Re: [PATCH v11 34/40] kselftest/arm64: sme: Provide streaming mode SVE stress test

On Mon, Feb 07, 2022 at 03:21:03PM +0000, Mark Brown wrote:

One of the features of SME is the addition of streaming mode, in which we have access to a set of streaming mode SVE registers at the SME vector length. Since these are accessed using the SVE instructions let's reuse the existing SVE stress test for testing with a compile time option for controlling the few small differences needed:

• Enter streaming mode immediately on starting the program.
• In streaming mode FFR is removed so skip reading and writing FFR.

In order to avoid requiring a cutting edge toolchain with SME support use the op/CR form for specifying SVCR.

Signed-off-by: Mark Brown broonie@kernel.org

Acked-by: Catalin Marinas catalin.marinas@arm.com