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49 lines
1.2 KiB
49 lines
1.2 KiB
/* 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 <linux/bits.h> |
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#include <uapi/asm/hwcap.h> |
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#ifndef __ASSEMBLY__ |
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/* |
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* This yields a mask that user programs can use to figure out what |
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* instruction set this cpu supports. |
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*/ |
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#define ELF_HWCAP (elf_hwcap) |
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enum { |
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CAP_HWCAP = 1, |
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}; |
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extern unsigned long elf_hwcap; |
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#define RISCV_ISA_EXT_a ('a' - '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_m ('m' - '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_MAX 64 |
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unsigned long riscv_isa_extension_base(const unsigned long *isa_bitmap); |
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#define riscv_isa_extension_mask(ext) BIT_MASK(RISCV_ISA_EXT_##ext) |
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bool __riscv_isa_extension_available(const unsigned long *isa_bitmap, int bit); |
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#define riscv_isa_extension_available(isa_bitmap, ext) \ |
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__riscv_isa_extension_available(isa_bitmap, RISCV_ISA_EXT_##ext) |
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#endif |
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#endif /* _ASM_RISCV_HWCAP_H */
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