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From: Joerg Roedel <joro@8bytes.org>
To: Yicong Yang <yangyicong@hisilicon.com>
Cc: gregkh@linuxfoundation.org, helgaas@kernel.org,
alexander.shishkin@linux.intel.com, lorenzo.pieralisi@arm.com,
will@kernel.org, mark.rutland@arm.com,
mathieu.poirier@linaro.org, suzuki.poulose@arm.com,
mike.leach@linaro.org, leo.yan@linaro.org,
jonathan.cameron@huawei.com, daniel.thompson@linaro.org,
john.garry@huawei.com, shameerali.kolothum.thodi@huawei.com,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org,
linux-pci@vger.kernel.org, linux-perf-users@vger.kernel.org,
iommu@lists.linux-foundation.org, prime.zeng@huawei.com,
liuqi115@huawei.com, zhangshaokun@hisilicon.com,
linuxarm@huawei.com, song.bao.hua@hisilicon.com
Subject: Re: [PATCH v2 1/6] iommu: Export iommu_{get,put}_resv_regions()
Date: Mon, 6 Dec 2021 12:56:21 +0100 [thread overview]
Message-ID: <Ya36ZSG1LFjhGGfO@8bytes.org> (raw)
In-Reply-To: <20211116090625.53702-2-yangyicong@hisilicon.com>
On Tue, Nov 16, 2021 at 05:06:20PM +0800, Yicong Yang wrote:
> Export iommu_{get,put}_resv_regions() to the modules so that the driver
> can retrieve and use the reserved regions of the device.
Why should any driver bother? These functions are only used by the iommu
core to call into iommu drivers to get information about needed direct
mappings. Why drivers need this information belongs into this commit
message.
Regards,
Joerg
next prev parent reply other threads:[~2021-12-06 11:56 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-16 9:06 [PATCH v2 0/6] Add support for HiSilicon PCIe Tune and Trace device Yicong Yang
2021-11-16 9:06 ` [PATCH v2 1/6] iommu: Export iommu_{get,put}_resv_regions() Yicong Yang
2021-11-24 17:51 ` Mathieu Poirier
2021-12-06 11:56 ` Joerg Roedel [this message]
2021-12-06 12:56 ` Yicong Yang
2021-11-16 9:06 ` [PATCH v2 2/6] hwtracing: Add trace function support for HiSilicon PCIe Tune and Trace device Yicong Yang
2021-11-16 10:56 ` Robin Murphy
2021-11-16 11:37 ` Yicong Yang
2021-11-18 9:01 ` Yicong Yang
2021-11-25 15:49 ` Robin Murphy
2021-11-29 8:22 ` Yicong Yang
2021-12-07 16:31 ` Robin Murphy
2021-12-09 13:19 ` Yicong Yang
2021-11-24 18:51 ` Mathieu Poirier
2021-11-25 8:39 ` Yicong Yang
2021-11-25 18:50 ` Mathieu Poirier
2021-11-26 17:10 ` Mathieu Poirier
2021-11-29 8:59 ` Yicong Yang
2021-11-29 8:45 ` Yicong Yang
2021-11-16 9:06 ` [PATCH v2 3/6] hwtracing: Add tune " Yicong Yang
2021-11-16 9:06 ` [PATCH v2 4/6] perf tool: Add support for HiSilicon PCIe Tune and Trace device driver Yicong Yang
2021-11-16 9:06 ` [PATCH v2 5/6] docs: Add HiSilicon PTT device driver documentation Yicong Yang
2021-11-16 9:06 ` [PATCH v2 6/6] MAINTAINERS: Add maintainer for HiSilicon PTT driver Yicong Yang
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