[PATCH v2 1/7] include: sbi: Introduce common endianess conversion macro

Anup Patel anup at brainfault.org
Tue Jan 9 02:22:52 PST 2024


On Mon, Jan 8, 2024 at 12:25 PM Himanshu Chauhan
<hchauhan at ventanamicro.com> wrote:
>
> Introduce cpu_to_lle and lle_to_cpu macros which invoke
> correct word length cpu_to_le<64/32> conversion based on
> __riscv_xlen.
>
> Signed-off-by: Himanshu Chauhan <hchauhan at ventanamicro.com>

Already reviewed previously.

Reviewed-by: Anup Patel <anup at brainfault.org>

Regards,
Anup

> ---
>  include/sbi/sbi_byteorder.h | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/include/sbi/sbi_byteorder.h b/include/sbi/sbi_byteorder.h
> index 15107e1..db6eb2b 100644
> --- a/include/sbi/sbi_byteorder.h
> +++ b/include/sbi/sbi_byteorder.h
> @@ -58,4 +58,14 @@
>  #define le64_to_cpu(x)         ((uint64_t)BSWAP64(x))
>  #endif
>
> +#if __riscv_xlen == 64
> +#define cpu_to_lle             cpu_to_le64
> +#define lle_to_cpu             le64_to_cpu
> +#elif __riscv_xlen == 32
> +#define cpu_to_lle             cpu_to_le32
> +#define lle_to_cpu             le32_to_cpu
> +#else
> +#error "Unknown __riscv_xlen"
> +#endif
> +
>  #endif /* __SBI_BYTEORDER_H__ */
> --
> 2.34.1
>
>
> --
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