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Re: [PATCH] x86: Clean up files of Intel Processor Trace

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On 3 August 2015 at 12:08, Peter Zijlstra <peterz@infradead.org> wrote:
> On Mon, Aug 03, 2015 at 12:03:13PM +0300, Alexander Shishkin wrote:
>> Takao Indoh <indou.takao@jp.fujitsu.com> writes:
>
>> Even though TOPA_SHIFT happens to be the same as PAGE_SHIFT, it is a
>> property of a separate hardware block, not mmu. PAGE_SHIFT is 12, but
>> 12 is not always PAGE_SHIFT.
>
> PAGE_SHIFT is _always_ 12 on x86. Changing that will require changing
> the page table format, a rather unlikely thing to go happen.

Of course. Yet that doesn't justify turning every 12 into PAGE_SHIFT
is what I'm saying.

Oh, look, it's PAGE_SHIFT o'clock on x86, time for lunch. :)

Regards,
--
Alex
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[PATCH] x86: Clean up files of Intel Processor Trace Takao Indoh <indou.takao@jp.fujitsu.com> - 2015-08-03 10:20 +0200
  Re: [PATCH] x86: Clean up files of Intel Processor Trace Alexander Shishkin <alexander.shishkin@linux.intel.com> - 2015-08-03 11:10 +0200
    Re: [PATCH] x86: Clean up files of Intel Processor Trace Peter Zijlstra <peterz@infradead.org> - 2015-08-03 11:10 +0200
      Re: [PATCH] x86: Clean up files of Intel Processor Trace Alexander Shishkin <alexander.shishkin@linux.intel.com> - 2015-08-03 11:50 +0200
        Re: [PATCH] x86: Clean up files of Intel Processor Trace Takao Indoh <indou.takao@jp.fujitsu.com> - 2015-08-04 03:10 +0200
      Re: [PATCH] x86: Clean up files of Intel Processor Trace Borislav Petkov <bp@alien8.de> - 2015-08-03 13:10 +0200
        Re: [PATCH] x86: Clean up files of Intel Processor Trace Takao Indoh <indou.takao@jp.fujitsu.com> - 2015-08-04 03:20 +0200

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