23 Feb
2022
23 Feb
'22
3:28 p.m.
On Mon, Feb 07, 2022 at 03:20:53PM +0000, Mark Brown wrote:
Both streaming mode and ZA may increase power consumption when they are enabled and streaming mode makes many FPSIMD and SVE instructions undefined which will cause problems for any kernel mode floating point so disable both when we flush the CPU state. This covers both kernel_neon_begin() and idle and after flushing the state a reload is always required anyway.
Signed-off-by: Mark Brown broonie@kernel.org
Reviewed-by: Catalin Marinas catalin.marinas@arm.com