On 05/04/2019 10:30, Heiko Stuebner wrote:
> Function to get the contents of the mpidr register, similar to
> its arm64 counterpart.
>
> Signed-off-by: Heiko Stuebner <he...@sntech.de>
Reviewed-by: Matthias Brugger <mbrug...@suse.com>
> ---
> arch/arm/include/asm/system.h | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
> index aed2e3c51e..b5332f4347 100644
> --- a/arch/arm/include/asm/system.h
> +++ b/arch/arm/include/asm/system.h
> @@ -364,6 +364,15 @@ static inline int is_hyp(void)
> #endif
> }
>
> +static inline unsigned long read_mpidr(void)
> +{
> + unsigned long val;
> +
> + asm volatile ("mrc p15, 0, %0, c0, c0, 5" : "=r" (val));
> +
> + return val;
> +}
> +
> static inline unsigned int get_cr(void)
> {
> unsigned int val;
>
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