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The Scalar Crypto specification defines Zk as a shorthand for the Zkn, Zkr and Zkt extensions. The same follows for both Zkn, Zks and Zbk, which are all shorthands for various other extensions. The detailed breakdown can be found in their dt-binding entries. Since Zkn also implies the Zbkb, Zbkc and Zbkx extensions, simply passing "zk" through a DT should enable all of Zbkb, Zbkc, Zbkx, Zkn, Zkr and Zkt. For example, setting the "riscv,isa" DT property to "rv64imafdc_zk" should generate the following cpuinfo output: "rv64imafdc_zicntr_zicsr_zifencei_zihpm_zbkb_zbkc_zbkx_zknd_zkne_zknh_zkr_zkt" riscv_isa_ext_data grows a pair of new members, to permit setting the relevant bits for "bundled" extensions, both while parsing the ISA string and the new dedicated extension properties. Co-developed-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Evan Green <evan@rivosinc.com> Signed-off-by: Clément Léger <cleger@rivosinc.com> Acked-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20231114141256.126749-4-cleger@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
82 lines
2.5 KiB
C
82 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copied from arch/arm64/include/asm/hwcap.h
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*
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* Copyright (C) 2012 ARM Ltd.
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* Copyright (C) 2017 SiFive
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*/
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#ifndef _ASM_RISCV_HWCAP_H
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#define _ASM_RISCV_HWCAP_H
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#include <uapi/asm/hwcap.h>
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#define RISCV_ISA_EXT_a ('a' - 'a')
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#define RISCV_ISA_EXT_b ('b' - 'a')
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#define RISCV_ISA_EXT_c ('c' - 'a')
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#define RISCV_ISA_EXT_d ('d' - 'a')
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#define RISCV_ISA_EXT_f ('f' - 'a')
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#define RISCV_ISA_EXT_h ('h' - 'a')
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#define RISCV_ISA_EXT_i ('i' - 'a')
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#define RISCV_ISA_EXT_j ('j' - 'a')
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#define RISCV_ISA_EXT_k ('k' - 'a')
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#define RISCV_ISA_EXT_m ('m' - 'a')
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#define RISCV_ISA_EXT_p ('p' - 'a')
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#define RISCV_ISA_EXT_q ('q' - 'a')
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#define RISCV_ISA_EXT_s ('s' - 'a')
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#define RISCV_ISA_EXT_u ('u' - 'a')
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#define RISCV_ISA_EXT_v ('v' - 'a')
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/*
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* These macros represent the logical IDs of each multi-letter RISC-V ISA
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* extension and are used in the ISA bitmap. The logical IDs start from
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* RISCV_ISA_EXT_BASE, which allows the 0-25 range to be reserved for single
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* letter extensions. The maximum, RISCV_ISA_EXT_MAX, is defined in order
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* to allocate the bitmap and may be increased when necessary.
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*
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* New extensions should just be added to the bottom, rather than added
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* alphabetically, in order to avoid unnecessary shuffling.
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*/
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#define RISCV_ISA_EXT_BASE 26
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#define RISCV_ISA_EXT_SSCOFPMF 26
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#define RISCV_ISA_EXT_SSTC 27
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#define RISCV_ISA_EXT_SVINVAL 28
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#define RISCV_ISA_EXT_SVPBMT 29
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#define RISCV_ISA_EXT_ZBB 30
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#define RISCV_ISA_EXT_ZICBOM 31
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#define RISCV_ISA_EXT_ZIHINTPAUSE 32
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#define RISCV_ISA_EXT_SVNAPOT 33
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#define RISCV_ISA_EXT_ZICBOZ 34
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#define RISCV_ISA_EXT_SMAIA 35
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#define RISCV_ISA_EXT_SSAIA 36
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#define RISCV_ISA_EXT_ZBA 37
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#define RISCV_ISA_EXT_ZBS 38
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#define RISCV_ISA_EXT_ZICNTR 39
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#define RISCV_ISA_EXT_ZICSR 40
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#define RISCV_ISA_EXT_ZIFENCEI 41
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#define RISCV_ISA_EXT_ZIHPM 42
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#define RISCV_ISA_EXT_SMSTATEEN 43
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#define RISCV_ISA_EXT_ZICOND 44
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#define RISCV_ISA_EXT_ZBC 45
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#define RISCV_ISA_EXT_ZBKB 46
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#define RISCV_ISA_EXT_ZBKC 47
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#define RISCV_ISA_EXT_ZBKX 48
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#define RISCV_ISA_EXT_ZKND 49
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#define RISCV_ISA_EXT_ZKNE 50
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#define RISCV_ISA_EXT_ZKNH 51
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#define RISCV_ISA_EXT_ZKR 52
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#define RISCV_ISA_EXT_ZKSED 53
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#define RISCV_ISA_EXT_ZKSH 54
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#define RISCV_ISA_EXT_ZKT 55
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#define RISCV_ISA_EXT_MAX 64
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#define RISCV_ISA_EXT_INVALID U32_MAX
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#ifdef CONFIG_RISCV_M_MODE
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#define RISCV_ISA_EXT_SxAIA RISCV_ISA_EXT_SMAIA
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#else
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#define RISCV_ISA_EXT_SxAIA RISCV_ISA_EXT_SSAIA
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#endif
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#endif /* _ASM_RISCV_HWCAP_H */
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