From: "Chen, Kenneth W" <kenneth.w.chen@intel.com>
To: linux-ia64@vger.kernel.org
Subject: RE: [rfc] dynamic 3-level / 4-level page table
Date: Fri, 28 Apr 2006 17:16:25 +0000 [thread overview]
Message-ID: <4t153d$rpjna@azsmga001.ch.intel.com> (raw)
In-Reply-To: <4sur0l$s99mf@fmsmga001.fm.intel.com>
Zoltan Menyhart wrote on Friday, April 28, 2006 1:58 AM
> Could you please describe how e.g. the VHPT miss handler works
> with the modification?
> Especially the "LOAD_PGD()" related operations.
LOAD_PGD() is a clone of pud_offset():
+#define pud_offset(dir,addr) ((pud_t *) (pgtbl3 ? (u64) (dir) : pgd_page(*(dir))) + \
+ (((addr) >> PUD_SHIFT) & (PTRS_PER_PUD - 1)))
Except pgtbl3 condition is evaluated only once at boot time.
next prev parent reply other threads:[~2006-04-28 17:16 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-28 2:09 [rfc] dynamic 3-level / 4-level page table Chen, Kenneth W
2006-04-28 8:57 ` Zoltan Menyhart
2006-04-28 15:33 ` Robin Holt
2006-04-28 17:16 ` Chen, Kenneth W [this message]
2006-04-28 17:22 ` Chen, Kenneth W
2006-05-02 8:28 ` Zoltan Menyhart
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