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* [edk2-devel] [PATCH edk2-platforms v8 0/4] get rid of DeviceTree from SbsaQemu
@ 2024-03-20 13:15 Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 1/4] Platform/SbsaQemu: add SbsaQemuHardwareInfoLib Marcin Juszkiewicz
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: Marcin Juszkiewicz @ 2024-03-20 13:15 UTC (permalink / raw)
  To: devel
  Cc: Leif Lindholm, Ard Biesheuvel, Graeme Gregory, Xiong Yining,
	Chen Baozi, Marcin Juszkiewicz

We want to stop parsing DeviceTree to gather hardware information.

Instead we ask TF-A for those details using SMC calls. On real hardware
platform it could be asking on-board Embedded Controller.

Hardware information (CPU, Memory) is now in SbsaQemuHardwareInfoLib
together with new code for handling SMC stuff. There is no DT parsing
anywhere.

TF-A part is merged already (and we have it in edk2-non-osi):
https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/25707

Patch 4 needs work to pass MemInfo as reference.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
---
Changes in v8:
- added HardwareInfoLib library class
- created SbsaQemuHardwareInfoLib as HardwareInfoLib
- dropped SbsaQemu from functions (to keep HardwareInfoLib class generic)
- Link to v7: https://openfw.io/edk2-devel/20240319-no-dt-for-cpu-v7-0-ac0a57a23a8f@linaro.org

Changes in v7:
- dropped CoreCount Pcd - code calls SbsaQemuGetCpuCount() instead
- dropped DT fallbacks - we have up-to-date TF-A in edk2-non-osi
- system shutdowns when there is no cpu or memory information
- SbsaQemuHardwareInfoLib debug calls show function names
- Link to v6: https://openfw.io/edk2-devel/20240306-no-dt-for-cpu-v6-0-acd8727a1b59@linaro.org

Changes in v6 (Marcin Juszkiewicz):
- patch 5 now shutdowns system in case of no CPU information

Changes in v5 (Xiong Yining):
- added missing patch
- Link to v5: https://openfw.io/edk2-devel/20240131132400.3022662-1-xiongyining1480@phytium.com.cn/

Changes in v4 (Xiong Yining):
- patch 6 add the support for getting the hardware information of memory via SMC calls.
- patch 7 add the callback of DeviceTree when SMC calls defined on patch 6 failled.
- replace FdtHelperGetMpidr() with SbsaQemuGetMpidr() on patch 4 to compile successfully.
- Link to v4: https://openfw.io/edk2-devel/20240131100027.2538549-1-xiongyining1480@phytium.com.cn/

Changes in v3:
- added SMC_SIP_CALL_SUCCESS
- on SMC call fail tell that SMC call failed instead of blaming TF-A
- hang when there is no cpu information (TODO: shutdown instead)
- Link to v3: https://openfw.io/edk2-devel/20240124-no-dt-for-cpu-v3-0-5375fcf09037@linaro.org/

---
Marcin Juszkiewicz (3):
      Platform/SbsaQemu: add SbsaQemuHardwareInfoLib
      Platform/SbsaQemu: use SbsaQemuHardwareInfoLib for cpu information
      Platform/SbsaQemu: drop FdtHandlerLib

Xiong Yining (1):
      Platform/SbsaQemu: get the information of memory via SMC calls

 Silicon/Qemu/SbsaQemu/SbsaQemu.dec                  |   2 +
 Platform/Qemu/SbsaQemu/SbsaQemu.dsc                 |   4 +-
 Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf    |   6 +-
 .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf     |   5 +-
 .../SbsaQemuHardwareInfoLib.inf                     |  29 ++++
 .../SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf    |   5 +-
 .../SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h |  19 ++-
 .../Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h |  73 ++++++++++
 Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.c      |  11 +-
 .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c       |  21 +--
 .../SbsaQemuHardwareInfoLib.c                       | 146 ++++++++++++++++++++
 .../Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuMem.c |  54 ++------
 12 files changed, 298 insertions(+), 77 deletions(-)
---
base-commit: 80ee8b861edb6a8b02a100f63bbb435499f8741a
change-id: 20240115-no-dt-for-cpu-2c511393df93

Best regards,
-- 
Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>



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^ permalink raw reply	[flat|nested] 5+ messages in thread

* [edk2-devel] [PATCH edk2-platforms v8 1/4] Platform/SbsaQemu: add SbsaQemuHardwareInfoLib
  2024-03-20 13:15 [edk2-devel] [PATCH edk2-platforms v8 0/4] get rid of DeviceTree from SbsaQemu Marcin Juszkiewicz
@ 2024-03-20 13:15 ` Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 2/4] Platform/SbsaQemu: use SbsaQemuHardwareInfoLib for cpu information Marcin Juszkiewicz
                   ` (2 subsequent siblings)
  3 siblings, 0 replies; 5+ messages in thread
From: Marcin Juszkiewicz @ 2024-03-20 13:15 UTC (permalink / raw)
  To: devel
  Cc: Leif Lindholm, Ard Biesheuvel, Graeme Gregory, Xiong Yining,
	Chen Baozi, Marcin Juszkiewicz

