diff options
Diffstat (limited to 'Silicon/AMD/Styx/Library/AmdStyxLib/StyxMem.c')
| -rw-r--r-- | Silicon/AMD/Styx/Library/AmdStyxLib/StyxMem.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/Silicon/AMD/Styx/Library/AmdStyxLib/StyxMem.c b/Silicon/AMD/Styx/Library/AmdStyxLib/StyxMem.c new file mode 100644 index 0000000000..3b82132d08 --- /dev/null +++ b/Silicon/AMD/Styx/Library/AmdStyxLib/StyxMem.c @@ -0,0 +1,118 @@ +/** @file
+*
+* Copyright (c) 2011-2014, ARM Limited. All rights reserved.<BR>
+* Copyright (c) 2014 - 2016, AMD Inc. All rights reserved.<BR>
+*
+* This program and the accompanying materials
+* are licensed and made available under the terms and conditions of the BSD License
+* which accompanies this distribution. The full text of the license may be found at
+* http://opensource.org/licenses/bsd-license.php
+*
+* THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+* WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+/**
+ Derived from:
+ ArmPlatformPkg/ArmVExpressPkg/Library/ArmVExpressLibRTSM/RTSMMem.c
+
+**/
+
+#include <Library/ArmPlatformLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/IoLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/HobLib.h>
+
+#if !defined(MDEPKG_NDEBUG)
+
+static const char *tblAttrDesc[] =
+{
+ "UNCACHED_UNBUFFERED ",
+ "NONSECURE_UNCACHED_UNBUFFERED",
+ "WRITE_BACK ",
+ "NONSECURE_WRITE_BACK ",
+ "WRITE_THROUGH ",
+ "NONSECURE_WRITE_THROUGH ",
+ "DEVICE ",
+ "NONSECURE_DEVICE "
+};
+#endif
+
+#define LOG_MEM(desc) DEBUG ((EFI_D_ERROR, desc, VirtualMemoryTable[Index].PhysicalBase, \
+ ( VirtualMemoryTable[Index].PhysicalBase+VirtualMemoryTable[Index].Length - 1), \
+ VirtualMemoryTable[Index].Length, tblAttrDesc[VirtualMemoryTable[Index].Attributes]));
+
+
+// Number of Virtual Memory Map Descriptors
+#define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS 16
+
+// DDR attributes
+#define DDR_ATTRIBUTES_CACHED ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK
+#define DDR_ATTRIBUTES_UNCACHED ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED
+
+/**
+ Return the Virtual Memory Map of your platform
+
+ This Virtual Memory Map is used by MemoryInitPei Module to initialize the MMU on your platform.
+
+ @param[out] VirtualMemoryMap Array of ARM_MEMORY_REGION_DESCRIPTOR describing a Physical-to-
+ Virtual Memory mapping. This array must be ended by a zero-filled
+ entry
+
+**/
+VOID
+ArmPlatformGetVirtualMemoryMap (
+ IN ARM_MEMORY_REGION_DESCRIPTOR** VirtualMemoryMap
+ )
+{
+ ARM_MEMORY_REGION_ATTRIBUTES CacheAttributes;
+ UINTN Index = 0;
+ ARM_MEMORY_REGION_DESCRIPTOR *VirtualMemoryTable;
+
+ ASSERT(VirtualMemoryMap != NULL);
+
+ VirtualMemoryTable = (ARM_MEMORY_REGION_DESCRIPTOR*)AllocatePages(EFI_SIZE_TO_PAGES (sizeof(ARM_MEMORY_REGION_DESCRIPTOR) * MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS));
+ if (VirtualMemoryTable == NULL) {
+ return;
+ }
+
+ if (FeaturePcdGet(PcdCacheEnable) == TRUE) {
+ CacheAttributes = DDR_ATTRIBUTES_CACHED;
+ } else {
+ CacheAttributes = DDR_ATTRIBUTES_UNCACHED;
+ }
+
+ DEBUG ((EFI_D_ERROR, " Memory Map\n------------------------------------------------------------------------\n"));
+ DEBUG ((EFI_D_ERROR, "Description : START - END [ SIZE ] { ATTR }\n"));
+
+ // 0xE000_0000 - 0xEFFF_FFFF: Mapped I/O space
+ VirtualMemoryTable[Index].PhysicalBase = 0xE0000000UL;
+ VirtualMemoryTable[Index].VirtualBase = 0xE0000000UL;
+ VirtualMemoryTable[Index].Length = SIZE_256MB;
+ VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+ LOG_MEM ("I/O Space [Platform MMIO] : 0x%016lx - 0x%016lx [ 0x%016lx ] { %a }\n");
+
+ // 0xF000_0000 - 0xFFFF_FFFF: PCI config space
+ VirtualMemoryTable[++Index].PhysicalBase = 0xF0000000UL;
+ VirtualMemoryTable[Index].VirtualBase = 0xF0000000UL;
+ VirtualMemoryTable[Index].Length = SIZE_256MB;
+ VirtualMemoryTable[Index].Attributes = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
+ LOG_MEM ("I/O Space [PCI config space] : 0x%016lx - 0x%016lx [ 0x%016lx ] { %a }\n");
+
+ // DRAM
+ VirtualMemoryTable[++Index].PhysicalBase = PcdGet64 (PcdSystemMemoryBase);
+ VirtualMemoryTable[Index].VirtualBase = PcdGet64 (PcdSystemMemoryBase);
+ VirtualMemoryTable[Index].Length = PcdGet64 (PcdSystemMemorySize);
+ VirtualMemoryTable[Index].Attributes = CacheAttributes;
+ LOG_MEM ("DRAM : 0x%016lx - 0x%016lx [ 0x%016lx ] { %a }\n");
+
+ // End of Table
+ VirtualMemoryTable[++Index].PhysicalBase = 0;
+ VirtualMemoryTable[Index].VirtualBase = 0;
+ VirtualMemoryTable[Index].Length = 0;
+ VirtualMemoryTable[Index].Attributes = (ARM_MEMORY_REGION_ATTRIBUTES)0;
+
+ *VirtualMemoryMap = VirtualMemoryTable;
+}
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