[edk2-devel] [edk2-staging/RiscV64QemuVirt PATCH V6 01/23] MdePkg/Register: Add register definition header files for RISC-V
Sunil V L
sunilvl at ventanamicro.com
Thu Dec 15 12:56:04 UTC 2022
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=4076
Add register definitions and access routines for RISC-V. These
headers are leveraged from opensbi repo.
Cc: Daniel Schaefer <git at danielschaefer.me>
Cc: Michael D Kinney <michael.d.kinney at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu at intel.com>
Signed-off-by: Sunil V L <sunilvl at ventanamicro.com>
Acked-by: Abner Chang <abner.chang at amd.com>
---
MdePkg/Include/Register/RiscV64/RiscVEncoding.h | 119 ++++++++++++++++++++
MdePkg/Include/Register/RiscV64/RiscVImpl.h | 25 ++++
2 files changed, 144 insertions(+)
diff --git a/MdePkg/Include/Register/RiscV64/RiscVEncoding.h b/MdePkg/Include/Register/RiscV64/RiscVEncoding.h
new file mode 100644
index 000000000000..5c2989b797bf
--- /dev/null
+++ b/MdePkg/Include/Register/RiscV64/RiscVEncoding.h
@@ -0,0 +1,119 @@
+/** @file
+ RISC-V CSR encodings
+
+ Copyright (c) 2019, Western Digital Corporation or its affiliates. All rights reserved.<BR>
+ Copyright (c) 2022, Ventana Micro Systems Inc. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef RISCV_ENCODING_H_
+#define RISCV_ENCODING_H_
+
+#define MSTATUS_SIE 0x00000002UL
+#define MSTATUS_MIE 0x00000008UL
+#define MSTATUS_SPIE_SHIFT 5
+#define MSTATUS_SPIE (1UL << MSTATUS_SPIE_SHIFT)
+#define MSTATUS_UBE 0x00000040UL
+#define MSTATUS_MPIE 0x00000080UL
+#define MSTATUS_SPP_SHIFT 8
+#define MSTATUS_SPP (1UL << MSTATUS_SPP_SHIFT)
+#define MSTATUS_MPP_SHIFT 11
+#define MSTATUS_MPP (3UL << MSTATUS_MPP_SHIFT)
+
+#define SSTATUS_SIE MSTATUS_SIE
+#define SSTATUS_SPIE_SHIFT MSTATUS_SPIE_SHIFT
+#define SSTATUS_SPIE MSTATUS_SPIE
+#define SSTATUS_SPP_SHIFT MSTATUS_SPP_SHIFT
+#define SSTATUS_SPP MSTATUS_SPP
+
+#define IRQ_S_SOFT 1
+#define IRQ_VS_SOFT 2
+#define IRQ_M_SOFT 3
+#define IRQ_S_TIMER 5
+#define IRQ_VS_TIMER 6
+#define IRQ_M_TIMER 7
+#define IRQ_S_EXT 9
+#define IRQ_VS_EXT 10
+#define IRQ_M_EXT 11
+#define IRQ_S_GEXT 12
+#define IRQ_PMU_OVF 13
+
+#define MIP_SSIP (1UL << IRQ_S_SOFT)
+#define MIP_VSSIP (1UL << IRQ_VS_SOFT)
+#define MIP_MSIP (1UL << IRQ_M_SOFT)
+#define MIP_STIP (1UL << IRQ_S_TIMER)
+#define MIP_VSTIP (1UL << IRQ_VS_TIMER)
+#define MIP_MTIP (1UL << IRQ_M_TIMER)
+#define MIP_SEIP (1UL << IRQ_S_EXT)
+#define MIP_VSEIP (1UL << IRQ_VS_EXT)
+#define MIP_MEIP (1UL << IRQ_M_EXT)
+#define MIP_SGEIP (1UL << IRQ_S_GEXT)
