[U-Boot] [PATCH v2 13/20] riscv: Add CSR numbers

Auer, Lukas lukas.auer at aisec.fraunhofer.de
Mon Dec 10 23:48:15 UTC 2018


Hi Bin,

On Fri, 2018-12-07 at 06:14 -0800, Bin Meng wrote:
> The standard RISC-V ISA sets aside a 12-bit encoding space for up
> to 4096 CSRs. This adds all known CSR numbers as defined in the
> RISC-V Privileged Architecture Version 1.10.
> 
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
> 
> Changes in v2: None
> 
>  arch/riscv/include/asm/encoding.h | 219
> ++++++++++++++++++++++++++++++++++++++
>  1 file changed, 219 insertions(+)
> 
> diff --git a/arch/riscv/include/asm/encoding.h
> b/arch/riscv/include/asm/encoding.h
> index 97cf906..c910d5c 100644
> --- a/arch/riscv/include/asm/encoding.h
> +++ b/arch/riscv/include/asm/encoding.h
> @@ -152,6 +152,225 @@
>  #define RISCV_PGSHIFT 12
>  #define RISCV_PGSIZE BIT(RISCV_PGSHIFT)
>  
> +/* CSR numbers */
> +#define CSR_FFLAGS		0x1
> +#define CSR_FRM			0x2
> +#define CSR_FCSR		0x3
> +
> +#define CSR_SSTATUS		0x100

sedeleg (0x102) and sideleg (0x103) are missing here.

The user-mode CSRs are also missing. Not sure if we should include them
since I don't expect that we have to emulate them in machine mode.

Looks good otherwise.
Reviewed-by: Lukas Auer <lukas.auer at aisec.fraunhofer.de>