This library provides functions to check for hardware information.
For now it covers CPU ones:

- amount of cpu cores
- MPIDR value for cpu core
- NUMA node id for cpu core

Values are read from TF-A using platform specific SMC calls.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
---
 Silicon/Qemu/SbsaQemu/SbsaQemu.dec                   |  2 +
 Platform/Qemu/SbsaQemu/SbsaQemu.dsc                  |  3 +-
 .../SbsaQemuHardwareInfoLib.inf                      | 29 ++++++
 .../SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h  | 17 +++-
 .../Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h  | 45 +++++++++
 .../SbsaQemuHardwareInfoLib.c                        | 96 ++++++++++++++++++++
 6 files changed, 187 insertions(+), 5 deletions(-)

diff --git a/Silicon/Qemu/SbsaQemu/SbsaQemu.dec b/Silicon/Qemu/SbsaQemu/SbsaQemu.dec
index 913d1d75ef29..427ff8b31aac 100644
--- a/Silicon/Qemu/SbsaQemu/SbsaQemu.dec
+++ b/Silicon/Qemu/SbsaQemu/SbsaQemu.dec
@@ -12,6 +12,8 @@ [Defines]
   PACKAGE_GUID                   = 8db32c5a-2821-43e2-b4ac-bc148e2b0b05
   PACKAGE_VERSION                = 0.1
 
+[LibraryClasses]
+HardwareInfoLib|Include/Library/HardwareInfoLib.h
 ################################################################################
 #
 # Include Section - list of Include Paths that are provided by this package.
diff --git a/Platform/Qemu/SbsaQemu/SbsaQemu.dsc b/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
index 378600050df9..3c3d2449bff4 100644
--- a/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
+++ b/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
@@ -1,6 +1,6 @@
 #
 #  Copyright (c) 2021, NUVIA Inc. All rights reserved.
-#  Copyright (c) 2019, Linaro Limited. All rights reserved.
+#  Copyright (c) 2019-2024, Linaro Ltd. All rights reserved.
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -128,6 +128,7 @@ [LibraryClasses.common]
 
   FdtHelperLib|Silicon/Qemu/SbsaQemu/Library/FdtHelperLib/FdtHelperLib.inf
   OemMiscLib|Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf
+  HardwareInfoLib|Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
 
   # Debug Support
   PeCoffExtraActionLib|ArmPkg/Library/DebugPeCoffExtraActionLib/DebugPeCoffExtraActionLib.inf
diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
new file mode 100644
index 000000000000..2acb2a1e7c76
--- /dev/null
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
@@ -0,0 +1,29 @@
+#/* @file
+#
+#  Copyright (c) 2024, Linaro Ltd. All rights reserved.
+#
+#  SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#*/
+
+[Defines]
+  INF_VERSION                    = 0x0001001c
+  BASE_NAME                      = SbsaQemuHardwareInfoLib
+  FILE_GUID                      = 6454006f-6502-46e2-9be4-4bba8d4b29fb
+  MODULE_TYPE                    = BASE
+  VERSION_STRING                 = 1.0
+  LIBRARY_CLASS                  = HardwareInfoLib
+
+[Sources]
+  SbsaQemuHardwareInfoLib.c
+
+[Packages]
+  ArmPkg/ArmPkg.dec
+  EmbeddedPkg/EmbeddedPkg.dec
+  MdePkg/MdePkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  Silicon/Qemu/SbsaQemu/SbsaQemu.dec
+
+[LibraryClasses]
+  ArmSmcLib
+  ResetSystemLib
diff --git a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
index 7934875e4aba..2317c1f0ae69 100644
--- a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
+++ b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
@@ -1,6 +1,6 @@
 /** @file
 *
-*  Copyright (c) 2023, Linaro Ltd. All rights reserved.<BR>
+*  Copyright (c) 2023-2024, Linaro Ltd. All rights reserved.<BR>
 *
 *  SPDX-License-Identifier: BSD-2-Clause-Patent
 *
@@ -11,8 +11,17 @@
 
 #include <IndustryStandard/ArmStdSmc.h>
 
-#define SIP_SVC_VERSION  SMC_SIP_FUNCTION_ID(1)
-#define SIP_SVC_GET_GIC  SMC_SIP_FUNCTION_ID(100)
-#define SIP_SVC_GET_GIC_ITS  SMC_SIP_FUNCTION_ID(101)
+#define SIP_SVC_VERSION        SMC_SIP_FUNCTION_ID(1)
+#define SIP_SVC_GET_GIC        SMC_SIP_FUNCTION_ID(100)
+#define SIP_SVC_GET_GIC_ITS    SMC_SIP_FUNCTION_ID(101)
+#define SIP_SVC_GET_CPU_COUNT  SMC_SIP_FUNCTION_ID(200)
+#define SIP_SVC_GET_CPU_NODE   SMC_SIP_FUNCTION_ID(201)
+
+/*
+ *  SMCC does not define return codes for SiP functions.
+ *  We use Architecture ones then.
+ */
+
+#define SMC_SIP_CALL_SUCCESS  SMC_ARCH_CALL_SUCCESS
 
