Subject: [PATCH REPOST 1/3] arm64: Use existing defines for mdscr

From: [email-masked] (Alex Bennée)
Date: Wed, 04 Oct 2017 00:28:31 +0100

Julien Thierry <[email-masked]> writes:

> Signed-off-by: Julien Thierry <[email-masked]>
> Cc: Catalin Marinas <[email-masked]>
> Cc: Will Deacon <[email-masked]>
> Cc: Mark Rutland <[email-masked]>

Sorry I meant:

Reviewed-by: Alex Benn?e <[email-masked]>

>
> ---
>  arch/arm64/include/asm/assembler.h | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
> index d58a625..00a4526 100644
> --- a/arch/arm64/include/asm/assembler.h
> +++ b/arch/arm64/include/asm/assembler.h
> @@ -30,6 +30,7 @@
>  #include <asm/pgtable-hwdef.h>
>  #include <asm/ptrace.h>
>  #include <asm/thread_info.h>
> +#include <asm/debug-monitors.h>
>
>  /*
>   * Enable and disable interrupts.
> @@ -65,7 +66,7 @@
>  	.macro	disable_step_tsk, flgs, tmp
>  	tbz	\flgs, #TIF_SINGLESTEP, 9990f
>  	mrs	\tmp, mdscr_el1
> -	bic	\tmp, \tmp, #1
> +	bic	\tmp, \tmp, #DBG_MDSCR_SS
>  	msr	mdscr_el1, \tmp
>  	isb	// Synchronise with enable_dbg
>  9990:
> @@ -75,7 +76,7 @@
>  	tbz	\flgs, #TIF_SINGLESTEP, 9990f
>  	disable_dbg
>  	mrs	\tmp, mdscr_el1
> -	orr	\tmp, \tmp, #1
> +	orr	\tmp, \tmp, #DBG_MDSCR_SS
>  	msr	mdscr_el1, \tmp
>  9990:
>  	.endm

--
Alex Benn?e