Thanks,
Lukas

> +#define CSR_SIE			0x104
> +#define CSR_STVEC		0x105
> +#define CSR_SCOUNTEREN		0x106
> +#define CSR_SSCRATCH		0x140
> +#define CSR_SEPC		0x141
> +#define CSR_SCAUSE		0x142
> +#define CSR_STVAL		0x143
> +#define CSR_SIP			0x144
> +#define CSR_SATP		0x180
> +
> +#define CSR_MSTATUS		0x300
> +#define CSR_MISA		0x301
> +#define CSR_MEDELEG		0x302
> +#define CSR_MIDELEG		0x303
> +#define CSR_MIE			0x304
> +#define CSR_MTVEC		0x305
> +#define CSR_MCOUNTEREN		0x306
> +#define CSR_MHPMEVENT3		0x323
> +#define CSR_MHPMEVENT4		0x324
> +#define CSR_MHPMEVENT5		0x325
> +#define CSR_MHPMEVENT6		0x326
> +#define CSR_MHPMEVENT7		0x327
> +#define CSR_MHPMEVENT8		0x328
> +#define CSR_MHPMEVENT9		0x329
> +#define CSR_MHPMEVENT10		0x32a
> +#define CSR_MHPMEVENT11		0x32b
> +#define CSR_MHPMEVENT12		0x32c
> +#define CSR_MHPMEVENT13		0x32d
> +#define CSR_MHPMEVENT14		0x32e
> +#define CSR_MHPMEVENT15		0x32f
> +#define CSR_MHPMEVENT16		0x330
> +#define CSR_MHPMEVENT17		0x331
> +#define CSR_MHPMEVENT18		0x332
> +#define CSR_MHPMEVENT19		0x333
> +#define CSR_MHPMEVENT20		0x334
> +#define CSR_MHPMEVENT21		0x335
> +#define CSR_MHPMEVENT22		0x336
> +#define CSR_MHPMEVENT23		0x337
> +#define CSR_MHPMEVENT24		0x338
> +#define CSR_MHPMEVENT25		0x339
> +#define CSR_MHPMEVENT26		0x33a
> +#define CSR_MHPMEVENT27		0x33b
> +#define CSR_MHPMEVENT28		0x33c
> +#define CSR_MHPMEVENT29		0x33d
> +#define CSR_MHPMEVENT30		0x33e
> +#define CSR_MHPMEVENT31		0x33f
> +#define CSR_MSCRATCH		0x340
> +#define CSR_MEPC		0x341
> +#define CSR_MCAUSE		0x342
> +#define CSR_MTVAL		0x343
> +#define CSR_MIP			0x344
> +#define CSR_PMPCFG0		0x3a0
> +#define CSR_PMPCFG1		0x3a1
> +#define CSR_PMPCFG2		0x3a2
> +#define CSR_PMPCFG3		0x3a3
> +#define CSR_PMPADDR0		0x3b0
> +#define CSR_PMPADDR1		0x3b1
> +#define CSR_PMPADDR2		0x3b2
> +#define CSR_PMPADDR3		0x3b3
> +#define CSR_PMPADDR4		0x3b4
> +#define CSR_PMPADDR5		0x3b5
> +#define CSR_PMPADDR6		0x3b6
> +#define CSR_PMPADDR7		0x3b7
> +#define CSR_PMPADDR8		0x3b8
> +#define CSR_PMPADDR9		0x3b9
> +#define CSR_PMPADDR10		0x3ba
> +#define CSR_PMPADDR11		0x3bb
> +#define CSR_PMPADDR12		0x3bc
> +#define CSR_PMPADDR13		0x3bd
> +#define CSR_PMPADDR14		0x3be
> +#define CSR_PMPADDR15		0x3bf
> +
> +#define CSR_TSELECT		0x7a0
> +#define CSR_TDATA1		0x7a1
> +#define CSR_TDATA2		0x7a2
> +#define CSR_TDATA3		0x7a3
> +#define CSR_DCSR		0x7b0
> +#define CSR_DPC			0x7b1
> +#define CSR_DSCRATCH		0x7b2
> +
> +#define CSR_MCYCLE		0xb00
> +#define CSR_MINSTRET		0xb02
> +#define CSR_MHPMCOUNTER3	0xb03
> +#define CSR_MHPMCOUNTER4	0xb04
> +#define CSR_MHPMCOUNTER5	0xb05
> +#define CSR_MHPMCOUNTER6	0xb06
> +#define CSR_MHPMCOUNTER7	0xb07
> +#define CSR_MHPMCOUNTER8	0xb08
> +#define CSR_MHPMCOUNTER9	0xb09
> +#define CSR_MHPMCOUNTER10	0xb0a
> +#define CSR_MHPMCOUNTER11	0xb0b
> +#define CSR_MHPMCOUNTER12	0xb0c
> +#define CSR_MHPMCOUNTER13	0xb0d
> +#define CSR_MHPMCOUNTER14	0xb0e
> +#define CSR_MHPMCOUNTER15	0xb0f
> +#define CSR_MHPMCOUNTER16	0xb10
> +#define CSR_MHPMCOUNTER17	0xb11
> +#define CSR_MHPMCOUNTER18	0xb12
> +#define CSR_MHPMCOUNTER19	0xb13
> +#define CSR_MHPMCOUNTER20	0xb14
> +#define CSR_MHPMCOUNTER21	0xb15
> +#define CSR_MHPMCOUNTER22	0xb16
> +#define CSR_MHPMCOUNTER23	0xb17
> +#define CSR_MHPMCOUNTER24	0xb18
> +#define CSR_MHPMCOUNTER25	0xb19
> +#define CSR_MHPMCOUNTER26	0xb1a
> +#define CSR_MHPMCOUNTER27	0xb1b
> +#define CSR_MHPMCOUNTER28	0xb1c
> +#define CSR_MHPMCOUNTER29	0xb1d
> +#define CSR_MHPMCOUNTER30	0xb1e
> +#define CSR_MHPMCOUNTER31	0xb1f
