linux-kernel - Re: [PATCH 1/4] MIPS: Replace _PAGE_READ with _PAGE_NO

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Message-ID: <4DAC75C6.2060504@caviumnetworks.com>
Date:	Mon, 18 Apr 2011 10:32:54 -0700
From:	David Daney <ddaney@...iumnetworks.com>
To:	Kevin Cernekee <cernekee@...il.com>
CC:	Ralf Baechle <ralf@...ux-mips.org>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] MIPS: Replace _PAGE_READ with _PAGE_NO_READ

On 04/16/2011 09:44 AM, Kevin Cernekee wrote:
> Reuse more of the same definitions for the non-RIXI and RIXI cases.  This
> avoids having special cases for kernel_uses_smartmips_rixi cluttering up
> the pgtable*.h files.
>
> On hardware that does not support RI/XI, EntryLo bits 31:30 / 63:62 will
> remain unset and RI/XI permissions will not be enforced.
>
> Signed-off-by: Kevin Cernekee<cernekee@...il.com>
> ---
>   arch/mips/include/asm/pgtable-bits.h |   23 ++++++++---------------
>   arch/mips/include/asm/pgtable.h      |   21 ++++++++-------------
>   arch/mips/mm/tlbex.c                 |   17 +++++------------
>   3 files changed, 21 insertions(+), 40 deletions(-)
>
[...]

I like this patch.

How much testing have you done on non-RI/XI CPUs?

David Daney
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