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Groups > linux.kernel > #1533875

[RFC PATCH 0/3] Add a new flag for ITS device to control indirect route

From Majun <majun258@huawei.com>
Newsgroups linux.kernel
Subject [RFC PATCH 0/3] Add a new flag for ITS device to control indirect route
Date 2016-12-01 08:50 +0100
Message-ID <sJuhX-PI-7@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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From: MaJun <majun258@huawei.com>

For current ITS driver, two level table (indirect route) is enabled when the memory used
for LPI route table over the limit(64KB * 2) size. But this function impact the 
performance of LPI interrupt actually because need more time to look up the table.

Although this function can save the memory needed, we'd better let the user
to decide enable or disable this function.

MaJun (3):
  Binding: Add a new property string in ITS node to control the two-level route function
  irqchip/gicv3-its:irqchip/gicv3-its: add a new flag to control indirect route in DT mode
  irqchip/gicv3-its:irqchip/gicv3-its: Add a new flag to control indirect route function in ACPI mode.

 .../bindings/interrupt-controller/arm,gic-v3.txt      |  3 +++
 drivers/irqchip/irq-gic-v3-its.c                      | 19 ++++++++++++++-----
 include/acpi/actbl1.h                                 |  3 ++-
 3 files changed, 19 insertions(+), 6 deletions(-)

-- 
1.7.12.4

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Thread

[RFC PATCH 0/3] Add a new flag for ITS device to control indirect route Majun <majun258@huawei.com> - 2016-12-01 08:50 +0100
  Re: [RFC PATCH 0/3] Add a new flag for ITS device to control indirect  route Marc Zyngier <marc.zyngier@arm.com> - 2016-12-01 10:10 +0100
    Re: [RFC PATCH 0/3] Add a new flag for ITS device to control indirect  route "majun (Euler7)" <majun258@huawei.com> - 2016-12-02 10:40 +0100
      Re: [RFC PATCH 0/3] Add a new flag for ITS device to control indirect  route Marc Zyngier <marc.zyngier@arm.com> - 2016-12-02 10:40 +0100
        Re: [RFC PATCH 0/3] Add a new flag for ITS device to control indirect  route "majun (Euler7)" <majun258@huawei.com> - 2016-12-05 04:20 +0100
          Re: [RFC PATCH 0/3] Add a new flag for ITS device to control indirect  route Marc Zyngier <marc.zyngier@arm.com> - 2016-12-05 10:20 +0100

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