From: Zhen Lei <thunder.leizhen@huawei.com>
To: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>,
"Jean-Philippe Brucker" <jean-philippe@linaro.org>,
John Garry <john.garry@huawei.com>,
"Robin Murphy" <robin.murphy@arm.com>,
Will Deacon <will@kernel.org>, Joerg Roedel <joro@8bytes.org>,
iommu <iommu@lists.linux-foundation.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Cc: Zhen Lei <thunder.leizhen@huawei.com>
Subject: [PATCH v2 0/2] add nr_ats_masters for quickly check
Date: Thu, 15 Aug 2019 13:44:37 +0800 [thread overview]
Message-ID: <20190815054439.30652-1-thunder.leizhen@huawei.com> (raw)
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
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next reply other threads:[~2019-08-15 5:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-15 5:44 Zhen Lei [this message]
2019-08-15 5:44 ` [PATCH v2 1/2] iommu/arm-smmu-v3: don't add a master into smmu_domain before it's ready Zhen Lei
2019-08-15 5:44 ` [PATCH v2 2/2] iommu/arm-smmu-v3: add nr_ats_masters for quickly check Zhen Lei
2019-08-15 15:23 ` Will Deacon
2019-08-16 10:12 ` Leizhen (ThunderTown)
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