 #endif /* SBSA_QEMU_SMC_H_ */
diff --git a/Silicon/Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h b/Silicon/Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h
new file mode 100644
index 000000000000..9c7281f123d2
--- /dev/null
+++ b/Silicon/Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h
@@ -0,0 +1,45 @@
+/** @file
+*
+*  Copyright (c) 2024, Linaro Ltd. All rights reserved.
+*
+*  SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#ifndef HARDWARE_INFO_LIB
+#define HARDWARE_INFO_LIB
+
+/**
+  Get CPU count from information passed by Qemu.
+
+**/
+UINT32
+GetCpuCount (
+  VOID
+  );
+
+/**
+  Get MPIDR for a given cpu from device tree passed by Qemu.
+
+  @param [in]   CpuId    Index of cpu to retrieve MPIDR value for.
+
+  @retval                MPIDR value of CPU at index <CpuId>
+**/
+UINT64
+GetMpidr (
+  IN UINTN  CpuId
+  );
+
+/**
+  Get NUMA node id for a given cpu from device tree passed by Qemu.
+
+  @param [in]   CpuId    Index of cpu to retrieve NUMA node id for.
+
+  @retval                NUMA node id for CPU at index <CpuId>
+**/
+UINT64
+GetCpuNumaNode (
+  IN UINTN  CpuId
+  );
+
+#endif /* HARDWARE_INFO_LIB */
diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
new file mode 100644
index 000000000000..e96328978a55
--- /dev/null
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
@@ -0,0 +1,96 @@
+/** @file
+*
+*  Copyright (c) 2021, NUVIA Inc. All rights reserved.
+*  Copyright (c) 2024, Linaro Ltd. All rights reserved.
+*
+*  SPDX-License-Identifier: BSD-2-Clause-Patent
+*
+**/
+
+#include <Library/ArmSmcLib.h>
+#include <Library/DebugLib.h>
+#include <Library/PcdLib.h>
+#include <Library/ResetSystemLib.h>
+#include <Library/HardwareInfoLib.h>
+#include <IndustryStandard/SbsaQemuSmc.h>
+
+/**
+  Get CPU count from information passed by Qemu.
+
+**/
+UINT32
+GetCpuCount (
+  VOID
+  )
+{
+  UINTN          Arg0;
+  UINTN          SmcResult;
+
+  SmcResult = ArmCallSmc0 (SIP_SVC_GET_CPU_COUNT, &Arg0, NULL, NULL);
+  if (SmcResult != SMC_SIP_CALL_SUCCESS) {
+    DEBUG ((DEBUG_ERROR, "%a: SIP_SVC_GET_CPU_COUNT call failed. We have no cpu information.\n", __FUNCTION__));
+    ResetShutdown ();
+  }
+
+  DEBUG ((DEBUG_INFO, "%a: We have %d cpus.\n", __FUNCTION__, Arg0));
+
+  return Arg0;
+}
+
+/**
+  Get MPIDR for a given cpu from device tree passed by Qemu.
+
+  @param [in]   CpuId    Index of cpu to retrieve MPIDR value for.
+
+  @retval                MPIDR value of CPU at index <CpuId>
+**/
+UINT64
+GetMpidr (
+  IN UINTN  CpuId
+  )
+{
+  UINTN  SmcResult;
+  UINTN  Arg0;
+  UINTN  Arg1;
+
+  Arg0 = CpuId;
+
+  SmcResult = ArmCallSmc0 (SIP_SVC_GET_CPU_NODE, &Arg0, &Arg1, NULL);
+  if (SmcResult != SMC_SIP_CALL_SUCCESS) {
+    DEBUG ((DEBUG_ERROR, "%a: SIP_SVC_GET_CPU_NODE call failed. We have no MPIDR for CPU%d.\n", __FUNCTION__, CpuId));
+    ResetShutdown ();
+  }
+
+  DEBUG ((DEBUG_INFO, "%a: MPIDR for CPU%d: = %d\n", __FUNCTION__, CpuId, Arg1));
+
+  return Arg1;
+}
+
+/**
+  Get NUMA node id for a given cpu from device tree passed by Qemu.
+
+  @param [in]   CpuId    Index of cpu to retrieve NUMA node id for.
+
+  @retval                NUMA node id for CPU at index <CpuId>
+**/
+UINT64
+GetCpuNumaNode (
+  IN UINTN  CpuId
+  )
+{
+  UINTN  SmcResult;
+  UINTN  Arg0;
+  UINTN  Arg1;
+
+  Arg0 = CpuId;
+
+  SmcResult = ArmCallSmc0 (SIP_SVC_GET_CPU_NODE, &Arg0, &Arg1, NULL);
+  if (SmcResult != SMC_SIP_CALL_SUCCESS) {
+    DEBUG ((DEBUG_ERROR, "%a: SIP_SVC_GET_CPU_NODE call failed. Could not find information for CPU%d.\n", __FUNCTION__, CpuId));
+    return 0;
+  }
+
+  DEBUG ((DEBUG_INFO, "%a: NUMA node for CPU%d: = %d\n", __FUNCTION__, CpuId, Arg0));
+
+  return Arg0;
+}

