[PATCH v3 4/5] tools headers arm64: Update sysreg.h with kernel sources

[Mark Brown]

On Wed, Oct 18, 2023 at 01:57:31PM +0200, Eric Auger wrote:
> On 10/11/23 21:57, Oliver Upton wrote:

> >  #define set_pstate_pan(x)		asm volatile(SET_PSTATE_PAN(x))
> >  #define set_pstate_uao(x)		asm volatile(SET_PSTATE_UAO(x))
> >  #define set_pstate_ssbs(x)		asm volatile(SET_PSTATE_SSBS(x))
> > +#define set_pstate_dit(x)		asm volatile(SET_PSTATE_DIT(x))

> could you comment on the *DIT* addictions, what is it for?

DIT is data independent timing, this tells the processor to ensure that
instructions take a constant time regardless of the data they are
handling.

Note that this file is just a copy of arch/arm64/include/asm/gpr-num.h,
the main purpose here is to sync with the original.

> > +/*
> > + * Automatically generated definitions for system registers, the
> > + * manual encodings below are in the process of being converted to
> > + * come from here. The header relies on the definition of sys_reg()
> > + * earlier in this file.
> > + */
> > +#include "asm/sysreg-defs.h"

> strange to have this include in the middle of the file

It relies on defines from earlier in the header.
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