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arm-trusted-firmware/include/plat/arm/common/arm_sip_svc.h

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Introduce ARM SiP service This patch adds ARM SiP service for use by ARM standard platforms. This service is added to support the SMC interface for the Performance measurement framework(PMF). Change-Id: I26f5712f9ab54f5f721dd4781e35a16f40aacc44 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-09-19 11:21:03 +01:00
/*
Add SiP service to configure Arm Ethos-N NPU By default the Arm Ethos-N NPU will boot up in secure mode. In this mode the non-secure world cannot access the registers needed to use the NPU. To still allow the non-secure world to use the NPU, a SiP service has been added that can delegate non-secure access to the registers needed to use it. Only the HW_CONFIG for the Arm Juno platform has been updated to include the device tree for the NPU and the platform currently only loads the HW_CONFIG in AArch64 builds. Signed-off-by: Mikael Olsson <mikael.olsson@arm.com> Change-Id: I65dfd864042ed43faae0a259dcf319cbadb5f3d2
2021-02-12 16:30:22 +00:00
* Copyright (c) 2016-2019,2021, ARM Limited and Contributors. All rights reserved.
Introduce ARM SiP service This patch adds ARM SiP service for use by ARM standard platforms. This service is added to support the SMC interface for the Performance measurement framework(PMF). Change-Id: I26f5712f9ab54f5f721dd4781e35a16f40aacc44 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-09-19 11:21:03 +01:00
*
Use SPDX license identifiers To make software license auditing simpler, use SPDX[0] license identifiers instead of duplicating the license text in every file. NOTE: Files that have been imported by FreeBSD have not been modified. [0]: https://spdx.org/ Change-Id: I80a00e1f641b8cc075ca5a95b10607ed9ed8761a Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2017-05-03 09:38:09 +01:00
* SPDX-License-Identifier: BSD-3-Clause
Introduce ARM SiP service This patch adds ARM SiP service for use by ARM standard platforms. This service is added to support the SMC interface for the Performance measurement framework(PMF). Change-Id: I26f5712f9ab54f5f721dd4781e35a16f40aacc44 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-09-19 11:21:03 +01:00
*/
plat/arm: Fix MISRA defects in SiP SVC handler No functional changes. Change-Id: I9b9f8d3dfde08d57706ad5450de6ff858a55ac01 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-10-25 16:53:04 +01:00
#ifndef ARM_SIP_SVC_H
#define ARM_SIP_SVC_H
Sanitise includes across codebase Enforce full include path for includes. Deprecate old paths. The following folders inside include/lib have been left unchanged: - include/lib/cpus/${ARCH} - include/lib/el3_runtime/${ARCH} The reason for this change is that having a global namespace for includes isn't a good idea. It defeats one of the advantages of having folders and it introduces problems that are sometimes subtle (because you may not know the header you are actually including if there are two of them). For example, this patch had to be created because two headers were called the same way: e0ea0928d5b7 ("Fix gpio includes of mt8173 platform to avoid collision."). More recently, this patch has had similar problems: 46f9b2c3a282 ("drivers: add tzc380 support"). This problem was introduced in commit 4ecca33988b9 ("Move include and source files to logical locations"). At that time, there weren't too many headers so it wasn't a real issue. However, time has shown that this creates problems. Platforms that want to preserve the way they include headers may add the removed paths to PLAT_INCLUDES, but this is discouraged. Change-Id: I39dc53ed98f9e297a5966e723d1936d6ccf2fc8f Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-12-14 00:18:21 +00:00
#include <lib/utils_def.h>
Introduce ARM SiP service This patch adds ARM SiP service for use by ARM standard platforms. This service is added to support the SMC interface for the Performance measurement framework(PMF). Change-Id: I26f5712f9ab54f5f721dd4781e35a16f40aacc44 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-09-19 11:21:03 +01:00
/* SMC function IDs for SiP Service queries */
plat/arm: Fix MISRA defects in SiP SVC handler No functional changes. Change-Id: I9b9f8d3dfde08d57706ad5450de6ff858a55ac01 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-10-25 16:53:04 +01:00
#define ARM_SIP_SVC_CALL_COUNT U(0x8200ff00)
#define ARM_SIP_SVC_UID U(0x8200ff01)
/* U(0x8200ff02) is reserved */
#define ARM_SIP_SVC_VERSION U(0x8200ff03)
Introduce ARM SiP service This patch adds ARM SiP service for use by ARM standard platforms. This service is added to support the SMC interface for the Performance measurement framework(PMF). Change-Id: I26f5712f9ab54f5f721dd4781e35a16f40aacc44 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-09-19 11:21:03 +01:00
debugfs: add SMC channel Provide an SMC interface to the 9p filesystem. This permits accessing firmware drivers through a common interface, using standardized read/write/control operations. Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com> Signed-off-by: Olivier Deprez <olivier.deprez@arm.com> Change-Id: I9314662314bb060f6bc02714476574da158b2a7d
2019-07-12 13:47:03 +01:00
/* PMF_SMC_GET_TIMESTAMP_32 0x82000010 */
/* PMF_SMC_GET_TIMESTAMP_64 0xC2000010 */
Introduce ARM SiP service to switch execution state In AArch64, privileged exception levels control the execution state (a.k.a. register width) of the immediate lower Exception Level; i.e. whether the lower exception level executes in AArch64 or AArch32 state. For an exception level to have its execution state changed at run time, it must request the change by raising a synchronous exception to the higher exception level. This patch implements and adds such a provision to the ARM SiP service, by which an immediate lower exception level can request to switch its execution state. The execution state is switched if the request is: - raised from non-secure world; - raised on the primary CPU, before any secondaries are brought online with CPU_ON PSCI call; - raised from an exception level immediately below EL3: EL2, if implemented; otherwise NS EL1. If successful, the SMC doesn't return to the caller, but to the entry point supplied with the call. Otherwise, the caller will observe the SMC returning with STATE_SW_E_DENIED code. If ARM Trusted Firmware is built for AArch32, the feature is not supported, and the call will always fail. For the ARM SiP service: - Add SMC function IDs for both AArch32 and AArch64; - Increment the SiP service minor version to 2; - Adjust the number of supported SiP service calls. Add documentation for ARM SiP service. Fixes ARM-software/tf-issues#436 Change-Id: I4347f2d6232e69fbfbe333b340fcd0caed0a4cea Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-02-16 14:55:15 +00:00
/* Function ID for requesting state switch of lower EL */
plat/arm: Fix MISRA defects in SiP SVC handler No functional changes. Change-Id: I9b9f8d3dfde08d57706ad5450de6ff858a55ac01 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-10-25 16:53:04 +01:00
#define ARM_SIP_SVC_EXE_STATE_SWITCH U(0x82000020)
Introduce ARM SiP service to switch execution state In AArch64, privileged exception levels control the execution state (a.k.a. register width) of the immediate lower Exception Level; i.e. whether the lower exception level executes in AArch64 or AArch32 state. For an exception level to have its execution state changed at run time, it must request the change by raising a synchronous exception to the higher exception level. This patch implements and adds such a provision to the ARM SiP service, by which an immediate lower exception level can request to switch its execution state. The execution state is switched if the request is: - raised from non-secure world; - raised on the primary CPU, before any secondaries are brought online with CPU_ON PSCI call; - raised from an exception level immediately below EL3: EL2, if implemented; otherwise NS EL1. If successful, the SMC doesn't return to the caller, but to the entry point supplied with the call. Otherwise, the caller will observe the SMC returning with STATE_SW_E_DENIED code. If ARM Trusted Firmware is built for AArch32, the feature is not supported, and the call will always fail. For the ARM SiP service: - Add SMC function IDs for both AArch32 and AArch64; - Increment the SiP service minor version to 2; - Adjust the number of supported SiP service calls. Add documentation for ARM SiP service. Fixes ARM-software/tf-issues#436 Change-Id: I4347f2d6232e69fbfbe333b340fcd0caed0a4cea Signed-off-by: Jeenu Viswambharan <jeenu.viswambharan@arm.com>
2017-02-16 14:55:15 +00:00
debugfs: add SMC channel Provide an SMC interface to the 9p filesystem. This permits accessing firmware drivers through a common interface, using standardized read/write/control operations. Signed-off-by: Ambroise Vincent <ambroise.vincent@arm.com> Signed-off-by: Olivier Deprez <olivier.deprez@arm.com> Change-Id: I9314662314bb060f6bc02714476574da158b2a7d
2019-07-12 13:47:03 +01:00
/* DEBUGFS_SMC_32 0x82000030U */
/* DEBUGFS_SMC_64 0xC2000030U */
Add SiP service to configure Arm Ethos-N NPU By default the Arm Ethos-N NPU will boot up in secure mode. In this mode the non-secure world cannot access the registers needed to use the NPU. To still allow the non-secure world to use the NPU, a SiP service has been added that can delegate non-secure access to the registers needed to use it. Only the HW_CONFIG for the Arm Juno platform has been updated to include the device tree for the NPU and the platform currently only loads the HW_CONFIG in AArch64 builds. Signed-off-by: Mikael Olsson <mikael.olsson@arm.com> Change-Id: I65dfd864042ed43faae0a259dcf319cbadb5f3d2
2021-02-12 16:30:22 +00:00
/*
* Arm Ethos-N NPU SiP SMC function IDs
* 0xC2000050-0xC200005F
* 0x82000050-0x8200005F
*/
Introduce ARM SiP service This patch adds ARM SiP service for use by ARM standard platforms. This service is added to support the SMC interface for the Performance measurement framework(PMF). Change-Id: I26f5712f9ab54f5f721dd4781e35a16f40aacc44 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-09-19 11:21:03 +01:00
/* ARM SiP Service Calls version numbers */
plat/arm: Fix MISRA defects in SiP SVC handler No functional changes. Change-Id: I9b9f8d3dfde08d57706ad5450de6ff858a55ac01 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-10-25 16:53:04 +01:00
#define ARM_SIP_SVC_VERSION_MAJOR U(0x0)
#define ARM_SIP_SVC_VERSION_MINOR U(0x2)
Introduce ARM SiP service This patch adds ARM SiP service for use by ARM standard platforms. This service is added to support the SMC interface for the Performance measurement framework(PMF). Change-Id: I26f5712f9ab54f5f721dd4781e35a16f40aacc44 Signed-off-by: dp-arm <dimitris.papastamos@arm.com>
2016-09-19 11:21:03 +01:00
plat/arm: Fix MISRA defects in SiP SVC handler No functional changes. Change-Id: I9b9f8d3dfde08d57706ad5450de6ff858a55ac01 Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
2018-10-25 16:53:04 +01:00
#endif /* ARM_SIP_SVC_H */