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From: Mathieu Poirier <mathieu.poirier@linaro.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, suzuki.poulose@arm.com,
mike.leach@linaro.org, leo.yan@linaro.org,
jonathan.cameron@huawei.com, daniel.thompson@linaro.org,
joro@8bytes.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: Wed, 24 Nov 2021 10:51:11 -0700 [thread overview]
Message-ID: <20211124175111.GA35341@p14s> (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.
>
> Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
> ---
> drivers/iommu/iommu.c | 2 ++
> include/linux/iommu.h | 4 ++--
> 2 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index dd7863e453a5..e96711eee965 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -2792,6 +2792,7 @@ void iommu_get_resv_regions(struct device *dev, struct list_head *list)
> if (ops && ops->get_resv_regions)
> ops->get_resv_regions(dev, list);
> }
> +EXPORT_SYMBOL_GPL(iommu_get_resv_regions);
>
> void iommu_put_resv_regions(struct device *dev, struct list_head *list)
> {
> @@ -2800,6 +2801,7 @@ void iommu_put_resv_regions(struct device *dev, struct list_head *list)
> if (ops && ops->put_resv_regions)
> ops->put_resv_regions(dev, list);
> }
> +EXPORT_SYMBOL_GPL(iommu_put_resv_regions);
>
> /**
> * generic_iommu_put_resv_regions - Reserved region driver helper
> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index d2f3435e7d17..1b7b0f370e28 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
> @@ -450,8 +450,8 @@ extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, dma_addr_t io
> extern void iommu_set_fault_handler(struct iommu_domain *domain,
> iommu_fault_handler_t handler, void *token);
>
> -extern void iommu_get_resv_regions(struct device *dev, struct list_head *list);
> -extern void iommu_put_resv_regions(struct device *dev, struct list_head *list);
> +void iommu_get_resv_regions(struct device *dev, struct list_head *list);
> +void iommu_put_resv_regions(struct device *dev, struct list_head *list);
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
> extern void generic_iommu_put_resv_regions(struct device *dev,
> struct list_head *list);
> extern void iommu_set_default_passthrough(bool cmd_line);
> --
> 2.33.0
>
next prev parent reply other threads:[~2021-11-24 17:51 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 [this message]
2021-12-06 11:56 ` Joerg Roedel
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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