-- 
2.44.0



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^ permalink raw reply related	[flat|nested] 5+ messages in thread

* [edk2-devel] [PATCH edk2-platforms v8 2/4] Platform/SbsaQemu: use SbsaQemuHardwareInfoLib for cpu information
  2024-03-20 13:15 [edk2-devel] [PATCH edk2-platforms v8 0/4] get rid of DeviceTree from SbsaQemu Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 1/4] Platform/SbsaQemu: add SbsaQemuHardwareInfoLib Marcin Juszkiewicz
@ 2024-03-20 13:15 ` Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 3/4] Platform/SbsaQemu: drop FdtHandlerLib Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 4/4] Platform/SbsaQemu: get the information of memory via SMC calls Marcin Juszkiewicz
  3 siblings, 0 replies; 5+ messages in thread
From: Marcin Juszkiewicz @ 2024-03-20 13:15 UTC (permalink / raw)
  To: devel
  Cc: Leif Lindholm, Ard Biesheuvel, Graeme Gregory, Xiong Yining,
	Chen Baozi, Marcin Juszkiewicz

We have SbsaQemuHardwareInfoLib to ask for hardware details. No need to
parse DeviceTree anymore.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
---
 Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf     |  6 ++----
 .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf      |  5 ++---
 .../SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf     |  4 ++--
 Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.c       | 11 +++++-----
 .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c        | 21 +++++++-------------
 5 files changed, 18 insertions(+), 29 deletions(-)

diff --git a/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf b/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf
index a34f54d431d4..f959d8e0e4ee 100644
--- a/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf
+++ b/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf
@@ -3,7 +3,7 @@
 #
 #    Copyright (c) 2021, NUVIA Inc. All rights reserved.
 #    Copyright (c) 2018, Hisilicon Limited. All rights reserved.
-#    Copyright (c) 2018, Linaro Limited. All rights reserved.
+#    Copyright (c) 2018-2024, Linaro Ltd. All rights reserved.
 #
 #    SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -29,8 +29,7 @@ [Packages]
 
 [LibraryClasses]
   BaseMemoryLib
-  FdtLib
-  FdtHelperLib
+  HardwareInfoLib
   IoLib
   PcdLib
 
@@ -40,7 +39,6 @@ [Guids]
 [Pcd]
   gArmTokenSpaceGuid.PcdEmbeddedControllerFirmwareRelease
   gArmTokenSpaceGuid.PcdSystemBiosRelease
-  gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdDeviceTreeBaseAddress
 
   gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdSystemManufacturer
   gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdSystemSerialNumber
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
index 291743b19115..727c8e82d16e 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
@@ -1,7 +1,7 @@
 ## @file
 #  This driver modifies ACPI tables for the Qemu SBSA platform
 #
-#  Copyright (c) 2020, Linaro Ltd. All rights reserved.
+#  Copyright (c) 2020-2024, Linaro Ltd. All rights reserved.
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -35,7 +35,7 @@ [LibraryClasses]
   BaseLib
   DebugLib
   DxeServicesLib
-  FdtHelperLib
+  HardwareInfoLib
   PcdLib
   PrintLib
   UefiDriverEntryPoint
@@ -44,7 +44,6 @@ [LibraryClasses]
 
 [Pcd]
   gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiTableStorageFile
-  gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdCoreCount
   gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdClusterCount
 
   gArmTokenSpaceGuid.PcdGicDistributorBase
diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf
index c067a80cc715..07e6bc4e9b11 100644
--- a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf
@@ -1,6 +1,6 @@
 #/* @file
 #
-#  Copyright (c) 2019, Linaro Limited. All rights reserved.
+#  Copyright (c) 2019-2024, Linaro Limited. All rights reserved.
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -32,9 +32,9 @@ [LibraryClasses]
   ArmLib
   BaseMemoryLib
   DebugLib
-  FdtLib
   MemoryAllocationLib
   PcdLib
+  SbsaQemuHardwareInfoLib
 
