From: Scott Wood <scottwood@freescale.com>
To: Kevin Hao <haokexin@gmail.com>
Cc: linuxppc <linuxppc-dev@lists.ozlabs.org>
Subject: Re: [PATCH v2 1/8] powerpc/fsl_booke: protect the access to MAS7 with MMU_FTR_BIG_PHYS
Date: Fri, 26 Jul 2013 18:14:00 -0500 [thread overview]
Message-ID: <1374880440.30721.36@snotra> (raw)
In-Reply-To: <1372942454-25191-2-git-send-email-haokexin@gmail.com> (from haokexin@gmail.com on Thu Jul 4 07:54:07 2013)
On 07/04/2013 07:54:07 AM, Kevin Hao wrote:
> diff --git a/arch/powerpc/kernel/fsl_booke_entry_mapping.S =20
> b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
> index a92c79b..2201f84 100644
> --- a/arch/powerpc/kernel/fsl_booke_entry_mapping.S
> +++ b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
> @@ -88,9 +88,11 @@ skpinv: addi r6,r6,1 =20
> /* Increment */
> 1: mflr r7
>=20
> mfspr r8,SPRN_MAS3
> -#ifdef CONFIG_PHYS_64BIT
> +BEGIN_MMU_FTR_SECTION
> mfspr r23,SPRN_MAS7
> -#endif
> +MMU_FTR_SECTION_ELSE
> + li r23,0
> +ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_BIG_PHYS)
> and r8,r6,r8
> subfic r9,r6,-4096
> and r9,r9,r7
> diff --git a/arch/powerpc/kernel/head_fsl_booke.S =20
> b/arch/powerpc/kernel/head_fsl_booke.S
> index d10a7ca..a04a48d 100644
> --- a/arch/powerpc/kernel/head_fsl_booke.S
> +++ b/arch/powerpc/kernel/head_fsl_booke.S
> @@ -82,7 +82,11 @@ _ENTRY(_start);
> and r19,r3,r18 /* r19 =3D page offset */
> andc r31,r20,r18 /* r31 =3D page base */
> or r31,r31,r19 /* r31 =3D devtree phys addr */
> +BEGIN_MMU_FTR_SECTION
> mfspr r30,SPRN_MAS7
> +MMU_FTR_SECTION_ELSE
> + li r30,0
> +ALT_MMU_FTR_SECTION_END_IFSET(MMU_FTR_BIG_PHYS)
Code patching hasn't been done yet at this point.
-Scott=
next prev parent reply other threads:[~2013-07-26 23:14 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-04 12:54 [PATCH v2 0/8] powerpc: enable the relocatable support for fsl booke 32bit kernel Kevin Hao
2013-07-04 12:54 ` [PATCH v2 1/8] powerpc/fsl_booke: protect the access to MAS7 with MMU_FTR_BIG_PHYS Kevin Hao
2013-07-26 23:14 ` Scott Wood [this message]
2013-08-04 0:30 ` Kevin Hao
2013-07-04 12:54 ` [PATCH v2 2/8] powerpc/fsl_booke: introduce get_phys_addr function Kevin Hao
2013-07-04 12:54 ` [PATCH v2 3/8] powerpc: enable the relocatable support for the fsl booke 32bit kernel Kevin Hao
2013-07-26 23:28 ` Scott Wood
2013-08-04 0:38 ` Kevin Hao
2013-07-04 12:54 ` [PATCH v2 4/8] powerpc/fsl_booke: set the tlb entry for the kernel address in AS1 Kevin Hao
2013-07-26 23:37 ` Scott Wood
2013-08-04 0:42 ` Kevin Hao
2013-07-04 12:54 ` [PATCH v2 5/8] memblock: introduce the memblock_reinit function Kevin Hao
2013-07-04 12:54 ` [PATCH v2 6/8] powerpc: introduce early_get_first_memblock_info Kevin Hao
2013-07-27 0:18 ` Scott Wood
2013-08-04 0:45 ` Kevin Hao
2013-08-05 23:59 ` Scott Wood
2013-08-06 1:21 ` Kevin Hao
2013-07-04 12:54 ` [PATCH v2 7/8] powerpc/fsl_booke: make sure PAGE_OFFSET map to memstart_addr for relocatable kernel Kevin Hao
2013-07-27 0:17 ` Scott Wood
2013-08-04 0:50 ` Kevin Hao
2013-08-06 0:10 ` Scott Wood
2013-08-06 1:23 ` Kevin Hao
2013-08-06 0:14 ` Scott Wood
2013-08-06 1:45 ` Kevin Hao
2013-07-04 12:54 ` [PATCH v2 8/8] powerpc/fsl_booke: enable the relocatable for the kdump kernel Kevin Hao
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