Re: [edk2-staging/RiscV64QemuVirt PATCH V7 01/20] MdePkg/Register: Add register definition header files for RISC-V

["Michael D Kinney" <michael.d.kinney@intel.com>]

Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>


> -----Original Message-----
> From: Sunil V L <sunilvl@ventanamicro.com>
> Sent: Saturday, January 28, 2023 11:18 AM
> To: devel@edk2.groups.io
> Cc: Daniel Schaefer <git@danielschaefer.me>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <gaoliming@byosoft.com.cn>;
> Liu, Zhiguang <zhiguang.liu@intel.com>; Abner Chang <abner.chang@amd.com>
> Subject: [edk2-staging/RiscV64QemuVirt PATCH V7 01/20] MdePkg/Register: Add register definition header files for RISC-V
> 
> 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@danielschaefer.me>
> 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: Sunil V L <sunilvl@ventanamicro.com>
> Acked-by: Abner Chang <abner.chang@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