-/** @file
-
- Copyright (c) 2008 - 2009, Apple 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.
-
-**/
-#include <Uefi.h>
-#include <Chipset/ArmV7.h>
-#include <Library/ArmLib.h>
-#include <Library/BaseLib.h>
-#include <Library/BaseMemoryLib.h>
-#include <Library/MemoryAllocationLib.h>
-#include "ArmV7Lib.h"
-#include "ArmLibPrivate.h"
-
-VOID
-FillTranslationTable (
- IN UINT32 *TranslationTable,
- IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryRegion
- )
-{
- UINT32 *Entry;
- UINTN Sections;
- UINTN Index;
- UINT32 Attributes;
- UINT32 PhysicalBase = MemoryRegion->PhysicalBase;
-
- switch (MemoryRegion->Attributes) {
- case ARM_MEMORY_REGION_ATTRIBUTE_WRITE_BACK:
- Attributes = TT_DESCRIPTOR_SECTION_WRITE_BACK;
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_WRITE_THROUGH:
- Attributes = TT_DESCRIPTOR_SECTION_WRITE_THROUGH;
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_DEVICE:
- Attributes = TT_DESCRIPTOR_SECTION_DEVICE;
- break;
- case ARM_MEMORY_REGION_ATTRIBUTE_UNCACHED_UNBUFFERED:
- default:
- Attributes = TT_DESCRIPTOR_SECTION_UNCACHED;
- break;
- }
-
- Entry = TRANSLATION_TABLE_ENTRY_FOR_VIRTUAL_ADDRESS(TranslationTable, MemoryRegion->VirtualBase);
- Sections = MemoryRegion->Length / TT_DESCRIPTOR_SECTION_SIZE;
-
- for (Index = 0; Index < Sections; Index++) {
- *Entry++ = TT_DESCRIPTOR_SECTION_BASE_ADDRESS(PhysicalBase) | Attributes;
- PhysicalBase += TT_DESCRIPTOR_SECTION_SIZE;
- }
-}
-
-VOID
-EFIAPI
-ArmConfigureMmu (
- IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable,
- OUT VOID **TranslationTableBase OPTIONAL,
- OUT UINTN *TranslationTableSize OPTIONAL
- )
-{
- VOID *TranslationTable;
-
- // Allocate pages for translation table.
- TranslationTable = AllocatePages(EFI_SIZE_TO_PAGES(TRANSLATION_TABLE_SIZE + TRANSLATION_TABLE_ALIGNMENT));
- TranslationTable = (VOID *)(((UINTN)TranslationTable + TRANSLATION_TABLE_ALIGNMENT_MASK) & ~TRANSLATION_TABLE_ALIGNMENT_MASK);
-
- if (TranslationTableBase != NULL) {
- *TranslationTableBase = TranslationTable;
- }
-
- if (TranslationTableBase != NULL) {
- *TranslationTableSize = TRANSLATION_TABLE_SIZE;
- }
-
- ZeroMem(TranslationTable, TRANSLATION_TABLE_SIZE);
-
- ArmCleanInvalidateDataCache();
- ArmInvalidateInstructionCache();
- ArmInvalidateTlb();
-
- ArmDisableDataCache();
- ArmDisableInstructionCache();
- ArmDisableMmu();
-
- // Make sure nothing sneaked into the cache
- ArmCleanInvalidateDataCache();
- ArmInvalidateInstructionCache();
-
- while (MemoryTable->Length != 0) {
- FillTranslationTable(TranslationTable, MemoryTable);
- MemoryTable++;
- }
-
- ArmSetTranslationTableBaseAddress(TranslationTable);
-
