Re: [PATCH 12/27] arm64/sve: Support vector length resetting for new processes

2017-08-22 Thread Dave Martin
On Tue, Aug 22, 2017 at 05:22:11PM +0100, Alex Bennée wrote: > > Dave Martin writes: > > > It's desirable to be able to reset the vector length to some sane > > default for new processes, since the new binary and its libraries > > processes may or may not be SVE-aware. > > > > This patch tracks

Re: [PATCH 12/27] arm64/sve: Support vector length resetting for new processes

2017-08-22 Thread Alex Bennée
Dave Martin writes: > It's desirable to be able to reset the vector length to some sane > default for new processes, since the new binary and its libraries > processes may or may not be SVE-aware. > > This patch tracks the desired post-exec vector length (if any) in a > new thread member sve_vl_

[PATCH 12/27] arm64/sve: Support vector length resetting for new processes

2017-08-09 Thread Dave Martin
It's desirable to be able to reset the vector length to some sane default for new processes, since the new binary and its libraries processes may or may not be SVE-aware. This patch tracks the desired post-exec vector length (if any) in a new thread member sve_vl_onexec, and adds a new thread flag