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Re: [PATCH v2 26/28] arm64/sve: Add documentation
- From: Szabolcs Nagy <szabolcs dot nagy at arm dot com>
- To: Dave Martin <Dave dot Martin at arm dot com>, linux-arm-kernel at lists dot infradead dot org
- Cc: nd at arm dot com, Catalin Marinas <catalin dot marinas at arm dot com>, Will Deacon <will dot deacon at arm dot com>, Ard Biesheuvel <ard dot biesheuvel at linaro dot org>, Alex Bennée <alex dot bennee at linaro dot org>, Richard Sandiford <richard dot sandiford at arm dot com>, kvmarm at lists dot cs dot columbia dot edu, libc-alpha at sourceware dot org, linux-arch at vger dot kernel dot org, Mark Rutland <mark dot rutland at arm dot com>
- Date: Fri, 06 Oct 2017 16:43:43 +0100
- Subject: Re: [PATCH v2 26/28] arm64/sve: Add documentation
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On 31/08/17 18:00, Dave Martin wrote:
> +9. System runtime configuration
> +--------------------------------
> +
> +* To mitigate the ABI impact of expansion of the signal frame, a policy
> + mechanism is provided for administrators, distro maintainers and developers
> + to set the default vector length for userspace processes:
> +
> +/proc/cpu/sve_default_vector_length
elsewhere in the patch series i see
/proc/sys/abi/sve_default_vector_length
is this supposed to be the same?