[PATCH v4] arm64: smccc: Support SMCCC v1.3 SVE register saving hint

[Will Deacon]

On Thu, May 27, 2021 at 12:02:48AM +0100, Mark Brown wrote:
> On Wed, May 26, 2021 at 10:31:29PM +0100, Will Deacon wrote:
> > On Mon, May 24, 2021 at 11:42:53AM +0100, Mark Brown wrote:
> 
> > >  drivers/firmware/smccc/smccc.c |  4 ++++
> > >  include/linux/arm-smccc.h      | 24 ++++++++++++++++++++++--
> > >  3 files changed, 52 insertions(+), 2 deletions(-)
> 
> > This fails to build for me:
> 
> Interesting...  which toolchain are you using here?

That's a good question.

/me digs into scripts

I think it's:

gcc version 9.2.1 20191025 (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10))

But note that we actually have a register alias in asm/assembler.h so
maybe just a missing include?

Will