 [Pcd]
   gArmTokenSpaceGuid.PcdSystemMemoryBase
diff --git a/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.c b/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.c
index c38f2851904f..854f6f4072d5 100644
--- a/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.c
+++ b/Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.c
@@ -2,7 +2,7 @@
 *  OemMiscLib.c
 *
 *  Copyright (c) 2021, NUVIA Inc. All rights reserved.
-*  Copyright (c) 2020, Linaro Ltd. All rights reserved.
+*  Copyright (c) 2020-2024, Linaro Ltd. All rights reserved.
 *
 *  SPDX-License-Identifier: BSD-2-Clause-Patent
 *
@@ -12,14 +12,13 @@
 #include <Guid/ZeroGuid.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/DebugLib.h>
-#include <Library/FdtHelperLib.h>
 #include <Library/HiiLib.h>
 #include <Library/IoLib.h>
 #include <Library/OemMiscLib.h>
 #include <Library/PcdLib.h>
+#include <Library/HardwareInfoLib.h>
 #include <Library/SerialPortLib.h>
 #include <Library/TimerLib.h>
-#include <libfdt.h>
 
 /** Returns whether the specified processor is present or not.
 
@@ -33,7 +32,7 @@ OemIsProcessorPresent (
   UINTN ProcessorIndex
   )
 {
-  if (ProcessorIndex < FdtHelperCountCpus ()) {
+  if (ProcessorIndex < GetCpuCount ()) {
     return TRUE;
   }
 
@@ -76,7 +75,7 @@ OemGetProcessorInformation (
 {
   UINT16 ProcessorCount;
 
-  ProcessorCount = FdtHelperCountCpus ();
+  ProcessorCount = GetCpuCount ();
 
   if (ProcessorIndex < ProcessorCount) {
     ProcessorStatus->Bits.CpuStatus       = 1; // CPU enabled
@@ -121,7 +120,7 @@ OemGetMaxProcessors (
   VOID
   )
 {
-  return FdtHelperCountCpus ();
+  return GetCpuCount ();
 }
 
 /** Gets information about the cache at the specified cache level.
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
index 9fb17151d7b8..4ebe2a445344 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
@@ -1,7 +1,7 @@
 /** @file
 *  This file is an ACPI driver for the Qemu SBSA platform.
 *
-*  Copyright (c) 2020, Linaro Ltd. All rights reserved.
+*  Copyright (c) 2020-2024, Linaro Ltd. All rights reserved.
 *
 *  SPDX-License-Identifier: BSD-2-Clause-Patent
 *
@@ -15,10 +15,10 @@
 #include <Library/ArmLib.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/DebugLib.h>
-#include <Library/FdtHelperLib.h>
 #include <Library/MemoryAllocationLib.h>
 #include <Library/PcdLib.h>
 #include <Library/PrintLib.h>
+#include <Library/HardwareInfoLib.h>
 #include <Library/UefiBootServicesTableLib.h>
 #include <Library/UefiDriverEntryPoint.h>
 #include <Library/UefiLib.h>
@@ -255,8 +255,7 @@ AddMadtTable (
  // Initialize GIC Redistributor Structure
   EFI_ACPI_6_0_GICR_STRUCTURE Gicr = SBSAQEMU_MADT_GICR_INIT();
 
-  // Get CoreCount which was determined eariler after parsing device tree
-  NumCores = PcdGet32 (PcdCoreCount);
+  NumCores = GetCpuCount ();
 
   // Calculate the new table size based on the number of cores
   TableSize = sizeof (EFI_ACPI_6_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER) +
@@ -291,13 +290,13 @@ AddMadtTable (
   New += sizeof (EFI_ACPI_6_0_MULTIPLE_APIC_DESCRIPTION_TABLE_HEADER);
 
   // Add new GICC structures for the Cores
-  for (CoreIndex = 0; CoreIndex < PcdGet32 (PcdCoreCount); CoreIndex++) {
+  for (CoreIndex = 0; CoreIndex < NumCores; CoreIndex++) {
     EFI_ACPI_6_0_GIC_STRUCTURE *GiccPtr;
 
     CopyMem (New, &Gicc, sizeof (EFI_ACPI_6_0_GIC_STRUCTURE));
     GiccPtr = (EFI_ACPI_6_0_GIC_STRUCTURE *) New;
     GiccPtr->AcpiProcessorUid = CoreIndex;
-    GiccPtr->MPIDR = FdtHelperGetMpidr (CoreIndex);
+    GiccPtr->MPIDR = GetMpidr (CoreIndex);
     New += sizeof (EFI_ACPI_6_0_GIC_STRUCTURE);
   }
 
@@ -396,7 +395,7 @@ AddSsdtTable (
   UINT32                CpuId;
   UINT32                Offset;
   UINT8                 ScopeOpName[] =  SBSAQEMU_ACPI_SCOPE_NAME;
-  UINT32                NumCores = PcdGet32 (PcdCoreCount);
+  UINT32                NumCores = GetCpuCount ();
 
