Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1414656

[PATCH V4 0/5] Add two-level support for ITS device table

From Shanker Donthineni <shankerd@codeaurora.org>
Newsgroups linux.kernel
Subject [PATCH V4 0/5] Add two-level support for ITS device table
Date 2016-06-06 07:50 +0200
Message-ID <rGVAd-Hu-3@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

Show all headers | View raw


This patchset contains necessary code changes to support two-level
(Indirection) table walk feature for device table.

Shanker Donthineni (5):
  irqchip/gicv3-its: Introduce two helper functions for accessing BASERn
  irqchip/gicv3-its: Add a new function for parsing device table BASERn
  irqchip/gicv3-its: Split its_alloc_tables() into two functions
  irqchip/gicv3-its: Remove an unused argument 'node_name'
  irqchip/gicv3-its: Implement two-level(indirect) device table support

 drivers/irqchip/irq-gic-v3-its.c   | 414 +++++++++++++++++++++++--------------
 include/linux/irqchip/arm-gic-v3.h |   4 +
 2 files changed, 266 insertions(+), 152 deletions(-)

-- 
This patchset created on top of Marc Zyngier's branch https://git.kernel.org/cgit/linux/kernel/git/maz/arm-platforms.git/log/?h=irq/irqchip-4.7-rc1

I have tested the Indirection feature on Qualcomm Technologies QDF2XXX server platform. See the below ITS driver log mesaages.
[    0.000000] GICv3: GIC: Using split EOI/Deactivate mode
[    0.000000] ITS@0x00000000397e0000
[    0.000000] ITS@0x00000000397e0000: allocated 524288 Devices @47c0400000 (indirect, esz 8, psz 64K, shr 1)
[    0.000000] ITS@0x00000000397e0000: allocated 8192 Interrupt Collections @47c0050000 (flat, esz 8, psz 64K, shr 1)
[    0.000000] ITS@0x00000000397e0000: allocated 8192 Virtual CPUs @47c0060000 (flat, esz 8, psz 64K, shr 1)

Changes since v3:
  Added pathces 1/5, 2/5 and 4/5.

Qualcomm Technologies, Inc. on behalf of Qualcomm Innovation Center, Inc. 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, 
a Linux Foundation Collaborative Project

Back to linux.kernel | Previous | NextNext in thread | Find similar | Unroll thread


Thread

[PATCH V4 0/5] Add two-level support for ITS device table Shanker Donthineni <shankerd@codeaurora.org> - 2016-06-06 07:50 +0200
  [PATCH V4 3/5] irqchip/gicv3-its: Split its_alloc_tables() into two functions Shanker Donthineni <shankerd@codeaurora.org> - 2016-06-06 07:50 +0200
  [PATCH V4 4/5] irqchip/gicv3-its: Remove an unused argument 'node_name' Shanker Donthineni <shankerd@codeaurora.org> - 2016-06-06 07:50 +0200
  [PATCH V4 1/5] irqchip/gicv3-its: Introduce two helper functions for accessing BASERn Shanker Donthineni <shankerd@codeaurora.org> - 2016-06-06 07:50 +0200
    Re: [PATCH V4 1/5] irqchip/gicv3-its: Introduce two helper functions  for accessing BASERn Marc Zyngier <marc.zyngier@arm.com> - 2016-06-06 10:40 +0200
    Re: [PATCH V4 1/5] irqchip/gicv3-its: Introduce two helper functions  for accessing BASERn Marc Zyngier <marc.zyngier@arm.com> - 2016-06-06 15:10 +0200

csiph-web