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| author | Srinath Mannam <srinath.mannam@broadcom.com> | 2019-05-03 16:05:32 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2019-05-06 23:02:47 +0200 |
| commit | e80a91ad302b3b66822756afc61f9f9c1658b9c9 (patch) | |
| tree | 8bbad2f4880f11f64b83655efd49166c2e405e1a /drivers/pci/probe.c | |
| parent | Linux 5.1-rc1 (diff) | |
| download | linux-e80a91ad302b3b66822756afc61f9f9c1658b9c9.tar.xz linux-e80a91ad302b3b66822756afc61f9f9c1658b9c9.zip | |
PCI: Add dma_ranges window list
Add a dma_ranges field in PCI host bridge structure to hold resource
entries list of memory regions in sorted order representing memory ranges
that can be accessed through DMA transactions.
Based-on-a-patch-by: Oza Pawandeep <oza.oza@broadcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
[lorenzo.pieralisi@arm.com: updated commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Oza Pawandeep <poza@codeaurora.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/probe.c')
| -rw-r--r-- | drivers/pci/probe.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 2ec0df04e0dc..2a651089a606 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -595,6 +595,7 @@ struct pci_host_bridge *pci_alloc_host_bridge(size_t priv) return NULL; INIT_LIST_HEAD(&bridge->windows); + INIT_LIST_HEAD(&bridge->dma_ranges); bridge->dev.release = pci_release_host_bridge_dev; /* @@ -623,6 +624,7 @@ struct pci_host_bridge *devm_pci_alloc_host_bridge(struct device *dev, return NULL; INIT_LIST_HEAD(&bridge->windows); + INIT_LIST_HEAD(&bridge->dma_ranges); bridge->dev.release = devm_pci_release_host_bridge_dev; return bridge; @@ -632,6 +634,7 @@ EXPORT_SYMBOL(devm_pci_alloc_host_bridge); void pci_free_host_bridge(struct pci_host_bridge *bridge) { pci_free_resource_list(&bridge->windows); + pci_free_resource_list(&bridge->dma_ranges); kfree(bridge); } |