From: Markos Chandras <markos.chandras@imgtec.com>
To: <linux-mips@linux-mips.org>
Cc: <alex@alex-smith.me.uk>,
Markos Chandras <markos.chandras@imgtec.com>,
<linux-kernel@vger.kernel.org>
Subject: [PATCH 0/3] MIPS VDSO support
Date: Mon, 28 Sep 2015 11:03:46 +0100 [thread overview]
Message-ID: <1443434629-14325-1-git-send-email-markos.chandras@imgtec.com> (raw)
Hi,
This series adds a proper VDSO to the kernel on MIPS. The first commit
adds the basic VDSO, replacing the current signal return trampoline
page. The following commits add user implementations of gettimeofday() and
clock_gettime() which can make use of either the CP0 count or the GIC
user-mode visible section.
A tree with these changes can be found at [1]. It's based on v4.3-rc3
Use of the time functions relies on glibc modifications. A patch for
this can be found in my repository at [2] and I will soon post it to the glibc
mailing list.
[1]: http://git.linux-mips.org/cgit/mchandras/linux.git/log/?h=4.3-vdso
[2]: https://github.com/hwoarang/glibc/tree/2.22-vdso
Alex Smith (3):
MIPS: Initial implementation of a VDSO
irqchip: irq-mips-gic: Provide function to map GIC user section
MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime()
arch/mips/Kbuild | 1 +
arch/mips/Kconfig | 5 +
arch/mips/include/asm/abi.h | 5 +-
arch/mips/include/asm/clocksource.h | 29 ++++
arch/mips/include/asm/elf.h | 7 +
arch/mips/include/asm/processor.h | 8 +-
arch/mips/include/asm/vdso.h | 139 +++++++++++++++--
arch/mips/include/uapi/asm/Kbuild | 2 +-
arch/mips/include/uapi/asm/auxvec.h | 17 ++
arch/mips/kernel/csrc-r4k.c | 44 ++++++
arch/mips/kernel/signal.c | 12 +-
arch/mips/kernel/signal32.c | 7 +-
arch/mips/kernel/signal_n32.c | 5 +-
arch/mips/kernel/vdso.c | 198 ++++++++++++++---------
arch/mips/vdso/.gitignore | 4 +
arch/mips/vdso/Makefile | 142 +++++++++++++++++
arch/mips/vdso/elf.S | 68 ++++++++
arch/mips/vdso/genvdso.c | 294 +++++++++++++++++++++++++++++++++++
arch/mips/vdso/genvdso.h | 188 ++++++++++++++++++++++
arch/mips/vdso/gettimeofday.c | 232 +++++++++++++++++++++++++++
arch/mips/vdso/sigreturn.S | 49 ++++++
arch/mips/vdso/vdso.h | 84 ++++++++++
arch/mips/vdso/vdso.lds.S | 103 ++++++++++++
drivers/clocksource/mips-gic-timer.c | 7 +-
drivers/irqchip/irq-mips-gic.c | 27 +++-
include/linux/irqchip/mips-gic.h | 24 ++-
26 files changed, 1572 insertions(+), 129 deletions(-)
create mode 100644 arch/mips/include/asm/clocksource.h
create mode 100644 arch/mips/include/uapi/asm/auxvec.h
create mode 100644 arch/mips/vdso/.gitignore
create mode 100644 arch/mips/vdso/Makefile
create mode 100644 arch/mips/vdso/elf.S
create mode 100644 arch/mips/vdso/genvdso.c
create mode 100644 arch/mips/vdso/genvdso.h
create mode 100644 arch/mips/vdso/gettimeofday.c
create mode 100644 arch/mips/vdso/sigreturn.S
create mode 100644 arch/mips/vdso/vdso.h
create mode 100644 arch/mips/vdso/vdso.lds.S
--
2.5.3
next reply other threads:[~2015-09-28 10:03 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-28 10:03 Markos Chandras [this message]
2015-09-28 10:10 ` [PATCH 1/3] MIPS: Initial implementation of a VDSO Markos Chandras
2015-09-28 10:54 ` Alex Smith
2015-09-28 13:07 ` Matthew Fortune
2015-11-20 18:15 ` Maciej W. Rozycki
2015-09-28 10:11 ` [PATCH 2/3] irqchip: irq-mips-gic: Provide function to map GIC user section Markos Chandras
2015-09-28 10:55 ` Marc Zyngier
2015-09-28 14:16 ` Qais Yousef
2015-09-28 15:03 ` Marc Zyngier
2015-10-05 8:22 ` Markos Chandras
2015-10-12 9:40 ` [PATCH v2 " Markos Chandras
2015-10-12 9:51 ` Marc Zyngier
2015-10-12 10:16 ` Thomas Gleixner
2015-10-15 9:37 ` Qais Yousef
2015-10-15 10:18 ` Thomas Gleixner
2015-09-28 10:12 ` [PATCH 3/3] MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime() Markos Chandras
2015-09-28 13:15 ` kbuild test robot
2015-10-12 10:24 ` [PATCH v2 " Markos Chandras
2015-10-21 8:57 ` [PATCH v3 " Markos Chandras
2015-10-23 1:41 ` [v3, " Leonid Yegoshin
2015-10-27 14:47 ` Ralf Baechle
2015-10-27 20:46 ` Leonid Yegoshin
2015-10-27 21:02 ` David Daney
2015-10-27 21:15 ` Leonid Yegoshin
2015-10-27 21:44 ` David Daney
2015-10-27 21:49 ` Leonid Yegoshin
2015-10-28 10:20 ` Alex Smith
2015-10-28 18:21 ` Leonid Yegoshin
2015-10-28 18:30 ` Alex Smith
2015-10-28 18:57 ` Leonid Yegoshin
2015-10-28 19:04 ` Alex Smith
2015-10-28 19:28 ` Leonid Yegoshin
2015-10-28 19:55 ` Alex Smith
2015-10-28 20:15 ` Leonid Yegoshin
2016-01-25 22:36 ` [PATCH v3 " Hauke Mehrtens
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=1443434629-14325-1-git-send-email-markos.chandras@imgtec.com \
--to=markos.chandras@imgtec.com \
--cc=alex@alex-smith.me.uk \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@linux-mips.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
all inboxes | Powered by JetHome®