- ArmSetDomainAccessControl(DOMAIN_ACCESS_CONTROL_NONE(15) |
- DOMAIN_ACCESS_CONTROL_NONE(14) |
- DOMAIN_ACCESS_CONTROL_NONE(13) |
- DOMAIN_ACCESS_CONTROL_NONE(12) |
- DOMAIN_ACCESS_CONTROL_NONE(11) |
- DOMAIN_ACCESS_CONTROL_NONE(10) |
- DOMAIN_ACCESS_CONTROL_NONE( 9) |
- DOMAIN_ACCESS_CONTROL_NONE( 8) |
- DOMAIN_ACCESS_CONTROL_NONE( 7) |
- DOMAIN_ACCESS_CONTROL_NONE( 6) |
- DOMAIN_ACCESS_CONTROL_NONE( 5) |
- DOMAIN_ACCESS_CONTROL_NONE( 4) |
- DOMAIN_ACCESS_CONTROL_NONE( 3) |
- DOMAIN_ACCESS_CONTROL_NONE( 2) |
- DOMAIN_ACCESS_CONTROL_NONE( 1) |
- DOMAIN_ACCESS_CONTROL_MANAGER(0));
-
- ArmEnableInstructionCache();
- ArmEnableDataCache();
- ArmEnableMmu();
-}
-
-ARM_CACHE_TYPE
-EFIAPI
-ArmCacheType (
- VOID
- )
-{
- return ARM_CACHE_TYPE_WRITE_BACK;
-}
-
-ARM_CACHE_ARCHITECTURE
-EFIAPI
-ArmCacheArchitecture (
- VOID
- )
-{
- UINT32 CLIDR = ReadCLIDR ();
-
- return CLIDR; // BugBug Fix Me
-}
-
-BOOLEAN
-EFIAPI
-ArmDataCachePresent (
- VOID
- )
-{
- UINT32 CLIDR = ReadCLIDR ();
-
- if ((CLIDR & 0x2) == 0x2) {
- // Instruction cache exists
- return TRUE;
- }
- if ((CLIDR & 0x7) == 0x4) {
- // Unified cache
- return TRUE;
- }
-
- return FALSE;
-}
-
-UINTN
-EFIAPI
-ArmDataCacheSize (
- VOID
- )
-{
- UINT32 NumSets;
- UINT32 Associativity;
- UINT32 LineSize;
- UINT32 CCSIDR = ReadCCSIDR (0);
-
- LineSize = (1 << (CCSIDR + 2));
- Associativity = ((CCSIDR >> 3) & 0x3ff) + 1;
- NumSets = ((CCSIDR >> 13) & 0x7fff) + 1;
-
- // LineSize is in words (4 byte chunks)
- return NumSets * Associativity * LineSize * 4;
-}
-
-UINTN
-EFIAPI
-ArmDataCacheAssociativity (
- VOID
- )
-{
- UINT32 CCSIDR = ReadCCSIDR (0);
-
- return ((CCSIDR >> 3) & 0x3ff) + 1;
-}
-
-UINTN
-ArmDataCacheSets (
- VOID
- )
-{
- UINT32 CCSIDR = ReadCCSIDR (0);
-
- return ((CCSIDR >> 13) & 0x7fff) + 1;
-}
-
-UINTN
-EFIAPI
-ArmDataCacheLineLength (
- VOID
- )
-{
- UINT32 CCSIDR = ReadCCSIDR (0) & 7;
-
- // * 4 converts to bytes
- return (1 << (CCSIDR + 2)) * 4;
-}
-
-BOOLEAN
-EFIAPI
-ArmInstructionCachePresent (
- VOID
- )
-{
- UINT32 CLIDR = ReadCLIDR ();
-
- if ((CLIDR & 1) == 1) {
- // Instruction cache exists
- return TRUE;
- }
- if ((CLIDR & 0x7) == 0x4) {
- // Unified cache
- return TRUE;
- }
-
- return FALSE;
-}
-
-UINTN
-EFIAPI
-ArmInstructionCacheSize (
- VOID
- )
-{
- UINT32 NumSets;
- UINT32 Associativity;
- UINT32 LineSize;
- UINT32 CCSIDR = ReadCCSIDR (1);
-
- LineSize = (1 << (CCSIDR + 2));
- Associativity = ((CCSIDR >> 3) & 0x3ff) + 1;
- NumSets = ((CCSIDR >> 13) & 0x7fff) + 1;
-
- // LineSize is in words (4 byte chunks)
- return NumSets * Associativity * LineSize * 4;
-}
-
-UINTN
-EFIAPI
-ArmInstructionCacheAssociativity (
- VOID
- )
-{
- UINT32 CCSIDR = ReadCCSIDR (1);
