list
+ * Update NextNodeOffset and BufferSize to include the
+ * size of BIOS_BUFFER_NODE.
+ */
+ AllocNodePtr->NextNodeOffset = FreedNodeOffset;
+ }
+ /* Update StartOfFreedNodes to the new first node */
+ BiosHeapBasePtr->StartOfFreedNodes = AllocNodeOffset;
+ } else {
+ /* Traverse list of freed nodes to find where the deallocated node
+ * should be placed.
+ */
+ NextNodeOffset = FreedNodeOffset;
+ NextNodePtr = FreedNodePtr;
+ while (AllocNodeOffset > NextNodeOffset) {
+ PrevNodeOffset = NextNodeOffset;
+ if (NextNodePtr->NextNodeOffset == 0) {
+ break;
+ }
+ NextNodeOffset = NextNodePtr->NextNodeOffset;
+ NextNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + NextNodeOffset);
+ }
+
+ /* If deallocated node is adjacent to the next node,
+ * concatenate both nodes.
+ */
+ if (NextNodeOffset == EndNodeOffset) {
+ NextNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + NextNodeOffset);
+ AllocNodePtr->BufferSize += NextNodePtr->BufferSize;
+ AllocNodePtr->NextNodeOffset = NextNodePtr->NextNodeOffset;
+
+ NextNodePtr->BufferSize = 0;
+ NextNodePtr->NextNodeOffset = 0;
+ } else {
+ /*AllocNodePtr->NextNodeOffset = FreedNodePtr->NextNodeOffset; */
+ AllocNodePtr->NextNodeOffset = NextNodeOffset;
+ }
+ /* If deallocated node is adjacent to the previous node,
+ * concatenate both nodes.
+ */
+ PrevNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + PrevNodeOffset);
+ EndNodeOffset = PrevNodeOffset + PrevNodePtr->BufferSize;
+ if (AllocNodeOffset == EndNodeOffset) {
+ PrevNodePtr->NextNodeOffset = AllocNodePtr->NextNodeOffset;
+ PrevNodePtr->BufferSize += AllocNodePtr->BufferSize;
+
+ AllocNodePtr->BufferSize = 0;
+ AllocNodePtr->NextNodeOffset = 0;
+ } else {
+ PrevNodePtr->NextNodeOffset = AllocNodeOffset;
+ }
+ }
+ return AGESA_SUCCESS;
+}
+
+AGESA_STATUS agesa_LocateBuffer (UINT32 Func, UINT32 Data, VOID *ConfigPtr)
+{
+ UINT32 AllocNodeOffset;
+ UINT8 *BiosHeapBaseAddr;
+ BIOS_BUFFER_NODE *AllocNodePtr;
+ BIOS_HEAP_MANAGER *BiosHeapBasePtr;
+ AGESA_BUFFER_PARAMS *AllocParams;
+
+ AllocParams = (AGESA_BUFFER_PARAMS *) ConfigPtr;
+
+ BiosHeapBaseAddr = (UINT8 *) GetHeapBase(&(AllocParams->StdHeader));
+ BiosHeapBasePtr = (BIOS_HEAP_MANAGER *) BiosHeapBaseAddr;
+
+ AllocNodeOffset = BiosHeapBasePtr->StartOfAllocatedNodes;
+ AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+
+ while (AllocParams->BufferHandle != AllocNodePtr->BufferHandle) {
+ if (AllocNodePtr->NextNodeOffset == 0) {
+ AllocParams->BufferPointer = NULL;
+ AllocParams->BufferLength = 0;
+ return AGESA_BOUNDS_CHK;
+ } else {
+ AllocNodeOffset = AllocNodePtr->NextNodeOffset;
+ AllocNodePtr = (BIOS_BUFFER_NODE *) (BiosHeapBaseAddr + AllocNodeOffset);
+ }
+ }
+
+ AllocParams->BufferPointer = (UINT8 *) ((UINT8 *) AllocNodePtr + sizeof (BIOS_BUFFER_NODE));
+ AllocParams->BufferLength = AllocNodePtr->BufferSize;
+
+ return AGESA_SUCCESS;
+
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-17 09:59:48 +0000