From: Scott Wood <scottwood@freescale.com>
To: Kevin Hao <haokexin@gmail.com>
Cc: <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [v2] powerpc/e6500: hw tablewalk: make sure we invalidate and write to the same tlb entry
Date: Fri, 16 Oct 2015 19:01:55 -0500 [thread overview]
Message-ID: <20151017000155.GA15466@home.buserror.net> (raw)
In-Reply-To: <1439884556-11291-1-git-send-email-haokexin@gmail.com>
On Tue, Aug 18, 2015 at 03:55:56PM +0800, Kevin Hao wrote:
> diff --git a/arch/powerpc/mm/tlb_low_64e.S b/arch/powerpc/mm/tlb_low_64e.S
> index e4185581c5a7..3a5b89dfb5a1 100644
> --- a/arch/powerpc/mm/tlb_low_64e.S
> +++ b/arch/powerpc/mm/tlb_low_64e.S
> @@ -68,11 +68,21 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV)
> ld r14,PACAPGD(r13)
> std r15,EX_TLB_R15(r12)
> std r10,EX_TLB_CR(r12)
> +#ifdef CONFIG_PPC_FSL_BOOK3E
> +BEGIN_FTR_SECTION
> + std r7,EX_TLB_R7(r12)
> +END_FTR_SECTION_IFSET(CPU_FTR_SMT)
> +#endif
> TLB_MISS_PROLOG_STATS
> .endm
>
> .macro tlb_epilog_bolted
> ld r14,EX_TLB_CR(r12)
> +#ifdef CONFIG_PPC_FSL_BOOK3E
> +BEGIN_FTR_SECTION
> + ld r7,EX_TLB_R7(r12)
> +END_FTR_SECTION_IFSET(CPU_FTR_SMT)
> +#endif
r7 is used outside the CPU_FTR_SMT section of the e6500 TLB handler.
-Scott
next prev parent reply other threads:[~2015-10-17 0:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-13 11:51 [PATCH 1/3] powerpc/e6500: remove the stale TCD_LOCK macro Kevin Hao
2015-08-13 11:51 ` [PATCH 2/3] powerpc/e6500: hw tablewalk: optimize a bit for tcd lock acquiring codes Kevin Hao
2015-08-13 18:44 ` Scott Wood
2015-08-14 7:13 ` Kevin Hao
2015-08-15 2:44 ` Scott Wood
2015-08-17 11:16 ` Kevin Hao
2015-08-17 21:08 ` Scott Wood
2015-08-13 11:51 ` [PATCH 3/3] powerpc/e6500: hw tablewalk: order the memory access when acquire/release tcd lock Kevin Hao
2015-08-14 3:39 ` Scott Wood
2015-08-14 7:13 ` Kevin Hao
2015-08-15 0:44 ` Scott Wood
2015-08-17 11:19 ` Kevin Hao
2015-08-18 7:55 ` [PATCH v2] powerpc/e6500: hw tablewalk: make sure we invalidate and write to the same tlb entry Kevin Hao
2015-10-17 0:01 ` Scott Wood [this message]
2015-10-22 12:19 ` [v2] " Kevin Hao
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