From: Paul Mackerras <paulus@ozlabs.org>
To: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: linuxppc-dev@ozlabs.org, Michael Ellerman <mpe@ellerman.id.au>
Subject: Re: [PATCH 3/9] powerpc/mm/book3s-64: Use physical addresses in upper page table tree levels
Date: Tue, 23 Feb 2016 12:16:08 +1100 [thread overview]
Message-ID: <20160223011608.GA26469@fergus.ozlabs.ibm.com> (raw)
In-Reply-To: <871t85finc.fsf@linux.vnet.ibm.com>
On Mon, Feb 22, 2016 at 10:25:51AM +0530, Aneesh Kumar K.V wrote:
> Paul Mackerras <paulus@ozlabs.org> writes:
>
> > From: Paul Mackerras <paulus@samba.org>
> >
> > This changes the Linux page tables to store physical addresses
> > rather than kernel virtual addresses in the upper levels of the
> > tree (pgd, pud and pmd) for 64-bit Book 3S machines.
> >
> > This frees up some high order bits, and will be needed with
> > PowerISA v3.0 machines which read the page table tree in hardware
> > in radix mode.
>
> How about hugepd pointer with 4k linux page size ?
Yes, I need to fix them too. New series coming...
Paul.
next prev parent reply other threads:[~2016-02-23 1:19 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-22 2:41 [PATCH 0/9] powerpc/mm: Restructure Linux PTE on Book3S/64 to radix format Paul Mackerras
2016-02-22 2:41 ` [PATCH 1/9] powerpc/mm/book3s-64: Clean up some obsolete or misleading comments Paul Mackerras
2016-02-29 11:05 ` [1/9] " Michael Ellerman
2016-02-22 2:41 ` [PATCH 2/9] powerpc/mm/book3s-64: Free up 7 high-order bits in the Linux PTE Paul Mackerras
2016-02-22 2:41 ` [PATCH 3/9] powerpc/mm/book3s-64: Use physical addresses in upper page table tree levels Paul Mackerras
2016-02-22 4:55 ` Aneesh Kumar K.V
2016-02-23 1:16 ` Paul Mackerras [this message]
2016-02-22 7:06 ` Aneesh Kumar K.V
2016-02-23 1:19 ` Paul Mackerras
2016-02-23 2:36 ` [PATCH v2 " Paul Mackerras
2016-02-22 2:41 ` [PATCH 4/9] powerpc/mm/book3s-64: Move _PAGE_PRESENT to the most significant bit Paul Mackerras
2016-02-22 2:41 ` [PATCH 5/9] powerpc/mm/book3s-64: Move _PAGE_PTE to 2nd " Paul Mackerras
2016-02-22 2:41 ` [PATCH 6/9] powerpc/mm/book3s-64: Move HPTE-related bits in PTE to upper end Paul Mackerras
2016-02-22 2:41 ` [PATCH 7/9] powerpc/mm/book3s-64: Shuffle read, write, execute and user bits in PTE Paul Mackerras
2016-02-22 2:41 ` [PATCH 8/9] powerpc/mm/book3s-64: Move software-used " Paul Mackerras
2016-02-22 2:41 ` [PATCH 9/9] powerpc/mm/book3s-64: Expand the real page number field of the Linux PTE Paul Mackerras
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