From: "Wu, Jiaxin" <jiaxin.wu@intel.com>
To: devel@edk2.groups.io
Cc: Laszlo Ersek <lersek@redhat.com>, Eric Dong <eric.dong@intel.com>,
Ray Ni <ray.ni@intel.com>, Zeng Star <star.zeng@intel.com>,
Gerd Hoffmann <kraxel@redhat.com>,
Rahul Kumar <rahul1.kumar@intel.com>
Subject: [edk2-devel] [PATCH v4 7/8] UefiCpuPkg/PiSmmCpuDxeSmm: Simplify RunningApCount decrement
Date: Fri, 15 Dec 2023 17:55:14 +0800 [thread overview]
Message-ID: <20231215095515.9484-8-jiaxin.wu@intel.com> (raw)
In-Reply-To: <20231215095515.9484-1-jiaxin.wu@intel.com>
To decrease the count of RunningApCount, InterlockedDecrement is
enough to achieve that.
This patch is to simplify RunningApCount decrement.
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Zeng Star <star.zeng@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
---
UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
index 54542262a2..9b477b6695 100644
--- a/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
+++ b/UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
@@ -1450,11 +1450,11 @@ InternalSmmStartupAllAPs (
//
// Decrease the count to mark this processor(AP or BSP) as finished.
//
if (ProcToken != NULL) {
- WaitForSemaphore (&ProcToken->RunningApCount);
+ InterlockedDecrement (&ProcToken->RunningApCount);
}
}
}
ReleaseAllAPs ();
--
2.16.2.windows.1
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next prev parent reply other threads:[~2023-12-15 9:55 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-15 9:55 [edk2-devel] [PATCH v4 0/8] Refine SMM CPU Sync flow and abstract SmmCpuSyncLib Wu, Jiaxin
2023-12-15 9:55 ` [edk2-devel] [PATCH v4 1/8] UefiCpuPkg/PiSmmCpuDxeSmm: Optimize Semaphore Sync between BSP and AP Wu, Jiaxin
2023-12-19 3:55 ` Ni, Ray
2023-12-15 9:55 ` [edk2-devel] [PATCH v4 2/8] UefiCpuPkg: Adds SmmCpuSyncLib library class Wu, Jiaxin
2023-12-19 3:55 ` Ni, Ray
2023-12-15 9:55 ` [edk2-devel] [PATCH v4 3/8] MdePkg/MdeLibs.dsc.inc: Add SafeIntLib instance Wu, Jiaxin
2023-12-15 16:30 ` Michael D Kinney
2023-12-15 9:55 ` [edk2-devel] [PATCH v4 4/8] UefiCpuPkg: Implements SmmCpuSyncLib library instance Wu, Jiaxin
2023-12-18 9:23 ` Ni, Ray
2023-12-19 5:44 ` Wu, Jiaxin
2023-12-19 6:21 ` Ni, Ray
2023-12-15 9:55 ` [edk2-devel] [PATCH v4 5/8] OvmfPkg: Specifies SmmCpuSyncLib instance Wu, Jiaxin
2023-12-19 3:55 ` Ni, Ray
2023-12-15 9:55 ` [edk2-devel] [PATCH v4 6/8] UefiPayloadPkg: " Wu, Jiaxin
2023-12-19 3:55 ` Ni, Ray
2023-12-15 9:55 ` Wu, Jiaxin [this message]
2023-12-19 3:55 ` [edk2-devel] [PATCH v4 7/8] UefiCpuPkg/PiSmmCpuDxeSmm: Simplify RunningApCount decrement Ni, Ray
2023-12-15 9:55 ` [edk2-devel] [PATCH v4 8/8] UefiCpuPkg/PiSmmCpuDxeSmm: Consume SmmCpuSyncLib Wu, Jiaxin
2023-12-19 3:54 ` Ni, Ray
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