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| author |   Kishon Vijay Abraham I <kishon@ti.com> | 2018-01-11 14:00:57 +0530 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2018-01-11 10:06:34 +0000 |
| commit | b330104fa76df3eae6e199a23791fed5d35f06b4 (patch) | |
| tree | ced5238bb496c9bc67c84e33cdf679b324924790 /drivers/pci/endpoint/pci-epf-core.c | |
| parent | PCI: designware-ep: Fix ->get_msi() to check MSI_EN bit (diff) | |
| download | linux-dev-b330104fa76df3eae6e199a23791fed5d35f06b4.tar.xz linux-dev-b330104fa76df3eae6e199a23791fed5d35f06b4.zip | |
PCI: endpoint: Use EPC's device in dma_alloc_coherent()/dma_free_coherent()
After commit 723288836628 ("of: restrict DMA configuration"),
of_dma_configure() doesn't configure the coherent_dma_mask/dma_mask
of endpoint function device (since it doesn't have a DT node associated
with and hence no dma-ranges property), resulting in
dma_alloc_coherent() (used in pci_epf_alloc_space()) to fail.
Fix it by making dma_alloc_coherent() use EPC's device for allocating
memory address.
Link: http://lkml.kernel.org/r/64d63468-d28f-8fcd-a6f3-cf2a6401c8cb@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
[lorenzo.pieralisi@arm.com: tweaked commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Tested-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Tested-by: Niklas Cassel <niklas.cassel@axis.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'drivers/pci/endpoint/pci-epf-core.c')
| -rw-r--r-- | drivers/pci/endpoint/pci-epf-core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/endpoint/pci-epf-core.c b/drivers/pci/endpoint/pci-epf-core.c index ae1611a62808..95ccc4b8a0a2 100644 --- a/drivers/pci/endpoint/pci-epf-core.c +++ b/drivers/pci/endpoint/pci-epf-core.c @@ -99,7 +99,7 @@ EXPORT_SYMBOL_GPL(pci_epf_bind); */ void pci_epf_free_space(struct pci_epf *epf, void *addr, enum pci_barno bar) { - struct device *dev = &epf->dev; + struct device *dev = epf->epc->dev.parent; if (!addr) return; @@ -122,7 +122,7 @@ EXPORT_SYMBOL_GPL(pci_epf_free_space); void *pci_epf_alloc_space(struct pci_epf *epf, size_t size, enum pci_barno bar) { void *space; - struct device *dev = &epf->dev; + struct device *dev = epf->epc->dev.parent; dma_addr_t phys_addr; if (size < 128) |