+#define MIP_LCOFIP (1UL << IRQ_PMU_OVF)
+
+#define SIP_SSIP MIP_SSIP
+#define SIP_STIP MIP_STIP
+
+#define PRV_U 0UL
+#define PRV_S 1UL
+#define PRV_M 3UL
+
+#define SATP64_MODE 0xF000000000000000ULL
+#define SATP64_ASID 0x0FFFF00000000000ULL
+#define SATP64_PPN 0x00000FFFFFFFFFFFULL
+
+#define SATP_MODE_OFF 0UL
+#define SATP_MODE_SV32 1UL
+#define SATP_MODE_SV39 8UL
+#define SATP_MODE_SV48 9UL
+#define SATP_MODE_SV57 10UL
+#define SATP_MODE_SV64 11UL
+
+#define SATP_MODE SATP64_MODE
+
+/* User Counters/Timers */
+#define CSR_CYCLE 0xc00
+#define CSR_TIME 0xc01
+
+/* Supervisor Trap Setup */
+#define CSR_SSTATUS 0x100
+#define CSR_SEDELEG 0x102
+#define CSR_SIDELEG 0x103
+#define CSR_SIE 0x104
+#define CSR_STVEC 0x105
+
+/* Supervisor Configuration */
+#define CSR_SENVCFG 0x10a
+
+/* Supervisor Trap Handling */
+#define CSR_SSCRATCH 0x140
+#define CSR_SEPC 0x141
+#define CSR_SCAUSE 0x142
+#define CSR_STVAL 0x143
+#define CSR_SIP 0x144
+
+/* Supervisor Protection and Translation */
+#define CSR_SATP 0x180
+
+/* Trap/Exception Causes */
+#define CAUSE_MISALIGNED_FETCH 0x0
+#define CAUSE_FETCH_ACCESS 0x1
+#define CAUSE_ILLEGAL_INSTRUCTION 0x2
+#define CAUSE_BREAKPOINT 0x3
+#define CAUSE_MISALIGNED_LOAD 0x4
+#define CAUSE_LOAD_ACCESS 0x5
+#define CAUSE_MISALIGNED_STORE 0x6
+#define CAUSE_STORE_ACCESS 0x7
+#define CAUSE_USER_ECALL 0x8
+#define CAUSE_SUPERVISOR_ECALL 0x9
+#define CAUSE_VIRTUAL_SUPERVISOR_ECALL 0xa
+#define CAUSE_MACHINE_ECALL 0xb
+#define CAUSE_FETCH_PAGE_FAULT 0xc
+#define CAUSE_LOAD_PAGE_FAULT 0xd
+#define CAUSE_STORE_PAGE_FAULT 0xf
+#define CAUSE_FETCH_GUEST_PAGE_FAULT 0x14
+#define CAUSE_LOAD_GUEST_PAGE_FAULT 0x15
+#define CAUSE_VIRTUAL_INST_FAULT 0x16
+#define CAUSE_STORE_GUEST_PAGE_FAULT 0x17
+
+#endif
diff --git a/MdePkg/Include/Register/RiscV64/RiscVImpl.h b/MdePkg/Include/Register/RiscV64/RiscVImpl.h
new file mode 100644
index 000000000000..ee5c2ba60377
--- /dev/null
+++ b/MdePkg/Include/Register/RiscV64/RiscVImpl.h
@@ -0,0 +1,25 @@
+/** @file
+ RISC-V package definitions.
+
+ Copyright (c) 2016 - 2022, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef RISCV_IMPL_H_
+#define RISCV_IMPL_H_
+
+#include <Register/RiscV64/RiscVEncoding.h>
+
+#define _ASM_FUNC(Name, Section) \
+ .global Name ; \
+ .section #Section, "ax" ; \
+ .type Name, %function ; \
+ .p2align 2 ; \
+ Name:
+
+#define ASM_FUNC(Name) _ASM_FUNC(ASM_PFX(Name), .text. ## Name)
+#define RISCV_TIMER_COMPARE_BITS 32
+
+#endif
--
2.38.0
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