Re: [PATCH 08/31] arm64: Add a facility to turn an ESR syndrome into a sysreg encoding

Catalin Marinas
2017-06-09T10:33:56Z

On Wed, May 03, 2017 at 11:45:43AM +0100, Marc Zyngier wrote:
> It is often useful to compare an ESR syndrome reporting the trapping
> of a system register with a value matching that system register.
>
> Since encoding both the sysreg and the ESR version seem to be a bit
> overkill, let's add a set of macros that convert an ESR value into
> the corresponding sysreg encoding.
>
> We handle both AArch32 and AArch64, taking advantage of identical
> encodings between system registers and CP15 accessors.
>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

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