> +#define CSR_MCYCLEH		0xb80
> +#define CSR_MINSTRETH		0xb82
> +#define CSR_MHPMCOUNTER3H	0xb83
> +#define CSR_MHPMCOUNTER4H	0xb84
> +#define CSR_MHPMCOUNTER5H	0xb85
> +#define CSR_MHPMCOUNTER6H	0xb86
> +#define CSR_MHPMCOUNTER7H	0xb87
> +#define CSR_MHPMCOUNTER8H	0xb88
> +#define CSR_MHPMCOUNTER9H	0xb89
> +#define CSR_MHPMCOUNTER10H	0xb8a
> +#define CSR_MHPMCOUNTER11H	0xb8b
> +#define CSR_MHPMCOUNTER12H	0xb8c
> +#define CSR_MHPMCOUNTER13H	0xb8d
> +#define CSR_MHPMCOUNTER14H	0xb8e
> +#define CSR_MHPMCOUNTER15H	0xb8f
> +#define CSR_MHPMCOUNTER16H	0xb90
> +#define CSR_MHPMCOUNTER17H	0xb91
> +#define CSR_MHPMCOUNTER18H	0xb92
> +#define CSR_MHPMCOUNTER19H	0xb93
> +#define CSR_MHPMCOUNTER20H	0xb94
> +#define CSR_MHPMCOUNTER21H	0xb95
> +#define CSR_MHPMCOUNTER22H	0xb96
> +#define CSR_MHPMCOUNTER23H	0xb97
> +#define CSR_MHPMCOUNTER24H	0xb98
> +#define CSR_MHPMCOUNTER25H	0xb99
> +#define CSR_MHPMCOUNTER26H	0xb9a
> +#define CSR_MHPMCOUNTER27H	0xb9b
> +#define CSR_MHPMCOUNTER28H	0xb9c
> +#define CSR_MHPMCOUNTER29H	0xb9d
> +#define CSR_MHPMCOUNTER30H	0xb9e
> +#define CSR_MHPMCOUNTER31H	0xb9f
> +
> +#define CSR_CYCLE		0xc00
> +#define CSR_TIME		0xc01
> +#define CSR_INSTRET		0xc02
> +#define CSR_HPMCOUNTER3		0xc03
> +#define CSR_HPMCOUNTER4		0xc04
> +#define CSR_HPMCOUNTER5		0xc05
> +#define CSR_HPMCOUNTER6		0xc06
> +#define CSR_HPMCOUNTER7		0xc07
> +#define CSR_HPMCOUNTER8		0xc08
> +#define CSR_HPMCOUNTER9		0xc09
> +#define CSR_HPMCOUNTER10	0xc0a
> +#define CSR_HPMCOUNTER11	0xc0b
> +#define CSR_HPMCOUNTER12	0xc0c
> +#define CSR_HPMCOUNTER13	0xc0d
> +#define CSR_HPMCOUNTER14	0xc0e
> +#define CSR_HPMCOUNTER15	0xc0f
> +#define CSR_HPMCOUNTER16	0xc10
> +#define CSR_HPMCOUNTER17	0xc11
> +#define CSR_HPMCOUNTER18	0xc12
> +#define CSR_HPMCOUNTER19	0xc13
> +#define CSR_HPMCOUNTER20	0xc14
> +#define CSR_HPMCOUNTER21	0xc15
> +#define CSR_HPMCOUNTER22	0xc16
> +#define CSR_HPMCOUNTER23	0xc17
> +#define CSR_HPMCOUNTER24	0xc18
> +#define CSR_HPMCOUNTER25	0xc19
> +#define CSR_HPMCOUNTER26	0xc1a
> +#define CSR_HPMCOUNTER27	0xc1b
> +#define CSR_HPMCOUNTER28	0xc1c
> +#define CSR_HPMCOUNTER29	0xc1d
> +#define CSR_HPMCOUNTER30	0xc1e
> +#define CSR_HPMCOUNTER31	0xc1f
> +#define CSR_CYCLEH		0xc80
> +#define CSR_TIMEH		0xc81
> +#define CSR_INSTRETH		0xc82
> +#define CSR_HPMCOUNTER3H	0xc83
> +#define CSR_HPMCOUNTER4H	0xc84
> +#define CSR_HPMCOUNTER5H	0xc85
> +#define CSR_HPMCOUNTER6H	0xc86
> +#define CSR_HPMCOUNTER7H	0xc87
> +#define CSR_HPMCOUNTER8H	0xc88
> +#define CSR_HPMCOUNTER9H	0xc89
> +#define CSR_HPMCOUNTER10H	0xc8a
> +#define CSR_HPMCOUNTER11H	0xc8b
> +#define CSR_HPMCOUNTER12H	0xc8c
> +#define CSR_HPMCOUNTER13H	0xc8d
> +#define CSR_HPMCOUNTER14H	0xc8e
> +#define CSR_HPMCOUNTER15H	0xc8f
> +#define CSR_HPMCOUNTER16H	0xc90
> +#define CSR_HPMCOUNTER17H	0xc91
> +#define CSR_HPMCOUNTER18H	0xc92
> +#define CSR_HPMCOUNTER19H	0xc93
> +#define CSR_HPMCOUNTER20H	0xc94
> +#define CSR_HPMCOUNTER21H	0xc95
> +#define CSR_HPMCOUNTER22H	0xc96
> +#define CSR_HPMCOUNTER23H	0xc97
> +#define CSR_HPMCOUNTER24H	0xc98
> +#define CSR_HPMCOUNTER25H	0xc99
> +#define CSR_HPMCOUNTER26H	0xc9a
> +#define CSR_HPMCOUNTER27H	0xc9b
> +#define CSR_HPMCOUNTER28H	0xc9c
> +#define CSR_HPMCOUNTER29H	0xc9d
> +#define CSR_HPMCOUNTER30H	0xc9e
> +#define CSR_HPMCOUNTER31H	0xc9f
> +
> +#define CSR_MVENDORID		0xf11
> +#define CSR_MARCHID		0xf12
> +#define CSR_MIMPID		0xf13
> +#define CSR_MHARTID		0xf14
> +
>  #endif /* __riscv */
>  
>  #endif /* RISCV_CSR_ENCODING_H */


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