linux-kernel - [PATCH v2 0/2] add nr_ats

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Message-ID: <20190815054439.30652-1-thunder.leizhen@huawei.com>
Date:   Thu, 15 Aug 2019 13:44:37 +0800
From:   Zhen Lei <thunder.leizhen@...wei.com>
To:     Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        "Jean-Philippe Brucker" <jean-philippe@...aro.org>,
        John Garry <john.garry@...wei.com>,
        "Robin Murphy" <robin.murphy@....com>,
        Will Deacon <will@...nel.org>, Joerg Roedel <joro@...tes.org>,
        iommu <iommu@...ts.linux-foundation.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
CC:     Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH v2 0/2] add nr_ats_masters for quickly check

v1 --> v2:
1. change the type of nr_ats_masters from atomic_t to int, and move its
   ind/dec operation from arm_smmu_enable_ats()/arm_smmu_disable_ats() to
   arm_smmu_attach_dev()/arm_smmu_detach_dev(), and protected by
   "spin_lock_irqsave(&smmu_domain->devices_lock, flags);"

Zhen Lei (2):
  iommu/arm-smmu-v3: don't add a master into smmu_domain before it's
    ready
  iommu/arm-smmu-v3: add nr_ats_masters for quickly check

 drivers/iommu/arm-smmu-v3.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

-- 
1.8.3