From: "Chao Li" <lichao@loongson.cn>
To: devel@edk2.groups.io
Cc: Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Zhiguang Liu <zhiguang.liu@intel.com>
Subject: [edk2-devel] [PATCH v1 03/29] MdePkg: Add LoongArch64 exception function set into BaseLib
Date: Thu, 2 Nov 2023 21:42:23 +0800 [thread overview]
Message-ID: <20231102134249.3983594-4-lichao@loongson.cn> (raw)
In-Reply-To: <20231102134249.3983594-1-lichao@loongson.cn>
Adding SetExceptionBaseAddress and SetTlbRebaseAddress functions
for LoongArch64.
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4584
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
---
MdePkg/Include/Library/BaseLib.h | 20 +++++++++
MdePkg/Library/BaseLib/BaseLib.inf | 1 +
.../BaseLib/LoongArch64/ExceptionBase.S | 41 +++++++++++++++++++
3 files changed, 62 insertions(+)
create mode 100644 MdePkg/Library/BaseLib/LoongArch64/ExceptionBase.S
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h
index 5d7067ee85..a9a69c734c 100644
--- a/MdePkg/Include/Library/BaseLib.h
+++ b/MdePkg/Include/Library/BaseLib.h
@@ -229,6 +229,26 @@ typedef struct {
#define BASE_LIBRARY_JUMP_BUFFER_ALIGNMENT 8
+/*
+ * Set the exception base address for LoongArch.
+ *
+ * @param ExceptionBaseAddress The exception base address, must be aligned greater than or qeual to 4K .
+ */
+VOID
+SetExceptionBaseAddress (
+ IN UINT64
+ );
+
+/*
+ * Set the TlbRebase address for LoongArch.
+ *
+ * @param TlbRebaseAddress The TlbRebase address, must be aligned greater than or qeual to 4K .
+ */
+VOID
+SetTlbRebaseAddress (
+ IN UINT64
+ );
+
#endif // defined (MDE_CPU_LOONGARCH64)
//
diff --git a/MdePkg/Library/BaseLib/BaseLib.inf b/MdePkg/Library/BaseLib/BaseLib.inf
index 03c7b02e82..a18fe5efb4 100644
--- a/MdePkg/Library/BaseLib/BaseLib.inf
+++ b/MdePkg/Library/BaseLib/BaseLib.inf
@@ -419,6 +419,7 @@
LoongArch64/CpuPause.S | GCC
LoongArch64/SetJumpLongJump.S | GCC
LoongArch64/SwitchStack.S | GCC
+ LoongArch64/ExceptionBase.S | GCC
[Packages]
MdePkg/MdePkg.dec
diff --git a/MdePkg/Library/BaseLib/LoongArch64/ExceptionBase.S b/MdePkg/Library/BaseLib/LoongArch64/ExceptionBase.S
new file mode 100644
index 0000000000..36c6ca7ca8
--- /dev/null
+++ b/MdePkg/Library/BaseLib/LoongArch64/ExceptionBase.S
@@ -0,0 +1,41 @@
+#------------------------------------------------------------------------------
+#
+# LoongArch set exception base address operations
+#
+# Copyright (c) 2023, Loongson Technology Corporation Limited. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+#------------------------------------------------------------------------------
+
+#include <Base.h>
+#include <Register/LoongArch64/Csr.h>
+
+ASM_GLOBAL ASM_PFX(SetExceptionBaseAddress)
+ASM_GLOBAL ASM_PFX(SetTlbRebaseAddress)
+
+#/**
+# Set the exception base address for LoongArch.
+#
+# @param ExceptionBaseAddress The exception base address, must be aligned greater than or qeual to 4K .
+#**/
+ASM_PFX(SetExceptionBaseAddress):
+ csrrd $t0, LOONGARCH_CSR_ECFG
+ li.d $t1, ~(BIT16 | BIT17 | BIT18)
+ and $t0, $t0, $t1
+ csrwr $t0, LOONGARCH_CSR_ECFG
+
+ move $t0, $a0
+ csrwr $t0, LOONGARCH_CSR_EBASE
+ jirl $zero, $ra, 0
+
+#/**
+# Set the TlbRebase address for LoongArch.
+#
+# @param TlbRebaseAddress The TlbRebase address, must be aligned greater than or qeual to 4K .
+#**/
+ASM_PFX(SetTlbRebaseAddress):
+ move $t0, $a0
+ csrwr $t0, LOONGARCH_CSR_TLBREBASE
+ jirl $zero, $ra, 0
+.end
--
2.27.0
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#110534): https://edk2.groups.io/g/devel/message/110534
Mute This Topic: https://groups.io/mt/102342189/7686176
Group Owner: devel+owner@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io]
-=-=-=-=-=-=-=-=-=-=-=-
next prev parent reply other threads:[~2023-11-02 13:45 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20231102134249.3983594-1-lichao@loongson.cn>
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 02/29] MdePkg: Add LoongArch64 FPU function set into BaseCpuLib Chao Li
2023-11-02 13:42 ` Chao Li [this message]
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 05/29] MdePkg: Add LoongArch Cpucfg function Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 06/29] MdePkg: Add read stable counter operation for LoongArch Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 08/29] MdePkg: Add IOCSR " Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 09/29] UefiCpuPkg: Add LoongArch64 CPU Timer library Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 11/29] UefiCpuPkg: Add CpuMmuLib.h to UefiCpuPkg Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 15/29] EmbeddedPkg: Add PcdPrePiCpuIoSize width for LOONGARCH64 Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 16/29] ArmVirtPkg: Move PCD of FDT base address and FDT padding to OvmfPkg Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 17/29] OvmfPkg/LoongArchVirt: Add PciCpuIo2Dxe module Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 18/29] OvmfPkg/LoongArchVirt: Add stable timer driver Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 19/29] OvmfPkg/LoongArchVirt: Add a NULL library named CollectApResouceLibNull Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 21/29] OvmfPkg/LoongArchVirt: Add real time clock library Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 23/29] OvmfPkg/LoongArchVirt: Add PeiServiceTablePointerLib Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 24/29] OvmfPkg/LoongArchVirt: Add platform boot manager library Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 25/29] OvmfPkg/LoongArchVirt: Add FdtQemuFwCfgLib Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 26/29] OvmfPkg/LoongArchVirt: Add reset system library Chao Li
2023-11-02 13:42 ` [edk2-devel] [PATCH v1 27/29] OvmfPkg/LoongArchVirt: Support SEC phase Chao Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-list from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20231102134249.3983594-4-lichao@loongson.cn \
--to=devel@edk2.groups.io \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox