ArmPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / ArmPkg / Drivers / CpuDxe / CpuMmuCommon.c

diff --git a/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c b/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c
index 723604d1df966ecb0db083e4c4f749443e10de60..13fa7cd01ebac7a75c448c0a6bea44b76af854bf 100644 (file)
--- a/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c
+++ b/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c
@@ -1,14 +1,9 @@
 /** @file\r
 *\r
 *  Copyright (c) 2013, ARM Limited. All rights reserved.\r
+*  Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\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
+*  SPDX-License-Identifier: BSD-2-Clause-Patent\r
 *\r
 **/\r
 \r
@@ -187,6 +182,10 @@ CpuSetMemoryAttributes (
   UINTN       RegionLength;\r
   UINTN       RegionArmAttributes;\r
 \r
+  if (mIsFlushingGCD) {\r
+    return EFI_SUCCESS;\r
+  }\r
+\r
   if ((BaseAddress & (SIZE_4KB - 1)) != 0) {\r
     // Minimum granularity is SIZE_4KB (4KB on ARM)\r
     DEBUG ((EFI_D_PAGE, "CpuSetMemoryAttributes(%lx, %lx, %lx): Minimum ganularity is SIZE_4KB\n", BaseAddress, Length, EfiAttributes));\r
@@ -205,78 +204,8 @@ CpuSetMemoryAttributes (
   if (EFI_ERROR (Status) || (RegionArmAttributes != ArmAttributes) ||\r
       ((BaseAddress + Length) > (RegionBaseAddress + RegionLength)))\r
   {\r
-    return SetMemoryAttributes (BaseAddress, Length, EfiAttributes, 0);\r
+    return ArmSetMemoryAttributes (BaseAddress, Length, EfiAttributes);\r
   } else {\r
     return EFI_SUCCESS;\r
   }\r
 }\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-CpuConvertPagesToUncachedVirtualAddress (\r
-  IN  VIRTUAL_UNCACHED_PAGES_PROTOCOL  *This,\r
-  IN  EFI_PHYSICAL_ADDRESS              Address,\r
-  IN  UINTN                             Length,\r
-  IN  EFI_PHYSICAL_ADDRESS              VirtualMask,\r
-  OUT UINT64                           *Attributes     OPTIONAL\r
-  )\r
-{\r
-  EFI_STATUS                      Status;\r
-  EFI_GCD_MEMORY_SPACE_DESCRIPTOR GcdDescriptor;\r
-\r
-  if (Attributes != NULL) {\r
-    Status = gDS->GetMemorySpaceDescriptor (Address, &GcdDescriptor);\r
-    if (!EFI_ERROR (Status)) {\r
-      *Attributes = GcdDescriptor.Attributes;\r
-    }\r
-  }\r
-\r
-  //\r
-  // Make this address range page fault if accessed. If it is a DMA buffer than this would\r
-  // be the PCI address. Code should always use the CPU address, and we will or in VirtualMask\r
-  // to that address.\r
-  //\r
-  Status = SetMemoryAttributes (Address, Length, EFI_MEMORY_WP, 0);\r
-  if (!EFI_ERROR (Status)) {\r
-    Status = SetMemoryAttributes (Address | VirtualMask, Length, EFI_MEMORY_UC, VirtualMask);\r
-  }\r
-\r
-  DEBUG ((DEBUG_INFO | DEBUG_LOAD, "CpuConvertPagesToUncachedVirtualAddress()\n    Unmapped 0x%08lx Mapped 0x%08lx 0x%x bytes\n", Address, Address | VirtualMask, Length));\r
-\r
-  return Status;\r
-}\r
-\r
-\r
-EFI_STATUS\r
-EFIAPI\r
-CpuReconvertPages (\r
-  IN  VIRTUAL_UNCACHED_PAGES_PROTOCOL  *This,\r
-  IN  EFI_PHYSICAL_ADDRESS              Address,\r
-  IN  UINTN                             Length,\r
-  IN  EFI_PHYSICAL_ADDRESS              VirtualMask,\r
-  IN  UINT64                            Attributes\r
-  )\r
-{\r
-  EFI_STATUS      Status;\r
-\r
-  DEBUG ((DEBUG_INFO | DEBUG_LOAD, "CpuReconvertPages(%lx, %x, %lx, %lx)\n", Address, Length, VirtualMask, Attributes));\r
-\r
-  //\r
-  // Unmap the aliased Address\r
-  //\r
-  Status = SetMemoryAttributes (Address | VirtualMask, Length, EFI_MEMORY_WP, 0);\r
-  if (!EFI_ERROR (Status)) {\r
-    //\r
-    // Restore atttributes\r
-    //\r
-    Status = SetMemoryAttributes (Address, Length, Attributes, 0);\r
-  }\r
-\r
-  return Status;\r
-}\r
-\r
-\r
-VIRTUAL_UNCACHED_PAGES_PROTOCOL  gVirtualUncachedPages = {\r
-  CpuConvertPagesToUncachedVirtualAddress,\r
-  CpuReconvertPages\r
-};\r