From: Jason Gunthorpe <jgg@nvidia.com>
To: Niklas Schnelle <schnelle@linux.ibm.com>
Cc: iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Matthew Rosato <mjrosato@linux.ibm.com>,
Gerd Bayer <gbayer@linux.ibm.com>,
Pierre Morel <pmorel@linux.ibm.com>,
linux-s390@vger.kernel.org, borntraeger@linux.ibm.com,
hca@linux.ibm.com, gor@linux.ibm.com,
gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com,
svens@linux.ibm.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v7 6/6] iommu/s390: Implement map_pages()/unmap_pages() instead of map()/unmap()
Date: Mon, 24 Oct 2022 13:59:23 -0300 [thread overview]
Message-ID: <Y1bEaytSOAoVjtLq@nvidia.com> (raw)
In-Reply-To: <20221017124558.1386337-7-schnelle@linux.ibm.com>
On Mon, Oct 17, 2022 at 02:45:58PM +0200, Niklas Schnelle wrote:
> While s390-iommu currently implements the map_page()/unmap_page()
> operations which only map/unmap a single page at a time the internal
> s390_iommu_update_trans() API already supports mapping/unmapping a range
> of pages at once. Take advantage of this by implementing the
> map_pages()/unmap_pages() operations instead thus allowing users of the
> IOMMU drivers to map multiple pages in a single call followed by
> a single I/O TLB flush if needed.
>
> Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
> ---
> drivers/iommu/s390-iommu.c | 48 +++++++++++++++++++++++++-------------
> 1 file changed, 32 insertions(+), 16 deletions(-)
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
prev parent reply other threads:[~2022-10-24 16:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-17 12:45 [PATCH v7 0/6] iommu/s390: Fixes related to attach and aperture handling Niklas Schnelle
2022-10-17 12:45 ` [PATCH v7 1/6] iommu/s390: Fix duplicate domain attachments Niklas Schnelle
2022-10-24 16:52 ` Jason Gunthorpe
2022-10-17 12:45 ` [PATCH v7 2/6] iommu/s390: Get rid of s390_domain_device Niklas Schnelle
2022-10-24 16:52 ` Jason Gunthorpe
2022-10-17 12:45 ` [PATCH v7 3/6] iommu/s390: Fix potential s390_domain aperture shrinking Niklas Schnelle
2022-10-24 15:02 ` Niklas Schnelle
2022-10-24 16:53 ` Jason Gunthorpe
2022-10-17 12:45 ` [PATCH v7 4/6] iommu/s390: Fix incorrect aperture check Niklas Schnelle
2022-10-24 16:54 ` Jason Gunthorpe
2022-10-17 12:45 ` [PATCH v7 5/6] iommu/s390: Fix incorrect pgsize_bitmap Niklas Schnelle
2022-10-17 12:45 ` [PATCH v7 6/6] iommu/s390: Implement map_pages()/unmap_pages() instead of map()/unmap() Niklas Schnelle
2022-10-24 16:59 ` Jason Gunthorpe [this message]
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