-
- return ((CCSIDR >> 3) & 0x3ff) + 1;
-// return 4;
-}
-
-UINTN
-EFIAPI
-ArmInstructionCacheSets (
- VOID
- )
-{
- UINT32 CCSIDR = ReadCCSIDR (1);
-
- return ((CCSIDR >> 13) & 0x7fff) + 1;
-}
-
-UINTN
-EFIAPI
-ArmInstructionCacheLineLength (
- VOID
- )
-{
- UINT32 CCSIDR = ReadCCSIDR (1) & 7;
-
- // * 4 converts to bytes
- return (1 << (CCSIDR + 2)) * 4;
-
-// return 64;
-}
-
-
-VOID
-ArmV7DataCacheOperation (
- IN ARM_V7_CACHE_OPERATION DataCacheOperation
- )
-{
- UINTN SavedInterruptState;
-
- SavedInterruptState = ArmGetInterruptState ();
-
- ArmV7AllDataCachesOperation (DataCacheOperation);
-
- ArmDrainWriteBuffer ();
-
- if (SavedInterruptState) {
- ArmEnableInterrupts ();
- }
-}
-
-VOID
-EFIAPI
-ArmInvalidateDataCache (
- VOID
- )
-{
- ArmV7DataCacheOperation (ArmInvalidateDataCacheEntryBySetWay);
-}
-
-VOID
-EFIAPI
-ArmCleanInvalidateDataCache (
- VOID
- )
-{
- ArmV7DataCacheOperation (ArmCleanInvalidateDataCacheEntryBySetWay);
-}
-
-VOID
-EFIAPI
-ArmCleanDataCache (
- VOID
- )
-{
- ArmV7DataCacheOperation (ArmCleanDataCacheEntryBySetWay);
-}
+/** @file\r
+\r
+ Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
+ Copyright (c) 2011 - 2014, ARM Limited. All rights reserved.\r
+\r
+ This program and the accompanying materials\r
+ are licensed and made available under the terms and conditions of the BSD License\r
+ which accompanies this distribution. The full text of the license may be found at\r
+ http://opensource.org/licenses/bsd-license.php\r
+\r
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+#include <Uefi.h>\r
+#include <Chipset/ArmV7.h>\r
+#include <Library/ArmLib.h>\r
+#include <Library/BaseLib.h>\r
+#include <Library/IoLib.h>\r
+#include "ArmV7Lib.h"\r
+#include "ArmLibPrivate.h"\r
+\r
+VOID\r
+ArmV7DataCacheOperation (\r
+ IN ARM_V7_CACHE_OPERATION DataCacheOperation\r
+ )\r
+{\r
+ UINTN SavedInterruptState;\r
+\r
+ SavedInterruptState = ArmGetInterruptState ();\r
+ ArmDisableInterrupts ();\r
+\r
+ ArmV7AllDataCachesOperation (DataCacheOperation);\r
+\r
+ ArmDataSynchronizationBarrier ();\r
+\r
+ if (SavedInterruptState) {\r
+ ArmEnableInterrupts ();\r
+ }\r
+}\r
+\r
+VOID\r
+EFIAPI\r
+ArmInvalidateDataCache (\r
+ VOID\r
+ )\r
+{\r
+ ArmDataSynchronizationBarrier ();\r
+ ArmV7DataCacheOperation (ArmInvalidateDataCacheEntryBySetWay);\r
+}\r
+\r
+VOID\r
+EFIAPI\r
+ArmCleanInvalidateDataCache (\r
+ VOID\r
+ )\r
+{\r
+ ArmDataSynchronizationBarrier ();\r
+ ArmV7DataCacheOperation (ArmCleanInvalidateDataCacheEntryBySetWay);\r
+}\r
+\r
+VOID\r
+EFIAPI\r
+ArmCleanDataCache (\r
+ VOID\r
+ )\r
+{\r
+ ArmDataSynchronizationBarrier ();\r
+ ArmV7DataCacheOperation (ArmCleanDataCacheEntryBySetWay);\r
+}\r