Re: [PATCH 5/6] target/ppc: 440 optimise tlbwe TLB flushing

[Cédric Le Goater]

On 1/17/24 16:12, Nicholas Piggin wrote:
> Have 440 tlbwe flush only the range corresponding to the addresses
> covered by the software TLB entry being modified rather than the
> entire TLB. This matches what 4xx does.
>
> Signed-off-by: Nicholas Piggin <npiggin@gmail.com>


Acked-by: Cédric Le Goater <clg@kaod.org>

Thanks,

C.


> ---
>   target/ppc/mmu_helper.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
> index 923779d052..ba965f1779 100644
> --- a/target/ppc/mmu_helper.c
> +++ b/target/ppc/mmu_helper.c
> @@ -864,7 +864,7 @@ void helper_440_tlbwe(CPUPPCState *env, uint32_t word, 
> target_ulong entry,
>   
>       /* Invalidate previous TLB (if it's valid) */
>       if (tlb->prot & PAGE_VALID) {
> -        tlb_flush(env_cpu(env));
> +        ppcemb_tlb_flush(env_cpu(env), tlb);
>       }
>   
>       switch (word) {