   EFI_ACPI_DESCRIPTION_HEADER Header =
     SBSAQEMU_ACPI_HEADER (
@@ -497,7 +496,7 @@ AddPpttTable (
   EFI_PHYSICAL_ADDRESS  PageAddress;
   UINT8                 *New;
   UINT32                CpuId;
-  UINT32                NumCores = PcdGet32 (PcdCoreCount);
+  UINT32                NumCores = GetCpuCount ();
 
   EFI_ACPI_6_3_PPTT_STRUCTURE_CACHE L1DCache = SBSAQEMU_ACPI_PPTT_L1_D_CACHE_STRUCT;
   EFI_ACPI_6_3_PPTT_STRUCTURE_CACHE L1ICache = SBSAQEMU_ACPI_PPTT_L1_I_CACHE_STRUCT;
@@ -758,12 +757,6 @@ InitializeSbsaQemuAcpiDxe (
 {
   EFI_STATUS                     Status;
   EFI_ACPI_TABLE_PROTOCOL        *AcpiTable;
-  UINT32                         NumCores;
-
-  // Parse the device tree and get the number of CPUs
-  NumCores = FdtHelperCountCpus ();
-  Status = PcdSet32S (PcdCoreCount, NumCores);
-  ASSERT_RETURN_ERROR (Status);
 
   // Check if ACPI Table Protocol has been installed
   Status = gBS->LocateProtocol (

-- 
2.44.0



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* [edk2-devel] [PATCH edk2-platforms v8 3/4] Platform/SbsaQemu: drop FdtHandlerLib
  2024-03-20 13:15 [edk2-devel] [PATCH edk2-platforms v8 0/4] get rid of DeviceTree from SbsaQemu Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 1/4] Platform/SbsaQemu: add SbsaQemuHardwareInfoLib Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 2/4] Platform/SbsaQemu: use SbsaQemuHardwareInfoLib for cpu information Marcin Juszkiewicz
@ 2024-03-20 13:15 ` Marcin Juszkiewicz
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 4/4] Platform/SbsaQemu: get the information of memory via SMC calls Marcin Juszkiewicz
  3 siblings, 0 replies; 5+ messages in thread
From: Marcin Juszkiewicz @ 2024-03-20 13:15 UTC (permalink / raw)
  To: devel
  Cc: Leif Lindholm, Ard Biesheuvel, Graeme Gregory, Xiong Yining,
	Chen Baozi, Marcin Juszkiewicz

There is no need for EDK2 to know that there is DeviceTree around.
All hardware information is read using functions from
SbsaQemuHardwareInfoLib library.

Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
---
 Platform/Qemu/SbsaQemu/SbsaQemu.dsc | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Platform/Qemu/SbsaQemu/SbsaQemu.dsc b/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
index 3c3d2449bff4..5ed6b684c246 100644
--- a/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
+++ b/Platform/Qemu/SbsaQemu/SbsaQemu.dsc
@@ -126,7 +126,6 @@ [LibraryClasses.common]
   # ARM PL011 UART Driver
   PL011UartLib|ArmPlatformPkg/Library/PL011UartLib/PL011UartLib.inf
 
-  FdtHelperLib|Silicon/Qemu/SbsaQemu/Library/FdtHelperLib/FdtHelperLib.inf
   OemMiscLib|Platform/Qemu/SbsaQemu/OemMiscLib/OemMiscLib.inf
   HardwareInfoLib|Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.inf
 

-- 
2.44.0



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* [edk2-devel] [PATCH edk2-platforms v8 4/4] Platform/SbsaQemu: get the information of memory via SMC calls
  2024-03-20 13:15 [edk2-devel] [PATCH edk2-platforms v8 0/4] get rid of DeviceTree from SbsaQemu Marcin Juszkiewicz
                   ` (2 preceding siblings ...)
  2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 3/4] Platform/SbsaQemu: drop FdtHandlerLib Marcin Juszkiewicz
@ 2024-03-20 13:15 ` Marcin Juszkiewicz
  3 siblings, 0 replies; 5+ messages in thread
From: Marcin Juszkiewicz @ 2024-03-20 13:15 UTC (permalink / raw)
  To: devel
  Cc: Leif Lindholm, Ard Biesheuvel, Graeme Gregory, Xiong Yining,
	Chen Baozi, Marcin Juszkiewicz

From: Xiong Yining <xiongyining1480@phytium.com.cn>

Provide functions to check for memory information:

- amount of memory nodes
- memory address
- NUMA node id for memory

Values are read from TF-A using platform specific SMC calls.

