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| author | Tuan Phan <tphan@ventanamicro.com> | 2023-07-14 12:08:24 -0700 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2023-07-15 14:10:18 +0000 |
| commit | f220dcbba86bfc1222180c61bbd31dd6023433db (patch) | |
| tree | 8664b8b0e32903c179710e7f7018bc45722d1d7f /UefiCpuPkg/Include | |
| parent | cc13dcc57675695d51efe0d61d772155c601a35b (diff) | |
| download | edk2-f220dcbba86bfc1222180c61bbd31dd6023433db.tar.gz edk2-f220dcbba86bfc1222180c61bbd31dd6023433db.tar.bz2 edk2-f220dcbba86bfc1222180c61bbd31dd6023433db.zip | |
UefiCpuPkg: RISC-V: Support MMU with SV39/48/57 mode
During CpuDxe initialization, MMU will be setup with the highest
mode that HW supports.
Signed-off-by: Tuan Phan <tphan@ventanamicro.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin@intel.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Diffstat (limited to 'UefiCpuPkg/Include')
| -rw-r--r-- | UefiCpuPkg/Include/Library/BaseRiscVMmuLib.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/UefiCpuPkg/Include/Library/BaseRiscVMmuLib.h b/UefiCpuPkg/Include/Library/BaseRiscVMmuLib.h new file mode 100644 index 0000000000..f1e609d28d --- /dev/null +++ b/UefiCpuPkg/Include/Library/BaseRiscVMmuLib.h @@ -0,0 +1,68 @@ +/** @file
+
+ Copyright (c) 2015 - 2016, Linaro Ltd. All rights reserved.<BR>
+ Copyright (c) 2023, Ventana Micro Systems Inc. All Rights Reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef BASE_RISCV_MMU_LIB_H_
+#define BASE_RISCV_MMU_LIB_H_
+
+/**
+ The API to flush all local TLBs.
+
+**/
+VOID
+EFIAPI
+RiscVLocalTlbFlushAll (
+ VOID
+ );
+
+/**
+ The API to flush local TLB at a virtual address.
+
+ @param VirtAddr The virtual address.
+
+**/
+VOID
+EFIAPI
+RiscVLocalTlbFlush (
+ UINTN VirtAddr
+ );
+
+/**
+ The API to set a GCD attribute on an memory region.
+
+ @param BaseAddress The base address of the region.
+ @param Length The length of the region.
+ @param Attributes The GCD attributes.
+
+ @retval EFI_INVALID_PARAMETER The BaseAddress or Length was not valid.
+ @retval EFI_OUT_OF_RESOURCES Not enough resource.
+ @retval EFI_SUCCESS The operation succesfully.
+
+**/
+EFI_STATUS
+EFIAPI
+RiscVSetMemoryAttributes (
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN UINT64 Attributes
+ );
+
+/**
+ The API to configure and enable RISC-V MMU with the highest mode supported.
+
+ @retval EFI_OUT_OF_RESOURCES Not enough resource.
+ @retval EFI_SUCCESS The operation succesfully.
+
+**/
+EFI_STATUS
+EFIAPI
+RiscVConfigureMmu (
+ VOID
+ );
+
+#endif /* BASE_RISCV_MMU_LIB_H_ */
|