From: "Rebecca Cran" <rebecca@nuviainc.com>
To: devel@edk2.groups.io, Ard Biesheuvel <ardb+tianocore@kernel.org>,
Gerd Hoffmann <kraxel@redhat.com>,
Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@arm.com>,
Leif Lindholm <leif@nuviainc.com>, nd <nd@arm.com>,
Sami Mujawar <sami.mujawar@arm.com>
Cc: Rebecca Cran <rebecca@nuviainc.com>
Subject: [PATCH v3 2/2] ArmPkg: Update SMC calls to use the new ArmCallSmc0/1/2/3 functions
Date: Mon, 13 Dec 2021 11:30:56 -0700 [thread overview]
Message-ID: <20211213183056.31444-3-rebecca@nuviainc.com> (raw)
In-Reply-To: <20211213183056.31444-1-rebecca@nuviainc.com>
New SMC helper functions have been added to reduce the amount of
template code. Update ArmSmcPsciResetSystemLib and
Smbios/ProcessorSubClassDxe to use them.
Signed-off-by: Rebecca Cran <rebecca@nuviainc.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
---
ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c | 10 +----
ArmPkg/Universal/Smbios/ProcessorSubClassDxe/SmbiosProcessorArmCommon.c | 40 ++++++++------------
2 files changed, 18 insertions(+), 32 deletions(-)
diff --git a/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c b/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c
index 6688fca37a8b..af6738459e43 100644
--- a/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c
+++ b/ArmPkg/Library/ArmSmcPsciResetSystemLib/ArmSmcPsciResetSystemLib.c
@@ -31,11 +31,8 @@ ResetCold (
VOID
)
{
- ARM_SMC_ARGS ArmSmcArgs;
-
// Send a PSCI 0.2 SYSTEM_RESET command
- ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET;
- ArmCallSmc (&ArmSmcArgs);
+ ArmCallSmc0 (ARM_SMC_ID_PSCI_SYSTEM_RESET, NULL, NULL, NULL);
}
/**
@@ -66,11 +63,8 @@ ResetShutdown (
VOID
)
{
- ARM_SMC_ARGS ArmSmcArgs;
-
// Send a PSCI 0.2 SYSTEM_OFF command
- ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;
- ArmCallSmc (&ArmSmcArgs);
+ ArmCallSmc0 (ARM_SMC_ID_PSCI_SYSTEM_OFF, NULL, NULL, NULL);
}
/**
diff --git a/ArmPkg/Universal/Smbios/ProcessorSubClassDxe/SmbiosProcessorArmCommon.c b/ArmPkg/Universal/Smbios/ProcessorSubClassDxe/SmbiosProcessorArmCommon.c
index 7a8c3ca56784..e0010a40e489 100644
--- a/ArmPkg/Universal/Smbios/ProcessorSubClassDxe/SmbiosProcessorArmCommon.c
+++ b/ArmPkg/Universal/Smbios/ProcessorSubClassDxe/SmbiosProcessorArmCommon.c
@@ -88,22 +88,18 @@ HasSmcArm64SocId (
VOID
)
{
- ARM_SMC_ARGS Args;
- INT32 SmcCallStatus;
- BOOLEAN Arm64SocIdSupported;
+ INT32 SmcCallStatus;
+ BOOLEAN Arm64SocIdSupported;
+ UINTN SmcParam;
Arm64SocIdSupported = FALSE;
- Args.Arg0 = SMCCC_VERSION;
- ArmCallSmc (&Args);
- SmcCallStatus = (INT32)Args.Arg0;
+ SmcCallStatus = ArmCallSmc0 (SMCCC_VERSION, NULL, NULL, NULL);
if ((SmcCallStatus < 0) || ((SmcCallStatus >> 16) >= 1)) {
- Args.Arg0 = SMCCC_ARCH_FEATURES;
- Args.Arg1 = SMCCC_ARCH_SOC_ID;
- ArmCallSmc (&Args);
-
- if (Args.Arg0 >= 0) {
+ SmcParam = SMCCC_ARCH_SOC_ID;
+ SmcCallStatus = ArmCallSmc1 (SMCCC_ARCH_FEATURES, &SmcParam, NULL, NULL);
+ if (SmcCallStatus >= 0) {
Arm64SocIdSupported = TRUE;
}
}
@@ -125,30 +121,26 @@ SmbiosGetSmcArm64SocId (
OUT INT32 *SocRevision
)
{
- ARM_SMC_ARGS Args;
- INT32 SmcCallStatus;
- EFI_STATUS Status;
+ INT32 SmcCallStatus;
+ EFI_STATUS Status;
+ UINTN SmcParam;
Status = EFI_SUCCESS;
- Args.Arg0 = SMCCC_ARCH_SOC_ID;
- Args.Arg1 = 0;
- ArmCallSmc (&Args);
- SmcCallStatus = (INT32)Args.Arg0;
+ SmcParam = 0;
+ SmcCallStatus = ArmCallSmc1 (SMCCC_ARCH_SOC_ID, &SmcParam, NULL, NULL);
if (SmcCallStatus >= 0) {
- *Jep106Code = (INT32)Args.Arg0;
+ *Jep106Code = (INT32)SmcParam;
} else {
Status = EFI_UNSUPPORTED;
}
- Args.Arg0 = SMCCC_ARCH_SOC_ID;
- Args.Arg1 = 1;
- ArmCallSmc (&Args);
- SmcCallStatus = (INT32)Args.Arg0;
+ SmcParam = 1;
+ SmcCallStatus = ArmCallSmc1 (SMCCC_ARCH_SOC_ID, &SmcParam, NULL, NULL);
if (SmcCallStatus >= 0) {
- *SocRevision = (INT32)Args.Arg0;
+ *SocRevision = (INT32)SmcParam;
} else {
Status = EFI_UNSUPPORTED;
}
--
2.31.1
next prev parent reply other threads:[~2021-12-13 18:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-13 18:30 [PATCH v3 0/2] ArmPkg: Add SMC helper functions Rebecca Cran
2021-12-13 18:30 ` [PATCH v3 1/2] " Rebecca Cran
2021-12-13 18:30 ` Rebecca Cran [this message]
2021-12-14 11:31 ` [PATCH v3 0/2] " Ard Biesheuvel
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