Signed-off-by: Xiong Yining <xiongyining1480@phytium.com.cn>
Signed-off-by: Chen Baozi <chenbaozi@phytium.com.cn>
Signed-off-by: Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org>
---
 .../SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf     |  3 +-
 .../SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h  |  2 +
 .../Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h  | 28 ++++++++++
 .../SbsaQemuHardwareInfoLib.c                        | 50 ++++++++++++++++++
 .../Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuMem.c  | 54 +++++---------------
 5 files changed, 94 insertions(+), 43 deletions(-)

diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf
index 07e6bc4e9b11..384cbb349200 100644
--- a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuLib.inf
@@ -32,14 +32,13 @@ [LibraryClasses]
   ArmLib
   BaseMemoryLib
   DebugLib
+  HardwareInfoLib
   MemoryAllocationLib
   PcdLib
-  SbsaQemuHardwareInfoLib
 
 [Pcd]
   gArmTokenSpaceGuid.PcdSystemMemoryBase
   gArmTokenSpaceGuid.PcdSystemMemorySize
-  gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdDeviceTreeBaseAddress
 
 [FixedPcd]
   gArmTokenSpaceGuid.PcdFdBaseAddress
diff --git a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
index 2317c1f0ae69..e3092007d27d 100644
--- a/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
+++ b/Silicon/Qemu/SbsaQemu/Include/IndustryStandard/SbsaQemuSmc.h
@@ -16,6 +16,8 @@
 #define SIP_SVC_GET_GIC_ITS    SMC_SIP_FUNCTION_ID(101)
 #define SIP_SVC_GET_CPU_COUNT  SMC_SIP_FUNCTION_ID(200)
 #define SIP_SVC_GET_CPU_NODE   SMC_SIP_FUNCTION_ID(201)
+#define SIP_SVC_GET_MEMORY_NODE_COUNT SMC_SIP_FUNCTION_ID(300)
+#define SIP_SVC_GET_MEMORY_NODE SMC_SIP_FUNCTION_ID(301)
 
 /*
  *  SMCC does not define return codes for SiP functions.
diff --git a/Silicon/Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h b/Silicon/Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h
index 9c7281f123d2..c7d397c590a8 100644
--- a/Silicon/Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h
+++ b/Silicon/Qemu/SbsaQemu/Include/Library/HardwareInfoLib.h
@@ -9,6 +9,12 @@
 #ifndef HARDWARE_INFO_LIB
 #define HARDWARE_INFO_LIB
 
+typedef struct{
+  UINT32  NodeId;
+  UINT64  AddressBase;
+  UINT64  AddressSize;
+} MemoryInfo;
+
 /**
   Get CPU count from information passed by Qemu.
 
@@ -42,4 +48,26 @@ GetCpuNumaNode (
   IN UINTN  CpuId
   );
 
+/**
+  Get the number of memory node from device tree passed by Qemu.
+
+  @retval                   the number of memory nodes.
+**/
+UINT32
+GetMemNodeCount (
+  VOID
+  );
+
+/**
+  Get memory infomation(node-id, addressbase, addresssize) for a given memory node from device tree passed by Qemu.
+
+  @param [in]   MemoryId    Index of memory to retrieve memory information.
+
+  @retval                   memory infomation for given memory node.
+**/
+MemoryInfo
+GetMemInfo (
+  IN UINTN   MemoryId
+  );
+
 #endif /* HARDWARE_INFO_LIB */
diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
index e96328978a55..4f49ae7e1862 100644
--- a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuHardwareInfoLib/SbsaQemuHardwareInfoLib.c
@@ -94,3 +94,53 @@ GetCpuNumaNode (
 
   return Arg0;
 }
+
+UINT32
+GetMemNodeCount (
+  VOID
+  )
+{
+  UINTN            SmcResult;
+  UINTN            Arg0;
+
+  SmcResult = ArmCallSmc0 (SIP_SVC_GET_MEMORY_NODE_COUNT, &Arg0, NULL, NULL);
+  if (SmcResult != SMC_SIP_CALL_SUCCESS) {
+    DEBUG ((DEBUG_ERROR, "%a: SIP_SVC_GET_MEMORY_NODE_COUNT call failed. We have no memory information.\n", __FUNCTION__));
+    ResetShutdown ();
+  }
+
+  DEBUG (( DEBUG_INFO, "%a: The number of the memory nodes is %ld\n", __FUNCTION__, Arg0));
+  return (UINT32)Arg0;
+}
+
+MemoryInfo
+GetMemInfo (
+  IN UINTN   MemoryId
+  )
+{
+  UINTN           SmcResult;
+  UINTN           Arg0;
+  UINTN           Arg1;
+  UINTN           Arg2;
+  MemoryInfo      MemInfo;
+
+  Arg0 = MemoryId;
+
+  SmcResult = ArmCallSmc1 (SIP_SVC_GET_MEMORY_NODE, &Arg0, &Arg1, &Arg2);
+  if (SmcResult != SMC_SIP_CALL_SUCCESS) {
+    DEBUG ((DEBUG_ERROR, "%a: SIP_SVC_GET_MEMORY_NODE call failed. We have no memory information.\n", __FUNCTION__));
+    ResetShutdown ();
+  } else {
+    MemInfo.NodeId = Arg0;
+    MemInfo.AddressBase = Arg1;
+    MemInfo.AddressSize = Arg2;
+  }
+
+  DEBUG(( DEBUG_INFO, "%a: NUMA node for System RAM:%d = 0x%lx - 0x%lx\n",
+      __FUNCTION__,
+      MemInfo.NodeId,
+      MemInfo.AddressBase,
+      MemInfo.AddressBase + MemInfo.AddressSize -1 ));
+
+  return MemInfo;
+}
diff --git a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuMem.c b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuMem.c
index 8c2eb0b6a028..264ca9acb203 100644
--- a/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuMem.c
+++ b/Silicon/Qemu/SbsaQemu/Library/SbsaQemuLib/SbsaQemuMem.c
@@ -12,7 +12,7 @@
 #include <Library/DebugLib.h>
 #include <Library/MemoryAllocationLib.h>
 #include <Library/PcdLib.h>
-#include <libfdt.h>
+#include <Library/HardwareInfoLib.h>
 
