linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Leonardo Bras <leonardo@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Cc: Leonardo Bras <leonardo@linux.ibm.com>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Arnd Bergmann <arnd@arndb.de>,
	"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
	Christophe Leroy <christophe.leroy@c-s.fr>,
	Andrew Morton <akpm@linux-foundation.org>,
	Dan Williams <dan.j.williams@intel.com>,
	Nicholas Piggin <npiggin@gmail.com>,
	Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Richard Fontana <rfontana@redhat.com>,
	Ganesh Goudar <ganeshgr@linux.ibm.com>,
	Allison Randal <allison@lohutok.net>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Mike Rapoport <rppt@linux.ibm.com>,
	YueHaibing <yuehaibing@huawei.com>,
	Ira Weiny <ira.weiny@intel.com>, Jason Gunthorpe <jgg@ziepe.ca>,
	John Hubbard <jhubbard@nvidia.com>,
	Keith Busch <keith.busch@intel.com>
Subject: [PATCH v2 10/11] powerpc/book3s_64: Enables counting method to monitor lockless pgtbl walk
Date: Fri, 20 Sep 2019 16:50:46 -0300	[thread overview]
Message-ID: <20190920195047.7703-11-leonardo@linux.ibm.com> (raw)
In-Reply-To: <20190920195047.7703-1-leonardo@linux.ibm.com>

Enables count-based monitoring method for lockless pagetable walks on
PowerPC book3s_64.

Other architectures/platforms fallback to using generic dummy functions.

Signed-off-by: Leonardo Bras <leonardo@linux.ibm.com>
---
 arch/powerpc/include/asm/book3s/64/pgtable.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 06a6a5344770..7a8813dfaee9 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1391,5 +1391,10 @@ static inline bool pgd_is_leaf(pgd_t pgd)
 	return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE));
 }
 
+#define __HAVE_ARCH_LOCKLESS_PGTBL_WALK_COUNTER
+void start_lockless_pgtbl_walk(struct mm_struct *mm);
+void end_lockless_pgtbl_walk(struct mm_struct *mm);
+int running_lockless_pgtbl_walk(struct mm_struct *mm);
+
 #endif /* __ASSEMBLY__ */
 #endif /* _ASM_POWERPC_BOOK3S_64_PGTABLE_H_ */
-- 
2.20.1


  parent reply	other threads:[~2019-09-20 19:52 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-20 19:50 [PATCH v2 00/11] Introduces new count-based method for monitoring lockless pagetable wakls Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 01/11] powerpc/mm: Adds counting method to monitor lockless pgtable walks Leonardo Bras
     [not found]   ` <90ceb0ca-9f04-65a5-586c-e37c2ecc6e4e@nvidia.com>
2019-09-23 20:50     ` Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 02/11] asm-generic/pgtable: Adds dummy functions " Leonardo Bras
     [not found]   ` <cb7d4196-c646-82c7-d61f-b28ee9ab47b9@nvidia.com>
2019-09-23 20:48     ` Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 03/11] mm/gup: Applies counting method to monitor gup_pgd_range Leonardo Bras
     [not found]   ` <2e060677-eadf-c32e-d8c5-8e22c8ca118e@nvidia.com>
2019-09-23 21:01     ` Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 04/11] powerpc/mce_power: Applies counting method to monitor lockless pgtbl walks Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 05/11] powerpc/perf: " Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 06/11] powerpc/mm/book3s64/hash: " Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 07/11] powerpc/kvm/e500: " Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 08/11] powerpc/kvm/book3s_hv: " Leonardo Bras
2019-09-20 19:50 ` [PATCH v2 09/11] powerpc/kvm/book3s_64: " Leonardo Bras
2019-09-20 19:50 ` Leonardo Bras [this message]
2019-09-20 19:50 ` [PATCH v2 11/11] powerpc/mm/book3s64/pgtable: Uses counting method to skip serializing Leonardo Bras
     [not found]   ` <1b39eaa7-751d-40bc-d3d7-41aaa15be42a@nvidia.com>
2019-09-20 20:28     ` Leonardo Bras
     [not found]       ` <4ea26ffb-ad03-bdff-7893-95332b22a5fd@nvidia.com>
2019-09-23 17:25         ` Leonardo Bras
     [not found]           ` <8706a1f1-0c5e-d152-938b-f355b9a5aaa8@nvidia.com>
2019-09-23 19:40             ` Leonardo Bras
     [not found]               ` <1568b3ef-cec9-bf47-edaa-c775c2f544fb@nvidia.com>
2019-09-23 20:23                 ` Leonardo Bras
2019-09-23 20:26                   ` John Hubbard
2019-09-20 19:56 ` [PATCH v2 00/11] Introduces new count-based method for monitoring lockless pagetable wakls Leonardo Bras
2019-09-20 20:12 ` Leonardo Bras
     [not found]   ` <b2d47f4b-2bf2-20a8-2438-4fd3f9b08a63@nvidia.com>
2019-09-23 20:58     ` Leonardo Bras

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=20190920195047.7703-11-leonardo@linux.ibm.com \
    --to=leonardo@linux.ibm.com \
    --cc=akpm@linux-foundation.org \
    --cc=allison@lohutok.net \
    --cc=aneesh.kumar@linux.ibm.com \
    --cc=arnd@arndb.de \
    --cc=benh@kernel.crashing.org \
    --cc=christophe.leroy@c-s.fr \
    --cc=dan.j.williams@intel.com \
    --cc=ganeshgr@linux.ibm.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=ira.weiny@intel.com \
    --cc=jgg@ziepe.ca \
    --cc=jhubbard@nvidia.com \
    --cc=keith.busch@intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=mahesh@linux.vnet.ibm.com \
    --cc=mpe@ellerman.id.au \
    --cc=npiggin@gmail.com \
    --cc=paulus@samba.org \
    --cc=rfontana@redhat.com \
    --cc=rppt@linux.ibm.com \
    --cc=tglx@linutronix.de \
    --cc=yuehaibing@huawei.com \
    /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).