From: Logan Gunthorpe <logang@deltatee.com>
To: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linux-nvme@lists.infradead.org, linux-rdma@vger.kernel.org
Cc: Bjorn Helgaas <bhelgaas@google.com>,
Christoph Hellwig <hch@lst.de>,
Christian Koenig <Christian.Koenig@amd.com>,
Jason Gunthorpe <jgg@mellanox.com>,
Sagi Grimberg <sagi@grimberg.me>, Keith Busch <kbusch@kernel.org>,
Jens Axboe <axboe@fb.com>,
Dan Williams <dan.j.williams@intel.com>,
Eric Pilmore <epilmore@gigaio.com>,
Stephen Bates <sbates@raithlin.com>,
Logan Gunthorpe <logang@deltatee.com>
Subject: [PATCH 12/14] PCI/P2PDMA: No longer require no-mmu for host bridge whitelist
Date: Mon, 22 Jul 2019 17:08:57 -0600 [thread overview]
Message-ID: <20190722230859.5436-13-logang@deltatee.com> (raw)
In-Reply-To: <20190722230859.5436-1-logang@deltatee.com>
Now that we map the requests correctly we can remove the iommu_present()
restriction.
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
drivers/pci/p2pdma.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c
index 76f51678342c..053f9ad59d79 100644
--- a/drivers/pci/p2pdma.c
+++ b/drivers/pci/p2pdma.c
@@ -18,7 +18,6 @@
#include <linux/percpu-refcount.h>
#include <linux/random.h>
#include <linux/seq_buf.h>
-#include <linux/iommu.h>
#include <linux/xarray.h>
struct pci_p2pdma {
@@ -303,9 +302,6 @@ static bool host_bridge_whitelist(struct pci_dev *a, struct pci_dev *b)
struct pci_host_bridge *host_a = pci_find_host_bridge(a->bus);
struct pci_host_bridge *host_b = pci_find_host_bridge(b->bus);
- if (iommu_present(a->dev.bus) || iommu_present(b->dev.bus))
- return false;
-
if (host_a == host_b)
return __host_bridge_whitelist(host_a, true);
--
2.20.1
next prev parent reply other threads:[~2019-07-22 23:10 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-22 23:08 [PATCH 00/14] PCI/P2PDMA: Support transactions that hit the host bridge Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 01/14] PCI/P2PDMA: Add constants for not-supported result upstream_bridge_distance() Logan Gunthorpe
2019-07-23 16:20 ` Koenig, Christian
2019-07-22 23:08 ` [PATCH 02/14] PCI/P2PDMA: Factor out __upstream_bridge_distance() Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 03/14] PCI/P2PDMA: Apply host bridge white list for ACS Logan Gunthorpe
2019-07-23 16:23 ` Koenig, Christian
2019-07-22 23:08 ` [PATCH 04/14] PCI/P2PDMA: Cache the result of upstream_bridge_distance() Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 05/14] PCI/P2PDMA: Factor out host_bridge_whitelist() Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 06/14] PCI/P2PDMA: Add whitelist support for Intel Host Bridges Logan Gunthorpe
2019-07-25 18:52 ` Jason Gunthorpe
2019-07-25 19:14 ` Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 07/14] PCI/P2PDMA: Add the provider's pci_dev to the dev_pgmap struct Logan Gunthorpe
2019-07-24 6:32 ` Christoph Hellwig
2019-07-24 15:50 ` Logan Gunthorpe
2019-07-25 6:02 ` Christoph Hellwig
2019-07-22 23:08 ` [PATCH 08/14] PCI/P2PDMA: Add attrs argument to pci_p2pdma_map_sg() Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 09/14] PCI/P2PDMA: Introduce pci_p2pdma_unmap_sg() Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 10/14] PCI/P2PDMA: Factor out __pci_p2pdma_map_sg() Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 11/14] PCI/P2PDMA: dma_map P2PDMA map requests that traverse the host bridge Logan Gunthorpe
2019-07-24 6:32 ` Christoph Hellwig
2019-07-24 15:58 ` Logan Gunthorpe
2019-07-25 6:10 ` Christoph Hellwig
2019-07-25 16:00 ` Logan Gunthorpe
2019-07-25 16:34 ` Jason Gunthorpe
2019-07-25 17:22 ` Logan Gunthorpe
2019-07-25 18:58 ` Jason Gunthorpe
2019-07-25 19:17 ` Logan Gunthorpe
2019-07-25 19:29 ` Jason Gunthorpe
2019-07-25 19:36 ` Logan Gunthorpe
2019-07-22 23:08 ` Logan Gunthorpe [this message]
2019-07-22 23:08 ` [PATCH 13/14] PCI/P2PDMA: Update documentation for pci_p2pdma_distance_many() Logan Gunthorpe
2019-07-22 23:08 ` [PATCH 14/14] PCI/P2PDMA: Introduce pci_p2pdma_[un]map_resource() Logan Gunthorpe
2019-07-23 16:28 ` Koenig, Christian
2019-07-23 16:58 ` Logan Gunthorpe
2019-07-24 6:32 ` Christoph Hellwig
2019-07-24 16:06 ` Logan Gunthorpe
2019-07-25 11:50 ` Christoph Hellwig
2019-07-25 16:00 ` Logan Gunthorpe
2019-07-23 16:30 ` [PATCH 00/14] PCI/P2PDMA: Support transactions that hit the host bridge Koenig, Christian
2019-07-23 16:58 ` Logan Gunthorpe
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