linux-kernel - Re: [PATCH v2 3/5] riscv: Add update_mmu_tlb

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Date: Tue, 7 May 2024 07:35:20 +0200
From: Alexandre Ghiti <alex@...ti.fr>
To: Bang Li <libang.li@...group.com>, akpm@...ux-foundation.org,
 chenhuacai@...nel.org, tsbogend@...ha.franken.de, paul.walmsley@...ive.com,
 palmer@...belt.com, chris@...kel.net, jcmvbkbc@...il.com
Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org,
 loongarch@...ts.linux.dev, linux-riscv@...ts.infradead.org,
 david@...hat.com, ryan.roberts@....com, ioworker0@...il.com,
 libang.linux@...il.com
Subject: Re: [PATCH v2 3/5] riscv: Add update_mmu_tlb_range()

Hi Bang,

On 06/05/2024 17:51, Bang Li wrote:
> Added update_mmu_tlb_range function, we can batch update tlb of an
> address range.
>
> Signed-off-by: Bang Li <libang.li@...group.com>
> ---
>   arch/riscv/include/asm/pgtable.h | 4 ++++
>   1 file changed, 4 insertions(+)
>
> diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
> index 661b2b4fe758..f784c6dd2c66 100644
> --- a/arch/riscv/include/asm/pgtable.h
> +++ b/arch/riscv/include/asm/pgtable.h
> @@ -489,6 +489,10 @@ static inline void update_mmu_cache_range(struct vm_fault *vmf,
>   #define __HAVE_ARCH_UPDATE_MMU_TLB
>   #define update_mmu_tlb update_mmu_cache
>   
> +#define __HAVE_ARCH_UPDATE_MMU_TLB_RANGE
> +#define update_mmu_tlb_range(vma, addr, ptep, nr) \
> +	update_mmu_cache_range(NULL, vma, addr, ptep, nr)
> +
>   static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
>   		unsigned long address, pmd_t *pmdp)
>   {


You can add:

Reviewed-by: Alexandre Ghiti <alexghiti@...osinc.com>

Thanks,

Alex