Re: [PATCH 05/17] riscv: use CSR_SATP instead of the legacy sptbr name in switch_mm

[Atish Patra]

On Mon, 2019-06-24 at 07:42 +0200, Christoph Hellwig wrote:
> Switch to our own constant for the satp register instead of using
> the old name from a legacy version of the privileged spec.
> 
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
>  arch/riscv/mm/context.c | 7 +------
>  1 file changed, 1 insertion(+), 6 deletions(-)
> 
> diff --git a/arch/riscv/mm/context.c b/arch/riscv/mm/context.c
> index 89ceb3cbe218..beeb5d7f92ea 100644
> --- a/arch/riscv/mm/context.c
> +++ b/arch/riscv/mm/context.c
> @@ -57,12 +57,7 @@ void switch_mm(struct mm_struct *prev, struct
> mm_struct *next,
>  	cpumask_clear_cpu(cpu, mm_cpumask(prev));
>  	cpumask_set_cpu(cpu, mm_cpumask(next));
>  
> -	/*
> -	 * Use the old spbtr name instead of using the current satp
> -	 * name to support binutils 2.29 which doesn't know about the
> -	 * privileged ISA 1.10 yet.
> -	 */
> -	csr_write(sptbr, virt_to_pfn(next->pgd) | SATP_MODE);
> +	csr_write(CSR_SATP, virt_to_pfn(next->pgd) | SATP_MODE);
>  	local_flush_tlb_all();
>  
>  	flush_icache_deferred(next);

Reviewed-by: Atish Patra <atish.patra@xxxxxxx>

-- 
Regards,
Atish