From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 09/11] asm-generic/tlb: Track which levels of the page tables have been cleared
Date: Tue, 28 Aug 2018 14:12:43 +0100 [thread overview]
Message-ID: <20180828131243.GC26727@arm.com> (raw)
In-Reply-To: <20180827075341.GY24124@hirez.programming.kicks-ass.net>
On Mon, Aug 27, 2018 at 09:53:41AM +0200, Peter Zijlstra wrote:
> On Fri, Aug 24, 2018 at 04:52:44PM +0100, Will Deacon wrote:
> > +static inline unsigned long tlb_get_unmap_granule(struct mmu_gather *tlb)
> > +{
> > + if (tlb->cleared_ptes)
> > + return PAGE_SIZE;
> > + if (tlb->cleared_pmds)
> > + return PMD_SIZE;
> > + if (tlb->cleared_puds)
> > + return PUD_SIZE;
> > + if (tlb->cleared_p4ds)
> > + return P4D_SIZE;
> > +
> > + return PAGE_SIZE;
> > +}
>
> When doing the x86 patch; I found _SHIFT more useful than _SIZE.
I'll make that change for the next version.
Cheers,
Will
next prev parent reply other threads:[~2018-08-28 13:12 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-24 15:52 [RFC PATCH 00/11] Avoid synchronous TLB invalidation for intermediate page-table entries on arm64 Will Deacon
2018-08-24 15:52 ` [RFC PATCH 01/11] arm64: tlb: Use last-level invalidation in flush_tlb_kernel_range() Will Deacon
2018-08-24 15:52 ` [RFC PATCH 02/11] arm64: tlb: Add DSB ISHST prior to TLBI in __flush_tlb_[kernel_]pgtable() Will Deacon
2018-08-24 17:56 ` Peter Zijlstra
2018-08-28 13:03 ` Will Deacon
2018-08-24 15:52 ` [RFC PATCH 03/11] arm64: pgtable: Implement p[mu]d_valid() and check in set_p[mu]d() Will Deacon
2018-08-24 16:15 ` Linus Torvalds
2018-08-28 12:49 ` Will Deacon
2018-08-24 15:52 ` [RFC PATCH 04/11] arm64: tlb: Justify non-leaf invalidation in flush_tlb_range() Will Deacon
2018-08-24 15:52 ` [RFC PATCH 05/11] arm64: tlbflush: Allow stride to be specified for __flush_tlb_range() Will Deacon
2018-08-24 15:52 ` [RFC PATCH 06/11] arm64: tlb: Remove redundant !CONFIG_HAVE_RCU_TABLE_FREE code Will Deacon
2018-08-24 15:52 ` [RFC PATCH 07/11] asm-generic/tlb: Guard with #ifdef CONFIG_MMU Will Deacon
2018-08-24 15:52 ` [RFC PATCH 08/11] asm-generic/tlb: Track freeing of page-table directories in struct mmu_gather Will Deacon
2018-08-27 4:44 ` Nicholas Piggin
2018-08-28 13:46 ` Peter Zijlstra
2018-08-28 13:48 ` Peter Zijlstra
2018-08-28 14:12 ` Nicholas Piggin
2018-08-24 15:52 ` [RFC PATCH 09/11] asm-generic/tlb: Track which levels of the page tables have been cleared Will Deacon
2018-08-27 7:53 ` Peter Zijlstra
2018-08-28 13:12 ` Will Deacon [this message]
2018-08-24 15:52 ` [RFC PATCH 10/11] arm64: tlb: Adjust stride and type of TLBI according to mmu_gather Will Deacon
2018-08-24 15:52 ` [RFC PATCH 11/11] arm64: tlb: Avoid synchronous TLBIs when freeing page tables Will Deacon
2018-08-24 16:20 ` [RFC PATCH 00/11] Avoid synchronous TLB invalidation for intermediate page-table entries on arm64 Linus Torvalds
2018-08-26 10:56 ` Peter Zijlstra
2018-09-04 18:38 ` Jon Masters
2018-09-05 12:28 ` Will Deacon
2018-09-07 6:36 ` Jon Masters
2018-09-13 15:53 ` Will Deacon
2018-09-13 16:53 ` Jon Masters
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180828131243.GC26727@arm.com \
--to=will.deacon@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).