 // Number of Virtual Memory Map Descriptors
 #define MAX_VIRTUAL_MEMORY_MAP_DESCRIPTORS          4
@@ -23,53 +23,25 @@ SbsaQemuLibConstructor (
   VOID
   )
 {
-  VOID          *DeviceTreeBase;
-  INT32         Node, Prev;
   UINT64        NewBase, CurBase;
   UINT64        NewSize, CurSize;
-  CONST CHAR8   *Type;
-  INT32         Len;
-  CONST UINT64  *RegProp;
+  UINT32        NumMemNodes;
+  UINT32        Index;
+  MemoryInfo    MemInfo;
   RETURN_STATUS PcdStatus;
 
   NewBase = 0;
   NewSize = 0;
 
-  DeviceTreeBase = (VOID *)(UINTN)PcdGet64 (PcdDeviceTreeBaseAddress);
-  ASSERT (DeviceTreeBase != NULL);
-
-  // Make sure we have a valid device tree blob
-  ASSERT (fdt_check_header (DeviceTreeBase) == 0);
-
-  // Look for the lowest memory node
-  for (Prev = 0;; Prev = Node) {
-    Node = fdt_next_node (DeviceTreeBase, Prev, NULL);
-    if (Node < 0) {
-      break;
-    }
-
-    // Check for memory node
-    Type = fdt_getprop (DeviceTreeBase, Node, "device_type", &Len);
-    if (Type && AsciiStrnCmp (Type, "memory", Len) == 0) {
-      // Get the 'reg' property of this node. For now, we will assume
-      // two 8 byte quantities for base and size, respectively.
-      RegProp = fdt_getprop (DeviceTreeBase, Node, "reg", &Len);
-      if (RegProp != 0 && Len == (2 * sizeof (UINT64))) {
-
-        CurBase = fdt64_to_cpu (ReadUnaligned64 (RegProp));
-        CurSize = fdt64_to_cpu (ReadUnaligned64 (RegProp + 1));
-
-        DEBUG ((DEBUG_INFO, "%a: System RAM @ 0x%lx - 0x%lx\n",
-          __FUNCTION__, CurBase, CurBase + CurSize - 1));
-
-        if (NewBase > CurBase || NewBase == 0) {
-          NewBase = CurBase;
-          NewSize = CurSize;
-        }
-      } else {
-        DEBUG ((DEBUG_ERROR, "%a: Failed to parse FDT memory node\n",
-          __FUNCTION__));
-      }
+  NumMemNodes = GetMemNodeCount();
+  for(Index = 0; Index < NumMemNodes; Index++){
+    MemInfo = GetMemInfo(Index);
+    CurBase = MemInfo.AddressBase;
+    CurSize = MemInfo.AddressSize;
+
+    if (NewBase > CurBase || NewBase == 0) {
+      NewBase = CurBase;
+      NewSize = CurSize;
     }
   }
 

-- 
2.44.0



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^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2024-03-20 13:16 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-03-20 13:15 [edk2-devel] [PATCH edk2-platforms v8 0/4] get rid of DeviceTree from SbsaQemu Marcin Juszkiewicz
2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 1/4] Platform/SbsaQemu: add SbsaQemuHardwareInfoLib Marcin Juszkiewicz
2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 2/4] Platform/SbsaQemu: use SbsaQemuHardwareInfoLib for cpu information Marcin Juszkiewicz
2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 3/4] Platform/SbsaQemu: drop FdtHandlerLib Marcin Juszkiewicz
2024-03-20 13:15 ` [edk2-devel] [PATCH edk2-platforms v8 4/4] Platform/SbsaQemu: get the information of memory via SMC calls Marcin Juszkiewicz

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